HD74LS393 Datasheet, PDF (3/7 Pages) Hitachi Semiconductor – DUAL 4-BIT BINARY COUNTERS

HD74LS393
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply voltage
V_CC
7
V
Input voltage
Clear
V_IN
A
V_IN
7
V
5.5
V
Power dissipation
Storage temperature
P_T
Tstg
400
mW
–65 to +150
°C
Operating temperature
Topr
–20 to +75
°C
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Recommended Operating Conditions
Item
Supply voltage
Output current
Operating temperature
Count frequency A input
Pulse width
A input high
or low
Clear high
Clear setup time
Symbol
V_CC
I_OH
I_OL
Topr
ƒ_count
t_w
t_su
Min
4.75
—
—
–20
0
20
20
25↓
Typ
Max
5.00
5.25
—
–400
—
8
—
75
—
25
—
—
—
—
—
—
Unit
V
µA
mA
°C
MHz
ns
ns
Electrical Characteristics
(Ta = –20 to +75 °C)
Item
Symbol min. typ.* max. Unit
Condition
Input voltage
Output voltage
Clear
Input A
V_IH
2.0
—
—
V
V_IL
—
—
0.8
V
V_OH
2.7
—
—
V
V_CC = 4.75 V, V_IH = 2 V, V_IL = 0.8 V,
I_OH = –400 µA
V_OL
—
—
0.4
V
I_OL = 4 mA V_CC = 4.75 V,
—
—
0.5
I_OL = 8 mA ^VIH ^{= 2 V, V}IL ^{= 0.8 V}
—
—
20
I_IH
—
—
100
µA V_CC = 5.25 V, V_I = 2.7 V
Input
current
Clear
Input A
—
—
–0.4
I_IL
—
—
–1.6
mA V_CC = 5.25 V, V_I = 0.4 V
Clear
Input A
I_I
—
—
—
—
0.1
0.2
mA
V_I = 7 V
V_I = 5.5 V
V_CC = 5.25 V
Short-circuit output current
I_OS
–20
—
–100
mA V_CC = 5.25 V
Supply current
I_CC**
—
15
26
mA V_CC = 5.25 V
Input clamp voltage
V_IK
—
—
–1.5
V
V_CC = 4.75 V, I_IN = –18 mA
Notes: * V_CC = 5 V, Ta = 25°C
** I_CC is measured with all outputs open, both clear inputs grounded following momentary connection to 4.5 V,
and all other inputs grounded.
Rev.2.00, Feb.18.2005, page 3 of 6