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74HCT595 Datasheet

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

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74HC595; 74HCT595
8-bit serial-in, serial or parallel-out shift register with output
latches; 3-state
Rev. 9 — 28 February 2017
Product data sheet
1 General description
The 74HC595; 74HCT595 is an 8-bit serial-in/serial or parallel-out shift register with a
storage register and 3-state outputs. Both the shift and storage register have separate
clocks. The device features a serial input (DS) and a serial output (Q7S) to enable
cascading and an asynchronous reset MR input. A LOW on MR will reset the shift
register. Data is shifted on the LOW-to-HIGH transitions of the SHCP input. The data in
the shift register is transferred to the storage register on a LOW-to-HIGH transition of
the STCP input. If both clocks are connected together, the shift register will always be
one clock pulse ahead of the storage register. Data in the storage register appears at
the output whenever the output enable input (OE) is LOW. A HIGH on OE causes the
outputs to assume a high-impedance OFF-state. Operation of the OE input does not
affect the state of the registers. 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
8-bit serial input
8-bit serial or parallel output
Storage register with 3-state outputs
Shift register with direct clear
100 MHz (typical) shift out frequency
Complies with JEDEC standard no. 7A
Input levels:
For 74HC595: CMOS level
For 74HCT595: TTL level
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 from -40 °C to +125 °C
3 Applications
Serial-to-parallel data conversion
Remote control holding register


NXP Semiconductors Electronic Components Datasheet

74HCT595 Datasheet

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

No Preview Available !

Nexperia
74HC595; 74HCT595
8-bit serial-in, serial or parallel-out shift register with output latches; 3-state
4 Ordering information
Table 1. Ordering information
Type number Package
Temperature
range
74HC595D
-40 °C to +125 °C
74HCT595D
74HC595DB -40 °C to +125 °C
74HCT595DB
74HC595PW -40 °C to +125 °C
74HCT595PW
74HC595BQ -40 °C to +125 °C
74HCT595BQ
Name
Description
Version
SO16
plastic small outline package; 16 leads;
body width 3.9 mm
SOT109-1
SSOP16
plastic shrink small outline package; 16 leads;
body width 5.3 mm
SOT338-1
TSSOP16
plastic thin shrink small outline package; 16 leads; SOT403-1
body width 4.4 mm
DHVQFN16
plastic dual in-line compatible thermal enhanced SOT763-1
very thin quad flat package; no leads; 16 terminals;
body 2.5 × 3.5 × 0.85 mm
5 Functional diagram
14 DS
11 SHCP
10 MR
12 STCP
8-STAGE SHIFT REGISTER
8-BIT STORAGE REGISTER
Q7S 9
Figure 1. Functional diagram
13 OE
3-STATE OUTPUTS
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
15 1 2 3 4 5 6 7 mna554
74HC_HCT595
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 9 — 28 February 2017
© Nexperia B.V. 2017. All rights reserved.
2 / 22


Part Number 74HCT595
Description 8-bit serial-in serial or parallel-out shift register
Maker NXP
Total Page 22 Pages
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