HD74LS164_15 Datasheet, PDF (5/11 Pages) Renesas Technology Corp – 8-Bit Parallel-Out Serial-in Shift Register

HD74LS164
Electrical Characteristics
(Ta = –20 to +75 °C)
Item
Symbol
min.
typ.* max.
Unit
Condition
Input voltage
Output voltage
Input current
Short-circuit output
current
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, V_IH = 2 V,
—
—
0.5
I_OL = 8 mA ^VIL ^{= 0.8 V}
I_IH
—
—
20
µA V_CC = 5.25 V, V_I = 2.7 V
I_IL
—
—
–0.4
mA V_CC = 5.25 V, V_I = 0.4 V
I_I
—
—
0.1
mA V_CC = 5.25 V, V_I = 7 V
I_OS
–20
—
–100
mA V_CC = 5.25 V
Supply current**
I_CC
—
16
27
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 outputs open, serial inputs grounded, the clock input at 2.4 V, and a momentary
grounded, then 4.5 V applied to clear.
Switching Characteristics
(V_CC = 5 V, Ta = 25°C)
Item
Symbol Inputs Outputs min.
typ.
max.
Unit Condition
Maximum clock frequency
ƒ_max
25
36
—
MHz
Propagation delay time
t_PHL
Clear
Q
t_PLH
Clock
Q
—
24
36
ns C_L = 15 pF,
—
17
27
ns
R_L = 2 kΩ
t_PHL
Clock
Q
—
21
32
ns
Rev.2.00, Feb.18.2005, page 3 of 8