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Texas Instruments TUSB3210PMG4
- Part No.:
- TUSB3210PMG4
- Manufacturer:
- Texas Instruments
- Category:
- Application Specific Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
TUSB3210PMG4.pdf
- Description:
- IC USB CNTRLR STORAGE 64-LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,869
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Product details
Overview
TUSB3210PMG4 from Texas Instruments is a USB 2.0 full-speed general-purpose device controller integrating an 8052-based microcontroller with 8 KB RAM, four 8-bit GPIO ports (P0–P3), I²C master interface, UART-capable pins (P3.0/P3.1), and on-chip 48-MHz PLL clock generation from a 12-MHz crystal. It supports suspend/resume/remote wake-up and is used in embedded USB peripherals requiring firmware programmability without external EEPROM.
For engineers reviewing the TUSB3210PMG4 datasheet, TUSB3210PMG4 pinout, TUSB3210PMG4 application, or TUSB3210PMG4 equivalent, this page delivers verified technical context, validated pin functions, confirmed USB 2.0 full-speed compliance (12 Mbps), exact RAM architecture (8K × 8 code RAM + 512 × 8 shared SRAM), and real-world GPIO control use cases in barcode readers and flash memory adapters.
Technical Context
The TUSB3210PMG4 implements a dual-mode boot architecture: ROM microcode (6 KB) handles USB enumeration and firmware loading from either I²C-connected EEPROM or host USB download, then switches to execute from 8 KB RAM in normal mode. Its USB Serial Interface Engine (SIE) fully complies with USB 2.0 full-speed signaling and supports three endpoints (one control + two bulk/interrupt).
GPIO operation is managed via memory-mapped registers including PUR_0–PUR_3 for per-pin pullup control, INT_CFG for port-2 interrupt delay (2–10 ms), and WDCSR for watchdog timer (32-ms timeout, USB-SOF synchronized). The MCU uses standard 8052 instruction set with IDATA (256 B), XDATA (8 KB RAM + 512 B EDB/buffers), and CODE space mapping controlled by SDW bit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Compliance | USB 2.0 full-speed (12 Mbps); TID #40270269 certified |
| Microcontroller Core | 8052-compatible CPU with 256 B internal RAM, 8 KB downloadable code RAM, 512 B shared SRAM for EDB/buffers |
| GPIO Resources | Four 8-bit ports (P0–P3); Schmitt-trigger inputs; 100-µA active pullups; open-drain outputs |
| Interface Support | I²C master controller (SCL/SDA); UART-capable pins (P3.0/RXD, P3.1/TXD); 12-MHz crystal input (X1/X2) |
| Power & Timing | 3.3-V supply (3.0–3.6 V); 1.8-V core support (1.8VDD); 48-MHz system clock via on-chip PLL |
| USB Endpoints | Three total: Control endpoint 0 + two configurable bulk/interrupt endpoints (EP1–EP2) |
| Quiescent Current | 25–45 mA typical at 3.3 V; 45 µA in suspend mode; 1 µA on 1.8-V rail during suspend |
Pinout & Package
64-pin LQFP package (10.00 mm × 10.00 mm), thermally enhanced with exposed thermal pad. Pin functions are validated per TI SLLS466G Rev F datasheet (December 2015).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DP / DM (Pins 18, 19) | USB differential data pair | Full-speed USB 2.0 physical layer interface; requires 90-Ω differential impedance routing |
| P0.[0:7]–P3.[0:7] (Pins 43–50, 31–41, 22–30, 51–58) | General-purpose I/O ports | Configurable as input/output with software-controlled pullups; P3.0/P3.1 support UART debug interface |
| SCL / SDA (Pins 12, 11) | I²C bus interface | Master-only I²C controller; SCL push-pull output; SDA open-drain with external pullup required |
| RST (Pin 13) | Reset input | Schmitt-triggered active-low reset with 100-µA internal pullup; initiates boot sequence from ROM |
| PUR (Pin 17) | USB pullup enable | 3-state CMOS output (±4 mA); controls DP line pullup to signal device attachment to host |
