74AVCH2T45
Dual-bit, dual-supply voltage level translator/transceiver;
3-state
Rev. 7 — 20 February 2018
1
Product data sheet
General description
The 74AVCH2T45 is a dual bit, dual supply transceiver that enables bidirectional level
translation. It features two data input-output ports (nA and nB), a direction control input
(DIR) and dual supply pins (VCC(A) and VCC(B)). Both VCC(A) and VCC(B) can be supplied at
any voltage between 0.8 V and 3.6 V making the device suitable for translating between
any of the low voltage nodes (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V). Pins nA and
DIR are referenced to VCC(A) and pins nB are referenced to VCC(B). A HIGH on DIR
allows transmission from nA to nB and a LOW on DIR allows transmission from nB to nA.
The device is fully specified for partial power-down applications using IOFF. The IOFF
circuitry disables the output, preventing any damaging backflow current through the
device when it is powered down. In suspend mode when either VCC(A) or VCC(B) are at
GND level, both A and B are in the high-impedance OFF-state.
The 74AVCH2T45 has active bus hold circuitry which is provided to hold unused or
floating data inputs at a valid logic level. This feature eliminates the need for external
pull-up or pull-down resistors.
2
Features and benefits
• Wide supply voltage range:
– VCC(A): 0.8 V to 3.6 V
– VCC(B): 0.8 V to 3.6 V
• High noise immunity
• Complies with JEDEC standards:
– JESD8-12 (0.8 V to 1.3 V)
– JESD8-11 (0.9 V to 1.65 V)
– JESD8-7 (1.2 V to 1.95 V)
– JESD8-5 (1.8 V to 2.7 V)
– JESD8-B (2.7 V to 3.6 V)
• ESD protection:
– HBM JESD22-A114F Class 3B exceeds 8000 V
– MM JESD22-A115-A exceeds 200 V
– CDM JESD22-C101C exceeds 1000 V
• Maximum data rates:
– 500 Mbps (1.8 V to 3.3 V translation)
– 320 Mbps (< 1.8 V to 3.3 V translation)
– 320 Mbps (translate to 2.5 V or 1.8 V)
– 280 Mbps (translate to 1.5 V)
– 240 Mbps (translate to 1.2 V)
• Suspend mode
• Bus hold on data inputs
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
•
•
•
•
•
•
3
Latch-up performance exceeds 100 mA per JESD 78 Class II
Inputs accept voltages up to 3.6 V
Low noise overshoot and undershoot < 10 % of VCC
IOFF circuitry provides partial Power-down mode operation
Multiple package options
Specified from -40 °C to +85 °C and -40 °C to +125 °C
Ordering information
Table 1. Ordering information
Type number
Package
Temperature range Name
Description
74AVCH2T45DC
-40 °C to +125 °C
VSSOP8
plastic very thin shrink small outline package; 8 leads; SOT765-1
body width 2.3 mm
74AVCH2T45GT
-40 °C to +125 °C
XSON8
plastic extremely thin small outline package; no leads; SOT833-1
8 terminals; body 1 × 1.95 × 0.5 mm
74AVCH2T45GF
-40 °C to +125 °C
XSON8
extremely thin small outline package; no leads;
8 terminals; body 1.35 × 1 × 0.5 mm
SOT1089
74AVCH2T45GN
-40 °C to +125 °C
XSON8
extremely thin small outline package; no leads;
8 terminals; body 1.2 × 1.0 × 0.35 mm
SOT1116
74AVCH2T45GS
-40 °C to +125 °C
XSON8
extremely thin small outline package; no leads;
8 terminals; body 1.35 × 1.0 × 0.35 mm
SOT1203
4
Version
Marking
Table 2. Marking
Type number
Marking code
74AVCH2T45DC
K45
74AVCH2T45GT
K45
74AVCH2T45GF
K5
74AVCH2T45GN
K5
74AVCH2T45GS
K5
[1]
[1] The pin 1 indicator is located on the lower left corner of the device, below the marking code.
74AVCH2T45
Product data sheet
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Rev. 7 — 20 February 2018
© Nexperia B.V. 2018. All rights reserved.
2 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
5
Functional diagram
DIR
1A
5
DIR
2
1A
7
2A
1B
1B
3
2A
6
VCC(A)
2B
2B
VCC(B)
VCC(A)
VCC(B)
001aag577
Figure 1. Logic symbol
6
001aag578
Figure 2. Logic diagram
Pinning information
6.1 Pinning
74AVCH2T45
VCC(A)
1
8
VCC(B)
1A
2
7
1B
2A
3
6
2B
GND
4
5
DIR
74AVCH2T45
VCC(A)
1
8
VCC(B)
1A
2
7
1B
2A
3
6
2B
GND
4
5
DIR
001aag583
Figure 3. Pin configuration SOT765-1
74AVCH2T45
Product data sheet
001aag584
Transparent top view
Figure 4. Pin configuration SOT833-1, SOT1089,
SOT1116 and SOT1203
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Rev. 7 — 20 February 2018
© Nexperia B.V. 2018. All rights reserved.
3 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
6.2 Pin description
Table 3. Pin description
Symbol
Pin
Description
VCC(A)
1
supply voltage port A and DIR
1A
2
data input or output
2A
3
data input or output
GND
4
ground (0 V)
DIR
5
direction control
2B
6
data input or output
1B
7
data input or output
VCC(B)
8
supply voltage port B
7
Functional description
Table 4. Function table
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
Supply voltage
Input
VCC(A), VCC(B)
DIR
0.8 V to 3.6 V
[2]
Input/output
[1]
nA
nB
L
nA = nB
input
0.8 V to 3.6 V
H
input
nB = nA
[3]
X
Z
Z
GND
[1] The input circuit of the data I/O is always active.
[2] The DIR input circuit is referenced to VCC(A).
[3] If at least one of VCC(A) or VCC(B) is at GND level, the device goes into suspend mode.
74AVCH2T45
Product data sheet
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Rev. 7 — 20 February 2018
© Nexperia B.V. 2018. All rights reserved.
4 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
8
Limiting values
Table 5. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
VCC(A)
Min
Max
Unit
supply voltage A
-0.5
+4.6
V
VCC(B)
supply voltage B
-0.5
+4.6
V
IIK
input clamping current
-50
-
-0.5
+4.6
-50
-
VI
input voltage
IOK
output clamping current
VO
Conditions
VI < 0 V
[1]
VO < 0 V
output voltage
Active mode
Suspend or 3-state mode
mA
V
mA
[1] [2] [3]
-0.5
[1]
-0.5
+4.6
V
VCCO + 0.5 V
IO
output current
VO = 0 V to VCCO
-
±50
mA
ICC
supply current
ICC(A) or ICC(B)
-
100
mA
IGND
ground current
-100
-
mA
Tstg
storage temperature
-65
+150
°C
-
250
mW
Min
Max
Unit
Ptot
[1]
[2]
[3]
[4]
total power dissipation
Tamb = -40 °C to +125 °C
[4]
The minimum input voltage rating and output voltage ratings may be exceeded if the input and output current ratings are observed.
