m54hc245k1 STMicroelectronics, m54hc245k1 Datasheet - Page 2

• Manufacturer Part Number: m54hc245k1
• Description: Octal Bus Transceiver 3-state Hc245 Non Inverting Hc640 Inverting, Hc643 Inverting/non Inverting
• Manufacturer: STMicroelectronics

M54HC245
IEC LOGIC SYMBOLS
INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
X : Don’t Care
Z : High Impedance
2/10
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 N°
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
A = B
B = A
Yn
Z