| SUSP (Pin 16) | Suspend status indicator | Active-high open-drain output; signals USB suspend state to external logic or power management |
| X1 / X2 (Pins 61, 60) | Crystal oscillator interface | 12-MHz fundamental-mode crystal connection; X1 input, X2 output; requires low-capacitance PCB layout |
| VCC / GND (Pins 10, 39, 62 / 5, 21, 24, 42, 59) | Power supply terminals | 3.3-V main supply (VCC); multiple ground pins for noise reduction and thermal dissipation |
Key Features
| Feature | Design Value |
|---|---|
| No-EEPROM VID/PID selection | Firmware-configurable vendor/product IDs stored in RAM; eliminates external EEPROM BOM cost and layout area |
| Dual-boot capability | ROM microcode loads firmware from I²C EEPROM or host USB; enables field updates and flexible manufacturing programming |
| Integrated watchdog timer | 32-ms timeout synchronized to USB SOF; prevents lockup in embedded applications without external supervision |
| Per-port GPIO pullup control | PUR_0–PUR_3 registers allow individual disabling of 100-µA pullups per pin-critical for low-power sensor interfaces |
| USB suspend-aware power modes | Supports 1.8-V core retention during USB suspend (ICCx1.8 = 1 µA); enables rapid resume without full reinitialization |
Applications
| Barcode Readers | Flash Memory Adapters |
|---|---|
Use Scenario: Portable handheld scanners reading UPC/EAN codes and transmitting decoded data to host PCs or POS systems. IC Role / Device Role / Timing Role: USB device controller handling HID-class enumeration, keyboard report transmission, and GPIO-driven scan trigger/control. Use Value: Eliminates need for separate MCU + USB transceiver; 8 KB RAM hosts scanner firmware and buffer management logic. |
Use Scenario: USB-to-SPI/NAND adapters enabling legacy flash storage devices to connect to modern PCs or embedded hosts. IC Role / Device Role / Timing Role: General-purpose USB peripheral bridging host commands to flash memory via GPIO or I²C control lines. Use Value: On-chip 8052 core executes flash command translation and error correction; I²C master configures external PMIC or status sensors. |
| Industrial Keypads | USB Debug Interfaces |
Use Scenario: Ruggedized operator panels in factory automation using matrix key scanning and LED feedback over USB HID. IC Role / Device Role / Timing Role: GPIO-intensive USB HID device managing debounce, LED drive, and real-time key reporting. Use Value: Four 8-bit ports provide 32 GPIOs; Schmitt-trigger inputs tolerate noisy industrial environments; suspend mode reduces standby power. |
Use Scenario: In-circuit debug adapters connecting host PC debuggers (e.g., Keil, IAR) to target 8052-based systems via USB. IC Role / Device Role / Timing Role: USB-to-UART bridge using P3.0/P3.1 for serial debug channel while providing USB enumeration and descriptor handling. Use Value: Built-in UART simplifies debug interface design; no external level shifter needed for 3.3-V logic; firmware upgradable over USB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB device controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Cypress CY7C63101A-PC | 8-bit M8C core; 2 KB RAM; no integrated PLL; requires external 6-MHz clock or crystal | Limited GPIO (20 pins); no UART pins; older USB 1.1 compliance only | Choose for legacy designs where USB 1.1 suffices and lower RAM is acceptable. |
| FTDI FT232RL | Dedicated USB-to-serial bridge; no user-programmable MCU; fixed HID/UART descriptors | No GPIO control or custom firmware; limited to UART, FIFO, or bit-bang modes | Choose when only serial bridging is needed and firmware flexibility is unnecessary. |
Compared with CY7C63101A-PC and FT232RL, the TUSB3210PMG4 uniquely combines USB 2.0 full-speed compliance, 8 KB user RAM, four full GPIO ports, and UART/I²C interfaces in a single programmable IC-enabling custom HID, mass-storage, or vendor-class devices without external controllers.
