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1 / 8 page © Semiconductor Components Industries, LLC, 2014 September, 2014 − Rev. 7 1 Publication Order Number: MC74VHC125/D MC74VHC125 Quad Bus Buffer with 3−State Control Inputs The MC74VHC125 is a high speed CMOS quad bus buffer fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. The MC74VHC125 requires the 3−state control input (OE) to be set High to place the output into the high impedance state. The internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output. The inputs tolerate voltages up to 7 V, allowing the interface of 5 V systems to 3 V systems. Features • High Speed: tPD = 3.8ns (Typ) at VCC = 5 V • Low Power Dissipation: ICC = 4 mA (Max) at TA = 25°C • High Noise Immunity: VNIH = VNIL = 28% VCC • Power Down Protection Provided on Inputs • Balanced Propagation Delays • Designed for 2 V to 5.5 V Operating Range • Low Noise: VOLP = 0.8 V (Max) • Pin and Function Compatible with Other Standard Logic Families • Latchup Performance Exceeds 300 mA • ESD Performance: Human Body Model; > 2000 V, Machine Model; > 200 V • Chip Complexity: 72 FETs or 18 Equivalent Gates • These Devices are Pb−Free and are RoHS Compliant LOGIC DIAGRAM Active−Low Output Enables Y1 Y2 Y4 3 6 8 11 13 12 10 9 4 5 1 2 A1 OE1 A2 OE2 A3 OE3 A4 OE4 Y3 FUNCTION TABLE VHC125 Inputs Output AOE Y HL H LL L XH Z 14−LEAD SOIC D SUFFIX CASE 751A 14−LEAD TSSOP DT SUFFIX CASE 948G PIN CONNECTION AND MARKING DIAGRAM (Top View) 11 12 13 14 8 9 10 5 4 3 2 1 7 6 OE3 Y4 A4 OE4 VCC Y3 A3 OE2 Y1 A1 OE1 GND Y2 A2 http://onsemi.com See general marking information in the device marking section on page 6 of this data sheet. DEVICE MARKING INFORMATION Device Package Shipping† ORDERING INFORMATION MC74VHC125DG SOIC−14 (Pb−Free) 55 Units / Rail MC74VHC125DTR2G TSSOP−14 (Pb−Free) 2500 / Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. MC74VHC125DR2G SOIC−14 (Pb−Free) 2500 / Tape & Reel |
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