TC74VCX257FT
CMOS Digital Integrated Circuits
Silicon Monolithic
TC74VCX257FT
1. Functional Description
•
Low-Voltage Quad 2-Channel Multiplexer with 3.6-V Tolerant Inputs and Outputs
2. General
The TC74VCX257FT is a high performance CMOS multiplexer which is guaranteed to operate from 1.2 V to 3.6
V. Designed for use in 1.5 V, 1.8 V, 2.5 V or 3.3 V systems, it achieves high speed operation while maintaining the
CMOS low power dissipation.
It is also designed with over voltage tolerant inputs and outputs up to 3.6 V.
It consists of four 2-input digital multiplexers with common select and output enable inputs.
If OE is set high the outputs are held in a high-impedance state. The SELECT decoding determines whether the
A or B inputs get routed to their corresponding Y outputs.
All inputs are equipped with protection circuits against static discharge.
3. Features
(1)
Wide operating temperature range: Topr = -40 to 125 � (Note 1)
(2)
Low-voltage operation: VCC = 1.2 to 3.6 V
(3)
High-speed operation: tpd = 3.0 ns (max) (VCC = 3.0 to 3.6 V)
tpd = 4.0 ns (max) (VCC = 2.3 to 2.7 V)
tpd = 8.0 ns (max) (VCC = 1.65 to 1.95 V)
tpd = 16.0 ns (max) (VCC = 1.4 to 1.6 V)
tpd = 40.0 ns (max) (VCC = 1.2 V)
(4)
Output current: IOH/IOL = ±24 mA (min) (VCC = 3.0 V)
IOH/IOL = ±18 mA (min) (VCC = 2.3 V)
IOH/IOL = ±6 mA (min) (VCC = 1.65 V)
IOH/IOL = ±2 mA (min) (VCC = 1.4 V)
(5)
3.6 V tolerant function and power-down protection provided on all inputs and outputs.
Note 1: Operating Range spec of Topr = -40 � to 125 � is applicable only for the products which manufactured after
April 2020.
Start of commercial production
2020-04
©2020-2021
Toshiba Electronic Devices & Storage Corporation
1
2021-05-18
Rev.2.0
TC74VCX257FT
4. Packaging
TSSOP16
5. Pin Assignment
6. Marking
©2020-2021
Toshiba Electronic Devices & Storage Corporation
2
2021-05-18
Rev.2.0
TC74VCX257FT
7. IEC Logic Symbol
8. Truth Table
X:
Z:
Input
OE
Input
SELECT
Inputs
A
Inputs
B
Outputs
Y
H
X
X
X
Z
L
L
L
X
L
L
L
H
X
H
L
H
X
L
L
L
H
X
H
H
Don't care
High impedance
©2020-2021
Toshiba Electronic Devices & Storage Corporation
3
2021-05-18
Rev.2.0
TC74VCX257FT
9. System Diagram
©2020-2021
Toshiba Electronic Devices & Storage Corporation
4
2021-05-18
Rev.2.0
TC74VCX257FT
10. Absolute Maximum Ratings (Note)
Characteristics
Symbol
Note
Rating
Unit
Supply voltage
VCC
-0.5 to 4.6
V
Input voltage
VIN
-0.5 to 4.6
V
(Note 1)
-0.5 to 4.6
V
(Note 2)
-0.5 to VCC + 0.5
-50
mA
(Note 3)
±50
mA
±50
mA
(Note 4)
180
mW
ICC/IGND
±100
mA
Tstg
-65 to 150
�
Output voltage
VOUT
Input diode current
IIK
Output diode current
IOK
Output current
IOUT
Power dissipation
PD
VCC/ground current
Storage temperature
Note:
Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even
destruction.
Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even
if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum
ratings and the operating ranges.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test report
and estimated failure rate, etc).
Note 1: VCC = 0 V
Note 2: High (H) or Low (L) state. IOUT absolute maximum rating must be observed.
