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TC7WT240FU
INVERTED, 3-STATE OUTPUT
TOSHIBA
The TC7WT240FU is a high speed CMOS DUAL BUS
BUFFERS fabricated with silicon gate CMOS technology.
It achieves the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low
power dissipation.
The input threshold levels are compatible with TTL
output voltage.
It is an inverting 3-state buffer having two active-low
output enables.
All inputs are equipped with protection circuits against
static discharge or transient excess voltage.
FEATURES
It High Speed
0 Low Power Dissipation ...............
Output Drive Capability
MAXIMUM RATINGS (Ta = 25°C)
Compatible with TTL outputs ......
Symmetrical Output Impedance ...
TC7WT240FU
TOSHIBA CMOS DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC
TC7WT240FU
INVERTED, 3-STATE OUTPUT
SSOP8-P-0.65
. tpd =13ns(Typ.) at Vcc=5V
. 15 LSTTL Loads
IIOHI = IOL-- 6mA (Min.)
ICC = 2pA (Max.) at Ta = 25°C
VIL = 0.8V (Max.), VIH = 2.0V (Min.)
Weight : 0.02g (Typ.)
MARKING
WT240/
tt DD"
PIN ASSIGNMENT (TOP VIEW)
Type Name
LOT No.
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage Range VCC -0.5~7 V
DC Input Voltage VIN -0.r-Vcc+0.5 V
DC Output Voltage VOUT -0.5--Vcc+0.5 V
Input Diode Current lik :20 mA
Output Diode Current ' :20 mA
DC Output Current IOUT -+35 mA
DC Vcc/Ground Current ICC $37.5 mA
Power Dissipation PD 300 mW
Storage Temperature Tstg -tir-150 "C
Lead Temperature (10 s) TL 260 ''C
2001 -05-31
TOSHIBA
TC7WT240FU
LOGIC DIAGRAM
a _BH,
A1 -ir,=/is-,-,
5 _BEN
RECOMMENDED OPERATING CONDITIONS
TRUTH TABLE
INPUTS
OUTPUTS
x : Don't Care
Z : High Impedance
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage VCC 4.5--5.5 V
Input Voltage VIN 0~VCC V
Output Voltage VOUT ir-Vcc V
Operating Temperature Topr -40--85 "C
Input Rise and Fall Time totf 0--500 ns
DC ELECTRICAL CHARACTERISTICS
CHARACTERISTIC SYMBOL TEST CONDITION Mcc Ta =25 C Ta = -40-85 C UNIT
(V) MIN. TYP. MAX. MIN. MAX.
High-Level 4.5--
Input Voltage VIH 5.5 2.0 - - 2.0 - V
Low-Level 4.5--
Input Voltage VIL 5.5 - - 0.8 - 0.8 V
High-Level IOH = - 20pA 4.5 4.4 4.5 - 4.4 -
VOH VIN =VIL - - V
Output Voltage IOH - 6mA 4.5 4.18 4.31 - 4.13 -
Low-Level v VIN = VIH IOL = 20/zA 4.5 - 0.0 0.10 - 0.10 v
Output Voltage OL or VIL IOL = 6mA 4.5 - 0.17 0.26 - 0.33
3-State Output VIN = =VIH or VIL + +
Off-State Current log VOUT=VCC or GND 5.5 LFO.5 LF5.0 p/k
Input Leakage
= - - + - +
Current 'IN VIN VCC or GND 5.5 _0.1 - 1.0 pA
ICC VIN =VCC or GND 5.5 - - 2.0 - 20.0 pA
Quiescent Supply PER INPUT :VIN =0.5V
Current ICCT or 2.4V 5.5 - - 2.0 - 2.9 mA
OTHER INPUT: VCC or GND
2001 -05-31
TOSH I BA TC7WT240FU
AC ELECTRICAL CHARACTERISTICS (Input tr =tf = 6ns)
TEST CONDITION Ta = 25°C Ta = -40--85oc
CHARACTERISTIC SYMBOL CL VCC MIN. TYP. MAX. MIN. MAX. UNIT
Output Transition tTLH - 50 4.5 - 7 12 - 15 ns
Time tTHL 5.5 - 6 11 - 14
4.5 - 15 25 - 31
Propagation Delay tpLH - 50 5.5 - 13 22 - 28 ns
Time tpHL 150 4.5 - 21 33 - 41
5.5 - 18 29 - 37
50 4.5 - 17 30 - 38
Output Enable Time EEZZI: RL=1kQ i'd, I :31 :2 I :: ns
150 5.5 - 20 34 - 43
Output Disable Time ESE; RL=1kQ 50 g: I I' , I :2 ns
Input Capacitance CIN - - - - 5 1O - 10 pF
Output Capacitance COUT - - - - 10 - - - pF
22::1'315111'” CPD (Note1) - - - 32 - - - pF
(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 :
'CC(opr) --cinruccrhN +lcc/2 (per Gate)
3 2001-05-31
TOSH I BA TC7WT240FU
PACKAGE DIMENSIONS
SSOP8-P-0.65 Unit : mm
Lf9 ".5!
e? fr"?
S, cu.
a? O ‘t
". A LO
T- dk l
Weight : 0.02g (Typ.)
4 2001-05-31
TOSH I BA TC7WT240FU
RESTRICTIONS ON PRODUCT USE
000707EBA
OTOSHIBA is continually working to improve the quality and reliability of its products.
Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent
electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer,
when utilizing TOSHIBA products, to comply with the standards of safety in making a safe
design for the entire system, and to avoid situations in which a malfunction or failure of such
TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified
operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please
keep in mind the precautions and conditions set forth in the "Handling Guide for
Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc..
OThe TOSHIBA products listed in this document are intended for usage in general electronics
applications (computer, personal equipment, office equipment, measuring equipment, industrial
robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor
warranted for usage in equipment that requires extraordinarily high quality and/or reliability or
a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended
Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship
instruments, transportation instruments, traffic signal instruments, combustion control
instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA
products listed in this document shall be made at the customer's own risk.
0 The products described in this document are subject to the foreign exchange and foreign trade
OThe information contained herein is presented only as a guide for the applications of our
products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of
intellectual property or other rights of the third parties which may result from its use. No
license is granted by implication or otherwise under any intellectual property or other rights of
TOSHIBA CORPORATION or others.
0 The information contained herein is subject to change without notice.
5 2001-05-31
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