MC74F194 Datasheet, PDF (2/3 Pages) Motorola, Inc – 4-BIT BIDIRECTIONAL UNIVERSAL SHIFT REGISTER

P0
S1
S0
DSR
MC74F194
LOGIC DIAGRAM
P1
P2
P3
DSR
S Q0
CP
R
CLEAR
S Q1
CP
R
CLEAR
S Q2
CP
R
CLEAR
S Q3
CP
R
CLEAR
CP
MR
Q0
Q1
Q2
Q3
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate
propagation delays.
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
74
4.5
5.0
5.5
V
TA
Operating Ambient Temperature Range
74
0
25
70
°C
IOH
Output Current — High
74
– 1.0
mA
IOL
Output Current — Low
74
20
mA
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
V
VIL
Input LOW Voltage
0.8
V
VIK
Input Clamp Diode Voltage
– 1.2
V
74
2.5
3.4
V
VOH
Output HIGH Voltage
74
2.7
3.4
V
VOL
IIH
Output LOW Voltage
Input HIGH Current
0.35
0.5
V
20
µA
100
µA
IIL
Input LOW Current
IOS
Output Short Circuit Current (Note 2)
– 60
– 0.6
mA
–150
mA
ICC
Power Supply Current
33
46
mA
NOTES:
1. For conditions such as MIN or MAX, use the appropriate value specified under guaranteed operating ranges.
2. Not more than one output should be shorted at a time, nor for more than 1 second.
Guaranteed Input HIGH Voltage
Guaranteed Input LOW Voltage
IIN = –18 mA
IOH = –1.0 mA
IOH = –1.0 mA
IOL = 20 mA
VIN = 2.7 V
VIN = 7.0 V
VIN = 0.5 V
VOUT = 0 V
Sn, MR, DSR,
DSL = 4.5 V
Pn = Gnd,
CP =
VCC = MIN
VCC = 4.5 V
VCC = 4.75 V
VCC = MIN
VCC = MAX
VCC = MAX
VCC = MAX
VCC = MAX
FAST AND LS TTL DATA
4-102