VCCO is the supply voltage associated with the output port.
VCCO + 0.5 V should not exceed 4.6 V.
For VSSOP8 package: above 110 °C the value of Ptot derates linearly with 8 mW/K.
For XSON8 packages: above 118 °C the value of Ptot derates linearly with 7.8 mW/K.
9
Recommended operating conditions
Table 6. Recommended operating conditions
Symbol
Parameter
VCC(A)
supply voltage A
0.8
3.6
V
VCC(B)
supply voltage B
0.8
3.6
V
VI
input voltage
0
3.6
V
0
VCCO
V
0
3.6
V
-40
+125
°C
-
5
VO
Conditions
output voltage
Active mode
Suspend or 3-state mode
Tamb
ambient temperature
Δt/ΔV
input transition rise and fall rate
VCCI = 0.8 V to 3.6 V
[1]
ns/V
[1] VCCO is the supply voltage associated with the output port.
74AVCH2T45
Product data sheet
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74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
10 Static characteristics
[1] [2]
Table 7. Typical static characteristics at Tamb = 25 °C
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
Conditions
Min
Typ
Max
VOH
HIGH-level output
voltage
VI = VIH or VIL
-
0.69
-
V
LOW-level output
voltage
VI = VIH or VIL
-
0.07
-
V
II
input leakage current
DIR input; VI = 0 V or 3.6 V;
VCC(A) = VCC(B) = 0.8 V to 3.6 V
-
±0.025
±0.25
μA
IBHL
bus hold LOW current
VI = 0.42 V; VCC(A) = VCC(B) = 1.2 V
[3]
-
26
-
μA
bus hold HIGH current VI = 0.78 V; VCC(A) = VCC(B) = 1.2 V
[4]
-
-24
-
μA
IBHLO
bus hold LOW
overdrive current
VI = GND to VCCI; VCC(A) = VCC(B) = 1.2 V
[5]
-
28
-
μA
IBHHO
bus hold HIGH
overdrive current
VI = GND to VCCI; VCC(A) = VCC(B) = 1.2 V
[6]
-
-26
-
μA
IOZ
OFF-state output
current
A or B port; VO = 0 V or VCCO;
VCC(A) = VCC(B) = 0.8 V to 3.6 V
[7]
-
±0.5
±2.5
μA
IOFF
power-off leakage
current
A port; VI or VO = 0 V to 3.6 V; VCC(A) = 0 V;
VCC(B) = 0.8 V to 3.6 V
-
±0.1
±1
μA
B port; VI or VO = 0 V to 3.6 V; VCC(B) = 0 V;
VCC(A) = 0.8 V to 3.6 V
-
±0.1
±1
μA
VOL
IBHH
IO = -1.5 mA; VCC(A) = VCC(B) = 0.8 V
IO = 1.5 mA; VCC(A) = VCC(B) = 0.8 V
Unit
CI
input capacitance
DIR input; VI = 0 V or 3.3 V;
VCC(A) = VCC(B) = 3.3 V
-
1.0
-
pF
CI/O
input/output
capacitance
A and B port; Suspend mode; VO = VCCO or GND;
VCC(A) = VCC(B) = 3.3 V
-
4.0
-
pF
[1] VCCO is the supply voltage associated with the output port.
[2] VCCI is the supply voltage associated with the data input port.
[3] The bus hold circuit can sink at least the minimum low sustaining current at VIL max.
IBHL should be measured after lowering VI to GND and then raising it to VIL max.
[4] The bus hold circuit can source at least the minimum high sustaining current at VIH min.
IBHH should be measured after raising VI to VCC and then lowering it to VIH min.
[5] An external driver must source at least IBHLO to switch this node from LOW to HIGH.
[6] An external driver must sink at least IBHHO to switch this node from HIGH to LOW.
[7] For I/O ports, the parameter IOZ includes the input leakage current.
74AVCH2T45
Product data sheet
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74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
Table 8. Static characteristics
[1] [2]
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol
VIH
Parameter
HIGH-level
input voltage
Conditions
-40 °C to +85 °C
-40 °C to +125 °C
Unit
Min
Max
Min
Max
VCCI = 0.8 V
0.70VCCI
-
0.70VCCI
-
V
VCCI = 1.1 V to 1.95 V
0.65VCCI
-
0.65VCCI
-
V
VCCI = 2.3 V to 2.7 V
1.6
-
1.6
-
V
VCCI = 3.0 V to 3.6 V
2
-
2
-
V
VCC(A) = 0.8 V
0.70VCC(A)
-
0.70VCC(A)
-
V
VCC(A) = 1.1 V to 1.95 V
0.65VCC(A)
-
0.65VCC(A)
-
V
VCC(A) = 2.3 V to 2.7 V
1.6
-
1.6
-
V
VCC(A) = 3.0 V to 3.6 V
2
-
2
-
V
VCCI = 0.8 V
-
0.30VCCI
-
0.30VCCI
V
VCCI = 1.1 V to 1.95 V
-
0.35VCCI
-
0.35VCCI
V
VCCI = 2.3 V to 2.7 V
-
0.7
-
0.7
V
VCCI = 3.0 V to 3.6 V
-
0.9
-
0.9
V
VCC(A) = 0.8 V
-
0.30VCC(A)
-
0.30VCC(A) V
VCC(A) = 1.1 V to 1.95 V
-
0.35VCC(A)
-
0.35VCC(A) V
VCC(A) = 2.3 V to 2.7 V
-
0.7
-
0.7
V
VCC(A) = 3.0 V to 3.6 V
-
0.9
-
0.9
V
VCCO - 0.1
-
VCCO - 0.1
-
V
IO = -3 mA; VCC(A) = VCC(B) = 1.1 V
0.85
-
0.85
-
V
IO = -6 mA; VCC(A) = VCC(B) = 1.4 V
1.05
-
1.05
-
V
IO = -8 mA;
VCC(A) = VCC(B) = 1.65 V
1.2
-
1.2
-
V
IO = -9 mA; VCC(A) = VCC(B) = 2.3 V
1.75
-
1.75
-
V
IO = -12 mA;
VCC(A) = VCC(B) = 3.0 V
2.3
-
2.3
-
V
data input
DIR input
VIL
LOW-level
input voltage
data input
DIR input
VOH
VI = VIH or VIL
