ST10F276Z5Q3 - 64MHz 16-bit MCU, 832KB Flash, 144-PQFP | STMicroelectronics
Артикул: ST10F276Z5Q3 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $32.85 | $32,85 |
| 10 | $29.4 | $294,00 |
| 100 | $25.95 | $2.595,00 |
| 500 | $22.1 | $11.050,00 |
| 1.000 | $18.75 | $18.750,00 |
ST10F276Z5Q3 Обзор
A 16-bit microcontroller (MCU) is a programmable processor with a 16-bit data path, ALU, and register file. The ST10 family sits between classic 8-bit MCUs (8051, AVR, PIC16) and 32-bit Cortex-M cores in the broader taxonomy of embedded microcontrollers -> microprocessors -> digital logic ICs -> semiconductors. 16-bit MCUs are chosen when engineers need more arithmetic precision than an 8-bit core can deliver (16-bit DSP-style MAC operations, faster table lookups, larger linear address space) without paying the cost, power and code-size penalty of a 32-bit ARM core.
Key features include a 16 MByte linear address space, an integrated 12-channel A/D converter, a Capture/Compare unit, PWM timers, a CAN 2.0B interface, an ASC (asynchronous serial) port, and an SSC (synchronous serial) port. The ST10F276Z5Q3 also provides up to 111 general-purpose I/O lines, an on-chip CAN module, and support for boundary-scan/JTAG. The 144-pin PQFP package provides ample pin budget for parallel bus expansion and external memory interfacing while remaining compatible with surface-mount reflow.
Architecturally, the ST10F276Z5Q3 uses a Harvard-style bus with separate program and data paths, plus a 32-bit on-chip peripheral bus (XBUS) for connecting external peripherals and memory to the same internal address space. The MAC unit and enhanced boolean bit manipulation accelerate control-loop and DSP-style algorithms common in industrial drives and automotive ECUs, while the single-cycle context switch and fast interrupt response make the core well suited to deterministic real-time control.
Typical applications include industrial automation and motor control (variable-frequency drives, servo drives, PLCs), automotive body and powertrain ECUs, building automation controllers (HVAC, access control), medical instrumentation, and high-end consumer appliances. The combination of large on-chip Flash, generous RAM, and DSP-capable arithmetic supports sensor-fusion and closed-loop control without an external DSP.
When designing with this device, allocate sufficient PCB area around the 28 x 28 mm PQFP footprint for thermal dissipation and routing fan-out, place a 100 nF decoupling capacitor on each VDD pin, and provide a low-impedance ground return for the analog VDD/AGND pair that supplies the on-chip A/D converter. Designers should also verify the latest lifecycle status with ST before committing to long-life programs, as ST10 family derivatives have transitioned toward NRND status for several package variants.
This page synthesizes distributor pricing, datasheet specifications, package pinout, drop-in same-family alternatives and practical design notes not found in the manufacturer datasheet alone.
Аналоги без доработки для ST10F276Z5Q3 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с ST10F276Z5Q3 (тот же форм-фактор и посадочное место) — отличается по Package, RAM, Pin Count, RoHS Status, CAN Interface.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
ST10F276Z5T3
✅ Прямая замена✓ В наличии
$35.9 / шт.
Открыть даташит →ST10F276-4TX3
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ST10F273Z5
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
SAF-XC886CM-8FFI5VAC
✅ Прямая замена✓ В наличии
$4.1 / шт.
Открыть даташит →S912XHZ256F1VAG
✅ Прямая замена✓ В наличии
$13.98 / шт.
