SN65LBC179A

www.ti.com SN65LBC179A SN75LBC179A SLLS377D – MAY 2000 – REVISED SEPTEMBER 2011 LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS Check for Samples: SN65LBC179A, SN75LBC179A FEATURES 1 2 High-Speed Low-Power LinBiCMOS™ Circuitry Designed for Signaling Rates(1) of up to 30 Mbps Bus-Pin ESD Protection Exceeds 12 kV HBM Very Low Disabled Supply-Current Requirements . . . 700 μA Max Common-Mode Voltage Range of –7 V to 12 V Low Supply Current . . .15 mA Max Compatible With ANSI Standard TIA/EAI-485-A and ISO8482: 1987(E) Positive and Negative Output Current Limiting Driver Thermal Shutdown Protection (1)Signaling rate by TIA/EIA-485-A definition restrict transition times to 30% of the bit length, and much higher signaling rates may be achieved without this requirement as displayed in the TYPICAL CHARACTERISTICS of this device. SN65LBC179AD (Marked as BL179A) SN65LBC179AP (Marked as 65LBC179A) SN75LBC179AD (Marked as LB179A) SN75LBC179AP (Marked as 75LBC179A) (TOP VIEW) VCC 1 R2 D3 GND 4 8A 7B 6Z 5Y LOGIC DIAGRAM (POSITIVE LOGIC) 2 R 8 A 7 B 3 D 5 Y 6 Z DESCRIPTION The SN65LBC179A and SN75LBC179A differential driver and receiver pairs are monolithic integrated circuits designed for bidirectional data communication over long cables that take on the characteristics of transmission lines. They are balanced, or differential, voltage mode devices that are compatible with ANSI standard TIA/EIA-485-A and ISO 8482:1987(E). The A version offers improved switch...