TM4C1232H6PMI7 - Tiva C ARM Cortex-M4F MCU 80MHz 256KB | Texas Instruments
MPN: TM4C1232H6PMI7 ✓ Hoạt độngTM4C1232H6PMI7 Tóm tắt
The Tiva C Series microcontroller family is a high-performance 32-bit ARM Cortex-M4F based MCU platform engineered for industrial applications, including remote monitoring, electronic point-of-sale (POS) terminals, test and measurement equipment, network appliances and switches, factory automation, HVAC and building control, gaming equipment, transportation, and fire/security systems. It belongs to the broader ARM Cortex-M microcontroller family and competes in the high-performance Cortex-M4 tier with floating-point DSP instructions, distinguishing it from Cortex-M0/M0+ entry-level parts and Cortex-M7 high-end parts.
Key features include hardware single-precision FPU, JTAG and SWD debug interfaces, hibernation module with RTC, two 12-bit ADC modules (1 MSPS), two I2C controllers, four SSI/SPI controllers, and a wide operating voltage range from 3.15 V to 3.63 V with industrial -40°C to +85°C extended temperature grade (the "I7" suffix indicates industrial temperature range and 7 RoHS-compliant lead-free finish). The device's 256 KB flash supports in-field firmware updates via the on-chip ROM-bootloader or the user-software bootloader in flash.
Technically, the TM4C1232H6PMI7 uses a Cortex-M4F core with optional Memory Protection Unit (MPU) and a nested vectored interrupt controller (NVIC) supporting deterministic interrupt latency for real-time control loops. The integration of MAC+PHY-less USB Device and CAN enables robust industrial connectivity without external transceiver chips, while the µDMA engine supports scatter-gather transfers that offload data movement from the CPU.
Typical applications include industrial control PLCs, building automation HVAC controllers, USB peripherals (HID, CDC, MSC classes), motor control for BLDC/stepper drivers, and networked sensor hubs in factory automation. The "I7" industrial temperature grade and extended reliability tests suit it for harsh industrial environments requiring long operational life.
Design consideration: with 64 GPIO pins, careful pin-mux configuration is required via the GPIO Port Control (GPIO_PCTL) registers, and unused pins should be configured as digital inputs with weak pulldown to reduce power. The internal 1.2 V LDO requires bulk decoupling on VDD pins (a 1 µF + 100 nF pair), and the analog VDDA must be tied to VDD with a ferrite bead for ADC noise isolation.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, giving engineering and procurement teams a faster path from selection to BOM.
Bộ thay thế dễ dàng lắp đặt cho TM4C1232H6PMI7 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TM4C1232H6PMI7 (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core Architecture, Flash Memory, MSL Level.
TM4C123GH6PMI7
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TM4C1233H6PMI7
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TM4C1237H6PMI7
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32F401VCH6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32F411VCT6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TM4C1232H6PMI7 Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4F (32-bit) |
| Tần số xung maksimum | 80 MHz |
| Floating Point Unit | Single-precision FPU (IEEE 754) |
| Program Memory (Flash) | 256 KB (256K x 8) |
| SRAM | 32 KB |
| Operating Voltage (VDD) | 3.15 V to 3.63 V |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial, "I7" grade) |
| Hộp | 64-pin LQFP (PM) 10x10 mm |
| CAN Controllers | 1 x CAN 2.0 A/B |
| USB Interface | USB 2.0 Full-Speed Device (USB-D), no Host/OTG |
| ADC | 2 x 12-bit, 1 MSPS |
| I2C Controllers | 2 |
| SSI/SPI Controllers | 4 |
