TM4C1237H6PZI - 80MHz ARM Cortex-M4F MCU 256KB Flash | TI
MPN: TM4C1237H6PZI ✓ Hoạt độngTM4C1237H6PZI Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho TM4C1237H6PZI — 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 TM4C1237H6PZI (cùng hình factor và footprint) — khác nhau ở ADC, Package, Mounting Type, Core Architecture, FPU.
TM4C1237H6PZIR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TM4C1237H6PMI
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TM4C1233H6PZI
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TM4C1231H6PZI
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TM4C1230H6PZI
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TM4C1237H6PZI Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4F (32-bit, with FPU) |
| Tần số xung maksimum | 80 MHz |
| Program Memory (Flash) | 256 KB |
| SRAM | 32 KB |
| Hộp | 100-pin LQFP (PZ), 14x14 mm |
| Nhiệt độ hoạt động | -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 |
| Trạng thái RoHS | Compliant |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân TM4C1237H6PZI
| Chân 1 | VDD — I/O supply voltage (3.3V) |
| Chân 2 | PA0/U0RX — GPIO PA0 / UART0 receive |
| Chân 3 | PA1/U0TX — GPIO PA1 / UART0 transmit |
| Chân 4 | PA2/SSI0CLK — GPIO PA2 / SSI0 clock |
| Chân 5 | PA3/SSI0FSS — GPIO PA3 / SSI0 frame |
| Chân 6 | PA4/SSI0RX — GPIO PA4 / SSI0 receive |
| Chân 7 | PA5/SSI0TX — GPIO PA5 / SSI0 transmit |
| Chân 8 | VDD — I/O supply voltage |
| Chân 9 | GND — Ground |
| Chân 10 | PA6/I2C1SCL — GPIO PA6 / I2C1 clock |
| Chân 11 | PA7/I2C1SDA — GPIO PA7 / I2C1 data |
| Chân 12 | PB0/U1RX — GPIO PB0 / UART1 receive |
| Chân 13 | PB1/U1TX — GPIO PB1 / UART1 transmit |
| Chân 14 | PB2/I2C0SCL — GPIO PB2 / I2C0 clock |
| Chân 15 | PB3/I2C0SDA — GPIO PB3 / I2C0 data |
| Chân 16 | PB4/C0- — GPIO PB4 / ADC0 channel 0 negative |
| Chân 17 | PB5/C0+ — GPIO PB5 / ADC0 channel 0 positive |
| Chân 18 | PB6/C1- — GPIO PB6 / ADC0 channel 1 negative |
| Chân 19 | PB7/C1+ — GPIO PB7 / ADC0 channel 1 positive |
| Chân 20 | VDD — I/O supply voltage |
| Chân 21 | GND — Ground |
| Chân 22 | PC0/TCK/SWCLK — GPIO PC0 / JTAG TCK / SWD clock |
| Chân 23 | PC1/TMS/SWDIO — GPIO PC1 / JTAG TMS / SWD I/O |
| Chân 24 | PC2/TDI — GPIO PC2 / JTAG TDI |
| Chân 25 | PC3/TDO/SWO — GPIO PC3 / JTAG TDO / SWO trace |
| Chân 26 | PC4/C2- — GPIO PC4 / ADC0 channel 2 negative |
| Chân 27 | PC5/C2+ — GPIO PC5 / ADC0 channel 2 positive |
| Chân 28 | PC6/C3- — GPIO PC6 / ADC0 channel 3 negative |
| Chân 29 | PC7/C3+ — GPIO PC7 / ADC0 channel 3 positive |
| Chân 30 | VDD — I/O supply voltage |
| Chân 31 | GND — Ground |
| Chân 32 | PD0/CAN0RX — GPIO PD0 / CAN0 receive |
| Chân 33 | PD1/CAN0TX — GPIO PD1 / CAN0 transmit |
| Chân 34 | PD2/U2RX — GPIO PD2 / UART2 receive |
| Chân 35 | PD3/U2TX — GPIO PD3 / UART2 transmit |
| Chân 36 | PD4/USB0DM — GPIO PD4 / USB0 D-minus |
| Chân 37 | PD5/USB0DP — GPIO PD5 / USB0 D-plus |
| Chân 38 | PD6/C2O — GPIO PD6 / Analog comparator 2 output |
| Chân 39 | PD7/C1O — GPIO PD7 / Analog comparator 1 output |
| Chân 40 | VDD — I/O supply voltage |
| Chân 41 | GND — Ground |
| Chân 42 | PE0/U3RX — GPIO PE0 / UART3 receive |
| Chân 43 | PE1/U3TX — GPIO PE1 / UART3 transmit |
| Chân 44 | PE2/CAN1RX — GPIO PE2 / CAN1 receive |
