SY100E137 counter equivalent, 8-bit ripple counter.
s 1.8GHz min. count frequency s Extended 100E VEE range of
–4.2V to
–5.5V s Synchronous and asynchronous enable pins s Differential clock .
The asynchronous enable input, A_Start, when asserted, enables the counter while overriding any synchronous enable sign.
The SY10/100E137 are very high speed binary ripple counters. The two least significant bits were designed with very fast edge rates, while the more significant bits maintain standard ECLinPS output edge rates. This allows the counters to operate at v.
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