74HC164; 74HCT164
Rev. 9 — 11 June 2020
8-bit serial-in, parallel-out shift register
Product data sheet
1. General description
The 74HC164; 74HCT164 is an 8-bit serial-in/parallel-out shift register. The device features two
serial data inputs (DSA and DSB), eight parallel data outputs (Q0 to Q7). Data is entered serially
through DSA or DSB and either input can be used as an active HIGH enable for data entry through
the other input. Data is shifted on the LOW-to-HIGH transitions of the clock (CP) input. A LOW on
the master reset input (MR) clears the register and forces all outputs LOW, independently of other
inputs. Inputs include clamp diodes. This enables the use of current limiting resistors to interface
inputs to voltages in excess of V
CC
.
2. Features and benefits
•
•
•
•
Wide supply voltage range from 2.0 to 6.0 V
CMOS low power dissipation
High noise immunity
Input levels:
•
For 74HC164: CMOS level
•
For 74HCT164: TTL level
Gated serial data inputs
Asynchronous master reset
Complies with JEDEC standards
•
JESD8C (2.7 V to 3.6 V)
•
JESD7A (2.0 V to 6.0 V)
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
ESD protection:
•
HBM JESD22-A114F exceeds 2000 V
•
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from -40 °C to +85 °C and -40 °C to +125 °C.
•
•
•
•
•
•
•
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range
74HC164D
74HCT164D
74HC164DB
74HCT164DB
74HC164PW
74HCT164PW
74HC164BQ
74HCT164BQ
-40 °C to +125 °C
DHVQFN14
-40 °C to +125 °C
TSSOP14
-40 °C to +125 °C
SSOP14
-40 °C to +125 °C
Name
SO14
Description
plastic small outline package; 14 leads;
body width 3.9 mm
plastic shrink small outline package; 14 leads;
body width 5.3 mm
plastic thin shrink small outline package; 14 leads;
body width 4.4 mm
plastic dual in-line compatible thermal enhanced
very thin quad flat package; no leads; 14 terminals;
body 2.5 × 3 × 0.85 mm
Version
SOT108-1
SOT337-1
SOT402-1
SOT762-1
Nexperia
74HC164; 74HCT164
8-bit serial-in, parallel-out shift register
4. Functional diagram
8
9
1
2
SRG8
C1/
R
&
1D
3
4
DSA
DSB
3
4
5
6
10
CP
MR
8
9
11
12
13
001aac423
1
2
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
001aac424
5
6
10
11
12
13
Fig. 1.
Logic symbol
1
2
8
9
Fig. 2.
IEC logic symbol
DSA
DSB
CP
MR
8-BIT SERIAL- IN/PARALLEL- OUT
SHIFT REGISTER
3
4
5
6
10
11
12
13
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
001aac425
Fig. 3.
DSA
Logic diagram
D
DSB
CP
FF1
R
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
CP
FF2
R
D
CP
FF3
R
D
CP
FF4
R
D
CP
FF5
R
D
CP
FF6
R
D
CP
FF7
R
D
CP
FF8
R
D
CP
MR
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
001aac616
Fig. 4.
Functional diagram
74HC_HCT164
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2020. All rights reserved
Product data sheet
Rev. 9 — 11 June 2020
2 / 17
Nexperia
74HC164; 74HCT164
8-bit serial-in, parallel-out shift register
5. Pinning information
5.1. Pinning
74HC164
74HCT164
DSA
2
3
4
5
6
7
GND
CP
8
GND
(1)
1
terminal 1
index area
DSB
14 V
CC
13 Q7
12 Q6
11 Q5
10 Q4
9
MR
74HC164
74HCT164
DSA
DSB
Q0
Q1
Q2
Q3
GND
1
2
3
4
5
6
7
001aal390
Q0
Q1
14 V
CC
13 Q7
12 Q6
11 Q5
10 Q4
9
8
MR
CP
Q2
Q3
001aal391
Transparent top view
Fig. 5.
Pin configuration SOT108-1 (SO14),
SOT337-1 (SSOP14) and SOT402-1 (TSSOP14)
(1) This is not a ground pin. There is no electrical or
mechanical requirement to solder the pad. In case
soldered, the solder land should remain floating or
connected to GND.
Fig. 6.
