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DESCRIPTION

The SY10/100E446 are integrated 4-bit parallel-to-serial data converters. These devices are designed to operate for NRZ data rates of up to a minimum of 1.3Gb/s. The chips generate a divide-by-4 and a divide-by-8 clock for both 4-bit conversion and a two-chip 8-bit conversion function. The conversion sequence was chosen to convert the parallel data into a serial stream from bit D0 to D3. A serial input is provided to cascade two E446 devices for 8-bit conversion applications.

FEATURES

■ On-chip clock ÷4 and ÷8

■ Extended 100E VEE range of –4.2V to –5.5V

■ 1.6Gb/s typical data rate capability

■ Differential clock and serial inputs

■ VBB output for single-ended use

■ Asynchronous data synchronization

■ Mode select to expand to 8 bits

■ Internal 75K? input pulldown resistors

■ Fully compatible with Motorola MC10E/100E446

■ Available in 28-pin PLCC package