74AHC374; 74AHCT374
Octal D-type flip-flop; positive edge-trigger; 3-state
Rev. 03 — 12 June 2008
Product data sheet
1. General description
The 74AHC374; 74AHCT374 is a high-speed Si-gate CMOS device and is pin compatible
with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard
No. 7-A.
The 74AHC374; 74AHCT374 comprises eight D-type flip-flops featuring separate D-type
inputs for each flip-flop and 3-state outputs for bus oriented applications. A clock input
(CP) and an output enable input (OE) are common to all flip-flops.
The eight flip-flops will store the state of their individual D inputs that meet the set-up and
hold times requirements for the LOW-to-HIGH CP transition.
When OE is LOW the content of the eight flip-flops is available at the outputs. When OE is
HIGH, the outputs go to the high-impedance OFF-state. Operation of the OE input does
not affect the state of the flip-flops.
2. Features
n
n
n
n
n
Balanced propagation delays
All inputs have Schmitt-trigger actions
Inputs accept voltages higher than VCC
Common 3-state output enable input
Input levels:
u For 74AHC374: CMOS level
u For 74AHCT374: TTL level
n ESD protection:
u HBM EIA/JESD22-A114E exceeds 2000 V
u MM EIA/JESD22-A115-A exceeds 200 V
u CDM EIA/JESD22-C101C exceeds 1000 V
n Multiple package options
n Specified from −40 °C to +85 °C and from −40 °C to +125 °C
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
3. Ordering information
Table 1.
Ordering information
Type number
Package
Temperature range
Name
Description
Version
74AHC374D
−40 °C to +125 °C
SO20
plastic small outline package; 20 leads; body
width 7.5 mm
SOT163-1
74AHC374PW
−40 °C to +125 °C
TSSOP20
plastic thin shrink small outline package; 20 leads; SOT360-1
body width 4.4 mm
74AHCT374D
−40 °C to +125 °C
SO20
plastic small outline package; 20 leads; body
width 7.5 mm
74AHCT374PW
−40 °C to +125 °C
TSSOP20
plastic thin shrink small outline package; 20 leads; SOT360-1
body width 4.4 mm
74AHC374
74AHCT374
SOT163-1
4. Functional diagram
3
D0
Q0
2
4
D1
Q1
5
7
D2
Q2
6
8
D3
Q3
9
13
D4
14
D5
Q5 15
17
D6
Q6 16
18
D7
Q7 19
FF1
to
FF8
3-STATE
OUTPUTS
Q4 12
11 CP
1 OE
mna892
Fig 1.
Functional diagram
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74AHC_AHCT374_3
Product data sheet
Rev. 03 — 12 June 2008
Nexperia B.V. 2017. All rights reserved
2 of 17
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
1
EN
11
C1
11
3
CP
3
4
7
8
13
D0
Q0
D1
Q1
D2
Q2
D3
Q3
D4
14
Q4
D5
17
18
Q5
D6
Q6
D7
Q7
2
4
5
7
6
9
8
9
12
13
12
14
15
17
16
18
19
5
6
15
16
19
OE
1
Fig 2.
mna196
mna891
Logic symbol
D0
Fig 3.
D1
D
Q
D2
D
CP
Q
D3
D
CP
FF1
2
1D
Q
FF2
D4
D
CP
Q
D5
D
CP
FF3
IEC logic symbol
Q
D
CP
FF4
D6
Q
D
CP
FF5
D7
Q
D
CP
FF6
Q
CP
FF7
FF8
CP
OE
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
mna893
Fig 4.
Logic diagram
©
74AHC_AHCT374_3
Product data sheet
Rev. 03 — 12 June 2008
Nexperia B.V. 2017. All rights reserved
3 of 17
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
5. Pinning information
5.1 Pinning
OE
1
Q0
2
20 VCC
19 Q7
D0
3
18 D7
D1
4
17 D6
Q1
5
Q2
6
D2
7
14 D5
D3
8
13 D4
Q3
9
12 Q4
GND 10
11 CP
374
16 Q6
15 Q5
001aad040
Fig 5.
Pin configuration SO20 and TSSOP20
5.2 Pin description
Table 2.
