link to page 4 MC74VHC1GT50 Noninverting Buffer / CMOS Logic Level Shifter TTL−Compatible Inputs The MC74VHC1GT50 is a single gate noninverting buffer fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. www.onsemi.com The internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output. MARKING The device input is compatible with TTL−type input thresholds and DIAGRAMS the output has a full 5 V CMOS level output swing. The input protection 5 5 circuitry on this device allows overvoltage tolerance on the input, M allowing the device to be used as a logic−level translator from 3 V 1 VL M G G CMOS logic to 5 V CMOS Logic or from 1.8 V CMOS logic to 3 V SC−88A / SOT−353 / SC−70 CMOS Logic while operating at the high−voltage power supply. DF SUFFIX 1 The MC74VHC1GT50 input structure provides protection when CASE 419A voltages up to 7 V are applied, regardless of the supply voltage. This allows the MC74VHC1GT50 to be used to interface high voltage to 5 low voltage circuits. The output structures also provide protection 5 VL M G when VCC = 0 V. These input and output structures help prevent G device destruction caused by supply voltage − input/output voltage 1 1 mismatch, battery backup, hot insertion, etc. TSOP−5 / SOT−23 / SC−59DT SUFFIXFeatures • CASE 483 Designed for 1.65 V to 5.5 VCC Operation • High Speed: tPD = 3.5 ns (Typ) at VCC = 5 V VL = Device Code • Low Power Dissipation: ICC = 1 mA (Max) at TA = 25°C M = Date Code* • G = Pb−Free Package TTL−Compatible Inputs: VIL = 0.8 V; VIH = 2.0 V, VCC = 5 V • (Note: Microdot may be in either location) CMOS−Compatible Outputs: VOH > 0.8 VCC; VOL < 0.1 VCC @Load *Date Code orientation and/or position may vary • Power Down Protection Provided on Inputs and Outputs depending upon manufacturing location. • Balanced Propagation Delays • Pin and Function Compatible with Other Standard Logic Families • Chip Complexity: FETs = 104; Equivalent
