HD74LV157A Datasheet | Hitachi Semiconductor

Description The HD74LV157A has four 2-input digital multiplexers with mon select and strobe inputs. When the strobe input is low, a 4-bit word is selected from one of two sources and is routed to the four outputs. The device provides true data. Low-voltage and high-speed operation is suitable for the battery-powered products (e.g., notebook puters), and the low-power consumption extends the battery life. Features - - - - - - VCC = 2.0 V to 5.5 V operation All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V) All outputs VO (Max.) = 5.5 V (@VCC = 0 V) Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C) Typical VOH undershoot > 2.3 V (@VCC = 3.3 V, Ta = 25°C) Output current ±6 m A (@VCC = 3.0 V to 3.6 V), ±12 m A (@VCC = 4.5 V to 5.5 V) Function Table Inputs STB H L L L L Note: H: High level L: Low level X: Immaterial SEL X L L H H A X L H X X B X X X L H Output L L H L H Pin Arrangement SEL 1 1A 2 1B 3 1Y 4 2A 5 2B 6 2Y 7 GND 8 A S G B Y A B A B Y A 16 VCC 15 STB 14 4A 13 4B 12 4Y 11 3A 10 3B 9 3Y (Top view) Absolute Maximum Ratings Item Supply voltage range Input voltage range- 1 1, 2 Symbol VCC VI VO Ratings - 0.5 to 7.0 - 0.5 to 7.0 - 0.5 to VCC + 0.5 - 0.5 to 7.0 Unit V V V Conditions Output voltage range- Output: H or L VCC: OFF Input clamp current Output clamp current Continuous output current Continuous current through VCC or GND Maximum power dissipation at Ta = 25°C (in still air)- 3 I IK I OK IO I CC or IGND PT - 20 ±50 ±25 ±50 785 500 m A m A m A m A m W VI < 0 VO < 0 or VO > VCC VO = 0 to VCC SOP TSSOP Storage temperature Tstg - 65 to 150 °C Notes: 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 if the input and output clamp-current ratings are observed. 2. This value is limited to 5.5 V maximum. 3. The maximum package power dissipation was calculated...