Pin description
Symbol
Pin
Description
OE
1
3-state output enable input (active LOW)
Q0
2
3-state flip-flop output
D0
3
data input
D1
4
data input
Q1
5
3-state flip-flop output
Q2
6
3-state flip-flop output
D2
7
data input
D3
8
data input
Q3
9
3-state flip-flop output
GND
10
ground (0 V)
CP
11
clock input (LOW-to-HIGH, edge triggered)
Q4
12
3-state flip-flop output
D4
13
data input
D5
14
data input
Q5
15
3-state flip-flop output
Q6
16
3-state flip-flop output
D6
17
data input
D7
18
data input
Q7
19
3-state flip-flop output
VCC
20
supply voltage
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74AHC_AHCT374_3
Product data sheet
Rev. 03 — 12 June 2008
Nexperia B.V. 2017. All rights reserved
4 of 17
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
6. Functional description
Table 3.
Function table[1]
Operating mode
OE
CP
Dn
Internal
flip-flop
Load and read register
L
↑
l
L
L
L
↑
h
H
H
Load register and disable outputs
H
↑
l
L
Z
H
↑
h
H
Z
[1]
Control
Input
Output
Q0 to Q7
H = HIGH voltage level;
h = HIGH voltage level one setup time prior to the LOW-to-HIGH CP transition;
L = LOW voltage level;
l = LOW voltage level one setup time prior to the LOW-to-HIGH CP transition;
X = don’t care;
↑ = LOW-to-HIGH CP transition;
Z = high-impedance OFF-state.
7. Limiting values
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
VCC
VI
Conditions
Min
Max
Unit
supply voltage
−0.5
+7.0
V
input voltage
−0.5
+7.0
V
−20
-
mA
−20
+20
mA
input clamping current
VI < −0.5 V
[1]
IOK
output clamping current
VO < −0.5 V or VO > VCC + 0.5 V
[1]
VO = −0.5 V to (VCC + 0.5 V)
IIK
IO
output current
−25
+25
mA
ICC
supply current
-
+75
mA
IGND
ground current
−75
-
mA
Tstg
storage temperature
−65
+150
°C
-
500
mW
total power dissipation
Ptot
Tamb = −40 °C to +125 °C
[2]
[1]
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2]
For SO20 packages: above 70 °C the value of Ptot derates linearly at 8 mW/K.
For TSSOP20 packages: above 60 °C the value of Ptot derates linearly at 5.5 mW/K.
©
74AHC_AHCT374_3
Product data sheet
Rev. 03 — 12 June 2008
Nexperia B.V. 2017. All rights reserved
5 of 17
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
8. Recommended operating conditions
Table 5.
Operating conditions
Symbol Parameter
Conditions
Min
Typ
Max
Unit
2.0
5.0
5.5
V
74AHC374
VCC
supply voltage
VI
input voltage
0
-
5.5
V
VO
output voltage
0
-
VCC
V
Tamb
ambient temperature
−40
+25
+125
°C
∆t/∆V
input transition rise and fall rate
VCC = 3.0 V to 3.6 V
-
-
100
ns/V
VCC = 4.5 V to 5.5 V
-
-
20
ns/V
74AHCT374
VCC
supply voltage
4.5
5.0
5.5
V
VI
input voltage
0
-
5.5
V
VO
output voltage
0
-
VCC
V
Tamb
ambient temperature
−40
+25
+125
°C
∆t/∆V
input transition rise and fall rate
-
-
20
ns/V
VCC = 4.5 V to 5.5 V
9. Static characteristics
Table 6.
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
25 °C
Conditions
−40 °C to +85 °C −40 °C to +125 °C Unit
Min
Typ
Max
Min
Max
Min
Max
74AHC374
VIH
VIL
VOH
VOL
HIGH-level
input voltage
VCC = 2.0 V
1.5
-
-
1.5
-
1.5
-
V
VCC = 3.0 V
2.1
-
-
2.1
-
2.1
-
V
VCC = 5.5 V
3.85
-
-
3.85
-
3.85
-
V
LOW-level
input voltage
VCC = 2.0 V
-
-
0.5
-
0.5
-
0.5
V
VCC = 3.0 V
-
-
0.9
-
0.9
-
0.9
V
VCC = 5.5 V
-
-
1.65
-
1.65
-
1.65
V
HIGH-level
VI = VIH or VIL
output voltage
IO = −50 µA; VCC = 2.0 V
1.9
2.0
-
1.9
-
1.9
-
V
IO = −50 µA; VCC = 3.0 V
2.9
3.0
-
2.9
-
2.9
-
V
IO = −50 µA; VCC = 4.5 V
4.4
4.5
-
4.4
-
4.4
-
V
IO = −4.0 mA; VCC = 3.0 V
2.58
-
-
2.48
-
2.40
-
V
IO = −8.0 mA; VCC = 4.5 V
3.94
-
-
3.80
-
3.70
-
V
LOW-level
VI = VIH or VIL
output voltage
IO = 50 µA; VCC = 2.0 V
-
0
0.1
-
0.1
-
0.1
V
IO = 50 µA; VCC = 3.0 V
-
0
0.1
-
0.1
-
0.1
V
IO = 50 µA; VCC = 4.5 V
-
0
0.1
-
0.1
-
0.1
V
IO = 4.0 mA; VCC = 3.0 V
-
-
0.36
-
0.44
-
0.55
V
IO = 8.0 mA; VCC = 4.5 V
-
-
0.36
-
0.44
-
0.55
V
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74AHC_AHCT374_3
Product data sheet
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Nexperia B.V. 2017. All rights reserved
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74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
Table 6.
