TI-TUSB3410.pdf
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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
TUSB3410, TUSB3410I
SLLS519J –MARCH 2002–REVISED JULY 2017
TUSB3410 USB to Serial Port Controller
1 Device Overview
1
1.1 Features
1
• Fully Compliant With USB 2.0 Full-Speed
Specifications: TID#40340262
• Supports 12-Mbps USB Data Rate (Full Speed)
• Supports USB Suspend, Resume, and Remote
Wake-Up Operations
• Configurable to Bus-Powered and Self-Powered
Operation
• Supports a Total of Three Input and Three Output
(Interrupt, Bulk) Endpoints
• Integrated 8052 Microcontroller With:
– 256 × 8 RAM for Internal Data
– 10K × 8 ROM (With USB and I
2
C Bootloader)
– 16K × 8 RAM for Code Space Loadable From
Host or I
2
C Port
– 2K × 8 Shared RAM Used for Data Buffers and
Endpoint Descriptor Blocks (EDBs)
– Master I
2
C Controller for EEPROM Device
Access
– MCU Operates at 24 MHz, Providing 2-MIPS
Operation
– 128-ms Watchdog Timer
• Enhanced UART Features:
– Software and Hardware Flow Control
– Automatic RS-485 Bus Transceiver Control,
With and Without Echo
– Selectable IrDA Mode for Up to 115.2-kbps
Transfer
– Software-Selectable Baud Rate From 50 BPS to
921.6 kbps
– Programmable Serial-Interface Characteristics
– 5-, 6-, 7-, or 8-Bit Characters
– Even, Odd, or No Parity-bit Generation and
Detection
– 1-, 1.5-, or 2-Stop Bit Generation
– Line Break Generation and Detection
– Internal Test and Loopback Capabilities
– Modem Control Functions (CTS, RTS, DSR, RI
and DCD)
– Internal Diagnostic Capability
– Loopback Control for Communications
Link-Fault Isolation
– Break, Parity, Overrun, Framing-Error
Simulation
1.2 Applications
• Modems
• Peripherals:
Printers, Handheld Devices, and so on
• Medical Meters
• DSP and µC Interface
1.3 Description
The TUSB3410 device provides bridging between a USB port and an enhanced UART serial port. The
device contains an 8052 microcontroller unit (MCU) with 16KB of RAM that can be loaded from the host or
from the external onboard memory through an I
2
C. The device also contains 10KB of ROM that allows the
MCU to configure the USB port at boot time. The ROM code also contains an I
2
C bootloader. All device
functions (such as the USB command decoding, UART setup, and error reporting) are managed by the
internal MCU firmware in unison with the PC host.
Device Information
PART NUMBER PACKAGE BODY SIZE
TUSB3410
VQFN (32) 5.00 mm × 5.00 mm
LQFP (32) 7.00 mm × 7.00 mm
1. For all available packages, see the orderable addendum at the end of the data sheet.
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