HD74CBT3257 Datasheet | Hitachi Semiconductor

Description The HD74CBT3257 is a 4-bit 1-of-2 high-speed TTL-patible FET multiplexer / demultiplexer. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. Output enable (OE) and select control (S) inputs select the appropriate B1 and B2 outputs for the A-input data. Features - Minimal propagation delay through the switch. - 5 Ω switch connection between two ports. - TTL-patible input levels. - Ultra low quiescent power. -Ideally suited for notebook applications. - Package type Product code example: HD74CBT3257TELL Package type TSSOP-16pin Package code TTP-16DA Package suffix T Taping code ELL(2000pcs / Reel) Notes: 1. As for the Pb-free package is attached the “V” to the end of package code. 2. As for the Pb-free product is attached the “- E” to the end of product code. Function Table Inputs OE L L H H: L: X: High level Low level Immaterial S L H X Function A port = B1 port A port = B2 port Disconnect Pin Arrangement S 1B1 1B2 1A 2B1 2B2 2A GND 1 2 3 4 5 6 7 8 16 VCC 15 OE 14 4B1 13 4B2 12 4A 11 3B1 10 3B2 9 3A (Top view) Rev.2, Nov. 2001, page 2 of 11 Absolute Maximum Ratings Item Supply voltage range Input voltage range Input clamp current Continuous output current Continuous current through VCC or GND Maximum power dissipation - 2 at Ta = 25°C (in still air) Storage temperature Notes: - 1 Symbol VCC VI IIK IO ICC or IGND PT Tstg Ratings - 0.5 to 7.0 - 0.5 to 7.0 - 50 128 ±100 500 - 65 to 150 Unit V V m A m A m A m W °C Conditions VI < 0 VO = 0 to VCC TSSOP The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. 1. The input and output voltage ratings may be exceeded even if the input and output clamp-current ratings are observed. 2. The maximum package power dissipation was calculated using a junction temperature of 150°C. Remended Operating Conditions Item Supply voltage range Input voltage...