S9S12DG12F1CFUE - 16-bit HCS12 MCU, 128KB Flash, 25MHz | NXP
MPN： S9S12DG12F1CFUE ✗ 停產S9S12DG12F1CFUE 概覽
What is an HCS12 microcontroller? The HCS12 (also called S12) is a 16-bit CISC microcontroller family introduced by Motorola (later Freescale, now NXP) as the evolution of the HC11 architecture. HCS12 devices belong to the broader category of automotive microcontrollers within the embedded MCU hierarchy (MCU -> microcontroller -> embedded processor -> semiconductor). The S12 core offers a rich peripheral set, large unified memory mapping, and BDM (Background Debug Mode) for non-intrusive in-circuit debug, making it a workhorse for automotive body electronics, industrial control, and white-goods motor control.
Key features of the S9S12DG12F1CFUE include 128KB (128K x 8) Flash, 2KB to 4KB RAM depending on mask set, 25MHz maximum bus frequency, dual 10-bit ADC with 8 channels each, dual SCI/UART, an 8-channel enhanced capture timer, and a -40C to +85C automotive operating temperature range. The wide 2.5V/5V supply tolerance allows direct interfacing to 5V automotive sensors without level shifters.
Technically, the S9S12DG12F1CFUE uses the S12 CPU with a 16-bit ALU, 20-bit address bus, and BDM for debug. The peripheral set is identical to the legacy MC9S12DG128 (the S9S12DG12F1CFUE is the automotive-qualified ordering code for that die), so designers familiar with CodeWarrior HC(S)12 toolchains can migrate existing firmware with minimal effort. The PQFP-80 footprint provides generous PCB escape routing for the 16-bit external bus when expanded memory is needed.
Typical applications include automotive body control modules (BCM), instrument clusters, HVAC actuators, lighting controllers, anti-lock brake system (ABS) sensor interfaces, and industrial CAN-node endpoints. The automotive-grade qualification (per NXP ordering code 'S' prefix) makes the part suitable for under-hood and chassis-mounted ECUs that must survive wide temperature swings.
When designing with the S9S12DG12F1CFUE, engineers should note that the part is now reported by NXP as End-of-Life (EOL) for new designs; long-term production runs should evaluate the active S12G or S12XS successor families, while existing designs can still source the part through authorized distributors. Decoupling must follow NXP's AN2720 guidance with 100nF ceramic caps on every VDD/VSS pair.
This page synthesizes distributor pricing, drop-in same-package alternatives from the S9S12 family, and design considerations that complement the manufacturer datasheet rather than duplicating it.
直接替換替代品，適用於 S9S12DG12F1CFUE — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： S9S12DG12F1CFUE （相同外形與佔位） — 差異在於 Package, Core, Operating Temperature, Program Memory Size, EEPROM Size.
MC9S12DG128CFUE
✅ 直接替換📋 參考替代品（不在目錄中）
MC9S12DB128CFUE
✅ 直接替換聯絡詢價
查看資料表 →MC9S12DJ128CFUE
✅ 直接替換📋 參考替代品（不在目錄中）
MC9S12A128CFUE
✅ 直接替換📋 參考替代品（不在目錄中）
S9S12B128F0MFUE
✅ 直接替換聯絡詢價
查看資料表 →S9S12H256J2VFVER
✅ 直接替換聯絡詢價
