MCHC11F1CFNE5 - 8-Bit HC11 MCU 5MHz ROMless 68-PLCC | NXP
MPN: MCHC11F1CFNE5 ✓ Hoạt độngMCHC11F1CFNE5 Tóm tắt
An HC11 microcontroller is a member of the Motorola/Freescale/NXP 6800-derived 8-bit M68HC11 family of microcontrollers — historically one of the most widely deployed 8-bit MCU architectures for automotive body electronics, industrial control, and consumer embedded designs. The HC11 combines a CPU12-like instruction set with on-chip peripherals such as timers, serial communications interface (SCI), serial peripheral interface (SPI), analog-to-digital converters, and general-purpose I/O. 'ROMless' indicates the device has no internal program memory and relies entirely on external EPROM/Flash for code storage, simplifying prototyping and field-update workflows.
Key features of the MCHC11F1CFNE5 include a 5MHz maximum bus clock, an 8-bit data path with 16-bit addressing capability, 1KB of on-chip RAM (per the Mouser catalog summary), 512 bytes of on-chip EEPROM, multiple 8-bit I/O ports, and a comprehensive interrupt and reset architecture. The device integrates an SCI, an SPI, a programmable timer system, pulse-width modulation channels, and an 8-channel 8-bit ADC. Peripherals are accessible via a unified memory-mapped register interface.
Architecturally the MCHC11F1CFNE5 uses the HC11 CPU core with a 16-bit internal index/data structure (X, Y, SP, PC), allowing C and assembly compilers familiar with the legacy Freescale toolchain to target it directly. The ROMless memory map provides a 64KB linear address space and dedicated modes (single-chip, expanded, special test) selectable via the MODA/MODB pins. An on-chip oscillator with divide-by-256 option supports low-power standby.
Typical applications span automotive body controllers, HVAC actuators, industrial sensor concentrators, legacy industrial automation controllers, and field-replaceable instrumentation requiring an external program memory interface. Designers maintaining installed HC11 fleets will find this part functionally identical to the earlier MC68HC11F1-series devices. When porting older designs, designers should verify the MODA/MODB mode pins are strapped for expanded-multiplexed mode to enable the external memory bus, and confirm the E-clock rate does not exceed 5MHz at the chosen VDD.
Bộ thay thế dễ dàng lắp đặt cho MCHC11F1CFNE5 — 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 MCHC11F1CFNE5 (cùng hình factor và footprint) — khác nhau ở Program Memory Type, Operating Temperature, RAM Size.
MCHC11F1CFNE2
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MCHC11F1CFNE4R
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCHC11F1VFNE3
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68HC11F1CFNE2
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68HC11F1CFN4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MCHC11F1CFNE5 Tỷ lệ tối đa & tính chất điện
| Core Architecture | HC11 (M68HC11 family) |
| Bề rộng đường dữ liệu | 8-bit |
| Tần số xung maksimum | 5 MHz |
| Program Memory Type | ROMless (external memory required) |
| On-chip RAM | 1 KB |
| On-chip EEPROM | 512 bytes |
| Package Type | 68-LCC (J-Lead) |
| Package Outline | 24.21 x 24.21 mm |
