74AC273B(1998) 查看數據表（PDF） - STMicroelectronics

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74AC273B
(Rev.:1998)

OCTAL D-TYPE FLIP FLOP WITH CLEAR

STMicroelectronics 

®

74AC273

OCTAL D-TYPE FLIP FLOP WITH CLEAR

s HIGH SPEED:

fMAX = 190 MHz (TYP.) at VCC = 5V

s LOW POWER DISSIPATION:

ICC = 8 µA (MAX.) at TA = 25 oC

s HIGH NOISE IMMUNITY:

VNIH = VNIL = 28% VCC (MIN.)

s 50Ω TRANSMISSION LINE DRIVING

CAPABILITY

s SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 24 mA (MIN)

s BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

s OPERATING VOLTAGE RANGE:

VCC (OPR) = 2V to 6V

s PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 273

s IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The AC273 is a high-speed CMOS OCTAL

D-TYPE FLIP FLOP WITH CLEAR fabricated

with sub-micron silicon gate and double-layer

metal wiring C2MOS technology. It is ideal for low

power applications mantaining high speed

PRELIMINARY DATA

B

M

(Plastic Package)

(Micro Package)

ORDER CODES :

74AC273B

74AC273M

operation similar to equivalent Bipolar Schottky

TTL.

Information signals applied to D inputs are

transfered to the Q output on the positive going

edge of the clock pulse.

When the CLEAR input is held low, the Q outputs

are held low independentely of the other inputs .

All inputs and outputs are equipped with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

November 1998

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