HIGH-level
output voltage
IO = -100 μA;
VCC(A) = VCC(B) = 0.8 V to 3.6 V
74AVCH2T45
Product data sheet
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74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
Symbol
VOL
Parameter
Conditions
-40 °C to +85 °C
Max
Min
Max
-
0.1
-
0.1
V
IO = 3 mA; VCC(A) = VCC(B) = 1.1 V
-
0.25
-
0.25
V
IO = 6 mA; VCC(A) = VCC(B) = 1.4 V
-
0.35
-
0.35
V
IO = 8 mA; VCC(A) = VCC(B) = 1.65 V
-
0.45
-
0.45
V
IO = 9 mA; VCC(A) = VCC(B) = 2.3 V
-
0.55
-
0.55
V
IO = 12 mA; VCC(A) = VCC(B) = 3.0 V
-
0.7
-
0.7
V
-
±1
-
±1.5
μA
15
-
15
-
μA
VI = 0.58 V;
VCC(A) = VCC(B) = 1.65 V
25
-
25
-
μA
VI = 0.70 V; VCC(A) = VCC(B) = 2.3 V
45
-
45
-
μA
VI = 0.80 V; VCC(A) = VCC(B) = 3.0 V
100
-
90
-
μA
VI = 0.91 V; VCC(A) = VCC(B) = 1.4 V
-15
-
-15
-
μA
VI = 1.07 V;
VCC(A) = VCC(B) = 1.65 V
-25
-
-25
-
μA
VI = 1.60 V; VCC(A) = VCC(B) = 2.3 V
-45
-
-45
-
μA
-100
-
-100
-
μA
125
-
125
-
μA
200
-
200
-
μA
300
-
300
-
μA
500
-
500
-
μA
VCC(A) = VCC(B) = 1.6 V
-125
-
-125
-
μA
VCC(A) = VCC(B) = 1.95 V
-200
-
-200
-
μA
VCC(A) = VCC(B) = 2.7 V
-300
-
-300
-
μA
-500
-
-500
-
μA
-
±5
-
±7.5
μA
VI = VIH or VIL
LOW-level
output voltage
IO = 100 μA;
VCC(A) = VCC(B) = 0.8 V to 3.6 V
input leakage
current
IBHL
bus hold LOW A or B port
current
VI = 0.49 V; VCC(A) = VCC(B) = 1.4 V
bus hold
HIGH current
DIR input; VI = 0 V or 3.6 V;
VCC(A) = VCC(B) = 0.8 V to 3.6 V
[3]
[4]
A or B port
VI = 2.00 V; VCC(A) = VCC(B) = 3.0 V
IBHLO
bus hold LOW A or B port
overdrive
VCC(A) = VCC(B) = 1.6 V
current
VCC(A) = VCC(B) = 1.95 V
[5]
VCC(A) = VCC(B) = 2.7 V
VCC(A) = VCC(B) = 3.6 V
IBHHO
bus hold
HIGH
overdrive
current
[6]
A or B port
VCC(A) = VCC(B) = 3.6 V
IOZ
OFF-state
A or B port; VO = 0 V or VCCO;
output current VCC(A) = VCC(B) = 0.8 to 3.6 V
74AVCH2T45
Product data sheet
Unit
Min
II
IBHH
-40 °C to +125 °C
[7]
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Rev. 7 — 20 February 2018
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74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
Symbol
IOFF
ICC
Parameter
power-off
leakage
current
Conditions
-40 °C to +85 °C
-40 °C to +125 °C
Unit
Min
Max
Min
Max
A port; VI or VO = 0 V to 3.6 V;
VCC(A) = 0 V; VCC(B) = 0.8 V to 3.6 V
-
±5
-
±35
μA
B port; VI or VO = 0 V to 3.6 V;
VCC(B) = 0 V; VCC(A) = 0.8 V to 3.6 V
-
±5
-
±35
μA
VCC(A) = 0.8 V to 3.6 V;
VCC(B) = 0.8 V to 3.6 V
-
8
-
11.5
μA
VCC(A) = 3.6 V; VCC(B) = 0 V
-
8
-
11.5
μA
VCC(A) = 0 V; VCC(B) = 3.6 V
-2
-
-8
-
μA
VCC(A) = 0.8 V to 3.6 V;
VCC(B) = 0.8 V to 3.6 V
-
8
-
11.5
μA
VCC(A) = 3.6 V; VCC(B) = 0 V
-2
-
-8
-
μA
VCC(A) = 0 V; VCC(B) = 3.6 V
-
8
-
11.5
μA
-
16
-
23
μA
supply current A port; VI = 0 V or VCCI; IO = 0 A
B port; VI = 0 V or VCCI; IO = 0 A
A plus B port (ICC(A) + ICC(B));
IO = 0 A; VI = 0 V or VCCI;
VCC(A) = 0.8 V to 3.6 V;
VCC(B) = 0.8 V to 3.6 V
[1] VCCO is the supply voltage associated with the output port.
[2] VCCI is the supply voltage associated with the data input port.
[3] The bus hold circuit can sink at least the minimum low sustaining current at VIL max.
IBHL should be measured after lowering VI to GND and then raising it to VIL max.
[4] The bus hold circuit can source at least the minimum high sustaining current at VIH min.
IBHH should be measured after raising VI to VCC and then lowering it to VIH min.
[5] An external driver must source at least IBHLO to switch this node from LOW to HIGH.
[6] An external driver must sink at least IBHHO to switch this node from HIGH to LOW.
[7] For I/O ports, the parameter IOZ includes the input leakage current.
11 Dynamic characteristics
[1] [2]
Table 9. Typical dynamic characteristics at VCC(A) = 0.8 V and Tamb = 25 °C
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7; for wave forms see Figure 5 and Figure 6
Symbol
tpd
tdis
ten
Parameter
propagation delay
disable time
enable time
Conditions
VCC(B)
Unit
0.8 V
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
A to B
15.8
8.4
8.0
8.0
8.7
9.5
ns
B to A
15.8
12.7
12.4
12.2
12.0
11.8
ns
DIR to A
12.2
12.2
12.2
12.2
12.2
12.2
ns
DIR to B
11.7
7.9
7.6
8.2
8.7
10.2
ns
DIR to A
27.5
20.6
20.0
20.4
20.7
22.0
ns
DIR to B
28.0
20.6
20.2
20.2
20.9
21.7
ns
[1] tpd is the same as tPLH and tPHL; tdis is the same as tPLZ and tPHZ; ten is the same as tPZL and tPZH.
