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M74HC161 数据表(PDF) 1 Page - STMicroelectronics |
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M74HC161 数据表(HTML) 1 Page - STMicroelectronics |
1 / 12 page 1/12 July 2001 s HIGH SPEED : fMAX = 62 MHz (TYP.) at VCC = 6V s LOW POWER DISSIPATION: ICC =4µA(MAX.) at TA=25°C s HIGH NOISE IMMUNITY: VNIH = VNIL = 28 % VCC (MIN.) s SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN) s BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL s WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 161 DESCRIPTION The M74HC161 is an high speed CMOS SYNCHRONOUS 4-BIT BINARY PRESETTABLE COUNTER fabricated with silicon gate C2MOS technology. The CLOCK input is active on the rising edge. Both LOAD and CLEAR inputs are active LOW. Presetting is synchronous on the rising edge of the clock, the function is cleared asynchronously. Two enable inputs (TE and PE) and CARRY output are provided to enable easy cascading of counters, which facilities easy implementation of N-bit counters without using external gates. All inputs are equipped with protection circuits against static discharge and transient excess voltage. M74HC161 SYNCHRONOUS PRESETTABLE 4-BIT COUNTER PIN CONNECTION AND IEC LOGIC SYMBOLS ORDER CODES PACKAGE TUBE T & R DIP M74HC161B1R SOP M74HC161M1R M74HC161RM13TR TSSOP M74HC161TTR TSSOP DIP SOP |
类似零件编号 - M74HC161 |
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类似说明 - M74HC161 |
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