Programming instructions

CMOS
Multisim Component Reference Guide 7-34 ni.com
7.2.67 4094 (8-stage Serial Shift Register)
The 4094 device is an 8-stage serial shift register having a storage latch associated with each
stage for strobing data from the serial input to parallel buffered 3-state outputs O0 to O7.
Shift register truth table:
7.2.68 4099 (8-bit Latch)
The 4099 device is an 8-bit addressable latch. The input for this device is a unidirectional
write only port.
INPUTS
PARALLEL
OUTPUTS
SERIAL
OUTPUTS
CP EO STR D O
0
O
n
O
s
O
s
0XXZ ZO
6
nc
0XXZ ZncO
7
10XncncO
6
nc
1100O
n-1
O
6
nc
1111O
n-1
O
6
nc
1 1 1 nc nc nc O
7
1 = HIGH state (the more positive voltage)
0 = LOW state (the less positive voltage)
X = state is immaterial
= positive-going transition
= negative-going transition
Z = high impedance off state
h
ComponentRef.book Page 34 Thursday, December 7, 2006 10:12 AM