My Inquiry
My Account
Texas Instruments TM4C1231H6PZI
- Part No.:
- TM4C1231H6PZI
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
TM4C1231H6PZI.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:395
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TM4C1231H6PZI from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 80 MHz operation, 256 KB flash, 32 KB SRAM, integrated USB 2.0 OTG, 12-bit ADC (1 MSPS), and 48 GPIOs in a 100-pin LQFP package. It serves as the main system controller in industrial HMI, motor control interfaces, and networked sensor nodes.
For engineers reviewing the TM4C1231H6PZI datasheet, TM4C1231H6PZI pinout, TM4C1231H6PZI application, or TM4C1231H6PZI equivalent, key selection criteria include USB OTG support, hibernation module with RTC and battery-backed memory, deterministic floating-point performance, and JTAG/SWD debug compatibility with TI's Code Composer Studio and IAR Embedded Workbench.
Technical Context
The TM4C1231H6PZI integrates a single-core ARM Cortex-M4F with hardware FPU and NVIC supporting up to 80 interrupts. Its system-level architecture includes a hibernation module with dedicated VBAT supply, real-time clock, and 2 KB of battery-backed SRAM - enabling sub-μA sleep current with wake-on-RTC or external event.
Peripherals are tightly coupled via the μDMA controller (32-channel), supporting concurrent transfers across UART, SPI, I²C, ADC, and PWM without CPU intervention. Clock management uses a programmable PLL with multiple internal/external sources (including precision internal RC oscillator), and power domains allow selective peripheral gating while maintaining core state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 80 MHz with hardware floating-point unit (FPU) for deterministic math-intensive tasks |
| Memory | 256 KB on-chip flash (with ECC), 32 KB SRAM, plus 2 KB hibernation-mode battery-backed SRAM |
| ADC | 12-bit SAR ADC with 1 MSPS sampling rate, 12 input channels, hardware averaging, and temperature sensor |
| USB | USB 2.0 OTG controller with integrated PHY - supports host, device, and OTG roles without external transceiver |
| Timers | 6 general-purpose 32-bit timers (12 total 16-bit), 2 watchdog timers, and hibernation module with RTC |
| I/O | 48 GPIO pins with configurable pull-up/down, slew rate control, and interrupt-on-change capability |
| Package | 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) with exposed thermal pad for industrial ambient operation |
Pinout & Package
TM4C1231H6PZI is housed in a 100-pin LQFP package with exposed thermal pad (PZ suffix). Pin functions are defined per TI SPMS340E datasheet Rev E, with dedicated JTAG/SWD, USB D+/D−, VDDA/VSSA analog supply pins, and GPIO multiplexing controlled via GPIO AFSEL registers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDC | Power supply inputs | Separate digital (VDD), analog (VDDA), and core (VDDC) rails enable noise isolation and precise ADC reference stability |
| USB0DP / USB0DM | USB differential pair | Integrated PHY eliminates need for external transceiver; supports full-speed (12 Mbps) USB device/host/OTG operation |
| HIBRST / HIB | Hibernation control | HIB pin enables hardware hibernate entry; HIBRST provides reset during hibernation mode exit |
| PD0–PD7, PE0–PE5, PF0–PF4 | GPIO bank terminals | Configurable as digital I/O, timer/UART/SPI peripherals, or analog inputs - mapped via GPIOAFSEL and GPIODEN registers |
| TCK, TMS, TDI, TDO, nSRST | JTAG/SWD debug interface | Supports IEEE 1149.1 JTAG and ARM Serial Wire Debug (SWD); nSRST is dedicated debug reset independent of system reset |
Key Features
| Feature | Design Value |
|---|---|
| Hibernation Module | Dedicated low-power domain with RTC, battery-backed 2 KB SRAM, and wake-on-RTC match or external pin - enables <1.5 µA hibernate current |
| USB 2.0 OTG | Fully integrated PHY and controller supporting device, host, and OTG modes - no external components required for USB connectivity |
| μDMA Controller | 32-channel memory-to-peripheral and memory-to-memory DMA with scatter-gather support - offloads CPU during high-bandwidth transfers |
| Analog Subsystem | 12-bit 1 MSPS ADC with 12-channel input mux, hardware sample averaging (up to 64x), and internal temperature sensor |
| Floating-Point Unit | IEEE 754-compliant single-precision FPU with full instruction set - enables real-time signal processing without software emulation overhead |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Standalone touch-enabled display panel controlling PLC I/O and reporting status over RS-485 and USB. IC Role / Device Role / Timing Role: Main application processor executing GUI logic, managing USB CDC virtual COM port, and sampling analog sensor inputs via ADC. Use Value: Integrated USB OTG and hibernation module reduce BOM count and enable local data logging during power loss with RTC timestamping. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality with periodic BLE or LoRaWAN upload. IC Role / Device Role / Timing Role: System controller coordinating sensor reads, data preprocessing, and low-power wireless transmission scheduling. Use Value: Sub-µA hibernate current and battery-backed RTC allow accurate time-stamped wake cycles every 15 minutes - extending 2xAA battery life beyond 2 years. |
| Motor Control Interface | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Compact servo drive interface board accepting analog setpoints and generating PWM outputs with current feedback protection. IC Role / Device Role / Timing Role: Real-time motion controller using GPTM PWM generators, ADC for current sensing, and GPIO for fault signaling. Use Value: Deterministic FPU and 80 MHz timing resolution support closed-loop PID execution at ≤100 µs intervals with jitter under ±100 ns. | Use Scenario: DIN-rail mounted I/O expansion module adding 16 isolated digital inputs and 8 relay outputs to legacy PLC backplanes. IC Role / Device Role / Timing Role: Protocol bridge between Modbus RTU (via UART) and local GPIO/peripheral control with watchdog supervision. Use Value: Dual UARTs with ISO 7816 and modem handshake support enable robust fieldbus communication; hibernation module preserves configuration during brown-out events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TM4C123GH6PM | Same core and peripheral set but in 64-pin LQFP; lacks USB PHY and has reduced GPIO count (43 vs 48) and flash (256 KB same) | Targeted at space-constrained designs where USB is not required and fewer I/Os suffice | Select TM4C123GH6PM only if board layout excludes USB connectivity and GPIO count can be reduced by ≥5 pins |
| STM32F407VGT6 | ARM Cortex-M4F @ 168 MHz, 1 MB flash, 192 KB RAM; no integrated USB PHY - requires external transceiver for full-speed USB | Better raw compute throughput and memory headroom, but higher BOM cost and design complexity for USB | Choose STM32F407VGT6 when application demands >80 MHz deterministic FPU performance and larger code/data footprint, accepting added USB component cost |
Compared with TM4C123GH6PM, TM4C1231H6PZI offers USB OTG integration and 5 extra GPIOs in a larger package; versus STM32F407VGT6, it trades peak clock speed and memory for lower system-level USB implementation cost and proven industrial temperature reliability.
