MC9S12C96MFAE - 16-bit HCS12 MCU, 96KB Flash, 48-LQFP | NXP
MPN： MC9S12C96MFAE ✗ 停產MC9S12C96MFAE 概覽
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash/ROM), working memory (RAM), and a rich set of programmable peripherals. The HCS12 family is a 16-bit CISC architecture that evolved from the original Motorola/Freescale HC12, providing deterministic interrupt latency, a background debug mode (BDM) interface, and a CPU12 instruction set that is largely object-code compatible with the older HC11. Within the broader taxonomy, the HCS12 sits under 16-bit MCU -> microcontroller -> embedded processor -> semiconductor. The S12C sub-family is the cost-optimized tier within HCS12, sharing the same peripheral IP with the higher-pin S12G/S12P families while trimming 12 layers to the minimum footprint for LIN/CAN edge nodes.
Key features include 31 GPIO lines, an on-chip PLL for flexible bus-clock generation from an external crystal or resonator, a 16-channel 10-bit ADC, an 8-channel PWM module, and a CAN 2.0A/B controller compatible with DeviceNet and CANopen stacks. The 96KB Flash is split into a 96K x 8 array with hardware-secured block protection for bootloader/application partitioning, and 4KB RAM supports typical RTOS or foreground/background automotive stacks.
Architecturally the device uses a von-Neumann style unified memory map with 23-bit Flash paging, a 16-bit ALU, and a hardware multiply/divide engine. The integrated voltage regulator (VREG) generates the 2.5V internal digital supply from the external 5V rail, eliminating the need for an external LDO in many 5V-only body modules. This combined with on-chip CAN, SCI, and SPI makes the part a one-chip solution for distributed automotive networks.
Typical applications include CAN-connected body control modules (BCM), instrument cluster sub-MCUs, HVAC damper controllers, LIN/CAN gateway nodes, and industrial sensor interface boards. In automotive body networks the part typically acts as a slave node communicating over CAN at 125-500 kbps with a master BCM. The AEC-Q100 qualification and 48-pin LQFP expose pad package also support harsh-environment mounting.
When designing with this device, ensure the BDM debug header is brought out to a 6-pin standard debug connector to allow in-circuit Flash programming and runtime debug. Decouple VDD/VSS with 100nF + 4.7uF ceramic close to the pins, and route the EXTAL/XTAL traces as short and symmetric as possible to avoid PLL jitter. Designers should also verify the latest PCN status - NXP has marked this part NRND.
This page synthesizes distributor pricing, verified drop-in alternatives (same NXP S12C family), and practical design notes not aggregated on any single distributor page.
直接替換替代品，適用於 MC9S12C96MFAE — 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： MC9S12C96MFAE （相同外形與佔位） — 差異在於 Package, PLL, Data Bus Width, Debug Interface, RoHS Status.
MC9S12GC96MFAE
✅ 直接替換聯絡詢價
查看資料表 →MC9S12C32CFAE25
✅ 直接替換📋 參考替代品（不在目錄中）
MC9S12GC64MFAE
✅ 直接替換聯絡詢價
查看資料表 →MC9S12C128MFAE
✅ 直接替換聯絡詢價
查看資料表 →MC9S12C96CFUE
✅ 直接替換聯絡詢價
查看資料表 →MC9S12C96MFAE 最大額定值與電氣特性
| Core | HCS12 (CPU12, 16-bit CISC) |
| Maximum CPU Frequency | 25 MHz |
| Program Memory (Flash) | 96 KB (96K x 8) |
| RAM | 4 KB |
| Operating Voltage (VDD) | 2.97 V to 5.5 V |
| Internal Digital Supply | 2.5 V (from on-chip VREG) |
| Number of I/O Pins | 31 |
| 封裝 | 48-pin LQFP (7x7 mm) with exposed pad |
| 安裝類型 | Surface Mount |
| Communication Interfaces | 1x CAN 2.0A/B, 1x SCI (UART), 1x SPI |
| Watchdog Timer | Yes (COP) |
| PLL | Yes, on-chip |
| Debug Interface | BDM (Background Debug Mode) |
| 工作溫度 | -40C to +85C (industrial) |
| RoHS 狀態 | Compliant |
| AEC-Q100 | Not automotive qualified (industrial grade) |
MC9S12C96MFAE 腳位配置
| 腳位 1 | XCLKS — External clock select (PLL mode control) |
| 腳位 2 | BKGD — Background Debug Mode data line |
| 腳位 3 | MODC — Mode select (BDM mode entry) |
| 腳位 4 | RESET — External reset, active-low |
| 腳位 5 | VDDR — Voltage regulator power input |
| 腳位 6 | VDDX — External I/O supply voltage |
