TM4C1237H6PZI - 80MHz ARM Cortex-M4F MCU 256KB Flash | TI
MPN: TM4C1237H6PZI ✓ نشطTM4C1237H6PZI نظرة عامة
An ARM Cortex-M4F microcontroller is a 32-bit MCU core built around the ARMv7-M architecture with hardware single-precision floating-point support, Thumb-2 instruction set, deterministic interrupt handling (NVIC), and tightly-coupled low-latency memory interfaces. In the broader taxonomy, the Cortex-M4F belongs to: Cortex-M4 -> Cortex-M family -> ARMv7-M processors -> 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. Tiva C Series MCUs sit in TI's general-purpose 32-bit MCU portfolio, alongside MSP432, Sitara, and Hercules safety MCUs.
Key features of the TM4C1237H6PZI include 8 UART, 4 SSI/SPI, 4 I2C, 2 CAN, 1 USB, two 12-bit 1-MSPS ADC modules (totaling up to 24 channels), six 64-bit and six 32-bit general-purpose timers, eight PWM outputs, three quadrature encoder interfaces, and a low-pin-count LCD interface on related derivatives. The 80-MHz system clock and single-cycle memory accesses deliver 100 DMIPS of throughput, while the integrated FPU accelerates DSP and control-loop math.
Typical applications span industrial remote monitoring, electronic point-of-sale machines, test and measurement equipment, network appliances and switches, factory automation, HVAC and building control, gaming equipment, transportation, and fire/security systems. The combination of CAN and USB makes it a strong fit for industrial gateways; the RTC plus Hibernation module supports battery-backed timekeeping for metering.
When designing with this part, ensure the LDO and I/O supply rails are sequenced within the datasheet limits, observe the 100-pin LQFP 1.4 mm thickness for mechanical clearance, and validate that the application's pin multiplexing matches the selected peripheral set.
بدائل مباشرة لـ TM4C1237H6PZI — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع TM4C1237H6PZI (نفس عامل الشكل والبصمة) — يختلف في ADC, Package, Mounting Type, Core Architecture, FPU.
TM4C1237H6PZIR
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
TM4C1237H6PMI
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
TM4C1233H6PZI
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
TM4C1231H6PZI
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
TM4C1230H6PZI
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
TM4C1237H6PZI الحدود القصوى والخصائص الكهربائية
| Core Architecture | ARM Cortex-M4F (32-bit, with FPU) |
| أقصى تردد للساعة | 80 MHz |
| Program Memory (Flash) | 256 KB |
| SRAM | 32 KB |
| العلبة | 100-pin LQFP (PZ), 14x14 mm |
| درجة حرارة التشغيل | -40C to +85C (industrial) |
| Supply Voltage (VDD) | 3.3 V (3.0 V to 3.6 V) |
| I/O Count | Up to 69 GPIO |
| ADC | 2 x 12-bit, up to 1 MSPS, up to 24 channels |
| CAN | 2 x CAN 2.0 A/B |