Availability
TUSB3210PMG4 is available at Aetrix Electronics and suitable for barcode readers, flash memory adapters, industrial keypads, and USB debug interfaces requiring stable component supply across production lifecycles.
Supply support for TUSB3210PMG4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity solutions with over 50 years of innovation in industrial, automotive, and communications markets.
The TUSB3210PMG4 belongs to TI's USB device controller product line, designed specifically for cost-sensitive, firmware-programmable USB peripherals needing integrated MCU resources and minimal external components.
FAQ
What USB speed and compliance level does the TUSB3210PMG4 support?
The TUSB3210PMG4 supports USB 2.0 full-speed operation at 12 Mbps and is TID #40270269 certified. It implements a complete USB Serial Interface Engine (SIE) with suspend/resume/remote wake-up functionality and requires no external PHY. The TUSB3210PMG4 does not support high-speed (480 Mbps) or USB 3.x protocols.
How is firmware loaded onto the TUSB3210PMG4?
Firmware for the TUSB3210PMG4 is loaded during boot via two supported methods: (1) from an external I²C EEPROM connected to SCL/SDA pins, or (2) downloaded from a host PC over USB. The onboard 6-KB ROM microcode manages this process and switches execution to the 8-KB RAM after successful load. The TUSB3210PMG4 does not contain non-volatile program memory.
Does the TUSB3210PMG4 include a hardware UART interface?
Yes-the TUSB3210PMG4 supports UART functionality on P3.0 (RXD) and P3.1 (TXD) pins, documented in the datasheet as an optional debug interface. These pins are multiplexed GPIOs with Schmitt-trigger inputs and open-drain outputs, requiring external pullups for UART operation. The UART is not used for USB communication but serves development and diagnostics.
What power supply requirements does the TUSB3210PMG4 have?
The TUSB3210PMG4 requires a 3.3-V main supply (VCC, 3.0–3.6 V) and optionally a 1.8-V core supply (1.8VDD) for ultra-low-power suspend operation. Quiescent current is 25–45 mA in active mode and drops to 45 µA (VCC) or 1 µA (1.8VDD) in suspend. VREN pin controls 1.8-V regulator enable, and SUSP pin indicates suspend status.
Can the TUSB3210PMG4 operate without an external crystal?
No-the TUSB3210PMG4 requires a 12-MHz fundamental-mode crystal connected to X1/X2 pins for USB timing compliance. While the datasheet notes TEST0/TEST1 can select alternate clock sources (e.g., external oscillator), this mode is reserved for testing and not supported for production USB operation. Crystal layout must follow TI's low-capacitance, short-trace guidelines to meet USB jitter requirements.
TUSB3210PMG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TUSB3210
- Package/Case:
- 64-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Applications:
- USB Microcontroller
- Core Processor:
- 8052
- Program Memory Type:
- EEPROM
- Controller Series:
- TUSB
- RAM Size:
- 8K x 8
- Interface:
- Serial EEPROM
- Number of I/O:
- -
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-LQFP (10x10)
TUSB3210PMG4 FAQ
1.How can I place an order for TUSB3210PMG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB3210PMG4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TUSB3210PMG4 reliable?
The price and inventory of TUSB3210PMG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB3210PMG4 is usually 5 days.
3.What payment methods are accepted for TUSB3210PMG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB3210PMG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB3210PMG4?
TUSB3210PMG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB3210PMG4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TUSB3210PMG4?
For technical support, including TUSB3210PMG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB3210PMG4 requirements.
6.How does Aetrix verify that TUSB3210PMG4 is sourced from the original manufacturer or authorized distributors?
All TUSB3210PMG4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TUSB3210PMG4 meets industry standards.
7.What is the process for return or replacement of TUSB3210PMG4?
All TUSB3210PMG4 units undergo pre-shipment inspection (PSI). If there is an issue with TUSB3210PMG4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TUSB3210PMG4 part is unused and in its original packaging.
Return procedure for TUSB3210PMG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TUSB3210PMG4 Tags
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