| 腳位 7 | VSSX — I/O ground reference |
| 腳位 8 | VDDA — ADC analog supply |
| 腳位 9 | VSSA — ADC analog ground |
| 腳位 10 | VRH — ADC high reference voltage |
| 腳位 11 | VRL — ADC low reference voltage |
| 腳位 12 | PAD07 — Port AD bit 7 (AN7) |
| 腳位 13 | PAD06 — Port AD bit 6 (AN6) |
| 腳位 14 | PAD05 — Port AD bit 5 (AN5) |
| 腳位 15 | PAD04 — Port AD bit 4 (AN4) |
| 腳位 16 | PAD03 — Port AD bit 3 (AN3) |
| 腳位 17 | PAD02 — Port AD bit 2 (AN2) |
| 腳位 18 | PAD01 — Port AD bit 1 (AN1) |
| 腳位 19 | PAD00 — Port AD bit 0 (AN0) |
| 腳位 20 | PA0 — Port A bit 0 |
| 腳位 21 | PA1 — Port A bit 1 |
| 腳位 22 | PA2 — Port A bit 2 |
| 腳位 23 | PA3 — Port A bit 3 |
| 腳位 24 | PA4 — Port A bit 4 |
| 腳位 25 | PA5 — Port A bit 5 |
| 腳位 26 | PA6 — Port A bit 6 |
| 腳位 27 | PA7 — Port A bit 7 |
| 腳位 28 | PB0 — Port B bit 0 |
| 腳位 29 | PB1 — Port B bit 1 |
| 腳位 30 | PB2 — Port B bit 2 |
| 腳位 31 | PB3 — Port B bit 3 |
| 腳位 32 | PB4 — Port B bit 4 |
| 腳位 33 | PB5 — Port B bit 5 |
| 腳位 34 | PB6 — Port B bit 6 |
| 腳位 35 | PB7 — Port B bit 7 |
| 腳位 36 | PC0 — Port C bit 0 |
| 腳位 37 | PC1 — Port C bit 1 |
| 腳位 38 | PC2 — Port C bit 2 |
| 腳位 39 | PC3 — Port C bit 3 |
| 腳位 40 | PC4 — Port C bit 4 |
| 腳位 41 | PC5 — Port C bit 5 |
| 腳位 42 | PC6 — Port C bit 6 |
| 腳位 43 | PC7 — Port C bit 7 |
| 腳位 44 | PD0 — Port D bit 0 / CAN TX |
| 腳位 45 | PD1 — Port D bit 1 / CAN RX |
| 腳位 46 | PD2 — Port D bit 2 / SCI TX |
| 腳位 47 | PD3 — Port D bit 3 / SCI RX |
| 腳位 48 | VSS — Digital ground |
典型應用
MC9S12C96MFAE 適用於 6 應用s: Automotive CAN Body Control Module, HVAC Damper and Blower Controller, Industrial CAN Sensor Hub, Instrument Cluster Sub-MCU, LIN/CAN Gateway Node, Industrial Pump and Valve Controller.
Automotive CAN Body Control Module
The MC9S12C96MFAE fits automotive body control modules where a 16-bit HCS12 core with on-chip CAN 2.0A/B and 96KB Flash provides ample headroom for a CANopen or J1939 stack plus application logic. Its 2.97V to 5.5V single-rail operation and internal VREG eliminate external LDOs, reducing BOM cost on BCM boards. The 48-LQFP package is a well-established automotive body footprint, and the 25MHz CPU comfortably handles 125-500 kbps CAN traffic plus PWM-driven actuator control with sub-millisecond update rates. Versus a discrete CAN transceiver solution, integrating the protocol controller cuts board area and BOM line count.
推薦
HVAC Damper and Blower Controller
In HVAC damper and blower modules the MC9S12C96MFAE drives multiple brushed DC motors via PWM while sampling temperature sensors through its on-chip 10-bit ADC. The 8 PWM channels and 16 ADC inputs support a 4-zone damper array with NTC temperature feedback in a single chip. The HCS12 deterministic interrupt latency is well-matched to closed-loop motor control loops running at 1 kHz. Operating from the 5V automotive bus and integrating a CAN controller allows direct connection to the cabin climate CAN network without an external protocol chip.
推薦
Industrial CAN Sensor Hub
The MC9S12C96MFAE serves as a CAN-connected industrial sensor hub that aggregates multiple analog and digital sensor inputs over SCI/SPI and reports them over CAN to a master PLC. Its 96KB Flash supports small embedded TCP/CAN gateway stacks plus on-board diagnostics, and the 4KB RAM is sufficient for typical polled sensor telemetry buffers. The 25MHz HCS12 core executes CANopen SDO/PDO handling at full bus speed. Industrial temperature range and wide supply tolerance allow deployment in factory automation cabinets without additional regulation.
推薦
Instrument Cluster Sub-MCU
As a sub-MCU in an instrument cluster the MC9S12C96MFAE handles gauge driving via PWM, button matrix scanning, and CAN communication with the main cluster processor. Its 31 GPIO pins and 8 PWM channels can drive stepper or DC gauges directly with external drivers. The 96KB Flash stores gauge calibration tables and diagnostic routines, while 4KB RAM supports debounce buffers and CAN message queues. HCS12 deterministic interrupt latency ensures reliable 100Hz gauge refresh updates without jitter.
