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What is 74LS92?

This electronic component, produced by the manufacturer "ON Semiconductor", performs the same function as "DECADE COUNTER; DIVIDE-BY-TWELVE COUNTER; 4-BIT BINARY COUNTER".


74LS92 Datasheet PDF - ON Semiconductor

Part Number 74LS92
Description DECADE COUNTER; DIVIDE-BY-TWELVE COUNTER; 4-BIT BINARY COUNTER
Manufacturers ON Semiconductor 
Logo ON Semiconductor Logo 


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DECADE COUNTER;
DIVIDE-BY-TWELVE COUNTER;
4-BIT BINARY COUNTER
The SN54 / 74LS90, SN54 / 74LS92 and SN54 / 74LS93 are high-speed
4-bit ripple type counters partitioned into two sections. Each counter has a di-
vide-by-two section and either a divide-by-five (LS90), divide-by-six (LS92) or
divide-by-eight (LS93) section which are triggered by a HIGH-to-LOW transi-
tion on the clock inputs. Each section can be used separately or tied together
(Q to CP) to form BCD, bi-quinary, modulo-12, or modulo-16 counters. All of
the counters have a 2-input gated Master Reset (Clear), and the LS90 also
has a 2-input gated Master Set (Preset 9).
Low Power Consumption . . . Typically 45 mW
High Count Rates . . . Typically 42 MHz
Choice of Counting Modes . . . BCD, Bi-Quinary, Divide-by-Twelve,
Binary
Input Clamp Diodes Limit High Speed Termination Effects
PIN NAMES
LOADING (Note a)
HIGH
LOW
CP0
CP1
CP1
MR1, MR2
MS1, MS2
Q0
Q1, Q2, Q3
Clock (Active LOW going edge) Input to
÷2 Section
Clock (Active LOW going edge) Input to
÷5 Section (LS90), ÷6 Section (LS92)
Clock (Active LOW going edge) Input to
÷8 Section (LS93)
Master Reset (Clear) Inputs
Master Set (Preset-9, LS90) Inputs
Output from ÷2 Section (Notes b & c)
Outputs from ÷5 (LS90), ÷6 (LS92),
÷8 (LS93) Sections (Note b)
0.5 U.L.
1.5 U.L.
0.5 U.L.
2.0 U.L.
0.5 U.L.
1.0 U.L.
0.5 U.L.
0.5 U.L.
10 U.L.
10 U.L.
0.25 U.L.
0.25 U.L.
5 (2.5) U.L.
5 (2.5) U.L.
NOTES:
a. 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.
b. The Output LOW drive factor is 2.5 U.L. for Military, (54) and 5 U.L. for commercial (74)
b. Temperature Ranges.
c. The Q0 Outputs are guaranteed to drive the full fan-out plus the CP1 input of the device.
d. To insure proper operation the rise (tr) and fall time (tf) of the clock must be less than 100 ns.
LS90
67
12
MS
14 CP0
1 CP1
MR Q0 Q1 Q2 Q3
12
2 3 12 9 8 11
VCC = PIN 5
GND = PIN 10
NC = PINS 4, 13
LOGIC SYMBOL
LS92
14 CP0
1 CP1
MR Q0 Q1 Q2 Q3
12
6 7 12 11 9 8
VCC = PIN 5
GND = PIN 10
NC = PINS 2, 3, 4, 13
FAST AND LS TTL DATA
5-1
SN54/74LS90
SN54/74LS92
SN54/74LS93
DECADE COUNTER;
DIVIDE-BY-TWELVE COUNTER;
4-BIT BINARY COUNTER
LOW POWER SCHOTTKY
14
1
J SUFFIX
CERAMIC
CASE 632-08
14
1
N SUFFIX
PLASTIC
CASE 646-06
14
1
D SUFFIX
SOIC
CASE 751A-02
ORDERING INFORMATION
SN54LSXXJ
SN74LSXXN
SN74LSXXD
Ceramic
Plastic
SOIC
LS93
14 CP0
1 CP1
MR Q0 Q1 Q2 Q3
12
2 3 12 9 8 11
VCC = PIN 5
GND = PIN 10
NC = PIN 4, 6, 7, 13

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74LS92 equivalent
SN54/74LS90 SN54/74LS92 SN54/74LS93
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA Operating Ambient Temperature Range
IOH Output Current — High
IOL Output Current — Low
Min Typ Max Unit
54 4.5 5.0 5.5
74 4.75 5.0 5.25
V
54 – 55 25 125 °C
74 0 25 70
54, 74
– 0.4
mA
54 4.0 mA
74 8.0
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VIH Input HIGH Voltage
Guaranteed Input HIGH Voltage for
2.0 V All Inputs
54 0.7 Guaranteed Input LOW Voltage for
VIL Input LOW Voltage 74 0.8 V All Inputs
VIK
VOH
Input Clamp Diode Voltage
Output HIGH Voltage
– 0.65 – 1.5 V VCC = MIN, IIN = – 18 mA
54 2.5 3.5
74 2.7 3.5
V VCC = MIN, IOH = MAX, VIN = VIH
V or VIL per Truth Table
VOL
Output LOW Voltage
54, 74
74
0.25 0.4
0.35 0.5
V IOL = 4.0 mA
V IOL = 8.0 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
IIH Input HIGH Current
20 µA VCC = MAX, VIN = 2.7 V
0.1 mA VCC = MAX, VIN = 7.0 V
Input LOW Current
MS, MR
IIL CP0
CP1 (LS90, LS92)
CP1 (LS93)
– 0.4
– 2.4 mA VCC = MAX, VIN = 0.4 V
– 3.2
– 1.6
IOS Short Circuit Current (Note 1)
– 20 –100 mA VCC = MAX
ICC Power Supply Current
15 mA VCC = MAX
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
FAST AND LS TTL DATA
5-5


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On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for 74LS92 electronic component.


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