MCHC11F1CFNE5 - 8-Bit HC11 MCU 5MHz ROMless 68-PLCC | NXP
N.º de pieza: MCHC11F1CFNE5 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 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 Descripción general
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.
Alternativas directas para MCHC11F1CFNE5 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MCHC11F1CFNE5 (mismo factor de forma y huella) — difiere en Program Memory Type, Operating Temperature, RAM Size.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MCHC11F1CFNE2
✅ Sustitución directa✓ En stock
$119.8 / unidad
Ver hoja de datos →MCHC11F1CFNE4R
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MCHC11F1VFNE3
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC68HC11F1CFNE2
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC68HC11F1CFN4
✅ Sustitución directa✓ En stock
$17.85 / unidad
Ver hoja de datos →MCHC11F1CFNE5 Valores máximos y características eléctricas
| Core Architecture | HC11 (M68HC11 family) |
| Ancho del bus de datos | 8-bit |
| Frecuencia de reloj máxima | 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 |
| Recuento de pines | 68 |
| Tipo de montaje | Surface Mount |
| Tensión de alimentación | 5 V (typical HC11 VDD) |
| On-chip Peripherals | SCI, SPI, Timer, PWM, 8-bit ADC |
Configuración de pines de MCHC11F1CFNE5
| Pin 1 | VSS — Ground |
| Pin 2 | MODB — Mode select B |
| Pin 3 | MODA — Mode select A |
| Pin 4 | AS — Address Strobe |
| Pin 5 | E — E-clock output |
| Pin 6 | R/W — Read/Write control |
| Pin 7 | PA7 — Port A bit 7 |
| Pin 8 | PA6 — Port A bit 6 |
| Pin 9 | PA5 — Port A bit 5 |
| Pin 10 | PA4 — Port A bit 4 |
| Pin 11 | PA3 — Port A bit 3 |
| Pin 12 | PA2 — Port A bit 2 |
| Pin 13 | PA1 — Port A bit 1 |
| Pin 14 | PA0 — Port A bit 0 |
| Pin 15 | VSS — Ground |
| Pin 16 | PC7 — Port C bit 7 (address/data bus) |
| Pin 17 | PC6 — Port C bit 6 (address/data bus) |
| Pin 18 | PC5 — Port C bit 5 (address/data bus) |
| Pin 19 | PC4 — Port C bit 4 (address/data bus) |
| Pin 20 | PC3 — Port C bit 3 (address/data bus) |
| Pin 21 | PC2 — Port C bit 2 (address/data bus) |
| Pin 22 | PC1 — Port C bit 1 (address/data bus) |
| Pin 23 | PC0 — Port C bit 0 (address/data bus) |
| Pin 24 | PD7 — Port D bit 7 |
| Pin 25 | PD6 — Port D bit 6 |
| Pin 26 | PD5 — Port D bit 5 |
| Pin 27 | PD4 — Port D bit 4 |
| Pin 28 | PD3 — Port D bit 3 |
| Pin 29 | PD2 — Port D bit 2 |
| Pin 30 | PD1 — Port D bit 1 (TxD) |
| Pin 31 | PD0 — Port D bit 0 (RxD) |
| Pin 32 | PE7 — Port E bit 7 / AN7 |
| Pin 33 | PE6 — Port E bit 6 / AN6 |
| Pin 34 | PE5 — Port E bit 5 / AN5 |
| Pin 35 | PE4 — Port E bit 4 / AN4 |
| Pin 36 | PE3 — Port E bit 3 / AN3 |
| Pin 37 | PE2 — Port E bit 2 / AN2 |
| Pin 38 | PE1 — Port E bit 1 / AN1 |
| Pin 39 | PE0 — Port E bit 0 / AN0 |
| Pin 40 | VRL — ADC reference low |
| Pin 41 | VRH — ADC reference high |
| Pin 42 | VSS — Ground (analog) |
| Pin 43 | VDDR — VDD for ADC reference |
| Pin 44 | VSS — Ground |
| Pin 45 | XIRQ — Non-maskable interrupt request |
| Pin 46 | IRQ — Maskable interrupt request |
| Pin 47 | RESET — Reset (active low) |
| Pin 48 | BKGD — Background Debug Mode |
| Pin 49 | SCK — SPI serial clock / Port C |
| Pin 50 | MOSI — SPI master-out / Port C |
| Pin 51 | MISO — SPI master-in / Port C |
| Pin 52 | SS — SPI slave select / Port C |
| Pin 53 | TxD — SCI transmit (alternate) |
| Pin 54 | RxD — SCI receive (alternate) |
| Pin 55 | OC1 — Output Compare 1 (PWM) |
| Pin 56 | OC2 — Output Compare 2 (PWM) |
| Pin 57 | OC3 — Output Compare 3 (PWM) |
| Pin 58 | IC1 — Input Capture 1 |
| Pin 59 | IC2 — Input Capture 2 |
| Pin 60 | IC3 — Input Capture 3 |
| Pin 61 | PA0-I/O — Port A bit (multi-use) |
| Pin 62 | PB7 — Port B bit 7 (address bus) |
| Pin 63 | PB6 — Port B bit 6 (address bus) |
| Pin 64 | PB5 — Port B bit 5 (address bus) |
| Pin 65 | PB4 — Port B bit 4 (address bus) |
| Pin 66 | PB3 — Port B bit 3 (address bus) |
| Pin 67 | PB2 — Port B bit 2 (address bus) |
| Pin 68 | VCC — Power supply (5V) |
Aplicaciones típicas
MCHC11F1CFNE5 es adecuado para 6 aplicacións: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MCHC11F1CFNE5 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | 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) |
Diferenciadores clave
- ROMless memory map for OEM firmware flexibility (frente a MC68HC11F1CFNE2)
- Background Debug Mode (BDM) standard (frente a MCHC11F1CFNE4R)
- Full 8-bit ADC with 8 channels + on-chip reference (frente a MCHC11F1VFNE3)
Notas de diseño
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.
Información de cumplimiento
Compliance data not exposed in the verified web data; set to unknown per data-authenticity rule
