Description
Texas Instruments SN74LS393D Dual 4 Bit Decade Up Counter 4.75 V to 5.25 V SMT / SMD SOIC-14
Each of these monolithic circuits contains eight master-slave flip-flops and additional gating to implement two individual four-bit counters in a single package. The ‘390 and ‘LS390 incorporate dual divide-by-two and divide-by-five counters, which can be used to implement cycle lengths equal to any whole and/or cumulative multiples of 2 and/or 5 up to divide-by-100. When connected as a bi-quinary counter, the separate divide-by-two circuit can be used to provide symmetry (a square wave) at the final output stage. The ‘393 and ‘LS393 each comprise two independent four-bit binary counters each having a clear and a clock input. N-bit binary counters can be implemented with each package providing the capability of divide-by-256. The ‘390, ‘LS390, ‘393, and ‘LS393 have parallel outputs from each counter stage so that any submultiple of the input count frequency is available for system-timing signals. Series 54 and Series 54LS circuits are characterized for operation over the full military temperature range of -55°C to 125°C; Series 74 and Series 74LS circuits are characterized for operation from 0°C to 70°C.
Texas Instruments range of Counters and Shift Registers from the 74LS Family of Low Power Schottky Logic ICs. The 74LS Family use bipolar junction technology coupled with Schottky diode clamps to achieve operating speeds equal to the original 74TTL family but with much lower power consumption.
- LOGIC, DUAL 4-BIT BIN CNTR, 14SOIC
- No. of Pins:14
- Operating Temperature Range:0°C to +70°C
- Case Style:SOIC
- Logic IC Base Number:74393
- Logic IC Family:LS
- Logic IC Function:Dual 4-Bit Decade and Binary Counter
- Max Output Current:8mA
- Max Supply Voltage:5.25V
- Min Supply Voltage:4.75V
- Termination Type:SMD
Manufacturer Part Number: SN74LS393D
Manufacturer: Texas Instruments