| USB | 1 x USB 2.0 Full-Speed (Host/Device/OTG) |
| UART | 8 |
| SSI/SPI | 4 |
| I2C | 4 |
| PWM Outputs | 8 |
| Timers | 6 x 64-bit + 6 x 32-bit |
| RTC / Hibernation | Yes, integrated RTC + Hibernation module |
| Memory Protection Unit | Yes (MPU) |
| FPU | IEEE 754 single-precision hardware FPU |
| حالة RoHS | Compliant |
| نوع التركيب | Surface Mount |
تكوين أطراف TM4C1237H6PZI
| دبوس 1 | VDD — I/O supply voltage (3.3V) |
| دبوس 2 | PA0/U0RX — GPIO PA0 / UART0 receive |
| دبوس 3 | PA1/U0TX — GPIO PA1 / UART0 transmit |
| دبوس 4 | PA2/SSI0CLK — GPIO PA2 / SSI0 clock |
| دبوس 5 | PA3/SSI0FSS — GPIO PA3 / SSI0 frame |
| دبوس 6 | PA4/SSI0RX — GPIO PA4 / SSI0 receive |
| دبوس 7 | PA5/SSI0TX — GPIO PA5 / SSI0 transmit |
| دبوس 8 | VDD — I/O supply voltage |
| دبوس 9 | GND — Ground |
| دبوس 10 | PA6/I2C1SCL — GPIO PA6 / I2C1 clock |
| دبوس 11 | PA7/I2C1SDA — GPIO PA7 / I2C1 data |
| دبوس 12 | PB0/U1RX — GPIO PB0 / UART1 receive |
| دبوس 13 | PB1/U1TX — GPIO PB1 / UART1 transmit |
| دبوس 14 | PB2/I2C0SCL — GPIO PB2 / I2C0 clock |
| دبوس 15 | PB3/I2C0SDA — GPIO PB3 / I2C0 data |
| دبوس 16 | PB4/C0- — GPIO PB4 / ADC0 channel 0 negative |
| دبوس 17 | PB5/C0+ — GPIO PB5 / ADC0 channel 0 positive |
| دبوس 18 | PB6/C1- — GPIO PB6 / ADC0 channel 1 negative |
| دبوس 19 | PB7/C1+ — GPIO PB7 / ADC0 channel 1 positive |
| دبوس 20 | VDD — I/O supply voltage |
| دبوس 21 | GND — Ground |
| دبوس 22 | PC0/TCK/SWCLK — GPIO PC0 / JTAG TCK / SWD clock |
| دبوس 23 | PC1/TMS/SWDIO — GPIO PC1 / JTAG TMS / SWD I/O |
| دبوس 24 | PC2/TDI — GPIO PC2 / JTAG TDI |
| دبوس 25 | PC3/TDO/SWO — GPIO PC3 / JTAG TDO / SWO trace |
| دبوس 26 | PC4/C2- — GPIO PC4 / ADC0 channel 2 negative |
| دبوس 27 | PC5/C2+ — GPIO PC5 / ADC0 channel 2 positive |
| دبوس 28 | PC6/C3- — GPIO PC6 / ADC0 channel 3 negative |
| دبوس 29 | PC7/C3+ — GPIO PC7 / ADC0 channel 3 positive |
| دبوس 30 | VDD — I/O supply voltage |
| دبوس 31 | GND — Ground |
| دبوس 32 | PD0/CAN0RX — GPIO PD0 / CAN0 receive |
| دبوس 33 | PD1/CAN0TX — GPIO PD1 / CAN0 transmit |
| دبوس 34 | PD2/U2RX — GPIO PD2 / UART2 receive |
| دبوس 35 | PD3/U2TX — GPIO PD3 / UART2 transmit |
| دبوس 36 | PD4/USB0DM — GPIO PD4 / USB0 D-minus |
| دبوس 37 | PD5/USB0DP — GPIO PD5 / USB0 D-plus |
| دبوس 38 | PD6/C2O — GPIO PD6 / Analog comparator 2 output |
| دبوس 39 | PD7/C1O — GPIO PD7 / Analog comparator 1 output |
| دبوس 40 | VDD — I/O supply voltage |
| دبوس 41 | GND — Ground |
| دبوس 42 | PE0/U3RX — GPIO PE0 / UART3 receive |
| دبوس 43 | PE1/U3TX — GPIO PE1 / UART3 transmit |
| دبوس 44 | PE2/CAN1RX — GPIO PE2 / CAN1 receive |
| دبوس 45 | PE3/CAN1TX — GPIO PE3 / CAN1 transmit |
| دبوس 46 | PE4/U4RX — GPIO PE4 / UART4 receive |
| دبوس 47 | PE5/U4TX — GPIO PE5 / UART4 transmit |
| دبوس 48 | PE6/U5RX — GPIO PE6 / UART5 receive |
