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M74HCT157B1R bảng dữ liệu(PDF) 1 Page - STMicroelectronics |
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1 / 9 page 1/9 September 2001 s HIGH SPEED: tPD = 16ns (TYP.) at VCC = 4.5V s LOW POWER DISSIPATION: ICC = 4µA(MAX.) at TA=25°C s COMPATIBLE WITH TTL OUTPUTS : VIH = 2V (MIN.) VIL = 0.8V (MAX) s SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN) s BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 157 DESCRIPTION The M74HCT157 is an high speed CMOS QUAD 2 CHANNEL MULTIPLEXER fabricated with silicon gate C2MOS technology. This device consists of four 2-input digital multiplexer with common select and strobe inputs. When the STROBE(ST) input is held high, selection of data is inhibited and all the outputs become low. The SELECT decoding determines whether the A or B inputs get routed to their corresponding Y outputs. All inputs are equipped with protection circuits against static discharge and transient excess voltage. M74HCT157 QUAD 2 CHANNEL MULTIPLEXER PIN CONNECTION AND IEC LOGIC SYMBOLS ORDER CODES PACKAGE TUBE T & R DIP M74HCT157B1R SOP M74HCT157M1R M74HCT157RM13TR TSSOP M74HCT157TTR TSSOP DIP SOP |
Số phần tương tự - M74HCT157B1R |
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Mô tả tương tự - M74HCT157B1R |
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