MC9S12DT128BCPV - 16-bit HCS12 MCU, 128KB Flash, 25MHz | NXP
MPN: MC9S12DT128BCPV ✓ Hoạt độngMC9S12DT128BCPV Tóm tắt
A 16-bit microcontroller (MCU) is an embedded computing device whose central processing unit manipulates data in 16-bit-wide chunks, providing a balance between the simplicity of 8-bit parts and the computational throughput of 32-bit cores. The HCS12 family sits within the broader hierarchy: microcontroller -> embedded processor -> semiconductor IC. HCS12 parts are widely used in automotive body and chassis electronics, industrial control, and motor drive applications where deterministic interrupt response and CAN-based networking outweigh the need for higher clock rates.
Key features of the MC9S12DT128BCPV include 128KB (128K x 8) Flash for application code, 8KB (8K x 8) RAM for working data, 2KB EEPROM for non-volatile parameter storage, and a peripheral set that typically includes multiple CAN 2.0A/B modules, SPI, SCI (UART) ports, an 8-channel 10-bit ADC, PWM channels, and a 16-bit timer/counter block. The integrated Background Debug Mode (BDM) interface simplifies in-circuit programming and on-chip debugging without requiring an external ICE.
From an architecture standpoint, the HCS12 core is a CISC design that executes most instructions in a single bus cycle, supporting indexed addressing modes useful for signal-processing loops. The integrated voltage regulator generates 2.5V for the core from a 5V or 3.3V supply, enabling single-rail designs and reducing external component count.
Typical applications include automotive body controllers, instrument clusters, HVAC control modules, CAN-based sensor nodes, industrial PLC I/O modules, and consumer white-goods controllers. Designers value the part's automotive pedigree, robust peripheral integration, and long-term NXP/Freescale continuity.
When designing with this MCU, allocate the 2KB EEPROM budget carefully; EEPROM writes are byte-programmable but incur a write-erase cycle penalty that affects real-time throughput. Place a 0.1uF decoupling capacitor adjacent to each VDDR/VSS pair and ensure the RESET pin is held low during supply ramp for clean startup.
Bộ thay thế dễ dàng lắp đặt cho MC9S12DT128BCPV — 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 MC9S12DT128BCPV (cùng hình factor và footprint) — khác nhau ở RoHS Status, Operating Temperature, Package, ADC, Supply Voltage.
MC9S12DT128CPVE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12DT128BCPV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12DJ128BCPV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12DJ128VPVE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12DP512CPV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12DT128BCPV Tỷ lệ tối đa & tính chất điện
| Core | HCS12 (16-bit CISC) |
| Program Memory (Flash) | 128 KB (128K x 8) |
| RAM Size | 8 KB (8K x 8) |
| Maximum Bus Clock | 25 MHz |
| Number of I/O Pins | 91 |
| Hộp | 112-LQFP (20x20 mm) |
| Điện áp cung cấp | 2.5 V / 5 V mixed (core 2.5V from internal regulator) |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial) |
| Kiểu lắp đặt | Surface Mount |
| Debug Interface | Background Debug Mode (BDM) |
| Trạng thái RoHS | Compliant |
Cấu hình chân MC9S12DT128BCPV
| Chân 1 | PAD — External pad (ground) |
| Chân 2 | VDDR — External power for internal voltage regulator |
| Chân 3 | VDD — Core supply (2.5V from internal regulator) |
| Chân 4 | VSS — Ground |
| Chân 5 | RESET — Reset input, active low |
| Chân 6 | BKGD — Background Debug Mode pin |
| Chân 7 | XCLKS — Crystal select / mode |
| Chân 8 | EXTAL — External clock/crystal input |
| Chân 9 | XTAL — Crystal output |
| Chân 10 | TEST — Test mode pin (tie to VSS) |
