Overview

The THCS251 integrates Serializer and Deserializer onto a single chip, which supports general purpose input and output (GPIO) signals through two pairs of differential signal.

GPIO sampling clock is selectable from external reference clock or internal oscillator clock.

The 8B10B encoding and decoding adopted by THCS251 is easy to connect to optical / wireless communication devices with high robustness and DC balanced signal.

The built-in adaptive equalizer enables flexible cable selection.

Features

• Support up to 35-bits GPIO

• Not required to input GPIO sampling clock in internal oscillator clock mode

• Full duplex communication by two pairs of differential signal

• Output buffer open-drain or push-pull selectable

• Support up to 8-bits low speed GPIO in low power Standby mode

• Integrated adaptive equalizer for long or lossy media

• 8B10B encoding and decoding

• Configurable digital noise filter

• Error detection and indication

• External reference clock frequency: 9-100MHz

• Spread Spectrum Clock Generator to reduce EMI

• Operating single power supply voltage: 1.7 V -3.6 V

• Wide range IO voltage: 1.7V - 3.6V

• Operating ambient temperature: -40°C to 85°C

Overview

The THCS253 is a transceiver IC with serializer and deserializer on a single chip that aggregates 32-bit GPIO and 2-wire serial interface signals and converts them into two pairs of differential signals for transmission and reception.

The THCS253 has two modes: SYNC mode and ASYNC mode. In SYNC mode, the uplink and downlink high-speed transmission signals operate synchronously, driven by the reference clock signal from the primary chip side. In ASYNC mode, the uplink and downlink high-speed transmission signals operate asynchronously, driven by the clock signals

from both the primary and secondary chips. The reference clock can be selected from either the internal OSC clock or the external input clock.

By accessing internal registers via the 2-wire serial interface, the 32-bit GPIO direction and output buffer type can be customized for each pin.

The 8B10B encoding and decoding used in the THCS253 provides high robustness, DC balanced signals, and easy connection to optical/wireless communication devices.

The built-in adaptive equalizer allows for flexible cable selection, and the CML driver with preemphasis allows for even longer cable transmissions.

Features

• Up to 32-bit GPIOs

• Internal oscillator mode requires no external clock signal input  Uplink and downlink synchronous mode with one-sided reference clock drive

• Uplink and downlink asynchronous mode with both side reference clocks driven

• Output buffer selectable between open-drain and push-pull

• 2-wire serial interface fast mode can be bridged

• Standby mode for low-power operation

• Adaptive equalizer supports high-loss transmission media

• 8B10B encoding/decoding

• Digital noise filters can be set for input and output

• Error detection and notification

• External reference clock frequency: 9-133.3MHz  Built-in spread spectrum clock generator

• Single power supply operation: 1.7 V - 3.6 V

• Operating ambient temperature range: -40°C to 85°C

Overview

The THCS254 is a transceiver IC with serializer and deserializer on a single chip that aggregates 20-bit GPIO and 2-wire serial interface signals and converts them into two pairs of differential signals for transmission and reception.

The THCS254 has two modes: SYNC mode and ASYNC mode. In SYNC mode, the uplink and downlink high-speed transmission signals operate synchronously, driven by the reference clock signal from the primary chip side. In ASYNC mode, the uplink and downlink high-speed transmission signals operate asynchronously, driven by the clock signals from both the primary and secondary chips. The reference clock can be selected from either the internal OSC clock or the external input clock.

By accessing internal registers via the 2-wire serial interface, the 20-bit GPIO direction and output buffer type can be customized for each pin.

The 8B10B encoding and decoding used in the THCS254 provides high robustness, DC balanced signals, and easy connection to optical/wireless communication devices.

The built-in adaptive equalizer allows for flexible cable selection, and the CML driver with preemphasis allows for even longer cable transmissions.

Features

• Up to 20-bit GPIOs

• Internal oscillator mode requires no external clock signal input

• Uplink and downlink synchronous mode with one-sided reference clock drive

• Uplink and downlink asynchronous mode with both side reference clocks driven

• Output buffer selectable between open-drain and push-pull

• 2-wire serial interface fast mode can be bridged

• Standby mode for low-power operation

• Adaptive equalizer supports high-loss transmission media

• 8B10B encoding/decoding

• Digital noise filters can be set for input and output

• Error detection and notification

• External reference clock frequency: 15-133.3MHz

• Built-in spread spectrum clock generator

• Single power supply operation: 1.7 V - 3.6 V

• Operating ambient temperature range: -40°C to 85°C