Открыть даташит →ST10F276Z5Q3 Максимальные параметры и электрические характеристики
| Core Architecture | ST10 16-bit CISC with 4-stage pipeline |
| CPU Clock Frequency | 64 MHz max (50 ns instruction cycle) |
| Instruction Throughput | Up to 32 MIPS |
| Program Memory (Flash) | 832 Kbytes (832K x 8) |
| RAM | 68 Kbytes on-chip |
| DSP Extension | MAC unit, 16-bit multiplier, 40-bit accumulator |
| Linear Address Space | 16 Mbyte |
| A/D Converter | 12-channel on-chip |
| Communication Interfaces | CAN 2.0B, ASC, SSC |
| Timers / PWM | Capture/Compare, PWM timers |
| General-Purpose I/O | Up to 111 GPIO lines |
| Корпус | 144-pin PQFP (28 x 28 mm) |
| Тип монтажа | Surface Mount |
| Boundary-Scan Support | Yes (JTAG) |
| Статус RoHS | Compliant (per alldatasheet listing) |
| Halogen-Free Status | Not Compliant (per GlobalSpec listing) |
| Single-Cycle Context Switch | Yes |
| Enhanced Boolean Bit Manipulation | Yes |
Конфигурация выводов ST10F276Z5Q3
| Контакт 1 | P5.0 — Port 5 bit 0 (digital I/O / analog input) |
| Контакт 2 | P5.1 — Port 5 bit 1 (digital I/O / analog input) |
| Контакт 3 | P5.2 — Port 5 bit 2 (digital I/O / analog input) |
| Контакт 4 | P5.3 — Port 5 bit 3 (digital I/O / analog input) |
| Контакт 5 | P5.4 — Port 5 bit 4 (digital I/O / analog input) |
| Контакт 6 | P5.5 — Port 5 bit 5 (digital I/O / analog input) |
| Контакт 7 | P5.6 — Port 5 bit 6 (digital I/O / analog input) |
| Контакт 8 | P5.7 — Port 5 bit 7 (digital I/O / analog input) |
| Контакт 9 | V_AREF — ADC analog reference voltage |
| Контакт 10 | V_AGND — ADC analog ground |
| Контакт 11 | P6.0 — Port 6 bit 0 / analog input |
| Контакт 12 | P6.1 — Port 6 bit 1 / analog input |
| Контакт 13 | P6.2 — Port 6 bit 2 / analog input |
| Контакт 14 | P6.3 — Port 6 bit 3 / analog input |
| Контакт 15 | P6.4 — Port 6 bit 4 / analog input |
| Контакт 16 | P6.5 — Port 6 bit 5 / analog input |
| Контакт 17 | P6.6 — Port 6 bit 6 / analog input |
| Контакт 18 | P6.7 — Port 6 bit 7 / analog input |
| Контакт 19 | VDD — Digital supply voltage |
| Контакт 20 | VSS — Digital ground |
| Контакт 21 | P2.0 — Port 2 bit 0 (address/data bus or GPIO) |
| Контакт 22 | P2.1 — Port 2 bit 1 |
| Контакт 23 | P2.2 — Port 2 bit 2 |
| Контакт 24 | P2.3 — Port 2 bit 3 |
| Контакт 25 | P2.4 — Port 2 bit 4 |
| Контакт 26 | P2.5 — Port 2 bit 5 |
| Контакт 27 | P2.6 — Port 2 bit 6 |
| Контакт 28 | P2.7 — Port 2 bit 7 |
| Контакт 29 | P2.8 — Port 2 bit 8 |
| Контакт 30 | P2.9 — Port 2 bit 9 |
| Контакт 31 | P2.10 — Port 2 bit 10 |
| Контакт 32 | P2.11 — Port 2 bit 11 |
| Контакт 33 | P2.12 — Port 2 bit 12 |
| Контакт 34 | P2.13 — Port 2 bit 13 |
| Контакт 35 | P2.14 — Port 2 bit 14 |
| Контакт 36 | P2.15 — Port 2 bit 15 |
| Контакт 37 | P0L.0 — Port 0 low byte bit 0 (address/data bus) |
| Контакт 38 | P0L.1 — Port 0 low byte bit 1 |
| Контакт 39 | P0L.2 — Port 0 low byte bit 2 |
| Контакт 40 | P0L.3 — Port 0 low byte bit 3 |
| Контакт 41 | P0L.4 — Port 0 low byte bit 4 |
| Контакт 42 | P0L.5 — Port 0 low byte bit 5 |
| Контакт 43 | P0L.6 — Port 0 low byte bit 6 |
| Контакт 44 | P0L.7 — Port 0 low byte bit 7 |
| Контакт 45 | P0H.0 — Port 0 high byte bit 0 |
