General Description
These synchronous presettable counters feature an internal carry look ahead for cascading in high speed counting applications. The DM74ALS169B is a four-bit binary up/down counter.

Features
■ Switching specifications at 50 pF
■ Switching specifications guaranteed over full
   temperature and VCC range
■ Advanced oxide-isolated, ion-implanted Schottky TTL
   process
■ Functionally and pin-for-pin compatible with Schottky
   and low power Schottky TTL counterpart
■ Improved AC performance over Schottky and low power
   Schottky counterparts
■ Synchronously programmable
■ Internal look ahead for fast counting
■ Carry output for n-bit cascading
■ Synchronous counting
■ ESD inputs