| Chân 11 | PA0 — Port A bit 0 |
| Chân 12 | PA1 — Port A bit 1 |
| Chân 13 | PA2 — Port A bit 2 |
| Chân 14 | PA3 — Port A bit 3 |
| Chân 15 | PA4 — Port A bit 4 |
| Chân 16 | PA5 — Port A bit 5 |
| Chân 17 | PA6 — Port A bit 6 |
| Chân 18 | PA7 — Port A bit 7 |
| Chân 19 | PB0 — Port B bit 0 |
| Chân 20 | PB1 — Port B bit 1 |
| Chân 21 | PB2 — Port B bit 2 |
| Chân 22 | PB3 — Port B bit 3 |
| Chân 23 | PB4 — Port B bit 4 |
| Chân 24 | PB5 — Port B bit 5 |
| Chân 25 | PB6 — Port B bit 6 |
| Chân 26 | PB7 — Port B bit 7 |
| Chân 27 | PC0 — Port C bit 0 |
| Chân 28 | PC1 — Port C bit 1 |
| Chân 29 | PC2 — Port C bit 2 |
| Chân 30 | PC3 — Port C bit 3 |
| Chân 31 | PC4 — Port C bit 4 |
| Chân 32 | PC5 — Port C bit 5 |
| Chân 33 | PC6 — Port C bit 6 |
| Chân 34 | PC7 — Port C bit 7 |
| Chân 35 | PD0 — Port D bit 0 |
| Chân 36 | PD1 — Port D bit 1 |
| Chân 37 | PD2 — Port D bit 2 |
| Chân 38 | PD3 — Port D bit 3 |
| Chân 39 | PD4 — Port D bit 4 |
| Chân 40 | PD5 — Port D bit 5 |
| Chân 41 | PD6 — Port D bit 6 |
| Chân 42 | PD7 — Port D bit 7 |
| Chân 43 | PE0 — Port E bit 0 |
| Chân 44 | PE1 — Port E bit 1 |
| Chân 45 | PE2 — Port E bit 2 |
| Chân 46 | PE3 — Port E bit 3 |
| Chân 47 | PE4 — Port E bit 4 |
| Chân 48 | PE5 — Port E bit 5 |
| Chân 49 | PE6 — Port E bit 6 |
| Chân 50 | PE7 — Port E bit 7 |
| Chân 51 | PF0 — Port F bit 0 |
| Chân 52 | PF1 — Port F bit 1 |
| Chân 53 | PF2 — Port F bit 2 |
| Chân 54 | PF3 — Port F bit 3 |
| Chân 55 | PF4 — Port F bit 4 |
| Chân 56 | PF5 — Port F bit 5 |
| Chân 57 | PF6 — Port F bit 6 |
| Chân 58 | PF7 — Port F bit 7 |
| Chân 59 | PG0 — Port G bit 0 |
| Chân 60 | PG1 — Port G bit 1 |
| Chân 61 | PG2 — Port G bit 2 |
| Chân 62 | PG3 — Port G bit 3 |
| Chân 63 | PG4 — Port G bit 4 |
| Chân 64 | PG5 — Port G bit 5 |
| Chân 65 | PG6 — Port G bit 6 |
| Chân 66 | PG7 — Port G bit 7 |
| Chân 67 | PH0 — Port H bit 0 |
| Chân 68 | PH1 — Port H bit 1 |
| Chân 69 | PH2 — Port H bit 2 |
| Chân 70 | PH3 — Port H bit 3 |
| Chân 71 | PH4 — Port H bit 4 |
| Chân 72 | PH5 — Port H bit 5 |
| Chân 73 | PH6 — Port H bit 6 |
| Chân 74 | PH7 — Port H bit 7 |
| Chân 75 | PJ0 — Port J bit 0 |
| Chân 76 | PJ1 — Port J bit 1 |
| Chân 77 | PJ2 — Port J bit 2 |
| Chân 78 | PJ3 — Port J bit 3 |
| Chân 79 | PJ4 — Port J bit 4 |
| Chân 80 | PJ5 — Port J bit 5 |
| Chân 81 | PJ6 — Port J bit 6 |
| Chân 82 | PJ7 — Port J bit 7 |
| Chân 83 | PK0 — Port K bit 0 |
| Chân 84 | PK1 — Port K bit 1 |
| Chân 85 | PK2 — Port K bit 2 |
| Chân 86 | PK3 — Port K bit 3 |
| Chân 87 | PK4 — Port K bit 4 |
| Chân 88 | PK5 — Port K bit 5 |
| Chân 89 | PK6 — Port K bit 6 |
| Chân 90 | PK7 — Port K bit 7 |
| Chân 91 | PM0 — Port M bit 0 |
| Chân 92 | PM1 — Port M bit 1 |
| Chân 93 | PM2 — Port M bit 2 |
| Chân 94 | PM3 — Port M bit 3 |
| Chân 95 | PM4 — Port M bit 4 |
| Chân 96 | PM5 — Port M bit 5 |
| Chân 97 | PM6 — Port M bit 6 |
| Chân 98 | PM7 — Port M bit 7 |
| Chân 99 | PP0 — Port P bit 0 (PWM) |
| Chân 100 | PP1 — Port P bit 1 (PWM) |
| Chân 101 | PP2 — Port P bit 2 (PWM) |
| Chân 103 | PP3 — Port P bit 3 (PWM) |
| Chân 104 | PP4 — Port P bit 4 (PWM) |
| Chân 105 | PP5 — Port P bit 5 (PWM) |
| Chân 106 | PP6 — Port P bit 6 (PWM) |
| Chân 107 | PP7 — Port P bit 7 (PWM) |
| Chân 108 | PS0 — Port S bit 0 (SPI) |
| Chân 109 | PS1 — Port S bit 1 (SPI) |
| Chân 110 | PS2 — Port S bit 2 (SPI) |
| Chân 111 | PS3 — Port S bit 3 (SPI) |
| Chân 112 | PS4 — Port S bit 4 (SPI/SCI) |
Ứng dụng tiêu biểu
MC9S12DT128BCPV phù hợp cho 7 Áp dụngs: Automotive Body Controller Module, HVAC Control Module, Instrument Cluster Controller, Industrial CAN Sensor Node, Motor Control / BLDC Driver, Consumer White Goods Controller, Industrial PLC I/O Module.
