Timing Diagram
74HC164
400
MR
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
CP
DSA
DSB
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Reset
All Q=0
Reset
All Q=0
Notes:
.
5. All Q values are reset to LOW when MR goes low. MR is asynchronous and overrides all other signals.
6. Serial data supplied at DSA and DSB is ANDED and transferred to Q0 on positive edge of CP.
Absolute Maximum Ratings (Note 7) (TA = +25°C, unless otherwise specified.)
Symbol
ESD HBM
ESD CDM
ESD MM
VCC
VI
IIK
IOK
IO
ICC
IGND
TJ
TSTG
PTOT
Description
Human Body Model ESD Protection
Charged Device Model ESD Protection
Machine Model ESD Protection
Supply Voltage Range
Input Voltage Range (Note 8)
Input Clamp Current VI < -0.5V or Vi > VCC +0.5V
Output Clamp Current VO < -0.5V or VO > VCC +0.5V
Continuous Output Current -0.5V < VO VCC +0.5V
Continuous Current through Vcc
Continuous Current through GND
Operating Junction Temperature
Storage Temperature
Total Power Dissipation
Rating
Unit
2
kV
1
kV
200
V
-0.5 to +7.0
V
-0.5 to +7.0
V
±20
mA
±20
mA
+/- 25
mA
50
mA
-50
mA
-40 to +150
°C
-65 to +150
°C
500
mW
Notes:
7. Stresses beyond the absolute maximum may result in immediate failure or reduced reliability. These are stress values and device operation should
be within recommend values.
8. Input Voltage cannot exceed Vcc to the extent the maximum clamp current is exceeded.
74HC164
Document number: DS36279 Rev. 2- 2
3 of 10
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March 2015
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