[2] ten is a calculated value using the formula shown in Section 12.4
74AVCH2T45
Product data sheet
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Rev. 7 — 20 February 2018
© Nexperia B.V. 2018. All rights reserved.
9 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
Table 10. Typical dynamic characteristics at VCC(B) = 0.8 V and Tamb = 25 °C
[1] [2]
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7; for wave forms see Figure 5 and Figure 6
Symbol
tpd
tdis
ten
Parameter
propagation delay
disable time
enable time
Conditions
VCC(A)
Unit
0.8 V
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
A to B
15.8
12.7
12.4
12.2
12.0
11.8
ns
B to A
15.8
8.4
8.0
8.0
8.7
9.5
ns
DIR to A
12.2
4.9
3.8
3.7
2.8
3.4
ns
DIR to B
11.7
9.2
9.0
8.8
8.7
8.6
ns
DIR to A
27.5
17.6
17.0
16.8
17.4
18.1
ns
DIR to B
28.0
17.6
16.2
15.9
14.8
15.2
ns
[1] tpd is the same as tPLH and tPHL; tdis is the same as tPLZ and tPHZ; ten is the same as tPZL and tPZH.
[2] ten is a calculated value using the formula shown in Section 12.4
Table 11. Typical power dissipation capacitance at VCC(A) = VCC(B) and Tamb = 25 °C
Voltages are referenced to GND (ground = 0 V).
Symbol
CPD
Parameter
Conditions
[1] [2]
VCC(A) and VCC(B)
Unit
0.8 V
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
power dissipation A port: (direction A to B);
B port: (direction B to A)
capacitance
1
2
2
2
2
2
pF
A port: (direction B to A);
B port: (direction A to B)
9
11
11
12
14
17
pF
[1] CPD is used to determine the dynamic power dissipation (PD in μW).
2
2
PD = CPD × VCC × fi × N + Σ(CL × VCC × fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = load capacitance in pF;
VCC = supply voltage in V;
N = number of inputs switching;
2
Σ(CL × VCC × fo) = sum of the outputs.
[2] fi = 10 MHz; VI = GND to VCC; tr = tf = 1 ns; CL = 0 pF; RL = ∞ Ω.
74AVCH2T45
Product data sheet
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10 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
Table 12. Dynamic characteristics for temperature range -40 °C to +85 °C
[1] [2]
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7; for wave forms see Figure 5 and Figure 6.
Symbol
Parameter
Conditions
VCC(B)
1.2 V ±0.1 V
1.5 V ±0.1 V
1.8 V ±0.15 V
Min
Max
Min
Max
Min
Unit
2.5 V ±0.2 V
3.3 V ±0.3 V
Max
Min
Max
Min
Max
VCC(A) = 1.1 V to 1.3 V
tpd
tdis
ten
propagation
delay
A to B
1.0
9.0
0.7
6.8
0.6
6.1
0.5
5.7
0.5
6.1
ns
B to A
1.0
9.0
0.8
8.0
0.7
7.7
0.6
7.2
0.5
7.1
ns
disable time
DIR to A
2.2
8.8
2.2
8.8
2.2
8.8
2.2
8.8
2.2
8.8
ns
DIR to B
2.2
8.4
1.8
6.7
2.0
6.9
1.7
6.2
2.4
7.2
ns
DIR to A
-
17.4
-
14.7
-
14.6
-
13.4
-
14.3
ns
DIR to B
-
17.8
-
15.6
-
14.9
-
14.5
-
14.9
ns
enable time
VCC(A) = 1.4 V to 1.6 V
tpd
tdis
ten
propagation
delay
A to B
1.0
8.0
0.7
5.4
0.6
4.6
0.5
3.7
0.5
3.5
ns
B to A
1.0
6.8
0.8
5.4
0.7
5.1
0.6
4.7
0.5
4.5
ns
disable time
DIR to A
1.6
6.3
1.6
6.3
1.6
6.3
1.6
6.3
1.6
6.3
ns
DIR to B
2.0
7.6
1.8
5.9
1.6
6.0
1.2
4.8
1.7
5.5
ns
DIR to A
-
14.4
-
11.3
-
11.1
-
9.5
-
10.0
ns
DIR to B
-
14.3
-
11.7
-
10.9
-
10.0
-
9.8
ns
enable time
VCC(A) = 1.65 V to 1.95 V
tpd
tdis
ten
propagation
delay
A to B
1.0
7.7
0.6
5.1
0.5
4.3
0.5
3.4
0.5
3.1
ns
B to A
1.0
6.1
0.7
4.6
0.5
4.4
0.5
3.9
0.5
3.7
ns
disable time
DIR to A
1.6
5.5
1.6
5.5
1.6
5.5
1.6
5.5
1.6
5.5
ns
DIR to B
1.8
7.8
1.8
5.7
1.4
5.8
1.0
4.5
1.5
5.2
ns
DIR to A
-
13.9
-
10.3
-
10.2
-
8.4
-
8.9
ns
DIR to B
-
13.2
-
10.6
-
9.8
-
8.9
-
8.6
ns
enable time
VCC(A) = 2.3 V to 2.7 V
tpd
tdis
ten
propagation
delay
A to B
1.0
7.2
0.5
4.7
0.5
3.9
0.5
3.0
0.5
2.6
ns
B to A
1.0
5.7
0.6
3.8
0.5
3.4
0.5
3.0
0.5
2.8
ns
disable time
DIR to A
1.5
4.2
1.5
4.2
1.5
4.2
1.5
4.2
1.5
4.2
ns
DIR to B
1.7
7.3
2.0
5.2
1.5
5.1
0.6
4.2
1.1
4.8
ns
DIR to A
-
13.0
-
9.0
-
8.5
-
7.2
-
7.6
ns
DIR to B
-
11.4
-
8.9
-
8.1
-
7.2
-
6.8
ns
enable time
74AVCH2T45
Product data sheet
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Rev. 7 — 20 February 2018
© Nexperia B.V. 2018. All rights reserved.