| DMA Engine | MicroDMA (uDMA) with scatter-gather |
| Debug Interface | JTAG and SWD (Serial Wire Debug) |
| Hibernation Module | Yes (RTC + battery domain) |
| Trạng thái RoHS | Compliant (lead-free) |
| Cấp MSL | MSL3 (per JEDEC J-STD-020, reflow 260 C peak) |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân TM4C1232H6PMI7
| Chân 1 | VDD — I/O supply voltage (3.3 V) |
| Chân 2 | GND — Ground reference for VDD |
| Chân 3 | VDDC — Core voltage (internal LDO output), bypass with 1 uF |
| Chân 4 | XTALN — Main oscillator negative input |
| Chân 5 | XTALP — Main oscillator positive input |
| Chân 6 | GND — Ground reference for oscillator |
| Chân 7 | OSC0 — Main oscillator output |
| Chân 8 | OSC1 — Main oscillator input |
| Chân 9 | RST — Reset input, active low |
| Chân 10 | GND — Ground |
| Chân 11 | WAKE — Hibernate wake input |
| Chân 12 | HIBERNATE — Hibernate request, active low |
| Chân 13 | XOSC0 — Hibernation module 32.768 kHz oscillator |
| Chân 14 | XOSC1 — Hibernation module 32.768 kHz oscillator |
| Chân 15 | VBAT — Battery domain supply for hibernation |
| Chân 16 | VDD — I/O supply voltage (3.3 V) |
| Chân 17 | GND — Ground |
| Chân 18 | JTAG_TCK/SWCLK — JTAG TCK / SWD clock |
| Chân 19 | JTAG_TMS/SWDIO — JTAG TMS / SWD data I/O |
| Chân 20 | JTAG_TDI — JTAG TDI |
| Chân 21 | JTAG_TDO/SWO — JTAG TDO / SWO trace |
| Chân 22 | GND — Ground |
| Chân 23 | VDD — I/O supply voltage (3.3 V) |
| Chân 24 | PE0 — GPIO port E, bit 0 (multi-function) |
| Chân 25 | PE1 — GPIO port E, bit 1 (multi-function) |
| Chân 26 | PE2 — GPIO port E, bit 2 (multi-function) |
| Chân 27 | PE3 — GPIO port E, bit 3 (multi-function) |
| Chân 28 | PE4 — GPIO port E, bit 4 (multi-function) |
| Chân 29 | PE5 — GPIO port E, bit 5 (multi-function) |
| Chân 30 | VDD — I/O supply voltage (3.3 V) |
| Chân 31 | GND — Ground |
| Chân 32 | PA0 — GPIO port A, bit 0 (UART0 Rx) |
| Chân 33 | PA1 — GPIO port A, bit 1 (UART0 Tx) |
| Chân 34 | PA2 — GPIO port A, bit 2 (SSI0 Clk) |
| Chân 35 | PA3 — GPIO port A, bit 3 (SSI0 Fss) |
| Chân 36 | PA4 — GPIO port A, bit 4 (SSI0 Rx) |
| Chân 37 | PA5 — GPIO port A, bit 5 (SSI0 Tx) |
| Chân 38 | PA6 — GPIO port A, bit 6 (I2C1 SCL) |
| Chân 39 | PA7 — GPIO port A, bit 7 (I2C1 SDA) |
| Chân 40 | VDD — I/O supply voltage (3.3 V) |
| Chân 41 | GND — Ground |
| Chân 42 | PB0 — GPIO port B, bit 0 (UART1 Rx) |
| Chân 43 | PB1 — GPIO port B, bit 1 (UART1 Tx) |
| Chân 44 | PB2 — GPIO port B, bit 2 (I2C0 SCL) |
| Chân 45 | PB3 — GPIO port B, bit 3 (I2C0 SDA) |
| Chân 46 | PB4 — GPIO port B, bit 4 (multi-function) |
| Chân 47 | PB5 — GPIO port B, bit 5 (multi-function) |
| Chân 48 | PB6 — GPIO port B, bit 6 (multi-function) |
| Chân 49 | PB7 — GPIO port B, bit 7 (multi-function) |
| Chân 50 | VDD — I/O supply voltage (3.3 V) |
| Chân 51 | GND — Ground |
| Chân 52 | PC0 — GPIO port C, bit 0 (JTAG_TCK alt) |
| Chân 53 | PC1 — GPIO port C, bit 1 (JTAG_TMS alt) |
| Chân 54 | PC2 — GPIO port C, bit 2 (JTAG_TDI alt) |
| Chân 55 | PC3 — GPIO port C, bit 3 (JTAG_TDO alt) |
| Chân 56 | PC4 — GPIO port C, bit 4 (multi-function) |
| Chân 57 | PC5 — GPIO port C, bit 5 (multi-function) |
| Chân 58 | PC6 — GPIO port C, bit 6 (multi-function) |
| Chân 59 | PC7 — GPIO port C, bit 7 (multi-function) |
| Chân 60 | VDD — I/O supply voltage (3.3 V) |
| Chân 61 | GND — Ground |
| Chân 62 | PD0 — GPIO port D, bit 0 (multi-function) |
| Chân 63 | PD1 — GPIO port D, bit 1 (multi-function) |
| Chân 64 | PD2 — GPIO port D, bit 2 (multi-function) |
Ứng dụng tiêu biểu
TM4C1232H6PMI7 phù hợp cho 6 Áp dụngs: Industrial PLC and Remote Monitoring, Electronic Point-of-Sale (POS) Terminal, USB HID / CDC / MSC Peripheral Device, Building Automation - HVAC Controller, Test and Measurement Equipment, Network Appliance and Switch (Edge Node).
