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74LS293 from TI,Texas Instruments

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74LS293

Manufacturer: TI

4-bit Binary Counters

Partnumber Manufacturer Quantity Availability
74LS293 TI 1415 In Stock

Description and Introduction

4-bit Binary Counters The 74LS293 is a 4-bit binary counter manufactured by Texas Instruments (TI). It is part of the 74LS series of logic devices. Key specifications include:

- **Supply Voltage (VCC):** 4.75V to 5.25V
- **Operating Temperature Range:** 0°C to 70°C
- **Maximum Clock Frequency:** 32 MHz
- **Output Current (High):** -0.4 mA
- **Output Current (Low):** 8 mA
- **Power Dissipation:** 45 mW (typical)
- **Package Type:** 14-pin DIP (Dual In-line Package)
- **Logic Family:** LS-TTL (Low-power Schottky TTL)

The 74LS293 consists of four master-slave flip-flops internally connected to provide a divide-by-two section and a divide-by-eight section. It can be used as a 4-bit binary counter or as a divide-by-2 and divide-by-8 counter. The device features asynchronous reset inputs for clearing the counter.

Partnumber Manufacturer Quantity Availability
74LS293 HIT 100 In Stock

Description and Introduction

4-bit Binary Counters The 74LS293 is a 4-bit binary counter manufactured by HIT (Hitachi). It is part of the 74LS series of logic ICs. Key specifications include:

- **Function**: 4-bit binary counter with separate clock inputs for each stage.
- **Logic Family**: LS (Low Power Schottky).
- **Operating Voltage**: 4.75V to 5.25V.
- **Maximum Clock Frequency**: Typically 35 MHz.
- **Output Current**: High-level output current is -0.4 mA, and low-level output current is 8 mA.
- **Propagation Delay**: Typically 15 ns.
- **Package**: Available in 14-pin DIP (Dual In-line Package).
- **Temperature Range**: Commercial (0°C to 70°C) or industrial (-40°C to 85°C) depending on the variant.
- **Features**: Asynchronous reset, cascadable for higher bit counts.

These specifications are based on the standard 74LS293 datasheet from HIT.

Partnumber Manufacturer Quantity Availability
74LS293 1000 In Stock

Description and Introduction

4-bit Binary Counters The 74LS293 is a 4-bit binary counter manufactured by Texas Instruments. It is part of the 74LS series of logic ICs. Key specifications include:

- **Supply Voltage (VCC):** 4.75V to 5.25V
- **Operating Temperature Range:** 0°C to 70°C
- **Maximum Clock Frequency:** 32 MHz
- **Output Current (High):** -0.4 mA
- **Output Current (Low):** 8 mA
- **Power Dissipation:** 100 mW
- **Logic Family:** TTL (Transistor-Transistor Logic)
- **Package Type:** 14-pin DIP (Dual In-line Package)
- **Functionality:** Contains two separate 4-bit binary counters that can be used independently or cascaded for higher bit counts.

These specifications are typical for the 74LS293 IC as provided by Texas Instruments.

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