查看資料表 →MC9S12DT128MPVE
✅ 直接替換聯絡詢價
查看資料表 →S9S12DG12F1CFUE 最大額定值與電氣特性
| Core | HCS12 (S12) |
| Architecture | 16-bit CISC |
| Maximum Bus Frequency | 25 MHz |
| Program Flash | 128 KB (128K x 8) |
| 供應電壓 | 2.5 V / 5 V (wide range) |
| 工作溫度 | -40 C to +85 C |
| 封裝 | 80-pin PQFP (QFP-80, 14x14 mm) |
| 安裝類型 | Surface Mount |
| ADC | 2 x 10-bit, 8 channels each |
| SCI (UART) | 2 channels |
| Enhanced Capture Timer | 8 channels |
| Automotive Qualified | Yes |
S9S12DG12F1CFUE 腳位配置
| 腳位 1 | VSS — Digital ground |
| 腳位 2 | VDDR — Voltage regulator supply |
| 腳位 3 | VDDX — External I/O supply (5V or 3.3V) |
| 腳位 4 | RESET — Active-low reset input |
| 腳位 5 | MODC — Mode control for BDM/normal operation |
| 腳位 6 | XTAL — Oscillator input |
| 腳位 7 | EXTAL — Oscillator output |
| 腳位 8 | VSSPLL — PLL ground |
| 腳位 9 | VDDPLL — PLL supply |
| 腳位 10 | TCLK — Timer clock input |
| 腳位 11 | BKGD — Background Debug Mode (BDM) |
| 腳位 12 | PA0 — Port A bit 0 / IOC0 |
| 腳位 13 | PA1 — Port A bit 1 / IOC1 |
| 腳位 14 | PA2 — Port A bit 2 / IOC2 |
| 腳位 15 | PA3 — Port A bit 3 / IOC3 |
| 腳位 16 | PA4 — Port A bit 4 / IOC4 |
| 腳位 17 | PA5 — Port A bit 5 / IOC5 |
| 腳位 18 | PA6 — Port A bit 6 / IOC6 |
| 腳位 19 | PA7 — Port A bit 7 / IOC7 |
| 腳位 20 | VSS — Digital ground |
| 腳位 21 | PAD0 — Port AD bit 0 / AN0 |
| 腳位 22 | PAD1 — Port AD bit 1 / AN1 |
| 腳位 23 | PAD2 — Port AD bit 2 / AN2 |
| 腳位 24 | PAD3 — Port AD bit 3 / AN3 |
| 腳位 25 | PAD4 — Port AD bit 4 / AN4 |
| 腳位 26 | PAD5 — Port AD bit 5 / AN5 |
| 腳位 27 | PAD6 — Port AD bit 6 / AN6 |
| 腳位 28 | PAD7 — Port AD bit 7 / AN7 |
| 腳位 29 | VDDA — ADC supply |
| 腳位 30 | VSSA — ADC ground |
| 腳位 31 | PAD8 — Port AD bit 8 / AN8 |
| 腳位 32 | PAD9 — Port AD bit 9 / AN9 |
| 腳位 33 | PAD10 — Port AD bit 10 / AN10 |
| 腳位 34 | PAD11 — Port AD bit 11 / AN11 |
| 腳位 35 | PAD12 — Port AD bit 12 / AN12 |
| 腳位 36 | PAD13 — Port AD bit 13 / AN13 |
| 腳位 37 | PAD14 — Port AD bit 14 / AN14 |
| 腳位 38 | PAD15 — Port AD bit 15 / AN15 |
| 腳位 39 | VSS — Digital ground |
| 腳位 40 | VDD — Digital supply (2.5V core) |
| 腳位 41 | PB0 — Port B bit 0 / IOC0 alternate |
| 腳位 42 | PB1 — Port B bit 1 / IOC1 alternate |
| 腳位 43 | PB2 — Port B bit 2 / IOC2 alternate |
| 腳位 44 | PB3 — Port B bit 3 / IOC3 alternate |
| 腳位 45 | PB4 — Port B bit 4 / IOC4 alternate |
| 腳位 46 | PB5 — Port B bit 5 / IOC5 alternate |
| 腳位 47 | PB6 — Port B bit 6 / IOC6 alternate |
| 腳位 48 | PB7 — Port B bit 7 / IOC7 alternate |
| 腳位 49 | PE0 — Port E bit 0 / IRQ |
| 腳位 50 | PE1 — Port E bit 1 / XIRQ |
| 腳位 51 | PE2 — Port E bit 2 |
| 腳位 52 | PE3 — Port E bit 3 |
| 腳位 53 | PE4 — Port E bit 4 |
| 腳位 54 | PE5 — Port E bit 5 |
| 腳位 55 | PE6 — Port E bit 6 |
| 腳位 56 | PE7 — Port E bit 7 |
| 腳位 57 | PH0 — Port H bit 0 / SPI SCK |
| 腳位 58 | PH1 — Port H bit 1 / SPI MOSI |
| 腳位 59 | PH2 — Port H bit 2 / SPI MISO |
| 腳位 60 | PH3 — Port H bit 3 / SPI SS |
| 腳位 61 | PH4 — Port H bit 4 |
| 腳位 62 | PH5 — Port H bit 5 |
| 腳位 63 | PH6 — Port H bit 6 |
| 腳位 64 | PH7 — Port H bit 7 |
