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U74HCT640

Unisonic Technologies
Part Number U74HCT640
Manufacturer Unisonic Technologies
Description OCTAL BUS TRANSCEIVERS
Published Nov 6, 2012
Detailed Description UNISONIC TECHNOLOGIES CO., LTD U74HCT640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS  DESCRIPTION The U74HCT640 is a oc...
Datasheet PDF File U74HCT640 PDF File

U74HCT640
U74HCT640

Overview
UNISONIC TECHNOLOGIES CO.
, LTD U74HCT640 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS  DESCRIPTION The U74HCT640 is a octal bus transceivers with 3-state outputs.
It is designed for asynchronous two-way communication between data buses.
Depending on the direction-control (DIR) input, data are transmitted from the A bus to the B bus or from B bus to the A bus.
When OE is high, the buses are effectively isolated.
When OE is low, the buses are enable.
 FEATURES * Inputs are TTL-voltage compatible * Typical tPD of 12ns at 5.
5V, CL=50pF * Low power consumption, ICC = 8μA (Max) at 5.
5V * ±6mA output driver at 4.
5V CMOS IC DIP-20 SOP-20 SSOP-20 TSSOP-20  ORDERING INFORMATION Ordering Number Lead Free Halogen Free U74HCT640L-D20-T U74HCT640G-D20-T U74HCT640L-S20-R U74HCT640G-S20-R U74HCT640L-R20-R U74HCT640G-R20-R U74HCT640L-P20-R U74HCT640G-P20-R Package DIP-20 SOP-20 SSOP-20 TSSOP-20 Packing Tube Tape Reel Tape Reel Tape Reel  MARKING DIP-20 SOP-20 / SSOP-20 / TSSOP-20 www.
unisonic.
com.
tw Copyright © 2023 Unisonic Technologies Co.
, Ltd 1 of 6 QW-R502-684.
D U74HCT640  PIN CONFIGURATION CMOS IC  FUNCTION TABLE (each buffer) INPUTS OE DIR L L L H H X  LOGIC DIAGRAM (positive logic) OE DIR A1 OPERATION B data to A bus A data to B bus Isolation B1 To seven other transceivers UNISONIC TECHNOLOGIES CO.
, LTD www.
unisonic.
com.
tw 2 of 6 QW-R502-684.
D U74HCT640 CMOS IC  ABSOLUTE MAXIMUM RATING (Unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage Input Voltage VCC -0.
5 ~ 7 V VIN -0.
5 ~ 7 V Output Voltage Input Clamp Current (VIN<0) VOUT -0.
5 ~ VCC+0.
5 V IIK ±20 mA Output Clamp Current (VOUT<0, or VOUT>VCC) IOK Output Current IOUT ±20 mA ±25 mA VCC or GND Current Storage Temperature ICC ±50 mA TSTG -65 ~ +150 °C Note: 1.
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2.
Absolute maximum ratings are those values beyond whic...


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