Note 3: VOUT < GND, VOUT > VCC
Note 4: 180 mW in the range of Ta = -40 to 85 �. From Ta = 85 to 125 � a derating factor of -3.25 mW/� shall be
applied until 50 mW.
11. Operating Ranges (Note)
Characteristics
Symbol
Note
Rating
Unit
Supply voltage
VCC
1.2 to 3.6
V
Input voltage
VIN
-0.3 to 3.6
V
(Note 1)
0 to 3.6
V
(Note 2)
0 to VCC
(Note 3)
±24
mA
(Note 4)
±18
mA
(Note 5)
±6
(Note 6)
±2
Output voltage
Output current
VOUT
IOH,IOL
Operating temperature
Topr
(Note 7)
-40 to 125
�
Input rise and fall times
dt/dv
(Note 8)
0 to 10
ns/V
Note:
The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either VCC or GND.
Note 1: Output in OFF state.
Note 2: High (H) or Low (L) state.
Note 3: VCC = 3.0 to 3.6 V
Note 4: VCC = 2.3 to 2.7 V
Note 5: VCC = 1.65 to 1.95 V
Note 6: VCC = 1.4 to 1.6 V
Note 7: Operating Range spec of Topr = -40 � to 125 � is applicable only for the products which manufactured after
April 2020.
Note 8: VIN = 0.8 to 2.0 V , VCC = 3.0 V
©2020-2021
Toshiba Electronic Devices & Storage Corporation
5
2021-05-18
Rev.2.0
TC74VCX257FT
12. Electrical Characteristics
12.1. DC Characteristics (Unless otherwise specified, T a = -40 to 85 �)
Characteristics
High-level input voltage
Low-level input voltage
High-level output voltage
Symbol
Test Condition
VCC (V)
Min
Max
Unit
VIH
�
1.2 to 1.4
VCC × 0.8
�
V
1.4 to 1.65
VCC × 0.65
�
1.65 to 2.3
VCC × 0.65
�
2.3 to 2.7
1.6
�
2.7 to 3.6
2.0
�
VIL
VOH
�
VIN = VIH or VIL
1.2 to 1.4
�
VCC × 0.05
1.4 to 1.65
�
VCC × 0.05
1.65 to 2.3
�
VCC × 0.2
2.3 to 2.7
�
0.7
2.7 to 3.6
�
0.8
1.2
VCC - 0.1
�
1.4 to 1.65
VCC - 0.2
�
1.65 to 3.6
VCC - 0.2
�
IOH = -2 mA
1.4
1.05
�
IOH = -6 mA
1.65
1.25
�
2.3
2.0
�
2.3
1.8
�
2.7
2.2
�
2.3
1.7
�
3.0
2.4
�
3.0
2.2
�
IOH = -100 µA
IOH = -12 mA
IOH = -18 mA
IOH = -24 mA
Low-level output voltage
VOL
VIN = VIH or VIL
IOL = 100 µA
1.2
�
0.05
1.4 to 1.65
�
0.05
1.65 to 3.6
�
0.2
IOL = 2 mA
1.4
�
0.35
IOL = 6 mA
1.65
�
0.3
IOL = 12 mA
2.3
�
0.4
2.7
�
0.4
2.3
�
0.6
3.0
�
0.4
3.0
�
0.55