Pin configuration SOT762-1 (DHVQFN14)
5.2. Pin description
Table 2. Pin description
Symbol
DSA
DSB
Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7
GND
CP
MR
V
CC
Pin
1
2
3, 4, 5, 6, 10, 11, 12, 13
7
8
9
14
Description
data input
data input
output
ground (0 V)
clock input (LOW-to-HIGH, edge-triggered)
master reset input (active LOW)
positive supply voltage
74HC_HCT164
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2020. All rights reserved
Product data sheet
Rev. 9 — 11 June 2020
3 / 17
Nexperia
74HC164; 74HCT164
8-bit serial-in, parallel-out shift register
6. Functional description
Table 3. Function table
H = HIGH voltage level; h = HIGH voltage level one set-up time prior to the LOW-to-HIGH clock transition;
L = LOW voltage level; I = LOW voltage level one set-up time prior to the LOW-to-HIGH clock transition
q = lower case letters indicate the state of the referenced input one set-up time prior to the LOW-to-HIGH clock transition
↑ = LOW-to-HIGH clock transition; X = don’t care
Operating
modes
Reset (clear)
Shift
Input
MR
L
H
H
H
H
CP
X
↑
↑
↑
↑
DSA
X
l
l
h
h
DSB
X
l
h
l
h
Output
Q0
L
L
L
L
H
Q1 to Q7
L to L
q0 to q6
q0 to q6
q0 to q6
q0 to q6
7. Limiting values
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
V
CC
I
IK
I
OK
I
O
I
CC
I
GND
T
stg
P
tot
[1]
[2]
Conditions
V
I
< -0.5 V or V
I
> V
CC
+ 0.5 V
V
O
< -0.5 V or V
O
> V
CC
+ 0.5 V
-0.5 V < V
O
< V
CC
+ 0.5 V
[1]
[1]
Min
-0.5
-
-
-
-
-50
-65
[2]
-
Max
+7
±20
±20
±25
50
-
+150
500
Unit
V
mA
mA
mA
mA
mA
°C
mW
supply voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
For SOT108-1 (SO14) package: P
tot
derates linearly with 10.1 mW/K above 100 °C.
For SOT337-1 (SSOP14) package: P
tot
derates linearly with 7.3 mW/K above 81 °C.
For SOT402-1 (TSSOP14) package: P
tot
derates linearly with 7.3 mW/K above 81 °C.
For SOT762-1 (DHVQFN14) package: P
tot
derates linearly with 9.6 mW/K above 98 °C.
74HC_HCT164
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2020. All rights reserved
Product data sheet
Rev. 9 — 11 June 2020
4 / 17
Nexperia
74HC164; 74HCT164
8-bit serial-in, parallel-out shift register
8. Recommended operating conditions
Table 5. Recommended operating conditions
Voltages are referenced to GND (ground = 0 V)
Symbol Parameter
V
CC
V
I
V
O
T
amb
Δt/ΔV
supply voltage
input voltage
output voltage
ambient temperature
input transition rise and fall rate V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
Conditions
Min
2.0
0
0
-40
-
-
-
74HC164
Typ
5.0
-
-
+25
-
1.67
-
Max
6.0
V
CC
V
CC
+125
625
139
83
Min
4.5
0
0
-40
-
-
-
74HCT164
Typ
5.0
-
-
+25
-
1.67
-
Max
5.5
V
CC
V
CC
-
139
-
V
V
V
ns/V
ns/V
ns/V
Unit
+125 °C
9. Static characteristics
Table 6. Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
Min
74HC164
V
IH
HIGH-level
input voltage
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
V
IL
LOW-level input V
CC
= 2.0 V
voltage
V
CC
= 4.5 V
V
CC
= 6.0 V
V
OH
HIGH-level
output voltage
V
I
= V
IH
or V
IL
I
O
= -20 μA; V
CC
= 2.0 V
I
O
= -20 μA; V
CC
= 4.5 V
I
O
= -20 μA; V
CC
= 6.0 V
I
O
= -4.0 mA; V
CC
= 4.5 V
I
O
= -5.2 mA; V
CC
= 6.0 V
V
OL
LOW-level
output voltage
V
I
= V
IH
or V
IL
I
O
= 20 μA; V
CC
= 2.0 V
I
O
= 20 μA; V
CC
= 4.5 V
I
O
= 20 μA; V
CC
= 6.0 V
I
O
= 4.0 mA; V
CC
= 4.5 V
I
O
= 5.2 mA; V
CC
= 6.0 V
I
I
I
CC
C
I
input leakage
current
supply current
input
capacitance
V
I
= V
CC
or GND; V
CC
= 6.0 V
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 6.0 V
-
-
-
-
-
-
-
-
0
0
0
0.15
0.16
-
-
3.5
0.1
0.1
0.1
0.26
0.26
±0.1
8.0
-
-
-
-
-
-
-
-
-
0.1
0.1
0.1
0.33
0.33
±1
80
-
-
-
-
-
-
-
-
-
0.1
0.1
0.1
0.4
0.4
±1
160
-
V
V
V
V
V
μA
μA
pF
1.9
4.4
5.9
3.98
5.48
2.0
4.5
6.0
4.32
5.81
-
-
-
-
-
1.9
4.4
5.9
3.84
5.34
-
-
-
-
-
1.9
4.4
5.9
3.7
5.2
-
-
-
-
-
V
V
V
V
V
1.5
3.15
4.2
-
-
-
1.2
2.4
3.2
0.8
2.1
2.8
-
-
-
0.5
1.35
1.8
1.5
3.15
4.2
-
-
-
-
-
-
0.5
1.35
1.8
1.5
3.15
4.2
-
-
-
-
-
-
0.5
1.35
1.8
V
V
V
V
V
V
25 °C
Typ
Max
-40 °C to
+85 °C
Min
Max
-40 °C to
+125 °C
Min
Max
Unit
74HC_HCT164
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2020. All rights reserved
Product data sheet
Rev. 9 — 11 June 2020
5 / 17
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