SY100E141(1998) View Datasheet(PDF) - Micrel
Part Name
Description
Manufacturer
SY100E141 Datasheet PDF : 4 Pages
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8-BIT SHIFT
REGISTER
SY10E141
SY100E141
FEATURES
s 700MHz min. shift frequency
s Extended 100E VEE range of –4.2V to –5.5V
s 8 bits wide
s Bi-directional
s Four selectable modes for full functionality
s Asynchronous Master Reset
s Fully compatible with industry standard 10KH,
100K ECL levels
s Internal 75KΩ input pulldown resistors
s Fully compatible with Motorola MC10E/100E141
s Pin-compatible with E241
s Available in 28-pin PLCC package
DESCRIPTION
The SY10/100E141 are 8-bit, full-function shift registers
designed for use in new, high-performance ECL systems.
The E141 performs serial/parallel in and serial/parallel out,
shifting in either direction. The eight inputs D0–D7 accept
parallel input data, while DL/DR accept serial input data for
left/right shifting.
The two select pins, SEL0 and SEL1 permit four modes
of operation: Load, Hold, Shift Left and Shift Right, as
shown in the Truth Table. Input data is clocked into the
register on the rising clock edge after meeting the minimum
set-up time. A logic HIGH on the Master Reset (MR) pin
asynchronously resets all the registers to zero.
BLOCK DIAGRAM
DR
D0
SEL1
SEL0
CLK
MR
DQ
R
Q0
D
DL
BITS 1-6
DQ
R
Q
D7
DQ
R
Q7
Rev.: C
Amendment: /1
1
Issue Date: February, 1998
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