IOL = 18 mA
IOL = 24 mA
V
V
V
Input leakage current
IIN
VIN = 0 to 3.6 V
1.2 to 3.6
�
±5.0
µA
3-state output OFF-state
leakage current
IOZ
VIN = VIH or VIL
VOUT = 0 to 3.6 V
1.2 to 3.6
�
±10.0
µA
Power-OFF leakage current
IOFF
VIN/VOUT = 0 to 3.6 V
0
�
10.0
µA
Quiescent supply current
ICC
VIN = VCC or GND
1.2 to 3.6
�
20.0
µA
VCC ≤ (VIN/VOUT) ≤ 3.6 V
1.2 to 3.6
�
±20.0
VIH = VCC - 0.6 V
(per 1 input)
2.7 to 3.6
�
750
∆ICC
©2020-2021
Toshiba Electronic Devices & Storage Corporation
6
µA
2021-05-18
Rev.2.0
TC74VCX257FT
12.2. DC Characteristics (Note) (Unless otherwise specified, T a = -40 to 125 �)
Characteristics
High-level input voltage
Low-level input voltage
High-level output voltage
Symbol
Test Condition
VIH
�
VIL
VOH
VCC (V)
�
VIN = VIH or VIL
IOH = -100 µA
VIN = VIH or VIL
Unit
V
1.2 to 1.4
VCC × 0.8
�
1.4 to 1.65
VCC × 0.65
�
1.65 to 2.3
VCC × 0.65
�
2.3 to 2.7
1.6
�
2.7 to 3.6
2.0
�
1.2 to 1.4
�
VCC × 0.05
1.4 to 1.65
�
VCC × 0.05
1.65 to 2.3
�
VCC × 0.2
2.3 to 2.7
�
0.7
2.7 to 3.6
�
0.8
1.2
VCC - 0.1
�
1.4 to 1.65
VCC - 0.2
�
1.65 to 3.6
VCC - 0.2
�
1.4
1.05
�
IOH = -6 mA
1.65
1.25
�
2.3
2.0
�
2.3
1.8
�
2.7
2.2
�
2.3
1.6
�
3.0
2.4
�
IOH = -24 mA
3.0
2.2
�
IOL = 100 µA
1.2
�
0.05
1.4 to 1.65
�
0.05
1.65 to 3.6
�
0.2
IOL = 2 mA
1.4
�
0.35
IOL = 6 mA
1.65
�
0.3
IOL = 12 mA
2.3
�
0.4
2.7
�
0.4
2.3
�
0.8
3.0
�
0.4
IOH = -18 mA
VOL
Max
IOH = -2 mA
IOH = -12 mA
Low-level output voltage
Min
IOL = 18 mA
IOL = 24 mA
V
V
V
3.0
�
0.55
Input leakage current
IIN
VIN = 0 to 3.6 V
1.2 to 3.6
�
±20.0
µA
3-state output OFF-state
leakage current
IOZ
VIN = VIH or VIL
VOUT = 0 to 3.6 V
1.2 to 3.6
�
±40.0
µA
Power-OFF leakage current
IOFF
VIN/VOUT = 0 to 3.6 V
0
�
40.0
µA
Quiescent supply current
ICC
VIN = VCC or GND
1.2 to 3.6
�
80.0
µA
VCC ≤ (VIN/VOUT) ≤ 3.6 V
1.2 to 3.6
�
±80.0
VIH = VCC - 0.6 V
(per 1 input)
2.7 to 3.6
�
1.5
∆ICC
Note:
mA
Operating Range spec of Topr = -40 � to 125 � is applicable only for the products which manufactured after
April 2020.
