Document
TC7WT125FU
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC7WT125FU
Dual Bus Buffer
The TC7WT125FU is a high speed CMOS Dual Bus Buffers fabricated with silicon gate CMOS technology.
It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation.
The input threshold levels are compatible with TTL output voltage.
The require 3-state control input G to be set high to place the output Y into the high impedance.
All inputs are equipped with protection circuits against static discharge or transient excess voltage.
Weight: 0.02 g (typ.)
Features
• High speed • Low power dissipation • High noise immunity • Output drive capability • Symmetrical output impedance
: tpd = 13 ns (typ.) at VCC = 5 V : ICC = 2 μA (max) at Ta = 25°C : VIL = 0.8 V (max), VIH = 2.0 V (min) : 15 LSTTL loads : |IOH| = IOL = 6 mA (min)
Marking
WT125
(SM8)
Part No. Lot No.
Absolute Maximum Ratings (Ta = 25°C)
Characteristics
Supply voltage range DC input voltage DC output voltage Input diode current Output diode current DC output current DC VCC/ground current Power dissipation Storage temperature range Lead temperature (10 s)
Symbol
VCC VIN VOUT IIK IOK IOUT ICC PD Tstg TL
Rating
Unit
−0.5 to 7
V
−0.5 to VCC + 0.5
V
−0.5 to VCC + 0.5
V
±20
mA
±20
mA
±35
mA
±37.5
mA
300
mW
−65 to 150
°C
260
°C
Pin Configuration (top view)
VCC G2 Y1 A2
8
7
6
5
1
2
3
4
G1 A1 Y2 GND
Note: 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).
Start of commercial production
1996-09
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Logic Diagram
(1)
G1
EN
(2)
A1
(7)
G2
(5)
A2
(6) Y1
(3) Y2
Operating Ranges
Characteristics Supply voltage Input voltage Output voltage Operating temperature range Input rise and fall time
Symbol
VCC VIN VOUT Topr tr, tf
TC7WT125FU
Truth Table
Inputs
G
A
H
X
L
L
L
H
Output Y Z L H
X: Don’t care Z: High impedance
Rating
Unit
4.5 to 5.5
V
0 to VCC
V
0 to VCC
V
−40 to 85
°C
0 to 500
ns
Electrical Characteristics DC Electrical Characteristics
Characteristics
Symbol
Test Condition
VCC (V)
Ta = 25°C Min Typ. Max
Ta = −40 to 85°C Unit
Min Max
High level VIH Input voltage
Low level VIL
―
4.5 to 5.5
2.0
―
―
2.0
―
V
―
4.5 to 5.5
―
―
0.8
―
0.8
High level
VOH
VIN = VIH or VIL
IOH = −20 μA IOH = −6 mA
4.5 4.5
4.4 4.5 4.18 4.31
― ―
4.4 4.13
― ―
Output voltage
V
IOL = 20 μA
4.5
―
0
0.1
―
0.1
Low level VOL VIN = VIL
IOL = 6 mA
4.5
― 0.17 0.26 ―
0.33
3-state output off-state current
IOZ
VIN = VIH or VIL VOUT = VCC or GND
5.5
―
― ±0.5 ―
±5.0 μA
Input leakage current
IIN VIN = VCC or GND
5.5
―
― ±0.1 ―
±1.0 μA
ICC VIN = VCC or GND
5.5
―
―
2.0
―
20.0 μA
Quiescent supply current
ICCT
PER INPUT : VIN = 0.5V or 2.4V
OTHER INPUT : VCC or GND
5.5
―
―
2.0
―
2.9 mA
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TC7WT125FU
AC Electrical Characteristics (Input: tr = tf = 6 ns)
Characteristics Output transition time
Propagation delay time
Output enable time
Output disable time Input capacitance Output capacitance Power dissipation capacitance
Symbol Test Condition tTLH ― tTHL
tpLH
tpHL
―
tpZL tpZH
RL = 1 kΩ
tpLZ tpHZ
RL = 1 kΩ
CIN
―
COUT
―
CL(pF) VCC (V)
4.5 50
5.5
4.5 50
5.5
4.5 150
5.5
4.5 50
5.5
4.5 150
5.5
4.5 50
5.5
―
―
―
―
CPD
(Note) ―
―
Ta = 25°C
Min Typ. Max
―
7
12
―
6
11
―
15
25
―
13
22
―
21
33
―
18
29
―
17
30
―
14
27
―
23
38
―
20
34
―
16
30
―
13
27
―
5
10
―
10
―
―
32
―
Ta = −40 to 85°C Unit
Min Max
―
15
ns
―
14
―
31
―
28
ns
―
41
―
37
―
38
―
34
ns
―
48
―
43
―
38
ns
―
34
―
10
pF
―
―
pF
―
―
pF
Note: CPD is defined as the value of 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/2 (per gate)
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Package Dimensions
TC7WT125FU
Weight: 0.02 g (typ.)
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2015-08-27
TC7WT125FU
RESTRICTIONS ON PRODUCT USE
• Toshiba Corporation, and its subsidiaries and affiliates (collectively "TOSHIBA"), reserve the right to make changes to the information in this document, and related hardware, sof.