Industrial PLC and Remote Monitoring
The TM4C1232H6PMI7 fits industrial PLC and remote-monitoring nodes thanks to its ARM Cortex-M4F core with FPU at 80 MHz (sufficient for IEC 61131-3 logic-scan loops), 256 KB Flash for ladder-logic runtimes, and 32 KB SRAM for tag databases. The integrated CAN 2.0 A/B controller supports CANopen and DeviceNet slave connectivity without an external transceiver's logic-level translation. USB-Device enables firmware upload and HMI configuration via a maintenance port. The industrial -40 C to +85 C temperature grade and integrated hibernation module with RTC permit unattended deployment in outdoor enclosures with battery-backed RTC timestamping for telemetry events.
Được đề xuất
Electronic Point-of-Sale (POS) Terminal
The TM4C1232H6PMI7 suits compact POS terminals because its Cortex-M4F FPU accelerates crypto and PCI-PTS card-handling algorithms, while 256 KB Flash accommodates card-reader firmware plus EMV kernel. USB-Device serves the upstream link to the POS terminal host. The hibernation module with RTC enables scheduled wake-from-sleep for batched transaction uploads, keeping quiescent power low between customer interactions. The 64-pin LQFP (PM) 10x10 mm footprint provides enough GPIO for keypad scanning, LCD driving via SSI/SPI, and tamper-switch inputs. The industrial temperature range survives the elevated ambient inside POS enclosures where the printer and power supply dissipate heat.
Được đề xuất
USB HID / CDC / MSC Peripheral Device
The TM4C1232H6PMI7 is ideal for USB peripherals (HID input devices, CDC virtual COM ports, and MSC mass-storage class) because it integrates a USB 2.0 Full-Speed Device controller plus the TivaWare USB library. The Cortex-M4F at 80 MHz executes USB protocol stacks and application code simultaneously, while 32 KB SRAM buffers HID reports and CDC line-codes without CPU stall. The µDMA engine offloads bulk transfers in MSC class to maintain throughput while the CPU runs the file-system stack. The LQFP-64 package's GPIO budget is sufficient for multi-channel button or sensor inputs in custom HID peripherals, and the industrial temperature grade suits outdoor and automotive-cab USB peripherals.
Được đề xuất
Building Automation - HVAC Controller
The TM4C1232H6PMI7 fits building-automation HVAC controllers thanks to its Cortex-M4F DSP extensions that execute PID loops and climate-control math at 80 MHz with single-cycle MAC throughput. The 12-bit 1 MSPS ADC reads temperature and humidity sensors for zone-level climate decisions, while the SSI/SPI peripherals drive isolated HVAC actuator drivers. The 256 KB Flash accommodates multi-zone logic with onboard scheduling, and the hibernation module with RTC supports time-of-day tariff optimization and battery-backed timekeeping across power-loss events. The -40 C to +85 C temperature grade handles rooftop equipment enclosures that see large diurnal swings, and the integrated CAN enables BACnet MS-TP or vendor-specific HVAC buses.
Được đề xuất
Test and Measurement Equipment
The TM4C1232H6PMI7 is well-matched to portable test and measurement instruments because its Cortex-M4F FPU accelerates FFT and signal-conditioning math, while the 12-bit 1 MSPS ADC captures sensor waveforms at sufficient bandwidth for vibration, strain-gauge, and current-probe applications. The 256 KB Flash holds calibration tables and instrument firmware, while 32 KB SRAM buffers sample windows before USB-Device upload. The hibernation module enables battery-only operation for handheld instruments with low standby current. The LQFP-64 footprint provides enough GPIO for rotary-encoder inputs, keypad scanning, and LCD driving via SSI/SPI. The industrial temperature grade meets MIL-STD-810 portable equipment requirements in field environments.