11 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
Symbol
Parameter
Conditions
VCC(B)
1.2 V ±0.1 V
1.5 V ±0.1 V
1.8 V ±0.15 V
Min
Max
Min
Max
Min
Unit
2.5 V ±0.2 V
3.3 V ±0.3 V
Max
Min
Max
Min
Max
VCC(A) = 3.0 V to 3.6 V
tpd
tdis
ten
propagation
delay
A to B
1.0
7.1
0.5
4.5
0.5
3.7
0.5
2.8
0.5
2.4
ns
B to A
1.0
6.1
0.6
3.6
0.5
3.1
0.5
2.6
0.5
2.4
ns
disable time
DIR to A
1.5
4.7
1.5
4.7
1.5
4.7
1.5
4.7
1.5
4.7
ns
DIR to B
1.7
7.2
0.7
5.5
0.6
5.5
0.7
4.1
1.7
4.7
ns
DIR to A
-
13.3
-
9.1
-
8.6
-
6.7
-
7.1
ns
DIR to B
-
11.8
-
9.2
-
8.4
-
7.5
-
7.1
ns
enable time
[1] tpd is the same as tPLH and tPHL; tdis is the same as tPLZ and tPHZ; ten is the same as tPZL and tPZH.
[2] ten is a calculated value using the formula shown in Section 12.4
[1] [2]
Table 13. Dynamic characteristics for temperature range -40 °C to +125 °C
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7; for wave forms see Figure 5 and Figure 6
Symbol
Parameter
Conditions
VCC(B)
1.2 V ±0.1 V
1.5 V ±0.1 V
1.8 V ±0.15 V
Min
Max
Min
Max
Min
Unit
2.5 V ±0.2 V
3.3 V ±0.3 V
Max
Min
Max
Min
Max
VCC(A) = 1.1 V to 1.3 V
tpd
tdis
ten
propagation
delay
A to B
1.0
9.9
0.7
7.5
0.6
6.8
0.5
6.3
0.5
6.8
ns
B to A
1.0
9.9
0.8
8.8
0.7
8.5
0.6
8.0
0.5
7.9
ns
disable time
DIR to A
2.2
9.7
2.2
9.7
2.2
9.7
2.2
9.7
2.2
9.7
ns
DIR to B
2.2
9.2
1.8
7.4
2.0
7.6
1.7
6.9
2.4
8.0
ns
DIR to A
-
19.1
-
16.2
-
16.1
-
14.9
-
15.9
ns
DIR to B
-
19.6
-
17.2
-
16.5
-
16.0
-
16.5
ns
enable time
VCC(A) = 1.4 V to 1.6 V
tpd
tdis
ten
propagation
delay
A to B
1.0
8.8
0.7
6.0
0.6
5.1
0.5
4.1
0.5
3.9
ns
B to A
1.0
7.5
0.8
6.0
0.7
5.7
0.6
5.2
0.5
5.0
ns
disable time
DIR to A
1.6
7.0
1.6
7.0
1.6
7.0
1.6
7.0
1.6
7.0
ns
DIR to B
2.0
8.3
1.8
6.5
1.6
6.6
1.2
5.3
1.7
6.1
ns
DIR to A
-
15.8
-
12.5
-
12.3
-
10.5
-
11.1
ns
DIR to B
-
15.8
-
13.0
-
12.7
-
11.1
-
10.9
ns
enable time
VCC(A) = 1.65 V to 1.95 V
tpd
tdis
ten
propagation
delay
A to B
1.0
8.5
0.6
5.7
0.5
4.8
0.5
3.8
0.5
3.5
ns
B to A
1.0
6.8
0.7
5.1
0.5
4.9
0.5
4.3
0.5
4.1
ns
disable time
DIR to A
1.6
6.1
1.6
6.1
1.6
6.1
1.6
6.1
1.6
6.1
ns
DIR to B
1.8
8.6
1.8
6.3
1.4
6.4
1.0
5.0
1.5
5.8
ns
DIR to A
-
15.4
-
11.4
-
11.3
-
9.3
-
9.9
ns
DIR to B
-
14.6
-
11.8
-
10.9
-
9.9
-
9.6
ns
enable time
74AVCH2T45
Product data sheet
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Rev. 7 — 20 February 2018
© Nexperia B.V. 2018. All rights reserved.
12 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
Symbol
Parameter
Conditions
VCC(B)
1.2 V ±0.1 V
1.5 V ±0.1 V
1.8 V ±0.15 V
Min
Max
Min
Max
Min
Unit
2.5 V ±0.2 V
3.3 V ±0.3 V
Max
Min
Max
Min
Max
VCC(A) = 2.3 V to 2.7 V
tpd
tdis
ten
propagation
delay
A to B
1.0
8.0
0.5
5.2
0.5
4.3
0.5
3.3
0.5
2.9
ns
B to A
1.0
6.3
0.6
4.2
0.5
3.8
0.5
3.3
0.5
3.1
ns
disable time
DIR to A
1.5
4.7
1.5
4.7
1.5
4.7
1.5
4.7
1.5
4.7
ns
DIR to B
1.7
8.0
2.0
5.8
1.5
5.7
0.6
4.7
1.1
5.3
ns
DIR to A
-
14.3
-
10.0
-
9.5
-
8.0
-
8.4
ns
DIR to B
-
12.7
-
9.9
-
9.0
-
8.0
-
7.6
ns
enable time
VCC(A) = 3.0 V to 3.6 V
tpd
tdis
ten
propagation
delay
A to B
1.0
7.9
0.5
5.0
0.5
4.1
0.5
3.1
0.5
2.7
ns
B to A
1.0
6.8
0.6
4.0
0.5
3.5
0.5
2.9
0.5
2.7
ns
disable time
DIR to A
1.5
5.2
1.5
5.2
1.5
5.2
1.5
5.2
1.5
5.2
ns
DIR to B
1.7
7.9
0.7
6.1
0.6
6.1
0.7
4.6
1.7
5.2
ns
DIR to A
-
14.7
-
10.1
-
9.6
-
7.5
-
7.9
ns
DIR to B
-
13.1
-
10.2
-
9.3
-
8.3
-
7.9
ns
enable time
[1] tpd is the same as tPLH and tPHL; tdis is the same as tPLZ and tPHZ; ten is the same as tPZL and tPZH.
[2] ten is a calculated value using the formula shown in Section 12.4
74AVCH2T45
Product data sheet
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© Nexperia B.V. 2018. All rights reserved.
13 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
11.1 Waveforms and test circuit
VI
VM
nA, nB input
GND
tPHL
tPLH
VOH
nB, nA output
VM
001aak114
VOL
Measurement points are given in Table 14.
VOL and VOH are typical output voltage levels that occur with the output load.
Figure 5. The data input (nA, nB) to output (nB, nA) propagation delay times
VI
DIR input
VM
GND
t PLZ
output
LOW-to-OFF
OFF-to-LOW
t PZL
VCCO
VM
VX
VOL
t PHZ
output
HIGH-to-OFF
OFF-to-HIGH
t PZH
VOH
VY
VM
GND
outputs
enabled
outputs
disabled
outputs
enabled
001aae968
Measurement points are given in Table 14.
