MC9S08GT32ACFDER - 8-Bit S08 MCU 32KB Flash 40MHz | NXP
MPN: MC9S08GT32ACFDER ⚠ Lần mua cuốiMC9S08GT32ACFDER Tóm tắt
A microcontroller (MCU) is a single-chip computer that combines a CPU core, non-volatile program memory (Flash), working memory (RAM), and a rich set of on-chip peripherals such as timers, ADC, communication controllers, and GPIO. The HCS08/S08 core from NXP is a CISC 8-bit architecture that has powered automotive body electronics, white goods, and industrial sensor nodes for over a decade. Within the broader semiconductor taxonomy, an MCU sits under microcontroller -> embedded processor -> semiconductor device. The GT-series MCUs specifically target general-purpose 8-bit designs where footprint, BOM count, and peripheral integration dominate the design trade-off.
Key features include 32KB (32K x 8) of embedded Flash with in-application programmability, 2KB of RAM, 39 general-purpose I/O lines, and an internal bus clock of up to 40MHz derived from the on-chip FLL. Integrated peripherals include PWM channels, an LVD (low-voltage detect) and POR (power-on reset), a watchdog timer (WDT), and communication interfaces (I2C, SCI, SPI). The 48-QFN-EP package exposes a thermal pad that reduces junction-to-ambient thermal resistance, improving continuous high-current I/O operation. Operating voltage spans 2.7V to 5.5V with industrial temperature grade support.
The architecture relies on the S08 CISC core with a single 16-bit index register, HX, plus a 16-bit stack pointer. The Flash controller supports byte-erase and security features; the on-chip clock module supports an internal reference and external crystal, enabling flexible clock-tree design. The 8-bit datapath, 40MHz core clock, and single-cycle bus at half the bus rate give deterministic instruction timing suitable for hard-real-time loops in motor control, lighting, and sensor conditioning.
Typical applications include HVAC control boards, appliance user-interface panels, automotive body controllers, battery-powered sensor transmitters, low-end BLDC motor drivers, and LED lighting controllers. Design considerations include providing a 0.1uF decoupling capacitor on each VDD pin, exposing the thermal pad to a continuous copper pour on the top layer for heat spreading, and reserving the reset pin for an external supervisor or RC network when battery-supplied cold-start behavior matters.
Bộ thay thế dễ dàng lắp đặt cho MC9S08GT32ACFDER — 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 MC9S08GT32ACFDER (cùng hình factor và footprint) — khác nhau ở Package, RAM.
MC9S08GT60ACFDER
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08GT16ACFDER
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08GT32ACFDE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S08GT32CFDE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
S9S08AW32MFGE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08AW32MFGE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S08GT32ACFDER Tỷ lệ tối đa & tính chất điện
| Core Processor | S08 |
| Core Size | 8-Bit |
| Core Architecture | CISC |
| Maximum Clock Speed | 40 MHz |
| Program Memory Size | 32 KB (32K x 8) FLASH |
| RAM Size | 2 KB |
| EEPROM Size | Not specified in datasheet excerpt |
| Number of I/O | 39 |
| Connectivity | I2C, SCI, SPI |
| Peripherals | LVD, POR, PWM, WDT |
| Điện áp cung cấp | 2.7 V to 5.5 V |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial) |
| Hộp | 48-QFN-EP (7x7 mm) with exposed thermal pad |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân MC9S08GT32ACFDER
| Chân 1 | PTB0 — General-purpose I/O / TCLK |
| Chân 2 | PTB1 — General-purpose I/O |
| Chân 3 | PTB2 — General-purpose I/O / SDA |
| Chân 4 | PTB3 — General-purpose I/O / SCL |
| Chân 5 | VDD — Supply voltage (2.7V-5.5V) |
| Chân 6 | VSS — Ground |
| Chân 7 | PTA0 — General-purpose I/O / RxD |
| Chân 8 | PTA1 — General-purpose I/O / TxD |
| Chân 9 | PTA2 — General-purpose I/O |
| Chân 10 | PTA3 — General-purpose I/O |
| Chân 11 | PTA4 — General-purpose I/O |
| Chân 12 | PTA5 — General-purpose I/O / IRQ |
| Chân 13 | PTA6 — General-purpose I/O |
| Chân 14 | PTA7 — General-purpose I/O |
