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74393 Datasheet

  • 74393

  • High Speed CMOS Logic Dual 4 -Stage Binary Counter

  • 7頁(yè)

  • HARRIS   HARRIS

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Semiconductor
CD74HC393,
CD74HCT393
High Speed CMOS Logic
Dual 4 -Stage Binary Counter
Description
The Harris CD74HC393 and CD74HCT393 are 4-stage
ripple-carry binary counters. Al counter stages are master-
slave 鏗俰p-鏗俹ps. The state of the stage advances one count
on the negative transition of each clock pulse; a high voltage
level on the MR line resets all counters to their zero state. All
inputs and outputs are buffered.
September 1997
Features
鈥?Fully Static Operation
鈥?Buffered Inputs
鈥?Common Reset
鈥?Negative-Edge Clocking
鈥?Typical f
MAX
= 60 MHz at V
CC
= 5V, C
L
= 15pF,
T
A
= 25
o
C
鈥?Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
鈥?Wide Operating Temperature Range . . . -55
o
C to 125
o
C
鈥?Balanced Propagation Delay and Transition Times
鈥?Signi鏗乧ant Power Reduction Compared to LSTTL
Logic ICs
鈥?HC Types
- 2V to 6V Operation
- High Noise Immunity: N
IL
= 30%, N
IH
= 30%of V
CC
at
V
CC
= 5V
鈥?HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
V
IL
= 0.8V (Max), V
IH
= 2V (Min)
- CMOS Input Compatibility, I
l
鈮?/div>
1碌A(chǔ) at V
OL
, V
OH
Ordering Information
PART NUMBER
CD74HC393E
CD74HCT393E
CD74HC393M
CD74HCT393M
NOTES:
1. When ordering, use the entire part number. Add the suf鏗亁 96 to
obtain the variant in the tape and reel.
2. Wafer or die for this part number is available which meets all elec-
trical specifications. Please contact your local sales office or
Harris customer service for ordering information.
TEMP. RANGE (
o
C)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
PACKAGE
14 Ld PDIP
14 Ld PDIP
14 Ld SOIC
14 Ld SOIC
PKG.
NO.
E14.3
E14.3
M14.15
M14.15
Pinout
CD74HC393, CD74HCT393
(PDIP, SOIC)
TOP VIEW
1CP 1
1MR 2
1Q0 3
1Q1 4
1Q2 5
1Q3 6
GND 7
14 V
CC
13 2CP
12 2MR
11 2Q0
10 2Q1
9 2Q2
8 2Q3
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
漏
Harris Corporation 1997
File Number
1653.1
1

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