| Số chân | 68 |
| Kiểu lắp đặt | Surface Mount |
| Điện áp cung cấp | 5 V (typical HC11 VDD) |
| On-chip Peripherals | SCI, SPI, Timer, PWM, 8-bit ADC |
Cấu hình chân MCHC11F1CFNE5
| Chân 1 | VSS — Ground |
| Chân 2 | MODB — Mode select B |
| Chân 3 | MODA — Mode select A |
| Chân 4 | AS — Address Strobe |
| Chân 5 | E — E-clock output |
| Chân 6 | R/W — Read/Write control |
| Chân 7 | PA7 — Port A bit 7 |
| Chân 8 | PA6 — Port A bit 6 |
| Chân 9 | PA5 — Port A bit 5 |
| Chân 10 | PA4 — Port A bit 4 |
| Chân 11 | PA3 — Port A bit 3 |
| Chân 12 | PA2 — Port A bit 2 |
| Chân 13 | PA1 — Port A bit 1 |
| Chân 14 | PA0 — Port A bit 0 |
| Chân 15 | VSS — Ground |
| Chân 16 | PC7 — Port C bit 7 (address/data bus) |
| Chân 17 | PC6 — Port C bit 6 (address/data bus) |
| Chân 18 | PC5 — Port C bit 5 (address/data bus) |
| Chân 19 | PC4 — Port C bit 4 (address/data bus) |
| Chân 20 | PC3 — Port C bit 3 (address/data bus) |
| Chân 21 | PC2 — Port C bit 2 (address/data bus) |
| Chân 22 | PC1 — Port C bit 1 (address/data bus) |
| Chân 23 | PC0 — Port C bit 0 (address/data bus) |
| Chân 24 | PD7 — Port D bit 7 |
| Chân 25 | PD6 — Port D bit 6 |
| Chân 26 | PD5 — Port D bit 5 |
| Chân 27 | PD4 — Port D bit 4 |
| Chân 28 | PD3 — Port D bit 3 |
| Chân 29 | PD2 — Port D bit 2 |
| Chân 30 | PD1 — Port D bit 1 (TxD) |
| Chân 31 | PD0 — Port D bit 0 (RxD) |
| Chân 32 | PE7 — Port E bit 7 / AN7 |
| Chân 33 | PE6 — Port E bit 6 / AN6 |
| Chân 34 | PE5 — Port E bit 5 / AN5 |
| Chân 35 | PE4 — Port E bit 4 / AN4 |
| Chân 36 | PE3 — Port E bit 3 / AN3 |
| Chân 37 | PE2 — Port E bit 2 / AN2 |
| Chân 38 | PE1 — Port E bit 1 / AN1 |
| Chân 39 | PE0 — Port E bit 0 / AN0 |
| Chân 40 | VRL — ADC reference low |
| Chân 41 | VRH — ADC reference high |
| Chân 42 | VSS — Ground (analog) |
| Chân 43 | VDDR — VDD for ADC reference |
| Chân 44 | VSS — Ground |
| Chân 45 | XIRQ — Non-maskable interrupt request |
| Chân 46 | IRQ — Maskable interrupt request |
| Chân 47 | RESET — Reset (active low) |
| Chân 48 | BKGD — Background Debug Mode |
| Chân 49 | SCK — SPI serial clock / Port C |
| Chân 50 | MOSI — SPI master-out / Port C |
| Chân 51 | MISO — SPI master-in / Port C |
| Chân 52 | SS — SPI slave select / Port C |
| Chân 53 | TxD — SCI transmit (alternate) |
| Chân 54 | RxD — SCI receive (alternate) |
| Chân 55 | OC1 — Output Compare 1 (PWM) |
| Chân 56 | OC2 — Output Compare 2 (PWM) |
| Chân 57 | OC3 — Output Compare 3 (PWM) |
| Chân 58 | IC1 — Input Capture 1 |
| Chân 59 | IC2 — Input Capture 2 |
| Chân 60 | IC3 — Input Capture 3 |
| Chân 61 | PA0-I/O — Port A bit (multi-use) |
| Chân 62 | PB7 — Port B bit 7 (address bus) |
| Chân 63 | PB6 — Port B bit 6 (address bus) |
| Chân 64 | PB5 — Port B bit 5 (address bus) |
| Chân 65 | PB4 — Port B bit 4 (address bus) |
| Chân 66 | PB3 — Port B bit 3 (address bus) |
| Chân 67 | PB2 — Port B bit 2 (address bus) |
| Chân 68 | VCC — Power supply (5V) |
Ứng dụng tiêu biểu
MCHC11F1CFNE5 phù hợp cho 6 Áp dụngs: Automotive Body Controllers, Industrial Sensor Concentrators, HVAC Actuator Controllers, Legacy Industrial Automation Controllers, Field-Replaceable Instrumentation, Consumer Appliance Controllers.
