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CD74HC393 Datasheet Preview

CD74HC393 Datasheet

Dual 4-Stage Binary Counter

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Semiconductor
September 1997
CD74HC393,
CD74HCT393
High Speed CMOS Logic
Dual 4 -Stage Binary Counter
Features
Description
• Fully Static Operation
• Buffered Inputs
• Common Reset
• Negative-Edge Clocking
• TTAyp=ic2a5lofCMAX = 60 MHz at VCC = 5V, CL = 15pF,
• 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
The Harris CD74HC393 and CD74HCT393 are 4-stage
ripple-carry binary counters. Al counter stages are master-
slave flip-flops. 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.
Ordering Information
PART NUMBER TEMP. RANGE (oC) PACKAGE
PKG.
NO.
CD74HC393E
-55 to 125
14 Ld PDIP E14.3
CD74HCT393E
-55 to 125
14 Ld PDIP E14.3
CD74HC393M
-55 to 125
14 Ld SOIC M14.15
CD74HCT393M
-55 to 125
14 Ld SOIC M14.15
NOTES:
1. When ordering, use the entire part number. Add the suffix 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.
Pinout
CD74HC393, CD74HCT393
(PDIP, SOIC)
TOP VIEW
1CP 1
1MR 2
1Q0 3
1Q1 4
1Q2 5
1Q3 6
GND 7
14 VCC
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 © Harris Corporation 1997
1
File Number 1653.1




Harris

CD74HC393 Datasheet Preview

CD74HC393 Datasheet

Dual 4-Stage Binary Counter

No Preview Available !

Functional Diagram
CD74HC393, CD74HCT393
1
1CP
2
1MR
13
2CP
12
2MR
BINARY
COUNTER
BINARY
COUNTER
3
1Q0
4
1Q1
5
1Q2
6
1Q3
11
2Q0
10
2Q1
9
2Q2
8
2Q3
GND = 7
VCC = 14
TRUTH TABLE
OUTPUTS
CP COUNT
Q0
Q1
Q2
Q3
0
L
L
L
L
1
H
L
L
L
2
L
H
L
L
3
H
H
L
L
4
L
L
H
L
5
H
L
H
L
6
L
H
H
L
7
H
H
H
L
8
L
L
L
H
9
H
L
L
H
10
L
H
L
H
11
H
H
L
H
12
L
L
H
H
13
H
L
H
H
14
L
H
H
H
15
H
H
H
H
CP COUNT
MR
OUTPUT
L
No Change
L
Count
X
H
LLLL
NOTE: H = High Voltage Level, L = Low Voltage Level, X = Don’t Care,
= Transition from Low to High Level, = Transition from High to Low.
2


Part Number CD74HC393
Description Dual 4-Stage Binary Counter
Maker Harris
PDF Download

CD74HC393 Datasheet PDF






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