Được đề xuất
Network Appliance and Switch (Edge Node)
The TM4C1232H6PMI7 supports edge-node network appliances and managed-switch control planes where its CAN and USB-Device simplify housekeeping and management interfaces. The Cortex-M4F at 80 MHz handles L2/L3 housekeeping protocols, SNMP agents, and switch-management telemetry with deterministic interrupt latency. The 256 KB Flash supports feature-rich switch firmware stacks, and 32 KB SRAM is sufficient for ARP/MAC-table caching in small managed switches. The hibernation module supports PoE-class power-down behavior for energy-efficient edge nodes, and the -40 C to +85 C industrial temperature grade handles outdoor cabinet deployments without additional thermal management.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TM4C1232H6PMI7 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | TM4C123GH6PMI7 | TM4C1233H6PMI7 | TM4C1237H6PMI7 | STM32F401VCH6 | STM32F411VCT6 |
|---|---|---|---|---|---|---|
| Package | 64-pin LQFP (PM) 10x10 mm | 64-pin LQFP (PM) 10x10 mm - same | 64-pin LQFP (PM) 10x10 mm - same | 64-pin LQFP (PM) 10x10 mm - same | 64-pin LQFP - same footprint | 64-pin LQFP - same footprint |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | STMicroelectronics | STMicroelectronics |
| Core | ARM Cortex-M4F 80 MHz | ARM Cortex-M4F 80 MHz | ARM Cortex-M4F 80 MHz | ARM Cortex-M4F 80 MHz | ARM Cortex-M4F 84 MHz (+5%) | ARM Cortex-M4F 100 MHz (+25%) |
| Flash | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 64 KB (+100%) | 128 KB (+300%) |
| CAN Controllers | 1 | 2 (+100%) | 2 (+100%) | 2 (+100%) | 1 | 1 |
| USB Interface | USB 2.0 FS Device only | USB Host/Device/OTG (superset) | USB Host/Device/OTG | USB Host/Device/OTG | USB OTG | USB OTG |
| Operating Temperature | -40 C to +85 C (industrial "I7") | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
| Hibernation Module | Yes | Yes | Yes | Yes | No | No |
Bảo phân biệt quan trọng
- Hibernation module with battery-backed RTC (vsSTM32F401VCH6)
- Two decades of industrial-grade longevity (vsTM4C1233H6PMI7)
- Cortex-M4F FPU with deterministic NVIC (vsSTM32F401VCH6)
Ghi chú thiết kế
The TM4C1232H6PMI7 has multiple VDD and GND pins that must each be decoupled with a 100 nF ceramic capacitor placed as close to the pin as possible (within 3 mm). Add a bulk 4.7 uF or 10 uF ceramic on each VDD pair. The internal VDDC LDO output pin requires 1 uF + 100 nF local decoupling. VDDA and VREFA must be tied to VDD with a ferrite bead to isolate the analog supply from digital switching noise - critical for ADC accuracy.
GPIO pins default to analog functions after reset; configure GPIO_PCTL, GPIO_AFSEL, GPIO_DEN, and GPIO_DIR registers before using any digital pin. Unused pins must be configured as digital inputs with weak pulldown to minimize current consumption. JTAG pins (PC0-PC3) are configured for JTAG after reset by default - to use them as GPIO, set GPIO_PCTL to 0x0 and configure GPIO_AFSEL accordingly, but you then lose JTAG access.
Estimated: at maximum CPU activity (80 MHz, peripherals active), the TM4C1232H6PMI7 consumes approximately 100 mA from VDD, which dissipates ~0.33 W at 3.3 V. With the 64-pin LQFP (PM) package thermal resistance (theta_JA) of approximately 50 C/W (typical JEDEC EIA/JESD51 4-layer PCB), the junction temperature rise above ambient is roughly 16 C - well within the industrial +85 C maximum. For designs at +85 C ambient, derate clock speed to keep junction below +125 C.
Route the 80 MHz main crystal traces (XTALP/XTALN) as short as possible (under 10 mm) and keep them symmetric, with a ground guard ring around the crystal and load capacitors. Place the 32.768 kHz hibernation crystal (XOSC0/XOSC1) close to the HIB pins with its own ground reference to avoid coupling RTC noise into the main oscillator. For USB-Device, place 22 ohm series termination resistors on DP/DN lines close to the MCU pins and route DP/DN as a 90-ohm differential pair.
Thông tin tuân thủ
RoHS compliant per TI product page. Industrial temperature grade (-40 C to +85 C), lead-free (per the "I7" suffix decode). Not AEC-Q100 qualified - choose TM4C123GH6PMI7-Q1 for AEC-Q100 automotive applications.
