CD54HC273F datasheet(1/8 Pages) TI

Part #	CD54HC273F

Description	High Speed CMOS Logic Octal D-Type Flip-Flop with Reset

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Manufacturer	TI [Texas Instruments]

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Data sheet acquired from Harris Semiconductor

SCHS174

Features

• Common Clock and Asynchronous Master Reset

• Positive Edge Triggering

• Buffered Inputs

• Typical fMAX = 60MHz at VCC = 5V, CL = 15pF,

TA = 25

oC

• Fanout (Over Temperature Range)

- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads

- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads

• Wide Operating Temperature Range . . . -55oC to 125oC

• Balanced Propagation Delay and Transition Times

• Signiﬁcant Power Reduction Compared to LSTTL

Logic ICs

• HC Types

- 2V to 6V Operation

- High Noise Immunity: NIL = 30%, NIH = 30% of VCC

at VCC = 5V

• HCT Types

- 4.5V to 5.5V Operation

- Direct LSTTL Input Logic Compatibility,

VIL= 0.8V (Max), VIH = 2V (Min)

- CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH

Description

The Harris CD74HC273 and CD74HCT273 high speed octal

D-Type flip-flops with a direct clear input are manufactured

with silicon-gate CMOS technology. They possess the low

power consumption of standard CMOS integrated circuits.

Information at the D inputis transferred to the Q outputs on

the positive-going edge of the clock pulse. All eight ﬂip-ﬂops

are controlled by a common clock (CP) and a common reset

(MR). Resetting is accomplished by a low voltage level

independent of the clock. All eight Q outputs are reset to a

logic 0.

Pinout

CD54HC273, CD54HCT273, CD74HC273, CD74HCT273

(PDIP, SOIC, CERDIP)

TOP VIEW

Ordering Information

PART NUMBER

TEMP. RANGE

(oC)

PACKAGE

PKG.

NO.

CD54HC273F

-55 to 125

20 Ld CERDIP

F20.3

CD54HCT273F

-55 to 125

20 Ld CERDIP

F20.3

CD74HC273E

-55 to 125

20 Ld PDIP

E20.3

CD74HCT273E

-55 to 125

20 Ld PDIP

E20.3

CD74HC273M

-55 to 125

20 Ld SOIC

M20.3

CD74HCT273M

-55 to 125

20 Ld SOIC

M20.3

NOTES:

1. When ordering, use the entire part number. Add the sufﬁx 96 to

obtain the variant in the tape and reel.

2. Wafer and die for this part number is available which meets all

electrical specifications. Please contact your local sales office or

Harris customer service for ordering information.

11

12

13

14

15

16

17

18

20

19

10

9

8

7

6

5

4

3

2

1

MR

Q0

D0

D1

Q1

Q2

D3

D2

Q3

GND

VCC

D7

D6

Q6

Q7

Q5

D5

D4

Q4

CP

February 1998

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.

Copyright

CD74HC273,

CD74HCT273

High Speed CMOS Logic

Octal D-Type Flip-Flop with Reset

File Number

1479.2

[ /Title

(CD74

HC273

,

CD74

HCT27

3)

/Sub-

ject

(High

Speed

CMOS

Logic

Octal

D-

Type

Flip-

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