SY100S336JC

The SY100S336JC from Microchip Technology is a versatile 4-stage counter or bidirectional shift register, engineered for high-performance ECL systems. It features a maximum shift frequency of 700MHz and a clock-to-Q delay of 1100ps.

This device supports multiple operating modes, selectable via three select inputs (S0-S2). It includes two count enable controls (CEP, CET) for cascading multistage counters. The CET input also serves as the serial data input for shift-up operations, while the D3 input is used for shift-down operations. The Terminal Count (TC) output indicates when the count reaches 15 (up) or 0 (down) in counting mode, or mirrors the Q3 output in shift mode.

With internal 75KΩ input pull-down resistors and industry-standard 100K ECL levels, the SY100S336JC offers improved noise immunity through voltage and temperature compensation. It is compatible with Fairchild F100K devices in function and pinout. The device is available in a 28-pin PLCC package suitable for surface mounting.

Key electrical characteristics include an extended supply voltage option from -4.2V to -5.5V and a minimum supply current of -170mA. Individual presets (P0-P3) allow for counter initialization, and a master reset (MR) input overrides all other inputs for asynchronous clearing.