MC74VHC257 Datasheet | onsemi

Quad 2-Channel Multiplexer with 3-State Outputs The MC74VHC257 is an advanced high speed CMOS quad 2- channel multiplexer fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. It consists of four 2- input digital multiplexers with mon select (S) and enable (OE) inputs. When (OE) is held High, selection of data is inhibited and all the outputs go Low. The select decoding determines whether the A or B inputs get routed to the corresponding Y outputs. The inputs tolerate voltages up to 7 V, allowing the interface of 5 V systems to 3 V systems. - High Speed: t PD = 4.1 ns (Typ) at VCC = 5.0 V - Low Power Dissipation: ICC = 4.0 m A (Max) at TA = 25°C - High Noise Immunity: VNIH = VNIL = 28% VCC - Power Down Protection Provided on Inputs - Balanced Propagation Delays - Designed for 2.0 V to 5.5 V Operating Range - Low Noise: VOLP = 0.8 V (Max) - Pin and Function patible with Other Standard Logic Families - Latchup Performance Exceeds 300 m A - ESD Performance: HBM > 2000 V; Machine Model > 200 V - Chip plexity: FETs = 100; Equivalent Gates = 25 - These Devices are Pb- Free and are Ro HS pliant http://onsemi. MARKING DIAGRAMS SO- 16 D SUFFIX CASE 751B VHC257G AWLYWW TSSOP- 16 DT SUFFIX CASE 948F VHC 257 ALYWG G 1 8 = Assembly Location L, WL = Wafer Lot Y, YY = Year W, WW = Work Week G or G = Pb- Free Package S1 A0 2 B0 3 Y0 4 A1 5 B1 6 Y1 7 GND 8 16 VCC 15 OE 14 A3 13 B3 12 Y3 11 A2 10 B2 9 Y2 ORDERING INFORMATION Device Package...