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Shift Register/Latch. 74HC595 Datasheet

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Shift Register/Latch. 74HC595 Datasheet






74HC595 Register/Latch. Datasheet pdf. Equivalent




74HC595 Register/Latch. Datasheet pdf. Equivalent





Part

74HC595

Description

8-bit Shift Register/Latch



Feature


HD74HC595 8-bit Shift Register/Latch (wi th 3-state outputs) Description This d evice each contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. The storage register has parallel 3-state o utputs. Separate clocks are provided fo r both the shift register and the stora ge register. The shift register has a d irect-overriding c.
Manufacture

Hitachi

Datasheet
Download 74HC595 Datasheet


Hitachi 74HC595

74HC595; lear, serial input, and serial output pi ns for cascading. Both the shift regist er and storage register clocks are posi tive-edge triggered. If the user wishes to connect both clocks together, the s hift register state will always be one clock pulse ahead of the storage regist er. Features • • • • • High Speed Operation: tpd (RCK to Q) = 17 ns typ (C L = 50 pF) High Outp.


Hitachi 74HC595

ut Current: Fanout of 15 LSTTL Loads (QA to QH outputs) Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µ A max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Fun ction Table RCK X X X X SCK X X SCLR X L H H G H X X X Function QA to QH high impedance Shift register cleared QH ’ = L Shift register clocked Qn = Qn – 1, QA = SER Contents of .


Hitachi 74HC595

shift register transferred to output lat ches HD74HC595 Pin Arrangement QB 1 Q C 2 QD 3 QE 4 QF 5 QG 6 QH 7 GND 8 (Top view) 16 VCC 15 QA 14 SER 13 G 12 RCK 11 SCK 10 SCLR 9 QH' Absolute Maximum Ratings Item Supply voltage range Inpu t voltage Output voltage Output current DC current drain per VCC, GND DC input diode current DC output diode current Power dissipation .

Part

74HC595

Description

8-bit Shift Register/Latch



Feature


HD74HC595 8-bit Shift Register/Latch (wi th 3-state outputs) Description This d evice each contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. The storage register has parallel 3-state o utputs. Separate clocks are provided fo r both the shift register and the stora ge register. The shift register has a d irect-overriding c.
Manufacture

Hitachi

Datasheet
Download 74HC595 Datasheet




 74HC595
HD74HC595
8-bit Shift Register/Latch (with 3-state outputs)
Description
This device each contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage
register. The storage register has parallel 3-state outputs. Separate clocks are provided for both the shift
register and the storage register. The shift register has a direct-overriding clear, serial input, and serial
output pins for cascading.
Both the shift register and storage register clocks are positive-edge triggered. If the user wishes to connect
both clocks together, the shift register state will always be one clock pulse ahead of the storage register.
Features
High Speed Operation: tpd (RCK to Q) = 17 ns typ (CL = 50 pF)
High Output Current: Fanout of 15 LSTTL Loads (QA to QH outputs)
Wide Operating Voltage: VCC = 2 to 6 V
Low Input Current: 1 µA max
Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
Function Table
RCK
X
X
X
SCK
X
X
X
SCLR
X
L
H
H
G
H
X
X
X
Function
QA to QH high impedance
Shift register cleared QH’ = L
Shift register clocked Qn = Qn – 1, QA = SER
Contents of shift register transferred to output latches




 74HC595
HD74HC595
Pin Arrangement
QB 1
QC 2
QD 3
QE 4
QF 5
QG 6
QH 7
GND 8
(Top view)
16 VCC
15 QA
14 SER
13 G
12 RCK
11 SCK
10 SCLR
9 QH'
Absolute Maximum Ratings
Item
Supply voltage range
Input voltage
Output voltage
Output current
DC current drain per VCC, GND
DC input diode current
DC output diode current
Power dissipation per package
Storage Temperature
Symbol
VCC
VIN
VOUT
I OUT
ICC, IGND
I IK
I OK
PT
Tstg
Rating
–0.5 to +7.0
–0.5 to VCC + 0.5
–0.5 to VCC + 0.5
±35
±75
±20
±20
500
–65 to +150
Unit
V
V
V
mA
mA
mA
mA
mW
°C
2




 74HC595
Logic Diagram
G
RCK
SER
SCK
SCLR
DQ
R
DQ
R
DQ
R
DQ
R
DQ
R
DQ
R
DQ
R
DQ
R
D
D
D
D
D
D
D
D
HD74HC595
QA
QB
QC
QD
QE
QF
QG
QH
QH'
3



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