PI49FCT3805/PI49FCT3806 3.3V Fast CMOS Buffer/Clock Driver Features Description 3.3V version of PI49FCT805/806 Pericom Semiconductors PI49FCT3805 is a 3.3V non-inverting clock driver and the PI49FCT3806 is a 3.3V inverting clock Extremely low output skew: 0.5ns driver designed with two independent groups of buffers. These Monitor ouput pin buffers have 3-state Output Enable inputs (active LOW) with a Clock busing wih 3-state control 1-in, 5-out configuration per group. Each clock driver consist of two banks of drivers, driving five outputs each from a standard TTL input and CMOS output compatible TTL compatible CMOS input. Industrial operation at 40C to 85C Extremely low static power (1mW, typ.) Hysteresis on all inputs Packaging (Pb-free & Green available): 20-pin 150-mil wide QSOP (Q) 20-pin 209-mil wide SSOP (H) PI49FCT3805 Block Diagram PI49FCT3806 Block Diagram OE A OE A 5 5 OA IN 0-4 OA A IN 0-4 A 5 5 OB OB IN 0-4 IN 0-4 B B OE OE B B MON MON www.pericom.com PS7007L 07/23/10 1 11-0004PI49FCT3805/PI49FCT3806 3.3V Fast CMOS Buffer/Clock Driver Pin Description Pin Name Description OE , OE 3-State Output Enable Inputs (Active LOW) A B IN , IN Clock Inputs A B A , B Clock Outputs O N O N MON Monitor Output GND Ground V Power CC (1) PI49FCT3805 Pin Configuration PI49FCT3805 Truth Table Inputs Outputs V V A 1 20 V CCA CCCCB A B OE , OE IN , IN A , B MON GND 2 19 B9 A B A B O N O N O 0 O 0 A B B0 3 18 B8 O 1 O 1 L L L L A B V 4 17 GND OCC2 O 2 L H H H GND GND B1 5 16 B7 A B A B H L Z L GND 6 15 V O 3 OCC3 A B B2 7 14 B6 O 4 O 4 H H Z H Note: GND MON V 8 13 GND CCQ 1. H = High Voltage Level, L = Low Voltage Level OE OE B3 9 12 B5 A B Z = High Impedance IN IN GND 10 11 B4 A B (1) PI49FCT3806 Pin Configuration PI49FCT3806 Truth Table Inputs Outputs V V CCA CCB A 1 20 V CC OA OB OE , OE IN , IN OA , OB MON 0 0 A B A B N N GND 2 19 B9 OA OB 1 1 B0 3 18 B8 L L H H OA OB 2 2 VCC 4 17 GND L H L L GND GND A B B1 5 16 B7 OA OB GND3 6 15 V 3 H L Z H CC OA OB B42 7 14 B6 4 H H Z L Note: GND MON V Q 8 13 GND CC 1. H = High Voltage Level, L = Low Voltage Level, Z = High Impedance OE OE BA3 9 12 B5 B IN IN GNDA 10 11 B4 B Capacitance (T = 25C, f = 1 MHz) A (1) Parameters Description Test Conditions Typ Max. Units C Input Capacitance V = 0V 3.0 6.0 IN IN pF C Output Capacitance V = 0V 6.0 8.0 OUT OUT Note: 1. Th is parameter is determined by device characterization but is not production tested. www.pericom.com PS7007L 07/23/10 2 11-0004