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IC ghi dịch 74HC595

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74HC595; 74HCT595
8-bit serial-in, serial or parallel-out shift register with output
latches; 3-state
Rev. 6 — 12 December 2011

Product data sheet

1. General description
The 74HC595; 74HCT595 are high-speed Si-gate CMOS devices and are pin compatible
with Low-power Schottky TTL (LSTTL). They are specified in compliance with JEDEC
standard No. 7A.
The 74HC595; 74HCT595 are 8-stage serial shift registers with a storage register and
3-state outputs. The registers have separate clocks.
Data is shifted on the positive-going transitions of the shift register clock input (SHCP).
The data in each register is transferred to the storage register on a positive-going
transition of the storage register clock input (STCP). If both clocks are connected together,
the shift register will always be one clock pulse ahead of the storage register.
The shift register has a serial input (DS) and a serial standard output (Q7S) for cascading.
It is also provided with asynchronous reset (active LOW) for all 8 shift register stages. The
storage register has 8 parallel 3-state bus driver outputs. Data in the storage register
appears at the output whenever the output enable input (OE) is LOW.

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
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

74HC595; 74HCT595

NXP Semiconductors

8-bit serial-in, serial or parallel-out shift register with output latches;
3-state

4. Ordering information
Table 1.

Ordering information

Type number
74HC595N

Package
Temperature range

Name

Description

Version

40 C to +125 C

DIP16

plastic dual in-line package; 16 leads (300 mil)

SOT38-4

40 C to +125 C

SO16

plastic small outline package; 16 leads;
body width 3.9 mm

SOT109-1

40 C to +125 C

SSOP16

plastic shrink small outline package; 16 leads;
body width 5.3 mm

SOT338-1

40 C to +125 C

TSSOP16

plastic thin shrink small outline package; 16 leads;
body width 4.4 mm

SOT403-1

40 C to +125 C

DHVQFN16

plastic dual in-line compatible thermal enhanced
very thin quad flat package; no leads; 16 terminals;
body 2.5  3.5  0.85 mm

SOT763-1

74HCT595N
74HC595D
74HCT595D
74HC595D...
1. General description
The 74HC595; 74HCT595 are high-speed Si-gate CMOS devices and are pin compatible
with Low-power Schottky TTL (LSTTL). They are specified in compliance with JEDEC
standard No. 7A.
The 74HC595; 74HCT595 are 8-stage serial shift registers with a storage register and
3-state outputs. The registers have separate clocks.
Data is shifted on the positive-going transitions of the shift register clock input (SHCP).
The data in each register is transferred to the storage register on a positive-going
transition of the storage register clock input (STCP). If both clocks are connected together,
the shift register will always be one clock pulse ahead of the storage register.
The shift register has a serial input (DS) and a serial standard output (Q7S) for cascading.
It is also provided with asynchronous reset (active LOW) for all 8 shift register stages. The
storage register has 8 parallel 3-state bus driver outputs. Data in the storage register
appears at the output whenever the output enable input (OE
) is LOW.
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
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
74HC595; 74HCT595
8-bit serial-in, serial or parallel-out shift register with output
latches; 3-state
Rev. 6 — 12 December 2011 Product data sheet
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IC ghi dịch 74HC595 9 10 973