Automotive Body Controllers
The MCHC11F1CFNE5 is a fit for automotive body controllers because its 5MHz HC11 CPU provides deterministic interrupt response for body-electronics tasks like mirror control, seat positioning, and lighting sequencing. With 1KB of on-chip RAM it handles state machines and stack frames for small control loops; the 512-byte EEPROM stores calibration and learned-position data that must survive battery disconnect. The ROMless memory map lets tier-1 suppliers keep proprietary firmware confidential by sourcing the algorithm in external EPROM/flash. The 8-bit ADC reads thermistor or switch-sense inputs, while the SCI/SPI peripherals multiplex to actuators and to a body control module bus. A rugged 68-PLCC J-Lead package withstands automotive underhood and underbody thermal cycling versus fine-pitch QFN rivals.
Được đề xuất
Industrial Sensor Concentrators
For industrial sensor concentrators that aggregate analog inputs and forward them to a higher-level PLC, the MCHC11F1CFNE5's 8-channel 8-bit ADC and SCI bus eliminate external ADC chips and a UART. The 5MHz bus clock is fast enough to scan 8 channels with sub-millisecond update rates, and the 16-bit timer with pulse accumulator handles flow-meter or tachometer inputs. The ROMless arrangement means the firmware IP sits in a masked external flash that can be replaced without touching the HC11 silicon - attractive for long-lived industrial product lines that face regulatory retesting. The HC11's expanded-multiplexed mode allows external SRAM for protocol stacks, while the 68-PLCC package offers a socketed option that simplifies field service.
Được đề xuất
HVAC Actuator Controllers
HVAC damper and valve actuator controllers rely on the MCHC11F1CFNE5's PWM channels to drive brushless or stepper motor drivers directly, plus its 8-bit ADC to read thermistor feedback on supply and return air streams. The 512-byte EEPROM stores commissioning parameters such as calibrated stroke length and zero-offset after the installer runs auto-setup. The ROMless design lets OEMs swap external flash for field firmware updates over the SCI bus using a service tool - critical for HVAC service contracts spanning 20+ year equipment lifetimes. With 5MHz of headroom the HC11 also computes PID loops at 100Hz without an external math coprocessor, while the 68-PLCC J-Lead form factor drops directly into legacy Johnson Controls, Honeywell, and Carrier actuator boards.
Được đề xuất
Legacy Industrial Automation Controllers
Plants still operating Allen-Bradley PLC-2, Modicon 184/384, and Siemens S5 installations frequently need replacement HC11-based daughter cards, and the MCHC11F1CFNE5 keeps those lines alive with current lead times. Its extended-mode HC11 memory map matches older PLC CPU boards pin-for-pin, while the ROMless interface supports external firmware chips that mimic the legacy instruction sets. The 1KB of on-chip RAM, 512-byte EEPROM, SCI/SPI peripherals, 8-bit ADC, and timer/PWM blocks map almost one-to-one onto the I/O scan table of mid-1990s PLCs. The 68-PLCC J-Lead package also permits socketed field replacement, a service-friendly feature that QFN-package successors cannot match for backwards compat.
Được đề xuất
Field-Replaceable Instrumentation
Test instruments, chart recorders, and laboratory data loggers specified in the late 1990s still rely on MCHC11F1-series controllers because their serial EEPROM calibration segments are tied to the M68HC11 architecture. The MCHC11F1CFNE5 fits these designs because its 512-byte on-chip EEPROM replaces a separate I2C EEPROM for calibration constants, while the ROMless memory map lets the OEM upgrade firmware by swapping the external flash chip. The 5MHz bus clock drives the instrument's display multiplexor, keypad scan, and SCI host port without stalls, and the 68-PLCC J-Lead package suits legacy through-hole test sockets used in calibration fixturing. Designers porting older firmware can re-use assembly routines and compiler switches unchanged.