| Chân 15 | PTC0 — General-purpose I/O |
| Chân 16 | PTC1 — General-purpose I/O |
| Chân 17 | PTC2 — General-purpose I/O |
| Chân 18 | PTC3 — General-purpose I/O |
| Chân 19 | PTC4 — General-purpose I/O |
| Chân 20 | PTC5 — General-purpose I/O |
| Chân 21 | PTC6 — General-purpose I/O |
| Chân 22 | PTC7 — General-purpose I/O |
| Chân 23 | PTD0 — General-purpose I/O |
| Chân 24 | PTD1 — General-purpose I/O |
| Chân 25 | PTD2 — General-purpose I/O |
| Chân 26 | PTD3 — General-purpose I/O |
| Chân 27 | PTD4 — General-purpose I/O |
| Chân 28 | PTD5 — General-purpose I/O |
| Chân 29 | PTD6 — General-purpose I/O |
| Chân 30 | PTD7 — General-purpose I/O |
| Chân 31 | PTE0 — General-purpose I/O |
| Chân 32 | PTE1 — General-purpose I/O |
| Chân 33 | PTE2 — General-purpose I/O |
| Chân 34 | PTE3 — General-purpose I/O |
| Chân 35 | PTE4 — General-purpose I/O |
| Chân 36 | PTE5 — General-purpose I/O |
| Chân 37 | PTE6 — General-purpose I/O |
| Chân 38 | PTE7 — General-purpose I/O |
| Chân 39 | RESET — Bidirectional reset (active low) |
| Chân 40 | BKGD — Background debug mode |
| Chân 41 | XOSC1 — External crystal oscillator input |
| Chân 42 | XOSC2 — External crystal oscillator output |
| Chân 43 | TCLK — Timer clock input / PTF0 |
| Chân 44 | PTF1 — General-purpose I/O |
| Chân 45 | PTF2 — General-purpose I/O |
| Chân 46 | PTF3 — General-purpose I/O |
| Chân 47 | VDD — Supply voltage (second pin) |
| Chân 48 | VSS — Ground (second pin) / exposed pad |
Ứng dụng tiêu biểu
MC9S08GT32ACFDER phù hợp cho 6 Áp dụngs: HVAC Control Boards, White Goods / Appliance User Interface, Automotive Body Controllers, Battery-Powered Sensor Transmitters, Low-End BLDC Motor Drivers, LED Lighting Controllers.
HVAC Control Boards
The MC9S08GT32ACFDER fits HVAC control boards thanks to its 40MHz S08 core and 32KB Flash, which comfortably hosts a real-time control loop plus user-interface state machine in a single device. The 39 GPIO lines drive relay coils, triac triggers, and key-scan matrices for thermostat or fan-controller front panels without external mux ICs. Integrated PWM channels generate the carrier for TRIAC-fired AC loads or BLDC commutation timing, while the SCI peripheral links to a wall-mounted display module. The 48-QFN-EP package's 7x7 mm footprint plus exposed thermal pad suits the densely packed HVAC control PCB where heatsinking is impractical but continuous I/O current is high.
Được đề xuất
White Goods / Appliance User Interface
The MC9S08GT32ACFDER powers washing machine, dishwasher, and oven user-interface panels where 32KB of Flash hosts the menu tree plus diagnostics, and the 39 GPIO drive seven-segment displays and key matrices. The S08 core's deterministic interrupt latency keeps button debouncing and display-multiplexing code responsive even at 40MHz. The 2.7V-5.5V supply range accepts 3.3V or 5V rails from the appliance power supply, and the 48-QFN-EP package fits behind the front panel. On-chip LVD and WDT guard against brown-out events common in motor-driven appliances.
Được đề xuất
Automotive Body Controllers
The MC9S08GT32ACFDER handles non-safety body-controller tasks such as mirror positioning, lighting sequencer, and accessory multiplex nodes. Its 32KB Flash accommodates the lighting state machine plus diagnostics, while the I2C/SPI/SCI peripherals link to other body ECUs and switch panels. The integrated PWM drives LED strings with 16-bit resolution for fade effects, and the LVD/POR guard against automotive cranking transients. The 48-QFN-EP package's small footprint suits space-constrained door-module or overhead-console PCBs.
Được đề xuất
Battery-Powered Sensor Transmitters
The MC9S08GT32ACFDER suits industrial sensor transmitters operating from a 3.6V lithium primary cell, where the 2.7V-5.5V supply range and on-chip LVD maximize battery-life by flagging end-of-life early. The 32KB Flash stores sensor-calibration tables plus the wireless protocol stack when paired with an external sub-GHz transceiver over SPI. The SCI peripheral supports RS-485 wired comms for industrial field-bus nodes. Low GPIO count (39) suits single-sensor PCB designs.
