Texas Instruments CD74HCT393M96, CD74HCT393M, CD74HCT393E, CD74HC393M96, CD74HC393M Datasheet
...
[ /Title (CD74 HC393
,
CD74
HCT39
3) /Subject (High Speed CMOS
Data sheet acquired from Harris Semiconductor SCHS186
September 1997
CD74HC393,
CD74HCT393
High Speed CMOS Logic
Dual 4 -Stage Binary Counter
Features
•Fully Static Operation
•Buffered Inputs
•Common Reset
•Negative-Edge Clocking
•Typical fMAX = 60 MHz at VCC = 5V, CL = 15pF, TA = 25oC
•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 CD74HC393 and CD74HCT393 are 4-stage ripple-carry binary counters. Al counter stages are masterslave 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
|
TEMP. RANGE (oC) |
|
PKG. |
PART NUMBER |
PACKAGE |
NO. |
|
CD74HC393E |
-55 to 125 |
14 Ld PDIP |
E14.3 |
|
|
|
|
CD74HCT393E |
-55 to 125 |
14 Ld PDIP |
E14.3 |
|
|
|
|
Pinout
CD74HC393, CD74HCT393
(PDIP, SOIC)
TOP VIEW
|
1CP |
|
1 |
|
14 |
|
VCC |
|
1MR |
|
|
|
|
|
|
||
|
2 |
|
13 |
|
2CP |
|
||
|
1Q0 |
|
|
|
|
2MR |
||
|
|
3 |
|
12 |
|
|||
|
1Q1 |
|
|
|
|
2Q0 |
||
|
|
4 |
|
11 |
|
|||
|
1Q2 |
|
|
|
|
2Q1 |
||
|
|
5 |
|
10 |
|
|||
|
1Q3 |
|
|
|
|
2Q2 |
||
|
|
6 |
|
9 |
|
|||
GND |
|
|
|
|
2Q3 |
|||
|
7 |
|
8 |
|
||||
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. |
File Number 1653.1 |
|
|
||
Copyright © Harris Corporation 1997 |
1 |
|
|
|
|
CD74HC393, CD74HCT393
Functional Diagram
|
|
1 |
|
|
|
3 |
1Q0 |
|
|
|
|
|
|
4 |
|||
|
|
|
|
|
|
|||
1CP |
|
|
|
BINARY |
|
|
1Q1 |
|
2 |
|
|
5 |
|||||
1MR |
|
COUNTER |
|
1Q2 |
||||
|
|
|
|
|
||||
|
|
|
|
|
6 |
|||
|
|
|
|
|
|
|
1Q3 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
11 |
|
|
|
13 |
|
|
|
2Q0 |
||
|
|
|
|
|
||||
|
|
|
|
|||||
|
|
|
|
|
|
|||
|
|
|
|
|
10 |
|||
|
|
|
|
|
|
|||
2CP |
|
|
|
BINARY |
|
2Q1 |
||
|
|
|
|
|
||||
12 |
|
|
9 |
|||||
|
|
|
|
|||||
2MR |
|
COUNTER |
|
|
||||
|
|
|
|
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 |
|
|
L L L L |
|
|
|
|
|
|
|
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
|
|
|
CD74HC393, CD74HCT393 |
|
|
|||
Logic Diagram |
|
|
|
|
|
|
|
|
|
Φ |
Q |
Φ |
Q |
Φ |
Q |
Φ |
Q |
1(13) |
|
|
|
|
|
|
|
|
CP |
Φ |
Q |
Φ |
Q |
Φ |
Q |
Φ |
Q |
|
|
R |
|
R |
|
R |
|
R |
2(12) |
|
|
|
|
|
|
|
|
MR |
|
|
|
|
|
|
|
|
|
|
|
3(11) |
|
4(10) |
|
5(9) |
6(8) |
|
|
|
Q0 |
|
Q1 |
|
Q2 |
Q3 |
|
|
|
|
3 |
|
|
|
|
Loading...