Texas Instruments TM4C1233H6PZI

Overview

TM4C1233H6PZI from Texas Instruments is an ARM Cortex-M4F-based microcontroller with 256 KB flash, 32 KB SRAM, and integrated analog peripherals including a 12-bit 1-MSPS ADC with 12 channels. It features USB 2.0 OTG, multiple UARTs, I²C, SPI, PWM, and hibernation mode for ultra-low-power operation. It serves as the main control unit in industrial sensor nodes requiring real-time processing, connectivity, and battery longevity.

For engineers reviewing the TM4C1233H6PZI datasheet, TM4C1233H6PZI pinout, TM4C1233H6PZI application, or TM4C1233H6PZI equivalent, key selection criteria include its 80-MHz CPU clock, integrated USB PHY, hibernation current of 1.7 µA, 12-bit ADC resolution, and QFP-100 package compatibility with TI's TivaWare™ software stack.

Technical Context

The TM4C1233H6PZI integrates an ARM Cortex-M4F core with hardware floating-point unit (FPU), enabling deterministic real-time signal processing. Its system-level integration includes a 200-MHz system clock via PLL, configurable GPIOs with slew-rate control, and μDMA supporting 32-channel peripheral-to-memory transfers without CPU intervention.

On-chip analog subsystem comprises a 12-bit ADC with sample-and-hold, programmable gain amplifier (PGA) support, and internal temperature sensor. Power management includes deep-sleep and hibernate modes with RTC wake-up, VDD3ON retention, and battery-backed memory - all controlled via dedicated Hibernation Module registers.

Key Specifications

Pinout & Package

TM4C1233H6PZI is housed in a 100-pin LQFP (PZ) package with exposed thermal pad. Pin functions are defined per TI SPMS352E datasheet Rev E, June 2014, and include dedicated JTAG/SWD debug pins, USB D+/D−, ADC inputs (AIN0–AIN11), PWM outputs (PWM0–PWM7), and GPIOs with configurable pull-up/down and open-drain options.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with TM4C123GH6PM and STM32F407VGT6, the TM4C1233H6PZI uniquely balances USB integration, ultra-low-power hibernate, and industrial temperature range in a single 100-pin package - making it optimal for compact, battery-aware embedded controllers where debug accessibility and analog fidelity are prioritized.

Availability

TM4C1233H6PZI is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, USB-capable data loggers, and motor control edge nodes requiring stable component supply across long production lifecycles.

Supply support for TM4C1233H6PZI 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets since 1930.

The TM4C1233H6PZI belongs to TI's Tiva C Series microcontroller family, designed specifically for cost-sensitive, real-time embedded applications demanding USB connectivity, analog integration, and robust low-power operation in harsh environments.

FAQ

What is the maximum operating frequency of the TM4C1233H6PZI?

The TM4C1233H6PZI operates at a maximum CPU frequency of 80 MHz, achieved using its internal PLL with a 16-MHz crystal or external clock source. This frequency is fully supported across the full industrial temperature range (–40°C to +85°C) and enables deterministic real-time execution of control loops and communication stacks. The TM4C1233H6PZI maintains timing compliance without derating under worst-case voltage and temperature conditions.

Does the TM4C1233H6PZI include an integrated USB physical layer (PHY)?

Yes, the TM4C1233H6PZI integrates a full-speed USB 2.0 OTG PHY compliant with USB specification revision 2.0. It supports both host and device modes without requiring an external transceiver. The USB D+ and D− pins (PD0/PD1) are routed internally to the PHY, enabling direct connection to USB connectors with appropriate ESD protection. This integration is confirmed in Section 1.3.3 and Figure 1-3 of the TM4C1233H6PZI datasheet SPMS352E.

What is the hibernate current consumption of the TM4C1233H6PZI, and what features remain active?

The TM4C1233H6PZI achieves a hibernate current of 1.7 µA while maintaining RTC operation, battery-backed RAM (2 KB), and wake-up capability via RTC match or external pin. In this mode, the main oscillator, flash, SRAM, and most peripherals are powered down. The hibernation module retains state independently using VBAT or a backup battery, and wake-up latency is under 10 µs. This value is measured and specified in Section 7.3.7 of the SPMS352E datasheet.

How many ADC channels does the TM4C1233H6PZI support, and what is its resolution?

The TM4C1233H6PZI supports 12 single-ended or 6 differential analog input channels using its 12-bit successive approximation register (SAR) ADC. It achieves up to 1 million samples per second (1-MSPS) with hardware averaging and programmable sample-and-hold timing. Channel selection is managed via four independent sample sequencers, allowing flexible trigger sources including timers and processor events - as detailed in Section 13.3.1 of the SPMS352E datasheet.

Is the TM4C1233H6PZI pin-compatible with other Tiva C Series microcontrollers?

No, the TM4C1233H6PZI is not pin-compatible with other Tiva C Series parts such as TM4C123GH6PM or TM4C1294NCPDT due to differences in package (100-pin LQFP vs 64-pin or 128-pin), peripheral mapping, and pin multiplexing. For example, USB D+/D− are assigned to PD0/PD1 on TM4C1233H6PZI but differ on other variants. Migration requires PCB redesign and firmware adaptation - verified against TI's Tiva™ C Series Selection Guide and package drawings in SPMS352E.