SN74LS393MEL ON Semiconductor, SN74LS393MEL Datasheet
SN74LS393MEL
Manufacturer Part Number
SN74LS393MEL
Description
DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER
Manufacturer
ON Semiconductor
Datasheet
1.SN74LS393MEL.pdf
(5 pages)
DUAL DECADE COUNTER;
DUAL 4-STAGE
BINARY COUNTER
4-stage ripple counters. Each half of the LS390 is partitioned into a
divide-by-two section and a divide-by five section, with a separate clock input
for each section. The two sections can be connected to count in the 8.4.2.1
BCD code or they can count in a biquinary sequence to provide a square wave
(50% duty cycle) at the final output.
three stages triggered in a ripple fashion. In both the LS390 and the LS393,
the flip-flops are triggered by a HIGH-to-LOW transition of their CP inputs.
Each half of each circuit type has a Master Reset input which responds to a
HIGH signal by forcing all four outputs to the LOW state.
The SN54 / 74LS390 and SN54 / 74LS393 each contain a pair of high-speed
Each half of the LS393 operates as a Modulo-16 binary divider, with the last
Dual Versions of LS290 and LS293
LS390 has Separate Clocks Allowing 2, 2.5, 5
Individual Asynchronous Clear for Each Counter
Typical Max Count Frequency of 50 MHz
Input Clamp Diodes Minimize High Speed Termination Effects
V CC
CP 0
16
1
V CC
CP
14
1
CP 0
MR
15
2
MR
CP
13
2
MR
SN54 / 74LS390
14
Q 0
SN54 / 74LS393
CONNECTION DIAGRAM DIP (TOP VIEW)
3
Q 0
MR
12
3
CP 1
Q 0
13
4
Q 0
Q 1
11
4
CP 1
Q 1
12
5
Q 1
10
Q 2
5
Q 1
Q 2
11
6
Q 2
Q 3
9
6
Q 2
Q 3
10
7
GND
Q 3
8
7
GND
Q 3
9
8
FAST AND LS TTL DATA
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
5-1
16
16
SN54/74LS390
SN54/74LS393
DUAL DECADE COUNTER;
14
14
ORDERING INFORMATION
LOW POWER SCHOTTKY
16
1
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
14
1
1
1
BINARY COUNTER
DUAL 4-STAGE
1
1
Ceramic
Plastic
SOIC
CASE 751B-03
CASE 751A-02
CASE 620-09
CASE 648-08
CASE 632-08
CASE 646-06
CERAMIC
CERAMIC
N SUFFIX
D SUFFIX
N SUFFIX
D SUFFIX
J SUFFIX
J SUFFIX
PLASTIC
PLASTIC
SOIC
SOIC
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SN74LS393MEL Summary of contents
Page 1
DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER The SN54 / 74LS390 and SN54 / 74LS393 each contain a pair of high-speed 4-stage ripple counters. Each half of the LS390 is partitioned into a divide-by-two section and a divide-by five section, ...
Page 2
SN54/74LS390 SN54/74LS393 PIN NAMES CP Clock (Active LOW going edge) Input to +16 (LS393 Clock (Active LOW going edge) Input to 2 (LS390 Clock (Active LOW going edge) Input to 5 (LS390) MR Master Reset (Active ...
Page 3
SN54/74LS390 SN54/74LS393 SN54 / 74LS390 BCD TRUTH TABLE (Input OUTPUTS COUNT ...
Page 4
SN54/74LS390 SN54/74LS393 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE Symbol Parameter V IH Input HIGH Voltage Input LOW Voltage Input LOW Voltage V IK Input Clamp Diode Voltage Output ...
Page 5
SN54/74LS390 SN54/74LS393 AC SETUP REQUIREMENTS ( 5.0 V) Symbol Parameter Clock Pulse Width LS393 Pulse Width LS390 Pulse Width ...