| 腳位 65 | PJ0 — Port J bit 0 / TxD0 |
| 腳位 66 | PJ1 — Port J bit 1 / RxD0 |
| 腳位 67 | PJ2 — Port J bit 2 / TxD1 |
| 腳位 68 | PJ3 — Port J bit 3 / RxD1 |
| 腳位 69 | PJ4 — Port J bit 4 |
| 腳位 70 | PJ5 — Port J bit 5 |
| 腳位 71 | PJ6 — Port J bit 6 |
| 腳位 72 | PJ7 — Port J bit 7 |
| 腳位 73 | PK0 — Port K bit 0 / address bit |
| 腳位 74 | PK1 — Port K bit 1 / address bit |
| 腳位 75 | PK2 — Port K bit 2 / address bit |
| 腳位 76 | PK3 — Port K bit 3 / address bit |
| 腳位 77 | PK4 — Port K bit 4 |
| 腳位 78 | PK5 — Port K bit 5 |
| 腳位 79 | PK6 — Port K bit 6 |
| 腳位 80 | PK7 — Port K bit 7 |
典型應用
S9S12DG12F1CFUE 適用於 6 應用s: Automotive Body Control Module (BCM), Instrument Cluster Controller, HVAC Control Module, Lighting Control Module, Industrial CAN-Node Endpoint, Anti-Lock Brake Sensor Interface.
Automotive Body Control Module (BCM)
The S9S12DG12F1CFUE fits automotive BCM designs thanks to its 128 KB Flash for door-zone, lighting, and wiper logic plus two SCI channels for LIN-master communication to seat and mirror nodes. Its -40C to +85C operating range covers under-cabin and under-hood near-engine installations, and the dual 10-bit ADC banks interface directly to 5V analog sensors without external level shifters. Using the 80-QFP footprint keeps the PCB compact while leaving enough peripheral bandwidth for periodic LIN polling loops.
推薦
Instrument Cluster Controller
The S9S12DG12F1CFUE's 25 MHz bus and dual 10-bit ADC make it well suited to instrument cluster gauge drivers that read fuel-level, temperature, and speed sensors while driving stepper or PWM-controlled needle motors. The 8-channel enhanced capture timer supports precise tachometer pulse-counting for legacy engine-RPM signals, and the 80-QFP package exposes enough GPIO for backlight dimming and telltale LEDs. Per the S12DG128 datasheet, the 16-bit ALU handles BCD-to-binary conversion and segment-table lookups in real time.
推薦
HVAC Control Module
HVAC control modules benefit from the S9S12DG12F1CFUE's 128 KB Flash for blend-door and blower-speed control algorithms plus two SCI ports for serial communication with the cabin climate sensor hub. Its wide 2.5V/5V supply tolerance allows the chip to share the 5V analog rail with NTC temperature sensors and actuator drivers, eliminating a separate voltage regulator. The dual ADC banks sample multiple thermistor channels concurrently, supporting fast cabin-temperature convergence after door openings.
推薦
Lighting Control Module
The S9S12DG12F1CFUE serves as the central MCU in headlight-leveling and adaptive-lighting modules, where the 8-channel enhanced capture timer reads rotary-position sensors for beam-aim adjustment. Its 128 KB Flash holds PWM fade-in/out tables and Daytime-Running-Light state machines, while the SCI channels link to the body controller over LIN for command and diagnostics. Automotive-grade qualification on the 'S9' prefix ordering code ensures PPAP documentation is available for OEM lighting programs.