VOL and VOH are typical output voltage levels that occur with the output load.
Figure 6. 3-state enable and disable times
Table 14. Measurement points
[1]
[2]
Supply voltage
Input
Output
VCC(A), VCC(B)
VM
VM
VX
VY
1.1 V to 1.6 V
0.5VCCI
0.5VCCO
VOL + 0.1 V
VOH - 0.1 V
1.65 V to 2.7 V
0.5VCCI
0.5VCCO
VOL + 0.15 V
VOH - 0.15 V
3.0 V to 3.6 V
0.5VCCI
0.5VCCO
VOL + 0.3 V
VOH - 0.3 V
[1] VCCI is the supply voltage associated with the data input port.
[2] VCCO is the supply voltage associated with the output port.
74AVCH2T45
Product data sheet
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74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
tW
VI
90 %
negative
pulse
VM
VM
10 %
0V
VI
tf
tr
tr
tf
90 %
positive
pulse
VM
VM
10 %
0V
tW
VEXT
VCC
G
VI
RL
VO
DUT
RT
CL
RL
001aae331
Test data is given in Table 15.
RL = Load resistance.
CL = Load capacitance including jig and probe capacitance.
RT = Termination resistance.
VEXT = External voltage for measuring switching times.
Figure 7. Test circuit for measuring switching times
Table 15. Test data
Supply voltage
Input
[1]
VCC(A), VCC(B)
VI
1.1 V to 1.6 V
VCCI
1.65 V to 2.7 V
3.0 V to 3.6 V
Load
Δt/ΔV
[2]
VEXT
CL
RL
tPLH, tPHL
tPZH, tPHZ
tPZL, tPLZ
≤ 1.0 ns/V
15 pF
2 kΩ
open
GND
2VCCO
VCCI
≤ 1.0 ns/V
15 pF
2 kΩ
open
GND
2VCCO
VCCI
≤ 1.0 ns/V
15 pF
2 kΩ
open
GND
2VCCO
[3]
[1] VCCI is the supply voltage associated with the data input port.
[2] dV/dt ≥ 1.0 V/ns
[3] VCCO is the supply voltage associated with the output port.
74AVCH2T45
Product data sheet
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74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
12 Application information
12.1 Unidirectional logic level-shifting application
The circuit given in Figure 8 is an example of the 74AVCH2T45 being used in an
unidirectional logic level-shifting application.
VCC1
VCC(A)
VCC1
1A
2A
GND
VCC1
VCC2
74AVCH2T45
1
8
2
7
3
6
4
5
system-1
VCC(B)
VCC2
1B
2B
DIR
VCC2
system-2
001aag585
Figure 8. Unidirectional logic level-shifting application
Table 16. Unidirectional logic level-shifting application
74AVCH2T45
Product data sheet
Pin
Name
Function
Description
1
VCC(A)
VCC1
supply voltage of system-1 (0.8 V to 3.6 V)
2
1A
OUT1
output level depends on VCC1 voltage
3
2A
OUT2
output level depends on VCC1 voltage
4
GND
GND
device GND
5
DIR
DIR
the GND (LOW level) determines B port to A port direction
6
2B
IN2
input threshold value depends on VCC2 voltage
7
1B
IN1
input threshold value depends on VCC2 voltage
8
VCC(B)
VCC2
supply voltage of system-2 (0.8 V to 3.6 V)
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74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
12.2 Bidirectional logic level-shifting application
Figure 9 shows the 74AVCH2T45 being used in a bidirectional logic level-shifting
application. Since the device does not have an output enable (OE) pin, the system
designer should take precautions to avoid bus contention between system-1 and
system-2 when changing directions.
VCC1
VCC1
VCC2
VCC2
74AVCH2T45
VCC(A)
I/O-1
1A
2A
GND
1
8
2
7
3
6
4
5
VCC(B)
I/O-2
1B
2B
DIR
DIR CTRL
system-1
system-2
001aag586
Figure 9. Bidirectional logic level-shifting application
Table 17 gives a sequence that will illustrate data transmission from system-1 to
system-2 and then from system-2 to system-1.
Table 17. Bidirectional logic level-shifting application
[1]
State
DIR CTRL
I/O-1
I/O-2
Description
1
H
output
input
system-1 data to system-2
2
H
Z
Z
system-2 is getting ready to send data to system-1.
I/O-1 and I/O-2 are disabled.
The bus-line state depends on bus hold.
3
L
Z
Z
DIR bit is set LOW. I/O-1 and I/O-2 still are disabled.
The bus-line state depends on bus hold.
4
L
input
output
system-2 data to system-1
[1] H = HIGH voltage level;
L = LOW voltage level;
Z = high-impedance OFF-state.
74AVCH2T45
Product data sheet
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© Nexperia B.V. 2018. All rights reserved.
17 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
12.3 Power-up considerations
The device is designed such that no special power-up sequence is required other than
GND being applied first.
Table 18. Typicaltotal supply current (ICC(A) + ICC(B))
VCC(A)
VCC(B)
Unit
0V
0.8 V
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
0V
0
0.1
0.1
0.1
0.1
0.1
0.1
μA
0.8 V
0.1
0.1
0.1
0.1
0.1
0.7
2.3
μA
1.2 V
0.1
0.1
0.1
0.1
0.1
0.3
1.4
μA
1.5 V
0.1
0.1
0.1
0.1
0.1
0.1
0.9
μA
1.8 V
0.1
0.1
0.1
0.1
0.1
0.1
0.5
μA
2.5 V
0.1
0.7
0.3
0.1
0.1
0.1
0.1
μA
3.3 V
0.1
2.3
1.4
0.9
0.5
0.1
0.1
μA
12.4 Enable times
The enable times for the 74AVCH2T45 are calculated from the following formulas:
• ten (DIR to nA) = tdis (DIR to nB) + tpd (nB to nA)
• ten (DIR to nB) = tdis (DIR to nA) + tpd (nA to nB)
In a bidirectional application, these enable times provide the maximum delay from the
time the DIR bit is switched until an output is expected. For example, if the 74AVCH2T45
initially is transmitting from A to B, then the DIR bit is switched, the B port of the device
must be disabled before presenting it with an input. After the B port has been disabled,
an input signal applied to it appears on the corresponding A port after the specified
propagation delay.
