SY10/100E016 8-Bit Synchronous Binary Up Counter0 pages

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SY10E016
Micrel, Inc. SY100E016
M9999-032006
hbwhelp@micrel.com or (408) 955-1690
Pin Function
P0-P7 Parallel Data (Preset) Inputs
Q0-Q7 Data outputs
CE Count Enable Control Input
PE Parallel Load Enable Control Input
MR Master Reset
CLK Clock
TC Terminal Count Output
TCLD TC-Load Control Input
VCCO VCC to Output
700MHz min. count frequency
Extended 100E VEE range of –4.2V to –5.5V
1000ps CLK to Q, TC
Internal, gated TC feedback
8 bits wide
Fully synchronous counting and TC generation
Asynchronous Master Reset
Fully compatible with industry standard 10KH,
100K I/O levels
Internal 75KÙ input pulldown resistors
Fully compatible with Motorola MC10E/100E016
Available in 28-pin PLCC package
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.
8-BIT SYNCHRONOUS
BINARY UP COUNTER
SY10E016
SY100E016
FEATURES DESCRIPTION
PIN NAMES
Rev.: G Amendment: /0
Issue Date: March 2006