M74HC541 Datasheet, PDF (2/10 Pages) STMicroelectronics – OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED)

M74HC541
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1, 19
2, 3, 4, 5, 6,
7, 8, 9
18, 17, 16,
15, 14, 13,
12, 11
10
20
SYMBOL
G1, G2
A1 to A8
NAME AND FUNCTION
Output Enable Inputs
Data Inputs
Y1 to Y8 Bus Outputs
GND
V_CC
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
G1
H
X
L
L
X : Don’t Care
Z : High Impedance
INPUT
G2
X
H
L
L
OUTPUT
An
Yn
X
Z
X
Z
H
H
L
L
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V_CC Supply Voltage
-0.5 to +7
V
V_I
DC Input Voltage
-0.5 to V_CC + 0.5
V
V_O
DC Output Voltage
-0.5 to V_CC + 0.5
V
I_IK
DC Input Diode Current
± 20
mA
I_OK
DC Output Diode Current
± 20
mA
I_O
DC Output Current
± 35
mA
I_CC or I_GND DC V_CC or Ground Current
± 70
mA
P_D
Power Dissipation
500(*)
mW
T_stg Storage Temperature
-65 to +150
°C
T_L
Lead Temperature (10 sec)
300
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C
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