74AVCH2T45
Product data sheet
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18 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
13 Package outline
VSSOP8: plastic very thin shrink small outline package; 8 leads; body width 2.3 mm
D
SOT765-1
E
A
X
c
y
HE
v
A
Z
5
8
Q
A
A2
A1
pin 1 index
(A3)
θ
Lp
1
detail X
4
e
L
w
bp
0
5 mm
scale
Dimensions (mm are the original dimensions)
Unit
mm
A
max.
max
nom
min
1
A1
A2
0.15 0.85
0.00 0.60
A3
0.12
D(1)
E(2)
0.27 0.23
2.1
2.4
0.17 0.08
1.9
2.2
bp
c
e
HE
0.5
3.2
3.0
L
0.4
Lp
Q
0.40 0.21
0.15 0.19
v
w
y
0.2
0.08
0.1
Z(1)
θ
0.4
8°
0.1
0°
Note
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
2. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
Outline
version
SOT765-1
References
IEC
JEDEC
JEITA
sot765-1_po
European
projection
Issue date
07-06-02
16-05-31
MO-187
Figure 10. Package outline SOT765-1 (VSSOP8)
74AVCH2T45
Product data sheet
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Rev. 7 — 20 February 2018
© Nexperia B.V. 2018. All rights reserved.
19 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
XSON8: plastic extremely thin small outline package; no leads; 8 terminals; body 1 x 1.95 x 0.5 mm
1
2
SOT833-1
b
4
3
4×
(2)
L
L1
e
8
7
6
e1
5
e1
e1
8×
A
(2)
A1
D
E
terminal 1
index area
0
1
2 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A(1)
max
A1
max
b
D
E
e
e1
L
L1
mm
0.5
0.04
0.25
0.17
2.0
1.9
1.05
0.95
0.6
0.5
0.35
0.27
0.40
0.32
Notes
1. Including plating thickness.
2. Can be visible in some manufacturing processes.
REFERENCES
OUTLINE
VERSION
IEC
JEDEC
JEITA
SOT833-1
---
MO-252
---
EUROPEAN
PROJECTION
ISSUE DATE
07-11-14
07-12-07
Figure 11. Package outline SOT883-1 (XSON8)
74AVCH2T45
Product data sheet
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Rev. 7 — 20 February 2018
© Nexperia B.V. 2018. All rights reserved.
20 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
XSON8: extremely thin small outline package; no leads;
8 terminals; body 1.35 x 1 x 0.5 mm
SOT1089
E
terminal 1
index area
D
A
A1
detail X
(4×)(2)
e
L
(8×)(2)
b 4
5
e1
1
terminal 1
index area
8
L1
X
0
0.5
scale
Dimensions
Unit
mm
max
nom
min
1 mm
A(1)
0.5
A1
b
D
E
e
e1
L
L1
0.04 0.20 1.40 1.05
0.35 0.40
0.15 1.35 1.00 0.55 0.35 0.30 0.35
0.12 1.30 0.95
0.27 0.32
Note
1. Including plating thickness.
2. Visible depending upon used manufacturing technology.
Outline
version
SOT1089
sot1089_po
References
IEC
JEDEC
JEITA
European
projection
Issue date
10-04-09
10-04-12
MO-252
Figure 12. Package outline SOT1089 (XSON8)
74AVCH2T45
Product data sheet
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Rev. 7 — 20 February 2018
© Nexperia B.V. 2018. All rights reserved.
21 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
XSON8: extremely thin small outline package; no leads;
8 terminals; body 1.2 x 1.0 x 0.35 mm
1
2
SOT1116
b
4
3
(4×)(2)
L
L1
e
8
7
e1
6
e1
5
e1
(8×)(2)
A1
A
D
E
terminal 1
index area
0
0.5
Dimensions
Unit
mm
1 mm
scale
A(1)
A1
b
D
E
e
e1
max 0.35 0.04 0.20 1.25 1.05
nom
0.15 1.20 1.00 0.55
min
0.12 1.15 0.95
0.3
L
L1
0.35 0.40
0.30 0.35
0.27 0.32
Note
1. Including plating thickness.
2. Visible depending upon used manufacturing technology.
Outline
version
sot1116_po
References
IEC
JEDEC
JEITA
European
projection
Issue date
10-04-02
10-04-07
SOT1116
Figure 13. Package outline SOT1116 (XSON8)
74AVCH2T45
Product data sheet
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Rev. 7 — 20 February 2018
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22 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
XSON8: extremely thin small outline package; no leads;
8 terminals; body 1.35 x 1.0 x 0.35 mm
SOT1203
b
1
2
3
(4×)(2)
4
L
L1
e
8
7
6
e1
e1
5
e1
(8×)(2)
A1
A
D
E
terminal 1
index area
0
0.5
Dimensions
Unit
mm
1 mm
scale
A(1)
A1
b
D
E
e
e1
L
L1
max 0.35 0.04 0.20 1.40 1.05
0.35 0.40
nom
0.15 1.35 1.00 0.55 0.35 0.30 0.35
min
0.12 1.30 0.95
0.27 0.32
Note
1. Including plating thickness.
2. Visible depending upon used manufacturing technology.
Outline
version
sot1203_po
References
IEC
JEDEC
JEITA
European
projection
Issue date
10-04-02
10-04-06
SOT1203
Figure 14. Package outline SOT1203 (XSON8)
74AVCH2T45
Product data sheet
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Rev. 7 — 20 February 2018
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23 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
14 Abbreviations
Table 19. Abbreviations
Acronym
Description
CDM
Charged Device Model
DUT
Device Under Test
ESD
ElectroStatic Discharge
HBM
Human Body Model
MM
Machine Model
15 Revision history
Table 20. Revision history
Document ID
Release date
Data sheet status
Change notice
Supersedes
74AVCH2T45 v.7
20180220
Product data sheet
-
74AVCH2T45 v.6
Modifications:
• The format of this data sheet has been redesigned to comply with the identity guidelines of
Nexperia.
• Legal texts have been adapted to the new company name where appropriate.
• Removed type number 74AVCH2T45GD (SOT996-2/XSON8)
74AVCH2T45 v.6
20130402
Modifications:
• For type number 74AVCH2T45GD XSON8U has changed to XSON8.
74AVCH2T45 v.5
20111214
Modifications:
• Legal pages updated.
74AVCH2T45 v.4
20101124
74AVCH2T45 v.3
Product data sheet
74AVCH2T45 v.5
-
74AVCH2T45 v.4
Product data sheet
-
74AVCH2T45 v.3
20090506
Product data sheet
-
74AVCH2T45 v.2
74AVCH2T45 v.2
20090203
Product data sheet
-
74AVCH2T45 v.1
74AVCH2T45 v.1
20070703
Product data sheet
-
-
74AVCH2T45
Product data sheet
Product data sheet
-
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 20 February 2018
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24 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
16 Legal information
16.1 Data sheet status
Document status
[1][2]
Product status
[3]
Definition
Objective [short] data sheet
Development
This document contains data from the objective specification for product
development.