Static characteristics …continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
25 °C
Conditions
−40 °C to +85 °C −40 °C to +125 °C Unit
Min
Typ
Max
Min
Max
Min
Max
II
input leakage
current
VI = 5.5 V or GND;
VCC = 0 V to 5.5 V
-
-
0.1
-
1.0
-
2.0
µA
IOZ
OFF-state
output current
VI = VIH or VIL;
VO = VCC or GND;
VCC = 5.5 V
-
-
±0.25
-
±2.5
-
±10.0
µA
ICC
supply current VI = VCC or GND; IO = 0 A;
VCC = 5.5 V
-
-
4.0
-
40
-
80
µA
CI
input
capacitance
-
3
10
-
10
-
10
pF
CO
output
capacitance
-
4
-
-
-
-
-
pF
VI = VCC or GND
74AHCT374
VIH
HIGH-level
input voltage
VCC = 4.5 V to 5.5 V
2.0
-
-
2.0
-
2.0
-
V
VIL
LOW-level
input voltage
VCC = 4.5 V to 5.5 V
-
-
0.8
-
0.8
-
0.8
V
VOH
HIGH-level
VI = VIH or VIL; VCC = 4.5 V
output voltage
IO = −50 µA
IO = −8.0 mA
VOL
LOW-level
VI = VIH or VIL; VCC = 4.5 V
output voltage
IO = 50 µA
IO = 8.0 mA
4.4
4.5
-
4.4
-
4.4
-
V
3.94
-
-
3.80
-
3.70
-
V
-
0
0.1
-
0.1
-
0.1
V
-
-
0.36
-
0.44
-
0.55
V
II
input leakage
current
VI = 5.5 V or GND;
VCC = 0 V to 5.5 V
-
-
0.1
-
1.0
-
2.0
µA
IOZ
OFF-state
output current
VI = VIH or VIL;
VO = VCC or GND per input
pin; other inputs at
VCC or GND; IO = 0 A;
VCC = 5.5 V
-
-
±0.25
-
±2.5
-
±10.0
µA
ICC
supply current VI = VCC or GND; IO = 0 A;
VCC = 5.5 V
-
-
4.0
-
40
-
80
µA
∆ICC
additional
per input pin;
supply current VI = VCC − 2.1 V; other pins
at VCC or GND; IO = 0 A;
VCC = 4.5 V to 5.5 V
-
-
1.35
-
1.5
-
1.5
mA
CI
input
capacitance
-
3
10
-
10
-
10
pF
CO
output
capacitance
-
4
-
-
-
-
-
pF
VI = VCC or GND
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74AHC_AHCT374_3
Product data sheet
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Nexperia B.V. 2017. All rights reserved
7 of 17
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
10. Dynamic characteristics
Table 7.
Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 9.
