PI74FCT238T Datasheet | Pericom Semiconductor

Features : - PI74FCT138/238T is pin patible with bipolar FAST™ Series at a higher speed and lower power consumption - TTL input and output levels - Extremely low static power - Hysteresis on all inputs - Industrial operating temperature range: - 40°C to +85°C - Packages available: - 16-pin 150 mil wide plastic QSOP (Q) - 16-pin 300 mil wide plastic SOIC (S) - 16-pin 150 mil wide plastic SOIC (W) Product Description : Peri Semiconductor’s PI74FCT series of logic circuits are produced in the pany’s advanced 0.8 micron CMOS technology, achieving industry leading speed grades. These high-speed decoders accept three binary weighted inputs (A0, A1, A2) and gives eight mutually exclusive active LOW outputs (O0-O7: PI74FCT138T) or active HIGH outputs (O0-O7: PI74FCT238T) when enabled. These devices contain three enable inputs, two active LOW (E1, E2) and one active HIGH (E3). On the PI74FCT138T all outputs will be HIGH and on the PI74FCT238T all outputs will be LOW, except when E1 and E2 are LOW and E3 is HIGH. Logic Block Diagram A2 A1 A0 E1 E 2 E 3 O7 O6 O5 O4 O3 O2 O1 O0 PI74FCT138T function shown. PS2004A 03/09/96 PI74FCT138/238T 1-OF-8 DECODER 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI74FCT138T Product Pin Configuration A0 A1 A2 E1 E2 E3 O7 GND 1 2 3 4 5 6 7 8 16 15 14 PI74FCT138T Product Pin Description Pin Name A0-A2 E1, E2 E3 O0-O7 Description Address Inputs Enable Inputs (Active LOW) Enable Input (Active HIGH) Outputs (Active LOW) 16-PIN Q16 13 S16 12 W16 11 10 9 VCC O0 O1 O2 O3 O4 O5 O6 PI74FCT138T Truth Table (1) E1 H X X L L L L L L L L E2 X H X L L L L L L L L Inputs E3 A0 X X X X L X H L H H H L H H H L H H H L H H A1 X X X L L H H L L H H A2 X X X L L L L H H H H O0 H H H L H H H H H H H O1 H H H H L H H H H H H O2 H H H H H L H H H H H Outputs O3 O4 H H H H H H H H H H H H L H H L H H H H H H O5 H H H H H H H H L H H O6 H H H H H H H H H L...