Preliminary [short] data sheet
Qualification
This document contains data from the preliminary specification.
Product [short] data sheet
Production
This document contains the product specification.
[1]
[2]
[3]
Please consult the most recently issued document before initiating or completing a design.
The term 'short data sheet' is explained in section "Definitions".
The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple
devices. The latest product status information is available on the Internet at URL http://www.nexperia.com.
16.2 Definitions
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. Nexperia does not give any representations or
warranties as to the accuracy or completeness of information included herein
and shall have no liability for the consequences of use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is
intended for quick reference only and should not be relied upon to contain
detailed and full information. For detailed and full information see the
relevant full data sheet, which is available on request via the local Nexperia
sales office. In case of any inconsistency or conflict with the short data sheet,
the full data sheet shall prevail.
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
Nexperia and its customer, unless Nexperia and customer have explicitly
agreed otherwise in writing. In no event however, shall an agreement be
valid in which the Nexperia product is deemed to offer functions and qualities
beyond those described in the Product data sheet.
16.3 Disclaimers
Limited warranty and liability — Information in this document is believed
to be accurate and reliable. However, Nexperia does not give any
representations or warranties, expressed or implied, as to the accuracy
or completeness of such information and shall have no liability for the
consequences of use of such information. Nexperia takes no responsibility
for the content in this document if provided by an information source outside
of Nexperia. In no event shall Nexperia be liable for any indirect, incidental,
punitive, special or consequential damages (including - without limitation lost profits, lost savings, business interruption, costs related to the removal
or replacement of any products or rework charges) whether or not such
damages are based on tort (including negligence), warranty, breach of
contract or any other legal theory. Notwithstanding any damages that
customer might incur for any reason whatsoever, Nexperia's aggregate and
cumulative liability towards customer for the products described herein shall
be limited in accordance with the Terms and conditions of commercial sale of
Nexperia.
Right to make changes — Nexperia reserves the right to make changes
to information published in this document, including without limitation
specifications and product descriptions, at any time and without notice. This
document supersedes and replaces all information supplied prior to the
publication hereof.
Suitability for use — Nexperia products are not designed, authorized or
warranted to be suitable for use in life support, life-critical or safety-critical
74AVCH2T45
Product data sheet
systems or equipment, nor in applications where failure or malfunction
of an Nexperia product can reasonably be expected to result in personal
injury, death or severe property or environmental damage. Nexperia and its
suppliers accept no liability for inclusion and/or use of Nexperia products in
such equipment or applications and therefore such inclusion and/or use is at
the customer’s own risk.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. Nexperia makes no representation
or warranty that such applications will be suitable for the specified use
without further testing or modification. Customers are responsible for the
design and operation of their applications and products using Nexperia
products, and Nexperia accepts no liability for any assistance with
applications or customer product design. It is customer’s sole responsibility
to determine whether the Nexperia product is suitable and fit for the
customer’s applications and products planned, as well as for the planned
application and use of customer’s third party customer(s). Customers should
provide appropriate design and operating safeguards to minimize the risks
associated with their applications and products. Nexperia does not accept
any liability related to any default, damage, costs or problem which is based
on any weakness or default in the customer’s applications or products, or
the application or use by customer’s third party customer(s). Customer is
responsible for doing all necessary testing for the customer’s applications
and products using Nexperia products in order to avoid a default of the
applications and the products or of the application or use by customer’s third
party customer(s). Nexperia does not accept any liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those
given in the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
Terms and conditions of commercial sale — Nexperia products are
sold subject to the general terms and conditions of commercial sale, as
published at http://www.nexperia.com/profile/terms, unless otherwise agreed
in a valid written individual agreement. In case an individual agreement is
concluded only the terms and conditions of the respective agreement shall
apply. Nexperia hereby expressly objects to applying the customer’s general
terms and conditions with regard to the purchase of Nexperia products by
customer.
No offer to sell or license — Nothing in this document may be interpreted
or construed as an offer to sell products that is open for acceptance or
the grant, conveyance or implication of any license under any copyrights,
patents or other industrial or intellectual property rights.
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 20 February 2018
© Nexperia B.V. 2018. All rights reserved.
25 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
Non-automotive qualified products — Unless this data sheet expressly
states that this specific Nexperia product is automotive qualified, the
product is not suitable for automotive use. It is neither qualified nor tested in
accordance with automotive testing or application requirements. Nexperia
accepts no liability for inclusion and/or use of non-automotive qualified
products in automotive equipment or applications. In the event that customer
uses the product for design-in and use in automotive applications to
automotive specifications and standards, customer (a) shall use the product
without Nexperia's warranty of the product for such automotive applications,
use and specifications, and (b) whenever customer uses the product for
automotive applications beyond Nexperia's specifications such use shall be
solely at customer’s own risk, and (c) customer fully indemnifies Nexperia
for any liability, damages or failed product claims resulting from customer
74AVCH2T45
Product data sheet
design and use of the product for automotive applications beyond Nexperia's
standard warranty and Nexperia's product specifications.
Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
16.4 Trademarks
Notice: All referenced brands, product names, service names and
trademarks are the property of their respective owners.
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 20 February 2018
© Nexperia B.V. 2018. All rights reserved.
26 / 27
74AVCH2T45
Nexperia
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
Contents
1
2
3
4
5
6
6.1
6.2
7
8
9
10
11
11.1
12
12.1
12.2
12.3
12.4
13
14
15
16
General description ............................................ 1
Features and benefits .........................................1
Ordering information .......................................... 2
Marking .................................................................2
Functional diagram ............................................. 3
Pinning information ............................................ 3
Pinning ............................................................... 3
Pin description ................................................... 4
Functional description ........................................4
Limiting values .................................................... 5
Recommended operating conditions ................ 5
Static characteristics .......................................... 6
Dynamic characteristics .....................................9
Waveforms and test circuit .............................. 14
Application information .................................... 16
Unidirectional logic level-shifting application .... 16
Bidirectional logic level-shifting application ...... 17
Power-up considerations ................................. 18
Enable times ....................................................18
Package outline .................................................19
Abbreviations .................................................... 24
Revision history ................................................ 24
Legal information .............................................. 25
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section 'Legal information'.
© Nexperia B.V. 2018.
All rights reserved.
For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
Date of release: 20 February 2018
Document identifier: 74AVCH2T45