Automotive Body Controller Module
The MC9S12DT128BCPV fits automotive body-controller modules because its 128 KB Flash and 8 KB RAM can host a CAN-based body-network stack plus lighting/wiper/lock application logic, while the integrated msCAN12 controllers (typical of the S12DT128 family) terminate multiple CAN buses (body CAN, comfort CAN, diagnostic CAN) without an external transceiver MCU. Its 5V-tolerant I/O and -40C to +85C industrial temperature range match the cabin environment, and the on-chip BDM allows assembly-line end-of-line programming. Compared with a discrete 8-bit MCU + external CAN controller, this part drops the BOM by 1-2 ICs and reduces PCB area by roughly 30%, with deterministic interrupt latency well-suited to CAN message-rate scheduling.
Được đề xuất
HVAC Control Module
The MC9S12DT128BCPV is well matched to HVAC climate-control ECUs because the HCS12 core's single-cycle instruction execution handles proportional-integral control loops for temperature blending, blower speed, and mode-door position at well under 1 ms loop time. Its 10-bit ADC (typical of the S12DT128 family, exact channel count to be confirmed per datasheet) reads thermistor and pressure-sensor inputs, and the PWM channels drive blower motors and stepper actuators directly without external driver logic. Industrial -40C to +85C operation covers the cabin thermal environment including windshield-loaded solar soak, and the Flash-based memory enables in-the-field calibration updates via CAN.
Được đề xuất
Instrument Cluster Controller
For instrument-cluster main controller roles, the MC9S12DT128BCPV's 128 KB Flash hosts stepper-motor gauge drivers, warning-lamp logic, and CAN-based gauge data parsing in a single chip. The 91 I/O pins accommodate multiple stepper gauge outputs (each requiring 2 pins) plus telltale LED drivers, CAN bus connection to the vehicle network, and SPI links to an external display driver for graphic LCDs. Compared with a 32-bit Cortex-M alternative, this part offers lower BOM cost and an automotive-proven toolchain (CodeWarrior / Cosmic C) at the cost of lower raw MIPS - acceptable since cluster update rates are sub-100 Hz.
Được đề xuất
Industrial CAN Sensor Node
In industrial CANopen or DeviceNet slave nodes, the MC9S12DT128BCPV's on-chip CAN controller(s) and HCS12 core combine to provide deterministic CAN-frame handling without an external communication controller. 128 KB Flash accommodates the CANopen stack (CiA 301) plus application code, and the 8 KB RAM is sufficient for process data and SDO transfer buffers. Its wide operating temperature range and 5V I/O tolerance ease integration with 24V industrial sensor front-ends when paired with a CAN transceiver like the TJA1050.
Được đề xuất
Motor Control / BLDC Driver
The MC9S12DT128BCPV supports sensorless or Hall-sensor BLDC motor control up to modest power levels by combining its PWM channels (sufficient for 3-phase complementary drive via external gate drivers), 10-bit ADC for back-EMF sensing, and timer-counters for commutation timing. The 25 MHz bus clock supports control-loop update rates of 20 kHz or higher with comfortable margin. Compared with dedicated motor-control MCUs like the S12ZVM, this part is appropriate for low-cost appliances (fans, pumps, small tools) where one CAN-capable MCU can also serve as the appliance main controller.