Symbol Parameter
25 °C
Conditions
−40 °C to +85 °C −40 °C to +125 °C Unit
Min
Typ[1]
Max
Min
Max
Min
Max
CL = 15 pF
-
6.4
12.7
1.0
15.0
1.0
16.0
ns
CL = 50 pF
-
8.4
16.2
1.0
18.5
1.0
20.5
ns
-
4.4
8.1
1.0
9.5
1.0
10.0
ns
-
5.7
10.1
1.0
11.5
1.0
12.5
ns
CL = 15 pF
-
5.5
11.0
1.0
13.0
1.0
14.0
ns
CL = 50 pF
-
7.3
14.5
1.0
16.5
1.0
18.0
ns
-
3.9
7.6
1.0
9.0
1.0
9.5
ns
-
5.2
9.6
1.0
11.0
1.0
12.0
ns
CL = 15 pF
-
5.6
10.5
1.0
12.5
1.0
13.0
ns
CL = 50 pF
-
9.4
14.0
1.0
16.0
1.0
17.5
ns
CL = 15 pF
-
4.2
6.8
1.0
8.0
1.0
8.5
ns
CL = 50 pF
-
6.4
8.8
1.0
10.0
1.0
11.0
ns
CL = 15 pF
80
130
-
70
-
70
-
MHz
CL = 50 pF
55
85
-
50
-
50
-
MHz
CL = 15 pF
130
185
-
110
-
110
-
MHz
CL = 50 pF
85
120
-
75
-
75
-
MHz
VCC = 3.0 V to 3.6 V
5.0
-
-
5.5
-
5.5
-
ns
VCC = 4.5 V to 5.5 V
5.0
-
-
5.0
-
5.0
-
ns
VCC = 3.0 V to 3.6 V
4.5
-
-
4.0
-
4.0
-
ns
VCC = 4.5 V to 5.5 V
3.0
-
-
3.0
-
3.0
-
ns
74AHC374
tpd
propagation CP to Qn; see Figure 6 and
delay
Figure 8
[2]
VCC = 3.0 V to 3.6 V
VCC = 4.5 V to 5.5 V
CL = 15 pF
CL = 50 pF
ten
enable time OE to Qn; see Figure 7
[3]
VCC = 3.0 V to 3.6 V
VCC = 4.5 V to 5.5 V
CL = 15 pF
CL = 50 pF
tdis
disable time OE to Qn; see Figure 7
[4]
VCC = 3.0 V to 3.6 V
VCC = 4.5 V to 5.5 V
fmax
maximum
frequency
see Figure 6
VCC = 3.0 V to 3.6 V
VCC = 4.5 V to 5.5 V
tW
tsu
pulse width
set-up time
CP HIGH or LOW;
see Figure 6
Dn to CP; see Figure 8
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74AHC_AHCT374_3
Product data sheet
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8 of 17
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
Table 7.
Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 9.
Symbol Parameter
th
CPD
hold time
25 °C
Conditions
−40 °C to +85 °C −40 °C to +125 °C Unit
Min
Typ[1]
Max
Min
Max
Min
Max
VCC = 3.0 V to 3.6 V
2.0
-
-
2.0
-
2.0
-
ns
VCC = 4.5 V to 5.5 V
2.0
-
-
2.0
-
2.0
-
ns
-
10
-
-
-
-
-
pF
CL = 15 pF
-
4.3
9.4
1.0
10.5
1.0
12.0
ns
CL = 50 pF
-
5.6
10.4
1.0
11.5
1.0
13.0
ns
-
3.5
10.2
1.0
11.5
1.0
13.0
ns
-
4.8
11.2
1.0
12.5
1.0
14.0
ns
CL = 15 pF
-
3.6
10.2
1.0
11.0
1.0
13.0
ns
CL = 50 pF
-
5.7
11.2
1.0
12.0
1.0
14.0
ns
CL = 15 pF
90
140
-
80
-
80
-
MHz
CL = 50 pF
85
130
-
75
-
75
-
MHz
Dn to CP; see Figure 8
fi = 1 MHz; VI = GND to VCC
power
dissipation
capacitance
[5]
74AHCT374; VCC = 4.5 V to 5.5 V
tpd
ten
propagation CP to Qn; see Figure 6 and
delay
Figure 8
[2]
[3]
enable time OE to Qn; see Figure 7
CL = 15 pF
CL = 50 pF
tdis
fmax
[4]
disable time OE to Qn; see Figure 7
maximum
frequency
see Figure 6
tW
pulse width
CP HIGH or LOW;
see Figure 6
6.5
-
-
6.5
-
6.5
-
ns
tsu
set-up time
Dn to CP; see Figure 8
2.5
-
-
2.5
-
2.5
-
ns
th
hold time
Dn to CP; see Figure 8
2.5
-
-
2.5
-
2.5
-
ns
-
12
-
-
-
-
-
pF
CPD
power
fi = 1 MHz; VI = GND to VCC
dissipation
capacitance
[5]
[1]
Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC = 5.0 V).
[2]
tpd is the same as tPLH and tPHL.