| دبوس 49 | PE7/U5TX — GPIO PE7 / UART5 transmit |
| دبوس 50 | VDD — I/O supply voltage |
| دبوس 51 | GND — Ground |
| دبوس 52 | PF0/PWM0 — GPIO PF0 / PWM0 output |
| دبوس 53 | PF1/PWM1 — GPIO PF1 / PWM1 output |
| دبوس 54 | PF2/PWM2 — GPIO PF2 / PWM2 output |
| دبوس 55 | PF3/PWM3 — GPIO PF3 / PWM3 output |
| دبوس 56 | PF4/C0O — GPIO PF4 / Analog comparator 0 output |
| دبوس 57 | VDD — I/O supply voltage |
| دبوس 58 | GND — Ground |
| دبوس 59 | PG0/U2RX — GPIO PG0 / UART2 receive |
| دبوس 60 | PG1/U2TX — GPIO PG1 / UART2 transmit |
| دبوس 61 | PG2/I2C1SCL — GPIO PG2 / I2C1 clock |
| دبوس 62 | PG3/I2C1SDA — GPIO PG3 / I2C1 data |
| دبوس 63 | PG4/U1RX — GPIO PG4 / UART1 receive |
| دبوس 64 | PG5/U1TX — GPIO PG5 / UART1 transmit |
| دبوس 65 | PG6/U0RX — GPIO PG6 / UART0 receive |
| دبوس 66 | PG7/U0TX — GPIO PG7 / UART0 transmit |
| دبوس 67 | PH0/U7RX — GPIO PH0 / UART7 receive |
| دبوس 68 | PH1/U7TX — GPIO PH1 / UART7 transmit |
| دبوس 69 | PH2/SSI3CLK — GPIO PH2 / SSI3 clock |
| دبوس 70 | PH3/SSI3FSS — GPIO PH3 / SSI3 frame |
| دبوس 71 | PH4/SSI3RX — GPIO PH4 / SSI3 receive |
| دبوس 72 | PH5/SSI3TX — GPIO PH5 / SSI3 transmit |
| دبوس 73 | VDD — I/O supply voltage |
| دبوس 74 | GND — Ground |
| دبوس 75 | PJ0/U6RX — GPIO PJ0 / UART6 receive |
| دبوس 76 | PJ1/U6TX — GPIO PJ1 / UART6 transmit |
| دبوس 77 | PJ2/U5RX — GPIO PJ2 / UART5 receive |
| دبوس 78 | PJ3/U5TX — GPIO PJ3 / UART5 transmit |
| دبوس 79 | PJ4/U4RX — GPIO PJ4 / UART4 receive |
| دبوس 80 | PJ5/U4TX — GPIO PJ5 / UART4 transmit |
| دبوس 81 | PJ6/U3RX — GPIO PJ6 / UART3 receive |
| دبوس 82 | PJ7/U3TX — GPIO PJ7 / UART3 transmit |
| دبوس 83 | PK0/U4RX — GPIO PK0 / UART4 receive |
| دبوس 84 | PK1/U4TX — GPIO PK1 / UART4 transmit |
| دبوس 85 | PK2/U3RX — GPIO PK2 / UART3 receive |
| دبوس 86 | PK3/U3TX — GPIO PK3 / UART3 transmit |
| دبوس 87 | PL0/I2C2SCL — GPIO PL0 / I2C2 clock |
| دبوس 88 | PL1/I2C2SDA — GPIO PL1 / I2C2 data |
| دبوس 89 | PL2/C0- — GPIO PL2 / ADC0 channel 0 negative |
| دبوس 90 | PL3/C0+ — GPIO PL3 / ADC0 channel 0 positive |
| دبوس 91 | PL4/C1- — GPIO PL4 / ADC0 channel 1 negative |
| دبوس 92 | PL5/C1+ — GPIO PL5 / ADC0 channel 1 positive |
| دبوس 93 | VDDC — Core supply (LDO output, requires cap) |
| دبوس 94 | VDD — I/O supply voltage |
| دبوس 95 | VDDA — Analog supply voltage |
| دبوس 96 | GND — Ground |
| دبوس 97 | OSC0 — Main oscillator crystal input / single-ended clock input |
| دبوس 98 | OSC1 — Main oscillator crystal output |
| دبوس 99 | WAKE — Hibernation wake input |
| دبوس 100 | RST — Reset input (active low) |
التطبيقات النموذجية
TM4C1237H6PZI مناسب لـ 6 التطبيقs: Industrial Remote Monitoring, Electronic Point-of-Sale (POS) Terminals, Test and Measurement Equipment, Network Appliances and Switches, HVAC and Building Control, Fire and Security Alarm Panels.
