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CD74HC273 Datasheet(Fiches technique) 1 Page - Texas Instruments

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Numéro de pièce CD74HC273
Description  High Speed CMOS Logic Octal D-Type Flip-Flop with Reset
Télécharger  8 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
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1
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
© Harris Corporation 1998
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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