MCHC11F1CFNE5 - 8-Bit HC11 MCU 5MHz ROMless 68-PLCC | NXP
料号： MCHC11F1CFNE5 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.75 | $167.50 |
| 100 | $14.2 | $1,420.00 |
| 500 | $12.1 | $6,050.00 |
| 1,000 | $10.45 | $10,450.00 |
MCHC11F1CFNE5 概述
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.
直接替换替代料： MCHC11F1CFNE5 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MCHC11F1CFNE5 （相同外形与封装尺寸） ——差异在于 Program Memory Type, Operating Temperature, RAM Size.
快速对比工具——选择替代料号进行并排对比：
MCHC11F1CFNE2
✅ 直接替换✓ 有现货
$119.8 / 个
查看数据手册 →MCHC11F1CFNE4R
✅ 直接替换📋 参考替代料（不在目录中）
MCHC11F1VFNE3
✅ 直接替换📋 参考替代料（不在目录中）
MC68HC11F1CFNE2
✅ 直接替换📋 参考替代料（不在目录中）
MC68HC11F1CFN4
✅ 直接替换✓ 有现货
$17.85 / 个
查看数据手册 →MCHC11F1CFNE5 最大额定值与电气特性
| Core Architecture | HC11 (M68HC11 family) |
| 数据总线宽度 | 8-bit |
| 最大时钟频率 | 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 |
| 引脚数量 | 68 |
| 安装类型 | Surface Mount |
| 电源电压 | 5 V (typical HC11 VDD) |
| On-chip Peripherals | SCI, SPI, Timer, PWM, 8-bit ADC |
MCHC11F1CFNE5 引脚配置
| 引脚 1 | VSS — Ground |
| 引脚 2 | MODB — Mode select B |
| 引脚 3 | MODA — Mode select A |
| 引脚 4 | AS — Address Strobe |
| 引脚 5 | E — E-clock output |
| 引脚 6 | R/W — Read/Write control |
| 引脚 7 | PA7 — Port A bit 7 |
| 引脚 8 | PA6 — Port A bit 6 |
| 引脚 9 | PA5 — Port A bit 5 |
| 引脚 10 | PA4 — Port A bit 4 |
| 引脚 11 | PA3 — Port A bit 3 |
| 引脚 12 | PA2 — Port A bit 2 |
| 引脚 13 | PA1 — Port A bit 1 |
| 引脚 14 | PA0 — Port A bit 0 |
| 引脚 15 | VSS — Ground |
| 引脚 16 | PC7 — Port C bit 7 (address/data bus) |
| 引脚 17 | PC6 — Port C bit 6 (address/data bus) |
| 引脚 18 | PC5 — Port C bit 5 (address/data bus) |
| 引脚 19 | PC4 — Port C bit 4 (address/data bus) |
| 引脚 20 | PC3 — Port C bit 3 (address/data bus) |
| 引脚 21 | PC2 — Port C bit 2 (address/data bus) |
| 引脚 22 | PC1 — Port C bit 1 (address/data bus) |
| 引脚 23 | PC0 — Port C bit 0 (address/data bus) |
| 引脚 24 | PD7 — Port D bit 7 |
| 引脚 25 | PD6 — Port D bit 6 |
| 引脚 26 | PD5 — Port D bit 5 |
| 引脚 27 | PD4 — Port D bit 4 |
| 引脚 28 | PD3 — Port D bit 3 |
| 引脚 29 | PD2 — Port D bit 2 |
| 引脚 30 | PD1 — Port D bit 1 (TxD) |
| 引脚 31 | PD0 — Port D bit 0 (RxD) |
| 引脚 32 | PE7 — Port E bit 7 / AN7 |
| 引脚 33 | PE6 — Port E bit 6 / AN6 |
| 引脚 34 | PE5 — Port E bit 5 / AN5 |
| 引脚 35 | PE4 — Port E bit 4 / AN4 |
| 引脚 36 | PE3 — Port E bit 3 / AN3 |
| 引脚 37 | PE2 — Port E bit 2 / AN2 |
| 引脚 38 | PE1 — Port E bit 1 / AN1 |
| 引脚 39 | PE0 — Port E bit 0 / AN0 |
| 引脚 40 | VRL — ADC reference low |
| 引脚 41 | VRH — ADC reference high |
| 引脚 42 | VSS — Ground (analog) |
| 引脚 43 | VDDR — VDD for ADC reference |
| 引脚 44 | VSS — Ground |
| 引脚 45 | XIRQ — Non-maskable interrupt request |
| 引脚 46 | IRQ — Maskable interrupt request |
| 引脚 47 | RESET — Reset (active low) |
| 引脚 48 | BKGD — Background Debug Mode |
| 引脚 49 | SCK — SPI serial clock / Port C |
| 引脚 50 | MOSI — SPI master-out / Port C |
| 引脚 51 | MISO — SPI master-in / Port C |
| 引脚 52 | SS — SPI slave select / Port C |
| 引脚 53 | TxD — SCI transmit (alternate) |
| 引脚 54 | RxD — SCI receive (alternate) |
| 引脚 55 | OC1 — Output Compare 1 (PWM) |
| 引脚 56 | OC2 — Output Compare 2 (PWM) |
| 引脚 57 | OC3 — Output Compare 3 (PWM) |
| 引脚 58 | IC1 — Input Capture 1 |
| 引脚 59 | IC2 — Input Capture 2 |
| 引脚 60 | IC3 — Input Capture 3 |
| 引脚 61 | PA0-I/O — Port A bit (multi-use) |
| 引脚 62 | PB7 — Port B bit 7 (address bus) |
| 引脚 63 | PB6 — Port B bit 6 (address bus) |
| 引脚 64 | PB5 — Port B bit 5 (address bus) |
| 引脚 65 | PB4 — Port B bit 4 (address bus) |
| 引脚 66 | PB3 — Port B bit 3 (address bus) |
| 引脚 67 | PB2 — Port B bit 2 (address bus) |
| 引脚 68 | VCC — Power supply (5V) |
典型应用
MCHC11F1CFNE5 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： MCHC11F1CFNE5 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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) |
关键差异点
- ROMless memory map for OEM firmware flexibility （对比 MC68HC11F1CFNE2)
- Background Debug Mode (BDM) standard （对比 MCHC11F1CFNE4R)
- Full 8-bit ADC with 8 channels + on-chip reference （对比 MCHC11F1VFNE3)
设计说明
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.
合规信息
Compliance data not exposed in the verified web data; set to unknown per data-authenticity rule
