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M74HC643 Datasheet(PDF) 1 Page - STMicroelectronics

Part No. M74HC643
Description  OCTAL BUS TRANSCEIVER WITH 3 STATE OUTPUTS INVERTING/NON INVERTING
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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M74HC643 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 643
DESCRIPTION
The 74HC643 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.
M74HC643
OCTAL BUS TRANSCEIVER
WITH 3 STATE OUTPUTS (INVERTING/NON INVERTING)
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
M74HC643B1R
SOP
M74HC643M1R
M74HC643RM13TR
TSSOP
M74HC643TTR
TSSOP
DIP
SOP


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