Product Summary

The SN74LS245NSR octal bus transceiver is designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. The SN74LS245NSR allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can disable the SN74LS245NSR so that the buses are effectively isolated.

Parametrics

SN74LS245NSR absolute maximum ratings: (1)Supply voltage, VCC: 7 V; (2)Input voltage, VI: 7 V; (3)Package thermal impedance, JA: DB package: 70℃/W, DW package: 58℃/W, N package: 69℃/W, NS package: 60℃/W; (4)Storage temperature range, Tstg: -65℃ to 150℃.

Features

SN74LS245NSR features: (1)3-State Outputs Drive Bus Lines Directly; (2)PNP Inputs Reduce dc Loading on Bus Lines; (3)Hysteresis at Bus Inputs Improves Noise Margins; (4)Typical Propagation Delay Times Port to Port, 8 ns.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
SN74LS245NSR
SN74LS245NSR

Texas Instruments

Bus Transceivers Octal bus Transceiver

Data Sheet

0-1: $0.49
1-25: $0.44
25-100: $0.39
100-250: $0.34
SN74LS245NSRE4
SN74LS245NSRE4

Texas Instruments

Bus Transceivers Octal bus Transceiver

Data Sheet

0-1: $0.49
1-25: $0.40
25-100: $0.36
100-250: $0.32
SN74LS245NSRG4
SN74LS245NSRG4

Texas Instruments

Bus Transceivers Octal bus Transceiver

Data Sheet

0-1400: $0.23
1400-2000: $0.21
2000-5000: $0.21
5000-10000: $0.20