©2020-2021
Toshiba Electronic Devices & Storage Corporation
7
2021-05-18
Rev.2.0
TC74VCX257FT
12.3. AC Characteristics (Unless otherwise specified, T a = -40 to 85 �)
Characteristics
Propagation delay time
(A,B - Y)
Propagation delay time
(SELECT - Y)
3-state output enable time
3-state output disable time
Output skew
Symbol
Note
tPLH,tPHL
tPLH,tPHL
tPZL,tPZH
tPLZ,tPHZ
Test Condition
See 12.7 AC Test Circuit,
Table 12.7.1, Fig. 12.8.1,
Table 12.8.1
See 12.7 AC Test Circuit,
Table 12.7.1, Fig. 12.8.1,
Table 12.8.1
See 12.7 AC Test Circuit,
Table 12.7.1, Fig. 12.8.2,
Table 12.8.1
See 12.7 AC Test Circuit,
Table 12.7.1, Fig. 12.8.2,
Table 12.8.1
tosLH,tosHL (Note 1)
�
VCC (V)
Min
Max
Unit
ns
1.2
3.0
40.0
1.5 ± 0.1
2.0
16.0
1.8 ± 0.15
1.5
8.0
2.5 ± 0.2
0.8
4.0
3.3 ± 0.3
0.6
3.0
1.2
3.0
48.0
1.5 ± 0.1
2.0
19.2
1.8 ± 0.15
1.5
9.6
2.5 ± 0.2
0.8
4.8
3.3 ± 0.3
0.6
4.0
1.2
3.0
46.0
1.5 ± 0.1
2.0
18.4
1.8 ± 0.15
1.5
9.2
2.5 ± 0.2
0.8
4.6
3.3 ± 0.3
0.6
3.5
1.2
3.0
34.0
1.5 ± 0.1
2.0
13.6
1.8 ± 0.15
1.5
6.8
2.5 ± 0.2
0.8
3.8
3.3 ± 0.3
0.6
3.5
1.2
�
1.5
1.5 ± 0.1
�
1.5
1.8 ± 0.15
�
0.5
2.5 ± 0.2
�
0.5
3.3 ± 0.3
�
0.5
ns
ns
ns
ns
Note 1: Parameter guaranteed by design. (tosLH = |tPLHm-tPLHn|, tosHL = |tPHLm-tPHLn|)
©2020-2021
Toshiba Electronic Devices & Storage Corporation
8
2021-05-18
Rev.2.0
TC74VCX257FT
12.4. AC Characteristics (Note) (Unless otherwise specified, T a = -40 to 125 �)
Characteristics
Propagation delay time
(A,B - Y)
Propagation delay time
(SELECT - Y)
3-state output enable time
3-state output disable time
Output skew
Symbol
Note
tPLH,tPHL
Test Condition
See 12.7 AC Test Circuit,
Table 12.7.1, Fig. 12.8.1,
Table 12.8.1
tPLH,tPHL
See 12.7 AC Test Circuit,
Table 12.7.1, Fig. 12.8.1,
Table 12.8.1
tPZL,tPZH
See 12.7 AC Test Circuit,
Table 12.7.1, Fig. 12.8.2,
Table 12.8.1
tPLZ,tPHZ
See 12.7 AC Test Circuit,
Table 12.7.1, Fig. 12.8.2,
Table 12.8.1
tosLH,tosHL (Note 1)
�
VCC (V)
Min
Max
Unit
ns
1.2
3.0
52.0
1.5 ± 0.1
2.0
20.4
1.8 ± 0.15
1.5
9.5
2.5 ± 0.2
0.8
4.8
3.3 ± 0.3
0.6
3.6
1.2
3.0
62.4
1.5 ± 0.1
2.0
24.4
1.8 ± 0.15
1.5
11.4
2.5 ± 0.2
0.8
5.7
3.3 ± 0.3
0.6
4.8
1.2
3.0
60.0
1.5 ± 0.1
2.0
23.4
1.8 ± 0.15
1.5
10.9
2.5 ± 0.2
0.8
5.5
3.3 ± 0.3
0.6
4.2
1.2
3.0
45.0
1.5 ± 0.1
2.0
17.3
1.8 ± 0.15
1.5
8.1
2.5 ± 0.2
0.8
4.5
3.3 ± 0.3
0.6
4.2
1.2
�
2.0
1.5 ± 0.1
�
2.0
1.8 ± 0.15
�
1.0
2.5 ± 0.2
�
1.0
3.3 ± 0.3
�
1.0
ns
ns
ns
ns
Note:
Operating Range spec of Topr = -40 � to 125 � is applicable only for the products which manufactured after
April 2020.
Note 1: Parameter guaranteed by design. (tosLH = |tPLHm-tPLHn|, tosHL = |tPHLm-tPHLn|)
12.5. Dynamic Switching Characteristics (Note)
(Unless otherwise specified, T a = 25 �, Input: t r = t f = 2.0 ns, C L = 30 pF)
Characteristics
Quiet output maximum dynamic VOL
Quiet output minimum dynamic VOL
Quiet output minimum dynamic VOH
Note:
Symbol
VOLP
VOLV
VOHV
Test Condition
VCC (V)
Typ.
