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74HC164DB Datasheet Preview

74HC164DB Datasheet

shift register

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74HC164; 74HCT164
8-bit serial-in, parallel-out shift register
Rev. 9 — 11 June 2020
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 VCC.
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 Name
74HC164D
-40 °C to +125 °C SO14
74HCT164D
74HC164DB -40 °C to +125 °C SSOP14
74HCT164DB
74HC164PW -40 °C to +125 °C TSSOP14
74HCT164PW
74HC164BQ -40 °C to +125 °C DHVQFN14
74HCT164BQ
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

74HC164DB Datasheet Preview

74HC164DB Datasheet

shift register

No Preview Available !

Nexperia
74HC164; 74HCT164
8-bit serial-in, parallel-out shift register
4. Functional diagram
DSA 1
DSB 2
CP
MR
Fig. 1. Logic symbol
3 Q0
4 Q1
5 Q2
6 Q3
10 Q4
8
11 Q5
12 Q6
9
13 Q7
001aac423
SRG8
8
C1/
9R
1
2
&
1D
3
4
5
6
10
11
12
13
001aac424
Fig. 2. IEC logic symbol
Fig. 3. Logic diagram
DSA
DSB
CP
MR
DQ
CP
FF1
RD
DSA 1
DSB 2
CP 8
MR 9
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
DQ
CP
FF2
RD
DQ
CP
FF3
RD
DQ
CP
FF4
RD
DQ
CP
FF5
RD
DQ
CP
FF6
RD
DQ
CP
FF7
RD
DQ
CP
FF8
RD
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
001aac616
Fig. 4. Functional diagram
74HC_HCT164
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 9 — 11 June 2020
© Nexperia B.V. 2020. All rights reserved
2 / 17


Part Number 74HC164DB
Description shift register
Maker nexperia
PDF Download

74HC164DB Datasheet PDF






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