器件名称:
74VHCT273A
功能描述:
OCTAL D-TYPE FLIP FLOP WITH CLEAR
文件大小:
69.68KB 共9页
简 介:
74VHCT273A OCTAL D-TYPE FLIP FLOP WITH CLEAR s s s s s s s s s s HIGH SPEED: fMAX = 170 MHz (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 4 A (MAX.) at TA = 25 oC COMPATIBLE WITH TTL OUTPUTS: VIH = 2V (MIN), VIL = 0.8V (MAX) POWER DOWN PROTECTION ON INPUTS & OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 8 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 4.5V to 5.5V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 273 IMPROVED LATCH-UP IMMUNITY LOW NOISE: VOLP = 0.9V (Max.) M (Micro Package) T (TSSOP Package) ORDER CODES : 74VHCT273AM 74VHCT273AT technology. Information signals applied to D inputs are transfered to the Q outputs on the positive going edge of the clock pulse. When the CLEAR input is held low, the Q outputs are held low independently of the other inputs . Power down protection is provided on all inputs and outputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. DESCRIPTION The 74VHCT273A is an advanced high-speed CMOS OCTAL D-TYPE FLIP FLOP WITH CLEAR fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS PIN CONNECTION AND IEC LOGIC SYMBOLS November 1999 1/9 74VHCT273A INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1 2, 5, 6, 9, 12, 15, 16, 19 3, 4, 7, 8, 13, 14,……