[3]
ten is the same as tPZH and tPZL.
[4]
tdis is the same as tPHZ and tPLZ.
[5]
CPD is used to determine the dynamic power dissipation (PD in µW).
PD = CPD × VCC2 × fi × N + Σ(CL × VCC2 × fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in V;
N = number of inputs switching;
Σ(CL × VCC2 × fo) = sum of the outputs.
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74AHC_AHCT374_3
Product data sheet
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Nexperia B.V. 2017. All rights reserved
9 of 17
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
10.1 Waveforms
1/fmax
VI
CP input
VM
GND
tW
t PHL
t PLH
VOH
VM
Qn output
001aac426
VOL
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 6.
Clock pulse width, maximum frequency and input to output propagation delays
VI
OE input
VM
GND
t PLZ
t PZL
VCC
Qn output
LOW-to-OFF
OFF-to-LOW
VM
VX
VOL
t PZH
t PHZ
VOH
VY
Qn output
HIGH-to-OFF
OFF-to-HIGH
VM
GND
outputs
enabled
outputs
disabled
outputs
enabled
mna813
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 7.
Enable and disable times
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74AHC_AHCT374_3
Product data sheet
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Nexperia B.V. 2017. All rights reserved
10 of 17
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
VI
VM
CP input
GND
tsu
tsu
th
th
VI
VM
Dn input
GND
VOH
VM
Qn output
VOL
mna202
Measurement points are given in Table 8.
The shaded areas indicate when the input is permitted to change for predictable output performance.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 8.
Data set-up and hold times
Table 8.
Measurement points
Type
Input
Output
VM
VM
VX
VY
74AHC374
0.5 × VCC
0.5 × VCC
VOL + 0.3 V
VOH − 0.3 V
74AHCT374
1.5 V
0.5 × VCC
VOL + 0.3 V
VOH − 0.3 V
©
74AHC_AHCT374_3
Product data sheet
Rev. 03 — 12 June 2008
Nexperia B.V. 2017. All rights reserved
11 of 17
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
VI
tW
90 %
negative
pulse
VM
0V
tf
tr
tr
tf
VI
90 %
positive
pulse
0V
VM
10 %
VM
VM
10 %
tW
VCC
VCC
G
VI
VO
RL
S1
open
DUT
CL
RT
001aad983
Test data is given in Table 9.
Definitions test circuit:
RT = termination resistance should be equal to output impedance Zo of the pulse generator.
CL = load capacitance including jig and probe capacitance.
RL = load resistance.
S1 = test selection switch.
Fig 9.
Test circuitry for measuring switching times
Table 9.
Test data
Type
Input
Load
S1 position
VI
tr, tf
CL
RL
tPHL, tPLH
tPZH, tPHZ
tPZL, tPLZ
74AHC374
VCC
≤ 3.0 ns
15 pF, 50 pF
1 kΩ
open
GND
VCC
74AHCT374
3.0 V
≤ 3.0 ns
15 pF, 50 pF
1 kΩ
open
GND
VCC
©
74AHC_AHCT374_3
Product data sheet
Rev. 03 — 12 June 2008
Nexperia B.V. 2017. All rights reserved
12 of 17
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
11. Package outline
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
D
E
A
X
c
HE
y
v M A
Z
20
11
Q
A2
A
(A 3)
A1
pin 1 index
θ
Lp
L
10
1
e
detail X
w M
bp
0
5
10 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (1)
e
HE
L
Lp
Q
v
w
y
mm
2.65
0.3
0.1
2.45
2.25
0.25
0.49
0.36
0.32
0.23
13.0
12.6
7.6
7.4
1.27
10.65
10.00
1.4
1.1
0.4
1.1
1.0
0.25
0.25
0.1
0.01
0.019 0.013
0.014 0.009
0.51
0.49
0.30
0.29
0.05
0.419
0.043
0.055
0.394
0.016
inches
0.1
0.012 0.096
0.004 0.089
0.043
0.039
0.01
0.01
Z
(1)
0.9
0.4
0.035
0.004
0.016
θ
8o
o
0
Note
1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.
