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MM74HC589 Datasheet(PDF) 1 Page - Fairchild Semiconductor

Part No. MM74HC589
Description  8-Bit Shift Registers with Input Latches and 3-STATE Serial Output
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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MM74HC589 Datasheet(HTML) 1 Page - Fairchild Semiconductor

   
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© 2001 Fairchild Semiconductor Corporation
DS005368
www.fairchildsemi.com
September 1983
Revised September 2001
MM74HC589
8-Bit Shift Registers
with Input Latches and 3-STATE Serial Output
General Description
The
MM74HC589
high
speed
shift
register
utilizes
advanced silicon-gate CMOS technology to achieve the
high noise immunity and low power consumption of stan-
dard CMOS integrated circuits, as well as the ability to
drive 15 LS-TTL loads.
The MM74HC589 comes in a 16-pin package and consists
of an 8-bit storage latch feeding a parallel-in, serial-out 8-
bit shift register. Data can also be entered serially the shift
register through the SER pin. Both the storage register and
shift register have positive-edge triggered clocks, RCK and
SCK, respectively. SLOAD pin controls parallel LOAD or
serial shift operations for the shift register. The shift register
has a 3-STATE output to enable the wire-ORing of multiple
devices on a serial bus.
The 74HC logic family is speed, function, and pin-out com-
patible with the standard 74LS logic family. All inputs are
protected from damage due to static discharge by internal
diode clamps to VCC and ground.
Features
s 8-bit parallel storage register inputs
s Wide operating voltage range: 2V–6V
s Shift register has direct overriding load
s Guaranteed shift frequency. . . DC to 30 MHz
s Low quiescent current: 80
µA maximum (74HC Series)
s 3-STATE output for ‘Wire-OR'
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Top View
Truth Table
Order Number
Package Number
Package Description
MM74HC589M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
MM74HC589SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MM74HC589N
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
RCK
SCK SLOAD OE
Function
XX
X
H
QH in Hi-Z State
XX
X
L
QH is enabled
X
X
X
Data loaded into input latches
X
L
X
Data loaded into shift register
from pins
H or L
X
L
X
Data loaded from latches to
shift register
X
H
X
Shift register is shifted. Data
on SER pin is shifted in.
↑↑
H
X
Data is shifted in shift register,
and data is loaded into latches


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