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74AHCT164BQ Datasheet Preview

74AHCT164BQ Datasheet

8-bit serial-in/parallel-out shift register

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74AHC164; 74AHCT164
8-bit serial-in/parallel-out shift register
Rev. 4 — 11 June 2020
Product data sheet
1. General description
The 74AHC164; 74AHCT164 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 are overvoltage tolerant. This feature allows the use of these devices as translators
in mixed voltage environments.
2. Features
Wide supply voltage range from 2.0 V to 5.5 V
Overvoltage tolerant inputs to 5.5 V
High noise immunity
CMOS low power dissipation
Balanced propagation delays
All inputs have Schmitt-trigger actions
Input levels:
For 74AHC164: CMOS level
For 74AHCT164: TTL level
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
CDM JESD22-C101C exceeds 1000 V
Latch-up performance exceeds 100 mA per JESD 78 Class II Level A
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range Name
Description
74AHC164D
74AHCT164D
-40 °C to +125 °C SO14
plastic small outline package; 14 leads;
body width 3.9 mm
74AHC164PW
74AHCT164PW
-40 °C to +125 °C TSSOP14 plastic thin shrink small outline package;
14 leads; body width 4.4 mm
74AHC164BQ
74AHCT164BQ
-40 °C to +125 °C
DHVQFN14 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
SOT402-1
SOT762-1




nexperia

74AHCT164BQ Datasheet Preview

74AHCT164BQ Datasheet

8-bit serial-in/parallel-out shift register

No Preview Available !

Nexperia
74AHC164; 74AHCT164
8-bit serial-in/parallel-out shift register
4. Functional diagram
Fig. 1. Functional diagram
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
DSA 1
DSB 2
CP
MR
Fig. 2. 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. 3. IEC logic symbol
DSA
DSB
CP
MR
DQ
CP
FF1
RD
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. Logic diagram
74AHC_AHCT164
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 11 June 2020
© Nexperia B.V. 2020. All rights reserved
2 / 16


Part Number 74AHCT164BQ
Description 8-bit serial-in/parallel-out shift register
Maker nexperia
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