| Chân 45 | PE3/CAN1TX — GPIO PE3 / CAN1 transmit |
| Chân 46 | PE4/U4RX — GPIO PE4 / UART4 receive |
| Chân 47 | PE5/U4TX — GPIO PE5 / UART4 transmit |
| Chân 48 | PE6/U5RX — GPIO PE6 / UART5 receive |
| Chân 49 | PE7/U5TX — GPIO PE7 / UART5 transmit |
| Chân 50 | VDD — I/O supply voltage |
| Chân 51 | GND — Ground |
| Chân 52 | PF0/PWM0 — GPIO PF0 / PWM0 output |
| Chân 53 | PF1/PWM1 — GPIO PF1 / PWM1 output |
| Chân 54 | PF2/PWM2 — GPIO PF2 / PWM2 output |
| Chân 55 | PF3/PWM3 — GPIO PF3 / PWM3 output |
| Chân 56 | PF4/C0O — GPIO PF4 / Analog comparator 0 output |
| Chân 57 | VDD — I/O supply voltage |
| Chân 58 | GND — Ground |
| Chân 59 | PG0/U2RX — GPIO PG0 / UART2 receive |
| Chân 60 | PG1/U2TX — GPIO PG1 / UART2 transmit |
| Chân 61 | PG2/I2C1SCL — GPIO PG2 / I2C1 clock |
| Chân 62 | PG3/I2C1SDA — GPIO PG3 / I2C1 data |
| Chân 63 | PG4/U1RX — GPIO PG4 / UART1 receive |
| Chân 64 | PG5/U1TX — GPIO PG5 / UART1 transmit |
| Chân 65 | PG6/U0RX — GPIO PG6 / UART0 receive |
| Chân 66 | PG7/U0TX — GPIO PG7 / UART0 transmit |
| Chân 67 | PH0/U7RX — GPIO PH0 / UART7 receive |
| Chân 68 | PH1/U7TX — GPIO PH1 / UART7 transmit |
| Chân 69 | PH2/SSI3CLK — GPIO PH2 / SSI3 clock |
| Chân 70 | PH3/SSI3FSS — GPIO PH3 / SSI3 frame |
| Chân 71 | PH4/SSI3RX — GPIO PH4 / SSI3 receive |
| Chân 72 | PH5/SSI3TX — GPIO PH5 / SSI3 transmit |
| Chân 73 | VDD — I/O supply voltage |
| Chân 74 | GND — Ground |
| Chân 75 | PJ0/U6RX — GPIO PJ0 / UART6 receive |
| Chân 76 | PJ1/U6TX — GPIO PJ1 / UART6 transmit |
| Chân 77 | PJ2/U5RX — GPIO PJ2 / UART5 receive |
| Chân 78 | PJ3/U5TX — GPIO PJ3 / UART5 transmit |
| Chân 79 | PJ4/U4RX — GPIO PJ4 / UART4 receive |
| Chân 80 | PJ5/U4TX — GPIO PJ5 / UART4 transmit |
| Chân 81 | PJ6/U3RX — GPIO PJ6 / UART3 receive |
| Chân 82 | PJ7/U3TX — GPIO PJ7 / UART3 transmit |
| Chân 83 | PK0/U4RX — GPIO PK0 / UART4 receive |
| Chân 84 | PK1/U4TX — GPIO PK1 / UART4 transmit |
| Chân 85 | PK2/U3RX — GPIO PK2 / UART3 receive |
| Chân 86 | PK3/U3TX — GPIO PK3 / UART3 transmit |
| Chân 87 | PL0/I2C2SCL — GPIO PL0 / I2C2 clock |
| Chân 88 | PL1/I2C2SDA — GPIO PL1 / I2C2 data |
| Chân 89 | PL2/C0- — GPIO PL2 / ADC0 channel 0 negative |
| Chân 90 | PL3/C0+ — GPIO PL3 / ADC0 channel 0 positive |
| Chân 91 | PL4/C1- — GPIO PL4 / ADC0 channel 1 negative |
| Chân 92 | PL5/C1+ — GPIO PL5 / ADC0 channel 1 positive |
| Chân 93 | VDDC — Core supply (LDO output, requires cap) |
| Chân 94 | VDD — I/O supply voltage |
| Chân 95 | VDDA — Analog supply voltage |
| Chân 96 | GND — Ground |
| Chân 97 | OSC0 — Main oscillator crystal input / single-ended clock input |
| Chân 98 | OSC1 — Main oscillator crystal output |
| Chân 99 | WAKE — Hibernation wake input |
| Chân 100 | RST — Reset input (active low) |
Ứng dụng tiêu biểu
TM4C1237H6PZI phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TM4C1237H6PZI — 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 | 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) |
Bảo phân biệt quan trọng
- Highest peripheral density in TM4C123x family with USB + dual CAN (vsTM4C1233H6PZI)
- Full Tiva peripheral set with dual CAN plus USB plus dual ADC (vsTM4C1231H6PZI)
- Industrial-grade temp range plus RTC and Hibernation module (vsTM4C1230H6PZI)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
