M74HCT273 데이터 시트보기 (PDF) - STMicroelectronics

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M74HCT273

OCTAL D TYPE FLIP FLOP WITH CLEAR

STMicroelectronics 

M54HCT273

M74HCT273

OCTAL D TYPE FLIP FLOP WITH CLEAR

. HIGH SPEED

fMAX = 80 MHz (TYP.) AT VCC = 5 V

. LOW POWER DISSIPATION

ICC = 4 µA (MAX.) AT TA = 25 °C

. COMPATIBLE WITH TTL OUTPUTS

VIH = 2V (MIN.) VIL = 0.8V (MAX)

. OUTPUT DRIVE CAPABILITY

10 LSTTL LOADS

. SYMMETRICAL OUTPUT IMPEDANCE

IOH = IOL = 4 mA (MIN.)

. BALANCED PROPAGATION DELAYS

tPLH = tPHL

. PIN AND FUNCTION COMPATIBLE WITH

54/74LS273

B1R

(Plastic Package)

M 1R

(Micro Package)

F1R

(Ceramic Package)

C1R

(Chip Carrier)

DESCRIPTION

The M54/74HCT273 is a high speed CMOS OCTAL

D-TYPE FLIP FLOP WITH CLEAR fabricated in sili-

con gate C2MOS technology. It has the same high

speed performance of LSTTL combined with true

CMOS low power consumption. 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 volt-

age. This integrated circuit has input and output

characteristics that are fully compatible with 54/74

LSTTL logic families. M54/74HCT devices are de-

signed to directly interface HSC2MOS systems with

TTL and NMOS components. They are also plug in

replacements for LSTTL devices giving a reduction

of power consumption. All inputs are equipped with

protection circuits against static discharge and tran-

sient excess voltage.

ORDER CODES :

M54HCT273F1R M74HCT273M1R

M74HCT273B1R M74HCT273C1R

PIN CONNECTIONS (top view)

INPUT AND OUTPUT EQUIVALENT CIRCUIT

February 1993

NC =

No Internal

Connection

1/10

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