器件名称:
M74HC273M1R
功能描述:
OCTAL D TYPE FLIP FLOP WITH CLEAR
文件大小:
261.69KB 共11页
简 介:
M74HC273 OCTAL D TYPE FLIP FLOP WITH CLEAR s s s s s s s HIGH SPEED : fMAX = 66 MHz (TYP.) at VCC = 6V LOW POWER DISSIPATION: ICC =4A(MAX.) at TA=25°C HIGH NOISE IMMUNITY: VNIH = V NIL = 28 % VCC (MIN.) SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN) BALANCED PROPAGATION DELAYS: tPLH tPHL WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 273 DIP SOP TSSOP ORDER CODES PACKAGE DIP SOP TSSOP TUBE M74HC273B1R M74HC273M1R T&R M74HC273RM13TR M74HC273TTR DESCRIPTION The M74HC273 is an high speed CMOS OCTAL D TYPE FLIP FLOP WITH CLEAR fabricated with silicon gate C2MOS technology. Information signals applied to D inputs are transferred to the Q outputs on the positive-going edge of the clock pulse. When the CLEAR input is held low, the Q output are in the low logic level independent of the other inputs. All inputs are equipped with protection circuits against static discharge and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/11 M74HC273 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1 2, 5, 6, 9, 12, 15, 16, 19 3, 4, 7, 8, 13, 14, 17, 18 11 10 20 SYMBOL CLEAR Q0 to Q7 D0 to D7 CLOCK GND Vcc NAME AND FUNCTION Master Reset Input (Active LOW) Flip Flop Outputs Data Inputs Clock Input (LOW to HIGH, Edge Triggered) Ground (0V) Positive Supply Voltage TRUTH TABLE INPUTS CLEAR L H H H X : Don’t Care OUTPUTS FUNCTION D X L H X Q L L H Qn NO CHANGE CLEAR CLOCK X LOGIC DIAGRAM Thi……