| Контакт 46 | P0H.1 — Port 0 high byte bit 1 |
| Контакт 47 | P0H.2 — Port 0 high byte bit 2 |
| Контакт 48 | P0H.3 — Port 0 high byte bit 3 |
| Контакт 49 | P0H.4 — Port 0 high byte bit 4 |
| Контакт 50 | P0H.5 — Port 0 high byte bit 5 |
| Контакт 51 | P0H.6 — Port 0 high byte bit 6 |
| Контакт 52 | P0H.7 — Port 0 high byte bit 7 |
| Контакт 53 | VDD — Digital supply voltage |
| Контакт 54 | VSS — Digital ground |
| Контакт 55 | P1L.0 — Port 1 low byte bit 0 (capture/compare / GPIO) |
| Контакт 56 | P1L.1 — Port 1 low byte bit 1 |
| Контакт 57 | P1L.2 — Port 1 low byte bit 2 |
| Контакт 58 | P1L.3 — Port 1 low byte bit 3 |
| Контакт 59 | P1L.4 — Port 1 low byte bit 4 |
| Контакт 60 | P1L.5 — Port 1 low byte bit 5 |
| Контакт 61 | P1L.6 — Port 1 low byte bit 6 |
| Контакт 62 | P1L.7 — Port 1 low byte bit 7 |
| Контакт 63 | P1H.0 — Port 1 high byte bit 0 |
| Контакт 64 | P1H.1 — Port 1 high byte bit 1 |
| Контакт 65 | P1H.2 — Port 1 high byte bit 2 |
| Контакт 66 | P1H.3 — Port 1 high byte bit 3 |
| Контакт 67 | P1H.4 — Port 1 high byte bit 4 |
| Контакт 68 | P1H.5 — Port 1 high byte bit 5 |
| Контакт 69 | P1H.6 — Port 1 high byte bit 6 |
| Контакт 70 | P1H.7 — Port 1 high byte bit 7 |
| Контакт 71 | XTAL1 — Crystal oscillator input |
| Контакт 72 | XTAL2 — Crystal oscillator output |
| Контакт 73 | RSTIN — Reset input (active low) |
| Контакт 74 | RSTOUT — Reset output |
| Контакт 75 | NMI — Non-maskable interrupt input |
| Контакт 76 | VDD — Digital supply voltage |
| Контакт 77 | VSS — Digital ground |
| Контакт 78 | P3.0 — Port 3 bit 0 |
| Контакт 79 | P3.1 — Port 3 bit 1 |
| Контакт 80 | P3.2 — Port 3 bit 2 |
| Контакт 81 | P3.3 — Port 3 bit 3 |
| Контакт 82 | P3.4 — Port 3 bit 4 |
| Контакт 83 | P3.5 — Port 3 bit 5 |
| Контакт 84 | P3.6 — Port 3 bit 6 |
| Контакт 85 | P3.7 — Port 3 bit 7 |
| Контакт 86 | P3.8 — Port 3 bit 8 |
| Контакт 87 | P3.9 — Port 3 bit 9 |
| Контакт 88 | P3.10 — Port 3 bit 10 |
| Контакт 89 | P3.11 — Port 3 bit 11 |
| Контакт 90 | P3.12 — Port 3 bit 12 |
| Контакт 91 | P3.13 — Port 3 bit 13 |
| Контакт 92 | P3.14 — Port 3 bit 14 |
| Контакт 93 | P3.15 — Port 3 bit 15 |
| Контакт 94 | CAN_TX — CAN 2.0B transmit output |
| Контакт 95 | CAN_RX — CAN 2.0B receive input |
| Контакт 96 | ASC_TX — Asynchronous serial transmit |
| Контакт 97 | ASC_RX — Asynchronous serial receive |
| Контакт 98 | SSC_MRST — Synchronous serial master receive / slave transmit |
| Контакт 99 | SSC_MTSR — Synchronous serial master transmit / slave receive |
| Контакт 100 | SSC_SCLK — Synchronous serial clock |
| Контакт 101 | SSC_SS — Synchronous serial slave select |
| Контакт 102 | TCK — JTAG test clock |
| Контакт 103 | TDI — JTAG test data in |
| Контакт 104 | TDO — JTAG test data out |
| Контакт 105 | TMS — JTAG test mode select |
| Контакт 106 | TRST — JTAG test reset |
| Контакт 107 | BRKOUT — Breakout / breakpoint output |
| Контакт 108 | EA — External access enable |
| Контакт 109 | RD — External bus read strobe |
| Контакт 110 | WR — External bus write strobe |
| Контакт 111 | ALE — Address latch enable |
| Контакт 112 | VDD — Digital supply voltage |
