SY10E016 Datasheet, PDF (1/10 Pages) Micrel Semiconductor – 8-BIT SYNCHRONOUS BINARY UP COUNTER

Micrel, Inc.
8-BIT SYNCHRONOUS
BINARY UP COUNTER
SY10E016
SY1^S0^YE¹⁰0⁰1^E6⁰¹⁶
SY100E016
FEATURES
s 700MHz min. count frequency
s Extended 100E VEE range of –4.2V to –5.5V
s 1000ps CLK to Q, TC
s Internal, gated TC feedback
s 8 bits wide
s Fully synchronous counting and TC generation
s Asynchronous Master Reset
s Fully compatible with industry standard 10KH,
100K I/O levels
s Internal 75KΩ input pulldown resistors
s Fully compatible with Motorola MC10E/100E016
s Available in 28-pin PLCC package
DESCRIPTION
The SY10/100E016 are high-speed synchronous,
presettable and cascadable 8-bit binary counters designed
for use in new, high-performance ECL systems. Architecture
and operation are the same as the Motorola MC10H016 in
the MECL 10KH family, extended to 8 bits, as shown in the
logic diagram.
The counters feature internal feedback of TC, gated by
the TCLD (terminal count load) pin. When TCLD is LOW,
the TC feedback is disabled and counting proceeds
continuously, with TC going LOW to indicate an all-HlGH
state. When TCLD is HIGH, the TC feedback causes the
counter to automatically reload upon TC = LOW, thus
functioning as a programmable counter.
PIN NAMES
Pin
P0-P7
Q0-Q7
CE
PE
MR
CLK
TC
TCLD
VCCO
Function
Parallel Data (Preset) Inputs
Data outputs
Count Enable Control Input
Parallel Load Enable Control Input
Master Reset
Clock
Terminal Count Output
TC-Load Control Input
VCC to Output
M9999-032006
[e-mail] or [phone]
1
Rev.: G Amendment: /0
Issue Date: March 2006