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HC55121IB from INTERSIL

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HC55121IB

Manufacturer: INTERSIL

Low Power Universal SLIC Family

Partnumber Manufacturer Quantity Availability
HC55121IB INTERSIL 78 In Stock

Description and Introduction

Low Power Universal SLIC Family The HC55121IB is a subscriber line interface circuit (SLIC) manufactured by **INTERSIL**. 

Key specifications include:
- **Function**: Provides BORSCHT (Battery feed, Overvoltage protection, Ringing, Supervision, Codec, Hybrid, and Test) functions for analog telephone lines.
- **Operating Voltage**: Typically operates from -48V to -60V for battery feed.
- **Package**: Available in a **28-pin PLCC** package.
- **Features**:
  - On-chip ringing relay driver.
  - Programmable loop current and off-hook detection.
  - Thermal shutdown protection.
  - Compatible with various codecs and DSP interfaces.
- **Applications**: Used in analog telephony systems, PBX, and central office equipment.

For exact electrical characteristics and performance details, refer to the **official datasheet from INTERSIL (now Renesas Electronics)**.

Partnumber Manufacturer Quantity Availability
HC55121IB INTERSIL 256 In Stock

Description and Introduction

Low Power Universal SLIC Family The HC55121IB is a subscriber line interface circuit (SLIC) manufactured by INTERSIL. Here are the key specifications:

1. **Function**: Provides BORSCHT (Battery feed, Overvoltage protection, Ringing, Supervision, Codec, Hybrid, and Test) functions for analog telephone lines.
2. **Operating Voltage**: Typically operates from -48V to -60V for battery feed.
3. **Current Limiting**: Programmable current limiting for short-circuit protection.
4. **Ringing**: Supports high-voltage ringing (up to 100V RMS) with programmable amplitude and frequency.
5. **Supervision**: On-hook/off-hook detection and ground key detection.
6. **Hybrid**: Integrated 2-wire to 4-wire conversion for voice signals.
7. **Package**: Available in a 28-pin PLCC (Plastic Leaded Chip Carrier) package.
8. **Temperature Range**: Industrial temperature range (-40°C to +85°C).
9. **Compliance**: Meets telecom standards such as ITU-T and FCC Part 68.

For exact electrical characteristics and application details, refer to the official datasheet from INTERSIL.

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