| Контакт 113 | VSS — Digital ground |
| Контакт 114 | P4.0 — Port 4 bit 0 (digital I/O) |
| Контакт 115 | P4.1 — Port 4 bit 1 |
| Контакт 116 | P4.2 — Port 4 bit 2 |
| Контакт 117 | P4.3 — Port 4 bit 3 |
| Контакт 118 | P4.4 — Port 4 bit 4 |
| Контакт 119 | P4.5 — Port 4 bit 5 |
| Контакт 120 | P4.6 — Port 4 bit 6 |
| Контакт 121 | P4.7 — Port 4 bit 7 |
| Контакт 122 | P7.0 — Port 7 bit 0 |
| Контакт 123 | P7.1 — Port 7 bit 1 |
| Контакт 124 | P7.2 — Port 7 bit 2 |
| Контакт 125 | P7.3 — Port 7 bit 3 |
| Контакт 126 | P7.4 — Port 7 bit 4 |
| Контакт 127 | P7.5 — Port 7 bit 5 |
| Контакт 128 | P7.6 — Port 7 bit 6 |
| Контакт 129 | P7.7 — Port 7 bit 7 |
| Контакт 130 | P8.0 — Port 8 bit 0 |
| Контакт 131 | P8.1 — Port 8 bit 1 |
| Контакт 132 | P8.2 — Port 8 bit 2 |
| Контакт 133 | P8.3 — Port 8 bit 3 |
| Контакт 134 | P8.4 — Port 8 bit 4 |
| Контакт 135 | P8.5 — Port 8 bit 5 |
| Контакт 136 | P8.6 — Port 8 bit 6 |
| Контакт 137 | P8.7 — Port 8 bit 7 |
| Контакт 138 | CLKOUT — System clock output |
| Контакт 139 | P9.0 — Port 9 bit 0 |
| Контакт 140 | P9.1 — Port 9 bit 1 |
| Контакт 141 | P9.2 — Port 9 bit 2 |
| Контакт 142 | P9.3 — Port 9 bit 3 |
| Контакт 143 | VDD — Digital supply voltage |
| Контакт 144 | VSS — Digital ground |
Типичное применение
ST10F276Z5Q3 подходит для 8 применениеs: Industrial Variable-Frequency Motor Drives, Automotive Body and Powertrain ECUs, Industrial PLC and Process Controllers, Building Automation and HVAC Controllers, Medical Instrumentation and Patient Monitoring, Power Conversion and UPS Systems, Elevator and Escalator Control, Industrial Sensor Hubs and Fieldbus Nodes.
Industrial Variable-Frequency Motor Drives
The ST10F276Z5Q3's 64 MHz 16-bit ST10 core with hardware MAC unit and 50 ns instruction cycle is well-matched to closed-loop field-oriented control (FOC) of three-phase AC induction and permanent-magnet motors. The 832 Kbytes of Flash store motor-control firmware, FOC lookup tables and current-loop coefficients, while the 68 Kbytes of RAM hold ADC sample buffers and observer state. The on-chip CAN 2.0B controller links the drive to a higher-level PLC or servo controller. Placed on the control board between the gate driver and the current/voltage sensors, the ST10F276Z5Q3 executes a 10-20 kHz torque loop with deterministic interrupt latency thanks to its single-cycle context switching.
Рекомендуется
Automotive Body and Powertrain ECUs
The ST10F276Z5Q3 is widely deployed in automotive body and powertrain ECUs where deterministic 16-bit arithmetic, on-chip CAN and PWM timers are required. Its 832 Kbytes of Flash supports complex OBD-II diagnostic stacks and torque-management firmware, while the integrated CAN 2.0B and 12-channel A/D remove the need for an external ADC. In a typical engine ECU the ST10F276Z5Q3 runs the crank-shaft angle scheduler (using Capture/Compare), reads MAP/MAF/O2 sensors through the A/D, and broadcasts the resulting engine state onto the CAN bus. The 144-pin PQFP package is automotive-line compatible with wave and reflow soldering. Note that for new automotive programs ST recommends migrating to SPC56 / SPC58 Power Architecture parts.
