74ALS245A-1 Datasheet | NXP Semiconductors

FEATURES - Octal bidirectional bus interface - 3-State buffer outputs sink 24m A and source 15m A - Outputs are placed in high impedance state during power-off conditions PIN CONFIGURATION T/R 1 A0 A1 A2 A3 2 3 4 5 6 7 8 9 20 VCC 19 OE 18 B0 17 B1 16 B2 15 B3 14 B4 13 B5 12 B6 11 B7 - The -1 version sinks 48m A DESCRIPTION The 74ALS245A is an octal transceiver featuring non-inverting 3-State bus patible outputs in both transmit and receive directions. The device features an output enable (OE) input for easy cascading and transmit/receive (R/T) input for direction control. The 74ALS245A-1 is the same as the 74ALS245A except that both ports sink 48m A within the ±5% VCC range. TYPICAL PROPAGATION DELAY 7.0ns 7.0ns TYPICAL SUPPLY CURRENT (TOTAL) 34m A 34m A 20-pin plastic DIP 20-pin plastic SOL 20-pin plastic SSOP Type II A4 A5 A6 A7 GND 10 SF00198 ORDERING INFORMATION ORDER CODE DESCRIPTION MERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C 74ALS245AN, 74ALS245A-1N 74ALS245AD, 744ALS245A-1D 74ALS245ADB, 74ALS245A-1DB DRAWING NUMBER TYPE 74ALS245A 74ALS245A-1 SOT146-1 SOT163-1 SOT339-1 INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS A0 - A7, B0 - B7 OE T/R A0 - A7 B0 - B7 A0 - A7 B0 - B7 DESCRIPTION Data inputs Output Enable input (active-Low) Transmit/receive input A port outputs B port outputs A port outputs (-1 version) B port outputs (-1 version) 74ALS (U.L.) HIGH/LOW 1.0/1.0 1.0/1.0 1.0/1.0 750/240 750/240 750/480 750/480 LOAD VALUE HIGH/LOW 20µA/0.1m A 20µA/0.1m A 20µA/0.1m A 15m A/24m A 15m A/24m A 15m A/48m 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. 1991 Jun 03 853- 0011 02709 Philips Semiconductors Product specification Octal transceiver (3-State) 74ALS245A/74ALS245A-1 LOGIC SYMBOL IEC/IEEE SYMBOL 19 G3 3EN1 [BA] 1 3EN2...