Industrial Remote Monitoring
The TM4C1237H6PZI is well matched to industrial remote monitoring nodes: the 80 MHz Cortex-M4F core plus hardware FPU executes sensor-fusion and FFT filtering for vibration/temperature streams, the dual 12-bit 1-MSPS ADC samples analog sensor channels with deterministic latency, and the integrated RTC plus Hibernation module enables years of battery life on duty-cycled wake-sleep cycles. The -40C to +85C industrial grade handles outdoor cabinet installations. Place the MCU between a 24 V-to-3.3 V isolated DC-DC and an RS-485 or CAN link; unlike a higher-end Cortex-M7 it remains inexpensive while delivering the throughput needed for multi-channel telemetry, and unlike an 8-bit MCU the Cortex-M4F DSP instructions avoid a separate DSP chip on the BOM.
موصى به
Electronic Point-of-Sale (POS) Terminals
Point-of-sale terminals rely on the TM4C1237H6PZI's USB 2.0 Full-Speed controller for barcode scanner and printer interfaces, the 8 UART for legacy cash-drawer and receipt-printer ports, and the hardware FPU for fast price-encryption arithmetic. With 256 KB Flash the device holds the full TivaWare stack plus custom firmware; the 32 KB SRAM covers TLS handshake scratch buffers without external memory. The Cortex-M4F runs a real-time RTOS layer for transaction determinism while keeping unit cost in the sub-$7 BOM range.
موصى به
Test and Measurement Equipment
Bench instruments such as handheld multimeters, oscilloscope front ends, and signal-generator modules adopt the TM4C1237H6PZI for its dual 1-MSPS 12-bit ADCs (24 channels total), six 64-bit timers for precise trigger logic, and SSI/SPI ports for high-resolution DAC control. The hardware FPU accelerates RMS and FFT math for power-quality analysis. With 80 MHz core speed and deterministic single-cycle Flash, sample-to-display latency is well under 1 ms - critical for a true-RMS handheld DMM.
موصى به
Network Appliances and Switches
Small business routers, smart switches, and protocol-converter gateways benefit from the TM4C1237H6PZI's dual CAN 2.0 controllers (industrial fieldbus bridging), USB Full-Speed (4G/LTE dongle), and 80 MHz Cortex-M4F core running lwIP TCP/IP stack. The hibernation module plus RTC enables scheduled packet capture with sub-microamp standby draw. Memory protection unit (MPU) provides separation between management and data-plane firmware for security hardening in managed-switch firmware.
موصى به
HVAC and Building Control
Building automation controllers use the TM4C1237H6PZI to drive multiple closed-loop fan/valve actuators via its 8 PWM outputs and 3 quadrature encoder inputs for damper position feedback. The six 64-bit timers generate accurate PID tick rates for thermal control loops, and the CAN interface interconnects boiler, chiller, and AHU controllers on a single backbone. Industrial temperature rating ensures stable operation in unconditioned mechanical rooms.