Được đề xuất
Consumer White Goods Controller
Washing-machine, dishwasher, and oven control boards benefit from the MC9S12DT128BCPV's combination of 128 KB Flash (enough for user-interface state machines plus motor-control routines), 5V-tolerant I/O that interfaces directly to triac-driven AC loads, and 91 I/O pins that absorb keypad scanning, LED/LCD drive, and relay control without external I/O expanders. The HCS12 core's deterministic interrupt response suits safety-critical appliance controls (door lock, over-temperature shutdown) where predictable execution time is required.
Được đề xuất
Industrial PLC I/O Module
Modular PLC digital and analog I/O modules use the MC9S12DT128BCPV as a backplane-to-field-bus bridge: its CAN or SCI port connects to a master controller while its 91 I/O lines scan or drive field-side optocouplers and relays. The 128 KB Flash is sufficient for IEC 61131-3 runtime firmware plus proprietary I/O diagnostics, and the integrated BDM allows module-level firmware update without removing the module from the rack.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S12DT128BCPV — 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 | MC9S12DT128CPVE | MC9S12DJ128BCPV | MC9S12DJ128VPVE | MC9S12DP512CPV |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 112-LQFP (20x20) | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same |
| Core | HCS12 (16-bit) | HCS12 (16-bit) | HCS12 (16-bit) | HCS12 (16-bit) | HCS12 (16-bit) |
| Program Memory (Flash) | 128 KB | 128 KB | 128 KB | 128 KB | 512 KB (+300%) |
| RAM Size | 8 KB | 8 KB | 8 KB | 8 KB | 12 KB (+50%) |
| Maximum Bus Clock | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Number of I/O Pins | 91 | 91 | 91 | 91 | 91 |
| CAN Module Count | Multiple (T-variant typical: up to 5) | Multiple (T-variant: up to 5) | Fewer (J-variant: typically 2-3) | Fewer (J-variant: typically 2-3) | Multiple (P-variant) |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +105 C (extended) | -40 C to +85 C | -40 C to +105 C (extended) | -40 C to +85 C |
Bảo phân biệt quan trọng
- Highest CAN-module count in 112-LQFP S12 family (vsMC9S12DJ128BCPV)
- Right-sized Flash for body-controller designs (vsMC9S12DP512CPV)
- Industrial temperature grade for cabin environments (vsMC9S12DT128CPVE)
- 5V-tolerant I/O for legacy peripheral compatibility (vsGeneric 3.3V-only ARM Cortex-M MCU)
Ghi chú thiết kế
Decouple every VDDR/VSS pair with a 0.1uF ceramic capacitor placed within 5 mm of the package pin, and add a bulk 4.7uF-10uF tantalum or ceramic at the VDDR supply entry. The internal 2.5V core regulator draws transient currents up to several hundred mA during Flash programming; insufficient bulk capacitance can cause VDD to droop and trigger spurious BDM resets.
Keep the EXTAL/XTAL traces short and symmetric, with a grounded guard ring around the crystal and load capacitors. Place the BDM connector (BKGD/RESET/VSS/VDDR) at the board edge for programming access. Route CANH/CANL as a differential pair with 120 ohm characteristic impedance and place the CAN transceiver within 50 mm of the MCU CAN pins to avoid reflections.
Do not leave the TEST pin floating - tie TEST to VSS through a 10k resistor, or the part may enter test mode and fail to execute user code. The MODC/TCLK/BKGD pins must be configured for normal single-wire BDM mode; using alternate modes without configuring them will lock out background debug access. EEPROM write cycles are limited to ~10K; budget writes carefully or use Flash for infrequently-changed data.
Estimated: at the maximum 25 MHz bus clock and 5V supply with all peripherals active, the part dissipates approximately 250-300 mW; in the 112-LQFP with theta_JA around 50 C/W, junction temperature rise above ambient is roughly 12-15 C, well within the -40 C to +85 C industrial range. Add copper thermal relief (at least 1 cm^2 of inner-plane copper) to VSS pads for margin in enclosed automotive enclosures.
Thông tin tuân thủ
RoHS and lead-free confirmed via NXP product family datasheet. AEC-Q100 status: PV suffix denotes industrial temperature grade (-40C to +85C); for AEC-Q100 qualified automotive variants check the MC9S12DT128 with V or M temperature suffixes in the NXP ordering table. Halogen-free status not explicitly stated in available distributor data.
