SN54HC164, SN74HC164
8-BIT PARALLEL-OUT SERIAL SHIFT REGISTERS
SCLS115D – DECEMBER 1982 – REVISED AUGUST 2003
recommended operating conditions (see Note 3)
SN54HC164
MIN NOM
SN74HC164
MIN NOM
UNIT
MAX
MAX
V
V
Supply voltage
2
1.5
5
6
2
1.5
5
6
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 2 V
High-level input voltage
= 4.5 V
= 6 V
3.15
4.2
3.15
4.2
V
V
IH
= 2 V
0.5
1.35
1.8
0.5
1.35
1.8
V
IL
Low-level input voltage
= 4.5 V
= 6 V
V
V
Input voltage
0
0
V
V
0
0
V
V
V
V
I
CC
CC
Output voltage
O
CC
CC
V
CC
V
CC
V
CC
= 2 V
1000
500
400
125
1000
500
400
85
†
∆t/∆v
Input transition rise/fall time
= 4.5 V
= 6 V
ns
T
A
Operating free-air temperature
–55
–40
°C
NOTE 3: All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
†
If this device is used in the threshold region (from V max = 0.5 V to V min = 1.5 V), there is a potential to go into the wrong state from induced
grounding, causing double clocking. Operating with the inputs at t = 1000 ns and V
IL
IH
= 2 V does not damage the device; however, functionally,
t
CC
the CLK inputs are not ensured while in the shift, count, or toggle operating modes.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
T
= 25°C
SN54HC164
SN74HC164
A
PARAMETER
TEST CONDITIONS
V
UNIT
CC
MIN
TYP
MAX
MIN
1.9
4.4
5.9
3.7
5.2
MAX
MIN
1.9
MAX
2 V
4.5 V
6 V
1.9 1.998
4.4 4.499
5.9 5.999
I
= –20 µA
4.4
OH
V
V = V or V
IH
5.9
V
OH
OL
I
IL
IL
I
I
= –4 mA
4.5 V
6 V
3.98
5.48
4.3
5.8
3.84
5.34
OH
= –5.2 mA
OH
2 V
0.002
0.001
0.001
0.17
0.15
0.1
0.1
0.1
0.1
0.26
0.26
100
8
0.1
0.1
0.1
0.1
I
= 20 µA
4.5 V
6 V
OL
V
V = V or V
0.1
0.1
V
I
IH
I
I
= 4 mA
4.5 V
6 V
0.4
0.33
0.33
1000
80
OL
= 5.2 mA
0.4
OL
I
I
V = V
I
or 0
6 V
1000
160
10
nA
µA
pF
I
CC
CC
V = V
I
or 0,
I
O
= 0
6 V
CC
C
2 V to 6 V
3
10
10
i
4
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