موصى به
Fire and Security Alarm Panels
Fire alarm panels and intrusion-detection systems rely on the TM4C1237H6PZI's RTC plus hibernation module for always-on timekeeping, its hardware FPU for fast signal processing of glass-break and PIR sensor waveforms, and its 24 ADC channels for loop-powered smoke-detector supervision. The 256 KB Flash stores zone configuration plus event log with secure rollback, and the -40C to +85C rating covers unheated attic installations. The watchdog timer plus hardware CRC unit provides fail-safe integrity checks required by EN 54 alarm standards.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ TM4C1237H6PZI — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | TM4C1237H6PZIR | TM4C1237H6PMI | TM4C1233H6PZI | TM4C1231H6PZI | TM4C1230H6PZI |
|---|---|---|---|---|---|---|
| Package | 100-pin LQFP (PZ) 14x14mm | 100-pin LQFP (PZ) - same | 100-pin LQFP (PM) - same footprint | 100-pin LQFP (PZ) - same | 100-pin LQFP (PZ) - same | 100-pin LQFP (PZ) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Core | ARM Cortex-M4F @ 80 MHz | ARM Cortex-M4F @ 80 MHz - same | ARM Cortex-M4F @ 80 MHz - same | ARM Cortex-M4F @ 80 MHz - same | ARM Cortex-M4F @ 80 MHz - same | ARM Cortex-M4F @ 80 MHz - same |
| Flash | 256 KB | 256 KB - same | 256 KB - same | 256 KB - same | 256 KB - same | 256 KB - same |
| SRAM | 32 KB | 32 KB - same | 32 KB - same | 32 KB - same | 32 KB - same | 32 KB - same |
| USB 2.0 FS | Yes | Yes - same | Yes - same | No | No | No |
| CAN 2.0 | 2 | 2 - same | 2 - same | 2 - same | No | No |
| ADC | 2 x 12-bit, 24 ch | 2 x 12-bit, 24 ch - same | 2 x 12-bit, 24 ch - same | 2 x 12-bit, 24 ch - same | 2 x 12-bit, 24 ch - same | No |
| Temperature Range | -40C to +85C (industrial) | -40C to +85C - same | -40C to +85C - same | -40C to +85C - same | -40C to +85C - same | -40C to +85C - same |
| Unit Price (qty 1, ref) | $11.48 | Similar ($11.48) | Similar ($11.48) | Lower (no USB) | Lower (no USB/CAN) | Lower (no USB/CAN/ADC) |
أبرز الفروقات
- Highest peripheral density in TM4C123x family with USB + dual CAN (مقابلTM4C1233H6PZI)
- Full Tiva peripheral set with dual CAN plus USB plus dual ADC (مقابلTM4C1231H6PZI)
- Industrial-grade temp range plus RTC and Hibernation module (مقابلTM4C1230H6PZI)
ملاحظات التصميم
TM4C1237H6PZI requires a single 3.0 V to 3.6 V supply on VDD and VDDA; VDDA must track VDD within +/- 0.3 V per datasheet to keep ADC accuracy in spec. Place a 0.1 uF decoupling cap as close as possible to each VDD pin, plus a 4.7 uF bulk cap on the VDDC pin (the internal LDO output for the core). Estimated: total quiescent current is approximately 100 mA at 80 MHz with all peripherals active; derate to 0.5 mA in Hibernation mode for battery-backed RTC operation.
Use a 4-layer PCB with continuous ground plane beneath the LQFP-100 footprint to minimize EMI and provide thermal spreading. The 14x14 mm LQFP-100 package has a junction-to-ambient thermal resistance (theta_JA) around 43 C/W on a 4-layer JEDEC test board; estimated at 80 MHz full-load the device dissipates roughly 200 mW, yielding a self-heating rise of approximately 9 C above ambient - well within the 85 C industrial ceiling. Keep the high-speed USB differential pair (PD4/PD5) length-matched to within 2 mm and 90 ohm differential impedance per USB 2.0 spec.
The TM4C1237H6PZI's JTAG/SWD pins are multiplexed with GPIO port C; if a debugger is left connected in production firmware the bootloader state can interfere with GPIO operation on reset. Always reconfigure PC0-PC3 to GPIO with internal pull-ups in the GPIO_PORTC_AFSEL_CLR, GPIO_PORTC_PUR_SET register sequence before enabling port C interrupts. The hibernation module's VBAT and WAKE pins require a separate coin-cell supply; do not tie VBAT to VDD or the RTC will drain the main supply during deep sleep.
For designs using the USB 2.0 Full-Speed controller, place the 22 ohm source-series resistors on D+/D- within 4 mm of pins PD4/PD5, and add a 1 uF bulk capacitor on the USB VBUS sense pin. The CAN bus pins (PD0/PD1, PE2/PE3) need an external CAN transceiver (e.g. TCAN1044DRQ1 or TJF1051T/3) - the MCU does not include bus-side differential drivers. Estimated: signal integrity holds for CAN traces up to 1 m at 1 Mbps on a 4-layer board with controlled 120 ohm differential impedance.
معلومات الامتثال
Industrial-grade -40C to +85C; not AEC-Q100 qualified - for automotive applications consider Tiva TM4C123x AEC-Q100 variants or the TMS570 Hercules safety MCU family.
