PI74FCT16827T

• PI74FCT16827T, PI74FCT162827T, and PI74FCT2H827T are high-speed, low power devices with high current drive
• VCC = 5V ±10%
• Hysteresis on all inputs
• Packages available: 56-pin 240 mil wide plastic TSSOP (A) 56-pin 300 mil wide plastic SSOP (V)
• High output drive: IOH = 32 mA; IOL = 64 mA
• Power off disable outputs permit "live insertion"
• Typical VOLP (Output Ground Bounce) < 1.0V at VCC = 5V, TA = 25°C

Storage Temperature .................................................................... 65°C to +150°C
Ambient Temperature with Power Applied .................................... 40°C to +85°C
Supply Voltage to Ground Potential (Inputs & Vcc Only) .............. 0.5V to +7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) ........... 0.5V to +7.0V
DC Input Voltage ............................................................................ 0.5V to +7.0V
DC Output Current ..................................................................................... 120 mA
Power Dissipation ..........................................................................................1.0W

Note:
Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

Pericom Semiconductor's PI74FCT series of logic circuits are produced in the Company's advanced 0.6 micron CMOS technology, achieving industry leading speed grades.

The PI74FCT16827T, PI74FCT162827T, and PI74FCT162H827T are 20-bit wide bus drivers designed to provide buffering and highperformance bus interfacing for wide data/address paths or buses with parity. Two pair of nanded output enable controls allow the PI74FCT16827T, PI74FCT162827T, and PI74FCT162H827T to be operated as two 10-bit buffers or as one 20-bit buffer. Signal pins are arranged in a flow-through organization for ease of layout and hysteresis is designed into all inputs to improve noise margin.

The PI74FCT16827T output buffers are designed with a Power-Off disable function allowing "live insertion" of boards when the devices are used as backplane drives.

The PI74FCT162827T has ±24 mA balanced output drivers. PI74FCT16827T, PI74FCT162827T, and PI74FCT162H827T are designed with current limiting resistors at its outputs to control the output edge rate resulting in lower ground bounce and undershoot. This eliminates the need for external terminating resistors for most interface applications.

The PI74FCT162H827T has "Bus Hold" which retains the input's last state whenever the input goes to high-impedance preventing "floating" inputs and eliminating the need for pull-up/down resistors