SY100S355_07 Datasheet, PDF (1/6 Pages) Micrel Semiconductor – QUAD MULTIPLEXER/LATCH

Micrel, Inc.
QUAD
MULTIPLEXER/LATCH
SY100S355
SY100S355
FEATURES
DESCRIPTION
s Max. propagation delay of 1100ps
s Max. enable to output delay of 1400ps
s IEE min. of –80mA
s Industry standard 100K ECL levels
s Extended supply voltage option:
VEE = –4.2V to –5.5V
s Voltage and temperature compensation for improved
noise immunity
s Internal 75kΩ input pull-down resistors
s 50% faster than Fairchild
s Function and pinout compatible with Fairchild F100K
s Available in 28-pin PLCC package
The SY100S355 offers four transparent latches with
differential outputs and is designed for use in high-
performance ECL systems. The Select inputs (S0, S1)
select one of the two sources of input data (D0 or D1) to the
latch. The Select inputs can also force the outputs to a logic
LOW when the latch is in the transparent mode. The
latches are in the transparent mode when both Enables
(E1, E2) are at a logic LOW state. In the transparent mode,
the Select inputs can pass an input logic HIGH from D0 or
D1 to the output.
If the Select inputs are tied together, then input data
from either D0 or D1 is always passed through. A rising
edge on either Enable input will latch the outputs with the
most recent data at the latch inputs being stored. The
Master Reset (MR) input overrides all other inputs and
takes the Q outputs to a logic LOW. The inputs on this
device have 75kΩ pull-down resistors.
BLOCK DIAGRAM
S0
S1
D0a
DQ
Qa
D1a
E
Qa
CD
D0b
DQ
Qb
D1b
E
Qb
CD
D0c
DQ
Qc
D1c
E
Qc
CD
D0d
DQ
Qd
D1d
E1
E
Qd
CD
E2
MR
M9999-042307
[e-mail] or [phone]
1
Rev.: I
Amendment: /0
Issue Date: April 2007