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SN74LS669N Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
SN74LS669NTI546Yes

SN74LS669N is a synchronous 4-bit up/down binary counter manufactured by **MOT (Motorola)**.

The SN74LS669N is a synchronous 4-bit up/down binary counter manufactured by MOT (Motorola).

Specifications:

  • Logic Family: LS (Low-Power Schottky)
  • Number of Bits: 4
  • Counting Sequence: Synchronous Up/Down
  • Clock Input: Positive-edge triggered
  • Operating Voltage: 4.75V to 5.25V (TTL compatible)
  • Maximum Clock Frequency: 25 MHz (typical)
  • Output Type: Standard TTL
  • Package Type: PDIP-16 (Plastic Dual In-Line Package)
  • Operating Temperature Range: 0°C to +70°C

Descriptions and Features:

  • Synchronous operation for high-speed counting.
  • Up/Down Control Input: Allows selection between count-up or count-down modes.
  • Parallel Load Capability: Enables presetting the counter via parallel inputs.
  • Carry and Borrow Outputs: Facilitates cascading multiple counters.
  • Internal Look-Ahead Circuitry: Ensures fast counting performance.
  • Direct Clear Input: Asynchronously resets the counter to zero.
  • Wide Operating Voltage Range: Ensures compatibility with standard TTL logic levels.

This IC is commonly used in digital counting applications, frequency dividers, and sequential logic circuits.

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