M74HCT640RM13TR STMicroelectronics, M74HCT640RM13TR Datasheet - Page 2

• Manufacturer Part Number: M74HCT640RM13TR
• Description: IC TRANSCEIVER 3-ST 8BIT 20SOIC
• Manufacturer: STMicroelectronics
• Series: 74HCTr

Specifications of M74HCT640RM13TR

• Logic Type: Transceiver, Inverting
• Number Of Elements: 1
• Number Of Bits Per Element: 8
• Current - Output High, Low: 6mA, 6mA
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1921-2

M74HCT640
INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
X : Don’t Care
Z : High Impedance
LOGIC DIAGRAM
This logic diagram has not be used to estimate propagation delays
2/11
G
H
L
L
INPUTS
DIR
H
X
L
OUTPUT
A BUS
INPUT
Z
PIN DESCRIPTION
2, 3, 4, 5, 6,
18, 17, 16,
15, 14, 13,
FUNCTION
PIN No
7, 8, 9
12, 11
19
10
20
1
OUTPUT
SYMBOL
B BUS
A1 to A8
B1 to B8
INPUT
GND
V
DIR
Z
G
CC
Directional Control
Data Inputs/Outputs
Data Inputs/Outputs
Output Enable Input
Ground (0V)
Positive Supply Voltage
NAME AND FUNCTION
OUTPUT
B = A
A = B
Z