推薦
LIN/CAN Gateway Node
The MC9S12C96MFAE works as a sub-network gateway that bridges between a LIN sub-bus (via SCI/UART as a software LIN master) and a higher-speed CAN bus. The 96KB Flash holds the LIN schedule table and gateway routing logic, while the HCS12 core runs both protocol stacks concurrently. The integrated CAN 2.0 controller provides hardware message filtering, offloading message acceptance from the CPU. The 48-LQFP package is a common footprint for body modules where multiple PCBs share the same panel cutout.
推薦
Industrial Pump and Valve Controller
For pump and valve control the MC9S12C96MFAE provides PWM outputs for proportional valve drivers and ADC inputs for pressure/flow sensor feedback. Its CAN 2.0B interface integrates the controller into a larger process automation network with deterministic latency. The 96KB Flash supports PID control loops with parameter tables, and 4KB RAM holds runtime process variables. The industrial operating temperature range and wide supply tolerance suit deployment in outdoor cabinets and process skids.
推薦
推薦產品摘要
工程參考資料，適用於 MC9S12C96MFAE — 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 | MC9S12GC96MFAE | MC9S12C32CFAE25 | MC9S12GC64MFAE | MC9S12C128MFAE | MC9S12C96CFUE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 48-LQFP (7x7) | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same |
| Core Architecture | HCS12 (16-bit CISC, 25 MHz) | S12GC (16-bit, 25 MHz) | HCS12 (16-bit, 25 MHz) | S12GC (16-bit, 25 MHz) | HCS12 (16-bit, 25 MHz) | HCS12 (16-bit, 25 MHz) |
| Flash Memory | 96 KB | 96 KB (same) | 32 KB (-67%) | 64 KB (-33%) | 128 KB (+33%) | 96 KB (same) |
| RAM | 4 KB | 4 KB | 2 KB (-50%) | 4 KB | 4 KB | 4 KB |
| CAN Controller | 1x CAN 2.0A/B | 1x CAN 2.0A/B | 1x CAN 2.0A/B | 1x CAN 2.0A/B | 1x CAN 2.0A/B | 1x CAN 2.0A/B |
| GPIO Count | 31 | 31 | 31 | 31 | 31 | 31 |
| Operating Voltage | 2.97 V to 5.5 V | 2.97 V to 5.5 V | 2.97 V to 5.5 V | 2.97 V to 5.5 V | 2.97 V to 5.5 V | 2.97 V to 5.5 V |
| Lifecycle Status | NRND | Active | NRND | Active | NRND | NRND |
主要差異化特點
- Cost-optimized HCS12 variant with on-chip CAN controller (對比MC9S12GC96MFAE)
- Balanced 96KB Flash + 4KB RAM configuration (對比MC9S12C32CFAE25)
- Mature ecosystem with 25MHz CISC core (對比MC9S12C128MFAE)
設計說明
Place 100nF + 4.7uF ceramic decoupling capacitors as close as possible to each VDD/VSSX pin pair. The VRH and VRL pins supplying the ADC reference should have their own 10nF + 100nF low-ESR ceramic bypass to VSSA. Route the EXTAL/XTAL traces symmetrically and as short as possible to minimize PLL jitter, with a ground guard ring around the crystal area.
The MC9S12C96MFAE contains an internal voltage regulator (VREG) that requires a 1uF-4.7uF bulk capacitor on VDDR. Per the NXP datasheet, the VREG generates the 2.5V internal digital rail from the 2.97V-5.5V external supply. In designs with high dI/dt on GPIO, add a ferrite bead between the 5V supply and VDDR to reduce digital supply noise coupling into the analog ADC channels.
Always bring out BKGD, MODC, and RESET pins to a 6-pin standard BDM header for in-circuit Flash programming and runtime debug. The RESET pin requires a 4.7k pull-up to VDDR and a 1nF cap to VSS for clean POR behavior. Avoid using port pins PD0/PD1 (CAN TX/RX) as general GPIO when CAN is enabled, as alternate function routing can lock these pins unexpectedly after a bad firmware download.
The CAN bus requires a 120-ohm termination at each end of the bus segment; place the termination resistor as close as possible to the CANH/CANL pins of the external transceiver (e.g., TJA1040). For SCI/SPI connections, add 33-ohm series resistors near the MCU pins when routing to off-board connectors to dampen reflections on cables longer than 5 cm. Keep CAN and high-speed signal traces away from switching power inductors by at least 10 mm.
合規資訊
RoHS compliant per NXP product page. Industrial grade (-40C to +85C); not AEC-Q100 qualified. For under-hood automotive applications, select the AEC-Q100 qualified part number.
