HD74AC194 Datasheet, PDF (4/8 Pages) Hitachi Semiconductor – 4-bit Bidirectional Unviersal Shift Register

HD74AC194
Timing Diagram
CP
Mode
S0
Control
Inputs ^S1
MR
Parallel
Data
DSH
Inputs DSL
P0
H
Parallel
P1
L
Data
Inputs ^P2
H
P3
L
Q0
Q1
Outputs
Q2
Q3
Clear Load
Shift Right
Shift Left
Inhibit
Clear
Absolute Maximum Ratings
Item
Supply voltage
DC input diode current
DC input voltage
DC output diode current
DC output voltage
DC output source or sink current
DC V_CC or ground current per output pin
Storage temperature
Symbol
V_CC
I_IK
V_I
I_OK
V_O
I_O
I_CC, I_GND
Tstg
Ratings
–0.5 to 7
–20
20
–0.5 to Vcc+0.5
–50
50
–0.5 to Vcc+0.5
±50
±50
–65 to +150
Recommended Operating Conditions
Item
Supply voltage
Input and output voltage
Operating temperature
Input rise and fall time
(except Schmitt inputs)
V_IN 30% to 70% V_CC
Symbol
V_CC
V_I, V_O
Ta
tr, tf
Ratings
2 to 6
0 to V_CC
–40 to +85
8
Unit
V
mA
mA
V
mA
mA
V
mA
mA
°C
Condition
V_I = –0.5V
V_I = Vcc+0.5V
V_O = –0.5V
V_O = Vcc+0.5V
Unit
V
V
°C
ns/V
Condition
V_CC = 3.0V
V_CC = 4.5 V
V_CC = 5.5 V
Rev.2.00, Jul.16.2004, page 4 of 7