Texas Instruments TUSB2136 USB Keyboard Hub Controller Data Manual

About this manual

The TUSB2136 is an integrated USB 1.1 hub with a keyboard I/O controller, offering 8 KB × 8 KB of RAM for development and an optional 8 KB × 8 KB ROM version. It includes an 8052‑based microcontroller, programmable registers, and supports both 1.5 Mbps and 12 Mbps USB data rates.

The manual details the functional block diagram, register map, electrical specifications, mechanical dimensions (64‑pin TQFP package), and application notes such as reset timing and power‑down mode. It also lists pin assignments, endpoint configurations, and provides wiring diagrams for keyboard matrix and LED connections.

What's inside

• Introduction
• Functional Block Diagram
• Features
• Electrical Specifications
• Application
• Mechanical Data
• Register Descriptions
• USB Registers
• Endpoint Configuration

Specifications

Frequently asked questions

What is the operating clock frequency of the TUSB2136?

The device operates from a 12 MHz crystal.

How much RAM does the TUSB2136 provide for application development?

It provides 8 KB × 8 bits of RAM for application development.

What USB data rates does the TUSB2136 support?

It supports both 1.5 Mbps and 12 Mbps USB data rates.

What package type is used for the TUSB2136?

The chip is supplied in a 64‑pin TQFP package.