74LS245 Datasheet Text
SN74LS245 Octal Bus Transceiver
The SN74LS245 is an Octal Bus Transmitter/Receiver designed for 8-line asynchronous 2-way data munication between data buses. Direction Input (DR) controls transmission of Data from bus A to bus B or bus B to bus A depending upon its logic level. The Enable input (E) can be used to isolate the buses. http://onsemi.
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Hysteresis Inputs to Improve Noise Immunity 2-Way Asynchronous Data Bus munication Input Diodes Limit High-Speed Termination Effects ESD > 3500 Volts
LOGIC AND CONNECTION DIAGRAMS DIP (TOP VIEW)
VCC 20 E 19 B1 18 B2 17 B3 16 B4 15 B5 14 B6 13 B7 12 B8 11
LOW POWER SCHOTTKY
20 1
1 DIR
2 A1
3 A2
4 A3
5 A4
6 A5
7 A6
8 A7
9 A8
10 GND
PLASTIC N SUFFIX CASE 738
TRUTH TABLE
INPUTS OUTPUT E L L H DIR L H X Bus B Data to Bus A Bus A Data to Bus B Isolation
20 1
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial
SOIC DW SUFFIX CASE 751D
GUARANTEED OPERATING RANGES
Symbol VCC TA IOH Parameter Supply Voltage Operating Ambient Temperature Range Output Current
- High Min 4.75 0 Typ 5.0 25 Max 5.25 70
- 3.0
- 15 IOL Output Current...
