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M74HC640 Datasheet(PDF) 1 Page - STMicroelectronics

Part # M74HC640
Description  OCTAL BUS TRANSCEIVER WITH 3 STATE OUTPUTS (INVERTING)
PDF  11 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M74HC640 Datasheet(HTML) 1 Page - STMicroelectronics

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August 2001
s
HIGH SPEED:
tPD = 10ns (TYP.) at VCC = 6V
s
LOW POWER DISSIPATION:
ICC = 4µA(MAX.) at TA=25°C
s
HIGH NOISE IMMUNITY:
VNIH = VNIL = 28 % VCC (MIN.)
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 6mA (MIN)
s
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
s
WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 640
DESCRIPTION
The 74HC640 is an advanced high-speed CMOS
OCTAL
BUS
TRANSCEIVER
(3-STATE)
fabricated with silicon gate C2MOS technology.
This IC is intended for two-way asynchronous
communication between data buses, and the
direction of data transmission is determined by
DIR input. The enable input G can be used to
disable the device so that the buses are effectively
isolated.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC640
OCTAL BUS TRANSCEIVER
WITH 3 STATE OUTPUTS (INVERTING)
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
M74HC640B1R
SOP
M74HC640M1R
M74HC640RM13TR
TSSOP
M74HC640TTR
TSSOP
DIP
SOP


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