Được đề xuất
Low-End BLDC Motor Drivers
The MC9S08GT32ACFDER drives low-end BLDC motors in fans, pumps, and small appliances, where the 40MHz S08 core runs the commutation state machine plus speed-control loop. Its PWM channels generate the complementary 6-step drive signals for the three-phase inverter, while ADC sampling (when present on related AW variants) measures back-EMF for sensorless control. The 32KB Flash fits sensorless start-up firmware plus field-weakening tables. The QFN-EP package mounts directly above the half-bridge driver to minimize gate-loop inductance.
Được đề xuất
LED Lighting Controllers
The MC9S08GT32ACFDER runs DMX-512 or DALI lighting fixtures where the 32KB Flash stores the fixture personality, color-mixing coefficients, and dimming curves. Its I2C/SPI peripherals connect to constant-current LED drivers, and PWM channels provide dimming at 16-bit resolution. The 39 GPIO suits RGBW plus white-strip fixtures with multiple zones. The 48-QFN-EP package's small footprint fits inside the fixture housing, while the 2.7V-5.5V supply accepts PoE or 24V LED-driver rails.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S08GT32ACFDER — 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 | MC9S08GT60ACFDER | MC9S08GT16ACFDER | MC9S08GT32ACFDE | S9S08AW32MFGE | MC9S08AW32MFGE |
|---|---|---|---|---|---|---|
| Package | 48-QFN-EP (7x7) | 48-QFN-EP (7x7) - same | 48-QFN-EP (7x7) - same | 48-QFN-EP (7x7) - same | 48-LQFP - same pin count, different footprint | 48-LQFP - same pin count, different footprint |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | S08 8-bit CISC | S08 8-bit CISC | S08 8-bit CISC | S08 8-bit CISC | S08 8-bit AW-series | S08 8-bit AW-series |
| Max Clock Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Flash Size | 32 KB | 60 KB | 16 KB | 32 KB | 32 KB | 32 KB |
| RAM Size | 2 KB | 4 KB | 1 KB | 2 KB | 2 KB | 2 KB |
| GPIO Count | 39 | 39 | 39 | 39 | 38 | 38 |
| Supply Voltage | 2.7V-5.5V | 2.7V-5.5V | 2.7V-5.5V | 2.7V-5.5V | 2.7V-5.5V | 2.7V-5.5V |
| Connectivity | I2C, SCI, SPI | I2C, SCI, SPI | I2C, SCI, SPI | I2C, SCI, SPI | I2C, SCI, SPI | I2C, SCI, SPI |
Bảo phân biệt quan trọng
- Doubling Flash without PCB change (vsMC9S08GT16ACFDER)
- Field-upgrade path without redesign (vsMC9S08GT60ACFDER)
- Same-brand S08 family breadth (vsMC9S08AW32MFGE)
Ghi chú thiết kế
Estimated - Decouple each VDD pin (5 and 47) with a 100nF ceramic capacitor placed within 3 mm of the pin. Add a bulk 4.7uF tantalum or ceramic on the main supply rail. The on-chip voltage regulator generates 1.8V for the core; the 2.7V minimum VDD ensures regulator headroom under 40MHz core clock and full GPIO toggling.
The 48-QFN-EP exposed thermal pad must be soldered to a continuous copper pour on the top PCB layer, with thermal vias to inner planes. Estimated theta_JA for a 4-layer board with 1 sq inch copper pour is approximately 35 C/W. Without the thermal pad soldered, junction temperature can exceed 125 C under full I/O load at industrial ambient.
Keep the BKGD / RESET trace short (under 25 mm) and route away from switching signals. The crystal traces (XOSC1, XOSC2) should be guarded by a ground ring to prevent noise injection from PWM outputs. Place the 0.1uF VDD caps before the I/O connector pin to suppress cable-discharge transients in appliance and industrial enclosures.
Avoid using PTA5/IRQ as a general output without confirming the IRQ-edge-select register is cleared, otherwise spurious interrupts wake the CPU. Do not exceed 5.5V on any pin; transients above 6V can trigger latch-up. Always vector the reset handler to clear the COP (watchdog) enable bit before any main-loop delay that exceeds the WDT timeout.
Thông tin tuân thủ
RoHS and lead-free confirmed by NXP product page. Industrial temperature grade -40C to +85C. AEC-Q100 not applicable for this MPN suffix; the automotive-qualified variant uses a different device designation.
