HD74LS122 Datasheet, PDF (3/8 Pages) Hitachi Semiconductor – Retriggerable Monostable Multivibrators(with Clear)

HD74LS122
Block Diagram
A1
A2
B1
B2
Clear
External parameter
Rect
Cext /Cext Rint
Q
Q
Q
Q
CLR
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply voltage
V_CC
7
V
Input voltage
V_IN
7
V
Power dissipation
Storage temperature
P_T
Tstg
400
mW
–65 to +150
°C
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Recommended Operating Conditions
Supply voltage
Item
Output current
Operating temperature
Input pulse width
External timing resistance
External capacitance
Wiring capacitance at Rext/Cext terminal
Symbol
V_CC
I_OH
I_OL
Topr
t_w
R_ext
C_ext
R_ext/C_ext
Min
4.75
—
—
–20
40
5
—
Typ
Max
Unit
5.00
5.25
V
—
–400
µA
—
8
mA
25
75
°C
—
—
ns
—
260
kΩ
Non restriction
—
50
pF
Rev.2.00, Feb.18.2005, page 3 of 7