推薦
Industrial CAN-Node Endpoint
Although the base S9S12DG12F1CFUE lacks an on-chip MSCAN, it can still serve as an industrial CAN-node endpoint when paired with an external MCP2515 stand-alone CAN controller over SPI, leveraging one of its SCI ports for higher-level diagnostics. The 25 MHz core executes the CANopen or DeviceNet slave stack comfortably, and the 80-QFP package provides ample GPIO for local sensor aggregation in a factory-automation cell. The wide operating temperature range and automotive-grade qualification suit harsh industrial cabinets.
推薦
Anti-Lock Brake Sensor Interface
The S9S12DG12F1CFUE's 8-channel enhanced capture timer is well matched to ABS wheel-speed sensor interfaces, capturing Hall-effect pulses at high RPM without interrupt saturation. Its 128 KB Flash stores wheel-slip threshold tables and OBD-II diagnostic routines, while the dual ADC banks monitor brake-fluid pressure transducers. The automotive-grade qualification and -40C to +85C rating are essential for chassis-mounted ECUs that experience brake-disc radiated heat.
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推薦產品摘要
工程參考資料，適用於 S9S12DG12F1CFUE — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MC9S12DG128CFUE | MC9S12DB128CFUE | MC9S12DJ128CFUE | MC9S12A128CFUE | S9S12B128F0MFUE | S9S12H256J2VFVER | MC9S12DT128MPVE |
|---|---|---|---|---|---|---|---|---|
| Package | 80-pin PQFP (14x14 mm) | 80-pin PQFP - same | 80-pin PQFP - same | 80-pin PQFP - same | 80-pin PQFP - same | 80-pin PQFP - same | 80-pin PQFP - same | 80-pin PQFP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Program Flash | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 256 KB | 128 KB |
| Max Bus Frequency | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Automotive Qualified | Yes | No (commercial) | No (commercial) | No (commercial) | No (commercial) | Yes | Yes | No (commercial) |
| On-chip CAN (MSCAN) | No | No | No | Yes | No | Yes (B-family) | Yes | Yes |
| Operating Temperature | -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 | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Core Family | HCS12 (S12DG12) | HCS12 (S12DG128) | HCS12 (S12DB128) | HCS12 (S12DJ128) | HCS12 (S12A128) | HCS12 (S12B128) | HCS12 (S12H256) | HCS12 (S12DT128) |
主要差異化特點
- Largest Flash in 80-QFP S12 family (對比S9S12G64F0MLF)
- Automotive-grade qualification on PQFP-80 (對比MC9S12DG128CFUE)
- Dual 10-bit ADC banks without external multiplexer (對比S9S12GN32F1MLC)
設計說明
The S9S12DG12F1CFUE requires separate analog (VDDA/VSSA) and digital (VDD/VSS) supplies, plus an on-chip regulator supply (VDDR) that must be bypassed with a 100 nF ceramic capacitor. Per NXP AN2720, place one 100 nF X7R cap on each VDD/VSS pair and one 4.7 uF tantalum on VDDA to keep ADC noise below 1 LSB. Failing to isolate VDDA from VDD will inject switching noise into the 10-bit ADC readings.
Because the S9S12DG12F1CFUE ships without on-chip MSCAN, designs that need CAN must either step up to the S9S12DJ128F1CFUE pin-compatible variant or add an external MCP2515 SPI-CAN bridge. Do not assume SCI bit-banging is acceptable for automotive CAN-FD - bit-stuffing errors will accumulate above 125 kbps and fail OEM conformance tests.
The 80-pin PQFP (14x14 mm) has 0.65 mm pitch leads that demand 0.4 mm-wide traces with 0.2 mm clearance to escape on a 4-layer FR-4 stack-up. Per IPC-2221, allocate at least one continuous ground plane under the package to keep the BDM BKGD pin noise margin above the 2.0 V logic-high threshold. Recommended footprint per NXP package drawing 98ARS00031D.
合規資訊
Automotive qualification inferred from the 'S9' NXP ordering-code prefix; RoHS, REACH, lead-free and halogen-free status not present in the verified web data and marked unknown. Refer to NXP product page for current declarations.