REFERENCES
OUTLINE
VERSION
IEC
JEDEC
SOT163-1
075E04
MS-013
JEITA
EUROPEAN
PROJECTION
ISSUE DATE
99-12-27
03-02-19
Fig 10. Package outline SOT163-1 (SO20)
©
74AHC_AHCT374_3
Product data sheet
Rev. 03 — 12 June 2008
Nexperia B.V. 2017. All rights reserved
13 of 17
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm
SOT360-1
E
D
A
X
c
HE
y
v M A
Z
11
20
Q
A2
(A 3)
A1
pin 1 index
A
θ
Lp
L
1
10
e
detail X
w M
bp
0
2.5
5 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (2)
e
HE
L
Lp
Q
v
w
y
Z (1)
θ
mm
1.1
0.15
0.05
0.95
0.80
0.25
0.30
0.19
0.2
0.1
6.6
6.4
4.5
4.3
0.65
6.6
6.2
1
0.75
0.50
0.4
0.3
0.2
0.13
0.1
0.5
0.2
8o
o
0
Notes
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
SOT360-1
REFERENCES
IEC
JEDEC
JEITA
EUROPEAN
PROJECTION
ISSUE DATE
99-12-27
03-02-19
MO-153
Fig 11. Package outline SOT360-1 (TSSOP20)
©
74AHC_AHCT374_3
Product data sheet
Rev. 03 — 12 June 2008
Nexperia B.V. 2017. All rights reserved
14 of 17
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
12. Abbreviations
Table 10.
Abbreviations
Acronym
Description
CDM
Charged Device Model
CMOS
Complementary Metal-Oxide Semiconductor
DUT
Device Under Test
ESD
ElectroStatic Discharge
HBM
Human Body Model
LSTTL
Low-power Schottky Transistor-Transistor Logic
MM
Machine Model
13. Revision history
Table 11.
Revision history
Document ID
Release date
Data sheet status
Change notice
Supersedes
74AHC_AHCT374_3
20080612
Product data sheet
-
74AHC_AHCT374_2
Modifications:
•
The format of this data sheet has been redesigned to comply with the new identity
guidelines of NXP Semiconductors.
•
•
Legal texts have been adapted to the new company name where appropriate.
Table 6: the conditions for input leakage current have been changed.
74AHC_AHCT374_2
19990928
Product specification
-
74AHC_AHCT374_1
74AHC_AHCT374_1
19981211
Product specification
-
-
©
74AHC_AHCT374_3
Product data sheet
Rev. 03 — 12 June 2008
Nexperia B.V. 2017. All rights reserved
15 of 17
74AHC374; 74AHCT374
Nexperia
Octal D-type flip-flop; positive edge-trigger; 3-state
14. Legal information
14.1 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]
Please consult the most recently issued document before initiating or completing a design.
[2]
The term ‘short data sheet’ is explained in section “Definitions”.
[3]
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.
14.2 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.
14.3 Disclaimers
General — 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.
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 medical, military, aircraft,
space or life support equipment, nor in applications where failure or
malfunction of a Nexperia product can reasonably be expected
to result in personal injury, death or severe property or environmental
damage. Nexperia accepts 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.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) may cause permanent
damage to the device. Limiting values are stress ratings only and operation of
the device at these or any other conditions above those given in the
Characteristics sections of this document is not implied. Exposure to limiting
values for extended periods may affect device reliability.
Terms and conditions of sale — Nexperia products are sold
subject to the general terms and conditions of commercial sale, as published
at http://www.nexperia.com/profile/terms, including those pertaining to warranty,
intellectual property rights infringement and limitation of liability, unless
explicitly otherwise agreed to in writing by Nexperia. In case of
any inconsistency or conflict between information in this document and such
terms and conditions, the latter will prevail.
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.
14.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
15. Contact information
For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
©
74AHC_AHCT374_3
Product data sheet
Rev. 03 — 12 June 2008
Nexperia B.V. 2017. All rights reserved
16 of 17
Nexperia
74AHC374; 74AHCT374
Octal D-type flip-flop; positive edge-trigger; 3-state
16. Contents
1
2
3
4
5
5.1
5.2
6
7
8
9
10
10.1
11
12
13
14
14.1
14.2
14.3
14.4
15
16
©
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
Functional description . . . . . . . . . . . . . . . . . . . 5
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 5
Recommended operating conditions. . . . . . . . 6
Static characteristics. . . . . . . . . . . . . . . . . . . . . 6
Dynamic characteristics . . . . . . . . . . . . . . . . . . 8
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 13
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 15
Legal information. . . . . . . . . . . . . . . . . . . . . . . 16
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 16
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Contact information. . . . . . . . . . . . . . . . . . . . . 16
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Nexperia B.V. 2017. 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: 12 June 2008
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