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SN75ALS126 Datasheet(PDF) 1 Page - Texas Instruments |
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SN75ALS126 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 7 page  SN75ALS126 QUADRUPLE LINE DRIVER SLLS016C – FEBRUARY 1986 – REVISED FEBRUARY 1993 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Meets IBM 360/370 I/O Interface Specification GA22-6974-3 (Also See SN75ALS130) D Minimum Output Voltage of 3.11 V at IOH = –60 mA D Fault-Flag Circuit Output Signals Driver Output Fault D Fault-Detection Current Limit Circuit Minimizes Power Dissipation During a Fault Condition D Advanced Low-Power Schottky Circuitry D Dual Common Enable D Individual Fault Flags D Designed to Be an Improved Replacement for the MC3481 description The SN75ALS126 quadruple line driver is designed to meet the IBM 360/370 I/O specification GA22-6974-3. The output voltage is 3.11 V minimum (at IOH = – 59.3 mA) over the recommended ranges of supply voltage (4.5 V to 5.95 V) and temperature. Driver outputs use a fault-detection current-limit circuit to allow high drive current but still minimize power dissipation when the output is shorted to ground. The SN75ALS126 is compatible with standard T TL logic and supply voltages. The SN75ALS126 employs the IMPACT ™ process to achieve fast switching speeds and low power dissipation. Fault-flag circuitry is designed to sense and signal a line short on any Y line. Upon detecting an output fault condition, the fault-flag circuit forces the driver output into a low state and signals a fault condition by causing the fault-flag output to go low. The SN75ALS126 can drive a 50- Ω load as required in the IBM GA22-6974-3 specification or a 90-Ω load as used in many I/O systems. Optimum performance can be achieved when the device is used with either the SN75127, SN75128, or SN75129 line receivers. The SN75ALS126 is characterized for operation from 0 °C to 70°C. IMPACT is a trademark of Texas Instruments Incorporated Copyright © 1993, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. D OR N PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1Y 1F 1A 1,2G 2A 2F 2Y GND VCC 4Y 4F 4A 3,4G 3A 3F 3Y INPUTS L H H FUNCTION TABLE H = high level, L = low level, X = irrelevant, S = shorted to GND X H H L H S H H L GA Y F OUTPUTS |
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