Unit
VIH = 1.8 V, VIL = 0 V
1.8
0.25
V
VIH = 2.5 V, VIL = 0 V
2.5
0.6
VIH = 3.3 V, VIL = 0 V
3.3
0.8
VIH = 1.8 V, VIL = 0 V
1.8
-0.25
VIH = 2.5 V, VIL = 0 V
2.5
-0.6
VIH = 3.3 V, VIL = 0 V
3.3
-0.8
VIH = 1.8 V, VIL = 0 V
1.8
1.5
VIH = 2.5 V, VIL = 0 V
2.5
1.9
VIH = 3.3 V, VIL = 0 V
3.3
2.2
V
V
Parameter guaranteed by design.
©2020-2021
Toshiba Electronic Devices & Storage Corporation
9
2021-05-18
Rev.2.0
TC74VCX257FT
12.6. Capacitive Characteristics (Unless otherwise specified, T a = 25 �)
Characteristics
Symbol
Input capacitance
Note
Test Condition
VCC (V)
Typ.
Unit
CIN
�
1.8, 2.5, 3.3
6
pF
Output capacitance
COUT
�
1.8, 2.5, 3.3
7
pF
Power dissipation capacitance
CPD
1.8, 2.5, 3.3
20
pF
(Note 1) fIN = 10 MHz
Note 1: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current
consumption without load. Average operating current can be obtained by the equation.
ICC(opr) = CPD × VCC × fIN + ICC/4 (per 1 gate)
12.7. AC Test Circuit
Table 12.7.1
Parameter for AC Test Circuit
Parameter
Switch
Test Condition
tPLH, tPHL
OPEN
�
tPLZ, tPZL
6.0 V
VCC = 3.3 ± 0.3 V
VCC × 2
VCC = 2.5 ± 0.2 V
VCC = 1.8 ± 0.15 V
VCC = 1.5 ± 0.1 V
VCC = 1.2 V
tPHZ, tPZH
©2020-2021
Toshiba Electronic Devices & Storage Corporation
GND
10
�
2021-05-18
Rev.2.0
TC74VCX257FT
12.8. AC Waveform
Fig. 12.8.1
Fig. 12.8.2
Table 12.8.1
Input
Output
Load
t PLH , t PHL
t PLZ , t PHZ , t PZL , t PZH
AC Waveform Symbols
VCC = 2.5 ± 0.2 V
VCC = 1.8 ± 0.15 V
VCC = 1.5 ± 0.1 V
VCC = 1.2 V
Symbol
VCC = 3.3 ± 0.3 V
VIH
2.7 V
VCC
VCC
VM
1.5 V
VCC/2
VCC/2
tr, tf
2.0 ns
2.0 ns
2.0 ns
VM
1.5 V
VCC/2
VCC/2
VX
VOL + 0.3 V
VOL + 0.15 V
VOL + 0.15 V
VY
VOH - 0.3 V
VOH - 0.15 V
VOH - 0.15 V
CL
30 pF
30 pF
15 pF
RL
500 Ω
500 Ω
2 kΩ
©2020-2021
Toshiba Electronic Devices & Storage Corporation
11
2021-05-18
Rev.2.0
TC74VCX257FT
Package Dimensions
Unit: mm
Weight: 0.06 g (typ.)
Package Name(s)
Nickname: TSSOP16
©2020-2021
Toshiba Electronic Devices & Storage Corporation
12
2021-05-18
Rev.2.0
TC74VCX257FT
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Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances,
including without limitation, the EU RoHS Directive. TOSHIBA ASSUMES NO LIABILITY FOR DAMAGES OR LOSSES OCCURRING
AS A RESULT OF NONCOMPLIANCE WITH APPLICABLE LAWS AND REGULATIONS.
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©2020-2021
Toshiba Electronic Devices & Storage Corporation
13
2021-05-18
Rev.2.0