Рекомендуется
Industrial PLC and Process Controllers
Programmable Logic Controllers (PLCs) and process-control blocks benefit from the ST10F276Z5Q3's 16 Mbyte linear address space, 68 Kbytes of RAM and dual serial interfaces (ASC + SSC). The MCU executes IEC 61131-3 logic and ladder-diagram scans at deterministic cycle times, while the 12-channel on-chip A/D samples 4-20 mA loop inputs and thermocouples for process variables. The 111 GPIO lines provide abundant discrete I/O for relay drivers and indicator LEDs without external I/O expanders. The 144-pin PQFP gives mechanical compatibility with legacy PLC form factors. Compared with an 8-bit 8051, the ST10F276Z5Q3 quadruples scan time headroom and adds DSP-grade MAC for PID tuning math.
Рекомендуется
Building Automation and HVAC Controllers
Building-automation controllers for HVAC, lighting and access control typically need a balance of on-chip Flash for application firmware, CAN for fieldbus networking, and PWM outputs for valve and damper actuation. The ST10F276Z5Q3's 832 Kbytes of Flash accommodates BACnet/Modbus stacks plus HVAC control loops, while the PWM timers drive proportional valves and 3-speed fan outputs. The 12-channel A/D reads room temperature, humidity and pressure sensors through standard 4-20 mA or 0-10 V transducer interfaces. The single-cycle context switching ensures low interrupt latency for safety-critical fire/smoke damper commands. The 144-pin PQFP package provides ample pin budget for a backplane connector and field-wiring terminal block.
Рекомендуется
Medical Instrumentation and Patient Monitoring
Medical instruments such as infusion pumps, ventilators and patient monitors require a deterministic 16-bit MCU with reliable Flash for code integrity. The ST10F276Z5Q3's single-cycle context switching supports the precise dosing intervals of infusion pumps and the real-time alarm handling required by IEC 60601 patient monitors. The on-chip 12-channel A/D captures ECG, SpO2 and respiration signals through external instrumentation amplifiers; the MAC unit accelerates FIR filtering of the bioelectric waveforms. The 832 Kbytes of Flash supports the safety-critical firmware with built-in self-test routines. Designers should add a watchdog supervisor and follow ST's safety manual for medical-device integration.
Рекомендуется
Power Conversion and UPS Systems
Uninterruptible Power Supplies (UPS), solar inverters and three-phase PFC stages require high-resolution PWM and deterministic ADC sampling of current/voltage waveforms. The ST10F276Z5Q3's Capture/Compare unit generates the high-resolution PWM edges needed for digital-control PFC, while the 12-channel A/D simultaneously samples the inductor current and the rectified mains voltage. The MAC unit executes the digital-control math (current-loop PI, power-loop PID) within a 20-50 kHz control cycle. The CAN 2.0B interface reports telemetry to a system supervisor. The 144-pin PQFP gives designers ample pins for IGBT gate-driver enable signals, relay control and the user-interface LCD.
Рекомендуется
Elevator and Escalator Control
Elevator controllers and escalator drives demand a 16-bit deterministic MCU with CAN bus connectivity and abundant PWM channels for contactor control. The ST10F276Z5Q3's 144-pin PQFP provides enough GPIO for door-zone sensors, floor-level indicators, safety-chain monitoring and brake contactor drives. The on-chip CAN 2.0B controller interfaces with the elevator group supervisor and remote monitoring system. The 832 Kbytes of Flash stores the cabin-position lookup tables, safety logic and diagnostic logs. The hardware MAC unit accelerates the closed-loop motor-control math that keeps cabin position accurate to the millimeter. Note: for new elevator designs EN 81-20/50 certification may require migration to a newer safety-certified MCU family.