Availability
TM4C1231H6PZI is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, motor control interfaces, and PLC I/O modules requiring stable component supply across extended product lifecycles.
Supply support for TM4C1231H6PZI 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 technologies with decades of industrial and automotive qualification experience.
The TM4C1231H6PZI belongs to TI's Tiva C Series - designed specifically for cost-sensitive, real-time industrial control applications demanding integrated connectivity, low-power hibernation, and robust debug infrastructure.
FAQ
What is the maximum operating temperature range for the TM4C1231H6PZI?
The TM4C1231H6PZI is rated for industrial temperature operation from –40°C to +105°C. This specification is validated per TI's production test flow and applies to all functional blocks including the Cortex-M4F core, USB PHY, ADC, and hibernation module - making it suitable for enclosed industrial enclosures without active cooling.
Does the TM4C1231H6PZI support USB device mode without external components?
Yes, the TM4C1231H6PZI includes a fully integrated USB 2.0 OTG physical layer (PHY) and controller. When configured in device mode, it operates as a full-speed (12 Mbps) USB device using only the onboard USB0DP and USB0DM pins - no external transceiver, resistors, or magnetics are required for basic CDC or HID functionality.
How much SRAM is retained during hibernation mode on the TM4C1231H6PZI?
The TM4C1231H6PZI retains 2 KB of SRAM in its hibernation module when powered from VBAT. This memory remains valid across hibernate entry/exit and maintains contents during main power loss - enabling firmware to preserve critical state, timestamps, or sensor logs without external backup components.
What debug interfaces does the TM4C1231H6PZI support?
The TM4C1231H6PZI supports both IEEE 1149.1 JTAG and ARM Serial Wire Debug (SWD) protocols via dedicated TCK/TMS/TDI/TDO/nSRST pins. SWD mode uses only two pins (SWDIO and SWCLK), reducing debug footprint while retaining full register access, flash programming, and real-time trace capabilities through TI's XDS110 or compatible debug probes.
Is the TM4C1231H6PZI pin-compatible with other TM4C123x devices?
No, the TM4C1231H6PZI is not pin-compatible with other TM4C123x variants such as TM4C123GH6PM or TM4C123BE6PM. While sharing the same core and many peripherals, differences in USB PHY inclusion, hibernation pin assignment (HIB/HIBRST), and GPIO count result in distinct pinouts - requiring unique PCB layouts for each variant.
TM4C1231H6PZI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- Tiva™ C
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, I2C, IrDA, Microwire, SPI, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, WDT
- Number of I/O:
- 69
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.08V ~ 3.63V
- Data Converters:
- A/D 22x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TM4C1231H6PZI FAQ
1.How can I place an order for TM4C1231H6PZI through Aetrix?
Please submit a Request for Quotation (RFQ) for TM4C1231H6PZI 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 TM4C1231H6PZI reliable?
The price and inventory of TM4C1231H6PZI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TM4C1231H6PZI is usually 5 days.
3.What payment methods are accepted for TM4C1231H6PZI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TM4C1231H6PZI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TM4C1231H6PZI?
TM4C1231H6PZI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TM4C1231H6PZI 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 TM4C1231H6PZI?
For technical support, including TM4C1231H6PZI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TM4C1231H6PZI requirements.
6.How does Aetrix verify that TM4C1231H6PZI is sourced from the original manufacturer or authorized distributors?
All TM4C1231H6PZI 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 TM4C1231H6PZI meets industry standards.
7.What is the process for return or replacement of TM4C1231H6PZI?
All TM4C1231H6PZI units undergo pre-shipment inspection (PSI). If there is an issue with TM4C1231H6PZI, 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 TM4C1231H6PZI part is unused and in its original packaging.
Return procedure for TM4C1231H6PZI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TM4C1231H6PZI Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
