Datasheet
SDLS053B − OCTOBER 1976 − REVISED MAY 2004
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
schematics of inputs and outputs
EQUIVALENT OF EACH INPUT
V
CC
Input
R
eq
0 input (’148): R
eq
= 2 kΩ NOM
All other inputs: R
eq
= 4 kΩ NOM
TYPICAL OF ALL OUTPUTS
V
CC
Output
’147, ’148
Ω NOM
EQUIVALENT OF ALL INPUTS
V
CC
Input
’LS147, ’LS148
TYPICAL OF ALL OUTPUTS
Output
V
CC
120 Ω NOM
R
eq
’LS148 inputs 1–7: R
eq
= 9 kΩ NOM
All other inputs: R
eq
= 18 kΩ NOM