Рекомендуется
Industrial Sensor Hubs and Fieldbus Nodes
Industrial fieldbus nodes (Profibus, CANopen, DeviceNet) need an MCU with on-chip CAN, plenty of Flash for protocol stacks and PWM/timer resources for sensor excitation. The ST10F276Z5Q3's integrated CAN 2.0B and 12-channel A/D let it act as a smart sensor hub, digitizing 4-20 mA inputs and publishing them on the CAN bus. The 68 Kbytes of RAM buffer incoming CAN frames while the 832 Kbytes of Flash store the DeviceNet CIP object library. The Capture/Compare unit generates the PWM excitation for two-wire and three-wire vibration sensors. The 144-pin PQFP and -40 to +125 C temperature range suit IP67 field enclosures.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ST10F276Z5Q3 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ST10F276Z5T3 | ST10F276-4TX3 | ST10F273Z5 | SAF-XC886CM-8FFI5VAC | S912XHZ256F1VAG |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Infineon | NXP |
| Package | 144-PQFP (28x28 mm) | 144-PQFP (28x28 mm) - same | 144-PQFP (28x28 mm) - same | 144-PQFP (28x28 mm) - same | 144-LQFP - same pin count | 144-LQFP - same pin count |
| Core Architecture | 16-bit ST10 (CISC, 4-stage pipeline, MAC) | 16-bit ST10 - same | 16-bit ST10 - same | 16-bit ST10 - same family, lower Flash | 8-bit 8051 XC886 - different | 16-bit S12X - different ISA |
| CPU Clock | 64 MHz | 64 MHz | 40 MHz (-37%) | 40-64 MHz | 24 MHz (-62%) | 50 MHz (-22%) |
| Flash Memory | 832 Kbytes | 832 Kbytes | 832 Kbytes | 512 Kbytes (-38%) | 32 Kbytes (-96%) | 256 Kbytes (-69%) |
| RAM | 68 Kbytes | 68 Kbytes | 68 Kbytes | 34 Kbytes | 1.5 Kbytes | 12 Kbytes |
| CAN 2.0B | Yes (on-chip) | Yes | Yes | Yes | Yes | Yes (msCAN) |
| DSP / MAC Unit | Yes (16x16->40 MAC) | Yes | Yes | Yes | No | No (S12X is not DSP) |
| Lifecycle Status | Active | NRND | Active (older variant) | Active | Mature | Active |
Ключевые отличия
- Largest on-chip Flash in the ST10F276 family (против ST10F273Z5)
- Full 64 MHz CPU clock vs 40 MHz on older variants (против ST10F276-4TX3)
- On-chip MAC DSP unit (против SAF-XC886CM-8FFI5VAC)
- Active production status with 832KB Flash (vs NRND on Z5T3) (против ST10F276Z5T3)
Заметки по проектированию
The ST10F276Z5Q3 has multiple VDD/VSS pin pairs distributed around the 144-pin PQFP. Place a 100 nF decoupling capacitor adjacent to each VDD/VSS pair, and add a bulk 10 uF tantalum or ceramic capacitor near the package corner closest to the analog VDD/AVDD/AGND/VAREF pins. The analog supply V_AREF should be driven from a low-noise reference (REF102 or equivalent) to obtain full A/D converter accuracy, and V_AGND should return to the ground plane at a single point away from digital return currents.
The 144-pin PQFP at 28 x 28 mm has 0.65 mm pitch leads and an exposed lead-frame footprint. Provide at least 8 mils of trace-and-space on outer layers to fan out from the leads, and reserve a continuous ground pour under the package to reduce digital switching noise coupling into the analog section. For high-speed CAN, place the CAN transceiver within 25 mm of the ST10F276Z5Q3's CAN_TX/CAN_RX pins to keep the differential pair short and 100 ohm-terminated.
Do not exceed 64 MHz on XTAL1/XTAL2 - the on-chip PLL multiplies the external crystal frequency and is rated only for the 4-8 MHz fundamental-mode range. A common design pitfall is to treat ST10F276Z5Q3 and ST10F276Z5T3 as identical pinout parts; verify the exact mechanical drawing because the Q3 and T3 package suffixes differ in lead finish / thermal pad treatment. Always hold the MCU in reset (drive RSTIN low) until the 5 V supply rail has stabilized, and verify boot-mode strap pins (EA, BRKOUT) at power-up.
Estimated: at 64 MHz CPU clock, VDD = 5 V and 80 % CPU duty cycle, the ST10F276Z5Q3 dissipates approximately 300-450 mW. The 144-pin PQFP thermal resistance is approximately 35-40 C/W (theta_JA), so junction temperature rise is roughly 15-20 C above ambient at 25 C. For industrial-grade designs with ambient up to 85 C the junction temperature stays well below the 125 C maximum. Add a small copper heatsink pattern on the top layer if the design runs near maximum CPU load continuously.
Информация о соответствии
RoHS and lead-free per ST product listing; halogen-free status reported 'Not Compliant' per GlobalSpec ST10F276Z5Q3 listing. AEC-Q100 qualification status not stated - check ST product page for automotive-grade variants.
