74ALS241A-1 Datasheet | NXP Semiconductors

FEATURES - Octal bus interface - 3-State buffer outputs sink 24m A and source 15m A - The -1 version sinks 48 m A DESCRIPTION The 74ALS241A is an octal buffer that is ideal for driving bus lines or buffer memory address registers. The outputs are all capable of sinking 24m A and sourcing up to 15m A, producing very good capacitive drive characteristics. The device features two output enables, OEa and OEb, each controlling four of the 3-State outputs. The 74ALS241A-1 sinks 48m A IOL if the VCC is limited to 5.0V ±0.25V. TYPICAL PROPAGATION DELAY 4.5ns 4.5ns TYPICAL SUPPLY CURRENT (TOTAL) 18m A 18m A PIN CONFIGURATION OEa Ia0 Yb0 Ia1 Yb1 Ia2 Yb2 Ia3 Yb3 GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VCC OEb Ya0 Ib0 Ya1 Ib1 Ya2 Ib2 Ya3 Ib3 SF00324 ORDERING INFORMATION ORDER CODE DESCRIPTION MERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C 74ALS241AN, 74ALS241A-1N 74ALS241AD, 74ALS241A-1D 74ALS241ADB, 74ALS241A-1DB DRAWING NUMBER TYPE 74ALS241A 74ALS241A-1 20-pin plastic DIP 20-pin plastic SOL 20-pin plastic SSOP Type II SOT146-1 SOT163-1 SOT339-1 INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS Ian, Ibn OEa, OEb Yan, Ybn Yan, Ybn Data inputs Output Enable inputs (active-Low) Data outputs Data outputs (-1 version) DESCRIPTION 74ALS (U.L.) HIGH/LOW 1.0/1.0 1.0/1.0 750/240 750/480 LOAD VALUE HIGH/LOW 20µA/0.1m A 20µA/0.1m A 15m A/24m A 15m A/48m A NOTE: One (1.0) ALS unit load is defined as: 20µA in the High state and 0.1m A in the Low state. LOGIC SYMBOL 2 4 6 8 17 15 13 11 IEC/IEEE SYMBOL 1 19 EN1 EN2 18 16 14 12 2 3 5 7 9 Ia0 1 19 OEa OEb Ia1 Ia2 Ia3 Ib0 Ib1 Ib2 Ib3 2 4 6 8 2D Ya0 Ya1 Ya2 Ya3 Yb0 Yb1 Yb2 Yb3 17 15 18 VCC = Pin 20 GND = Pin...