Được đề xuất
Consumer Appliance Controllers
Washers, dryers, dishwashers, and microwave ovens often hide an M68HC11 controller inside, and the MCHC11F1CFNE5 drops directly onto the appliance's existing 68-PLCC footprint as a service part. With 1KB of on-chip RAM and 512 bytes of EEPROM it stores wash-cycle, sensor trim, and customer-preference parameters that survive power loss. Its PWM and timer peripherals drive motor-control relays, triac triggers, and buzzer outputs without glue logic; the 8-bit ADC reads temperature and water-level sensors directly. The ROMless architecture lets OEM engineers iterate on firmware via the BDM interface during development, then freeze code in external flash for production, and the part's long-life NXP lifecycle commitment keeps consumer appliances repairable for decades.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MCHC11F1CFNE5 — 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 | MCHC11F1CFNE2 | MCHC11F1CFNE4R | MCHC11F1VFNE3 | MC68HC11F1CFNE2 | MC68HC11F1CFN |
|---|---|---|---|---|---|---|
| Package | 68-LCC (J-Lead, 24.21x24.21 mm) | 68-LCC (J-Lead) - same | 68-LCC (J-Lead) - same | 68-LCC (J-Lead) - same | 68-LCC (J-Lead) - same | 68-LCC (J-Lead) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors (Freescale legacy) | NXP Semiconductors (Freescale legacy) |
| Core | HC11 | HC11 | HC11 | HC11 | HC11 (E1 memory map) | HC11 |
| Maximum Clock Frequency | 5 MHz | 5 MHz | 5 MHz | 5 MHz | 5 MHz | 5 MHz |
| Program Memory Type | ROMless | ROMless | ROMless | ROMless | ROMless | ROMless |
| Suffix / Temperature Grade | FN-suffix (-5) | FN-suffix (-2) | FN-suffix (-4R tape & reel) | FN-suffix (-3) | FN-suffix (-2, E1) | FN-suffix (legacy) |
Bảo phân biệt quan trọng
- ROMless memory map for OEM firmware flexibility (vsMC68HC11F1CFNE2)
- Background Debug Mode (BDM) standard (vsMCHC11F1CFNE4R)
- Full 8-bit ADC with 8 channels + on-chip reference (vsMCHC11F1VFNE3)
Ghi chú thiết kế
Estimated: at 5MHz CPU clock and full peripheral activity, the MCHC11F1CFNE5 typically draws 30-50mA from a 5V supply. Decouple VCC with a 0.1uF ceramic placed within 5mm of the VCC pin and pair it with a 10uF tantalum or aluminum polymer bulk cap on the same rail. The VDDR/VRH pins feed the ADC reference regulator — keep their decoupling isolated from noisy digital returns and use a star-ground topology to avoid ADC reference drift.
On the HC11, MODA and MODB select single-chip, expanded, bootstrap, and special-test operating modes — strapping them incorrectly produces 'blank' boards where the external bus is disabled or the device enters test mode. Tie MODA high through 4.7kΩ to select expanded-multiplexed mode, MODB low through 4.7kΩ, and add test-point access for factory debug. Also: ensure the E-clock rise time under 20ns, and that any external SRAM chips on the bus are matched to 1-cycle wait state to avoid bus contention on the HC11's multiplexed address/data lines.
Route the 68-PLCC's multiplexed bus (PORTC and PORTB) on the inner layers of a 4-layer board with a continuous ground plane beneath. Keep E-clock, AS, and R/W traces short and length-matched to the 8-bit bus within ±2mm so that setup/hold times on the external SRAM/EPROM remain within the 5MHz budget. Separate analog ground (VSSA at pin 42) from digital ground at the regulator, and chassis-mount the 68-PLCC socket if the appliance expects vibration tolerance beyond consumer-grade.
Thông tin tuân thủ
Compliance data not exposed in the verified web data; set to unknown per data-authenticity rule
