MCHC11F1CFNE5 - 8-Bit HC11 MCU 5MHz ROMless 68-PLCC | NXP
Référence : MCHC11F1CFNE5 ✓ Actif| Qté | Prix unitaire | 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 Présentation
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.
Alternatives de remplacement direct pour MCHC11F1CFNE5 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MCHC11F1CFNE5 (même facteur de forme et même empreinte) — différant par Program Memory Type, Operating Temperature, RAM Size.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MCHC11F1CFNE2
✅ Remplacement direct✓ En stock
$119.8 / unité
Voir la fiche technique →MCHC11F1CFNE4R
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MCHC11F1VFNE3
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68HC11F1CFNE2
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68HC11F1CFN4
✅ Remplacement direct✓ En stock
$17.85 / unité
Voir la fiche technique →MCHC11F1CFNE5 Valeurs maximales et caractéristiques électriques
| Core Architecture | HC11 (M68HC11 family) |
| Largeur du bus de données | 8-bit |
| Fréquence d'horloge maximale | 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 |
| Nombre de broches | 68 |
| Type de montage | Surface Mount |
| Tension d'alimentation | 5 V (typical HC11 VDD) |
| On-chip Peripherals | SCI, SPI, Timer, PWM, 8-bit ADC |
Configuration des broches de MCHC11F1CFNE5
| Broche 1 | VSS — Ground |
| Broche 2 | MODB — Mode select B |
| Broche 3 | MODA — Mode select A |
| Broche 4 | AS — Address Strobe |
| Broche 5 | E — E-clock output |
| Broche 6 | R/W — Read/Write control |
| Broche 7 | PA7 — Port A bit 7 |
| Broche 8 | PA6 — Port A bit 6 |
| Broche 9 | PA5 — Port A bit 5 |
| Broche 10 | PA4 — Port A bit 4 |
| Broche 11 | PA3 — Port A bit 3 |
| Broche 12 | PA2 — Port A bit 2 |
| Broche 13 | PA1 — Port A bit 1 |
| Broche 14 | PA0 — Port A bit 0 |
| Broche 15 | VSS — Ground |
| Broche 16 | PC7 — Port C bit 7 (address/data bus) |
| Broche 17 | PC6 — Port C bit 6 (address/data bus) |
| Broche 18 | PC5 — Port C bit 5 (address/data bus) |
| Broche 19 | PC4 — Port C bit 4 (address/data bus) |
| Broche 20 | PC3 — Port C bit 3 (address/data bus) |
| Broche 21 | PC2 — Port C bit 2 (address/data bus) |
| Broche 22 | PC1 — Port C bit 1 (address/data bus) |
| Broche 23 | PC0 — Port C bit 0 (address/data bus) |
| Broche 24 | PD7 — Port D bit 7 |
| Broche 25 | PD6 — Port D bit 6 |
| Broche 26 | PD5 — Port D bit 5 |
| Broche 27 | PD4 — Port D bit 4 |
| Broche 28 | PD3 — Port D bit 3 |
| Broche 29 | PD2 — Port D bit 2 |
| Broche 30 | PD1 — Port D bit 1 (TxD) |
| Broche 31 | PD0 — Port D bit 0 (RxD) |
| Broche 32 | PE7 — Port E bit 7 / AN7 |
| Broche 33 | PE6 — Port E bit 6 / AN6 |
| Broche 34 | PE5 — Port E bit 5 / AN5 |
| Broche 35 | PE4 — Port E bit 4 / AN4 |
| Broche 36 | PE3 — Port E bit 3 / AN3 |
| Broche 37 | PE2 — Port E bit 2 / AN2 |
| Broche 38 | PE1 — Port E bit 1 / AN1 |
| Broche 39 | PE0 — Port E bit 0 / AN0 |
| Broche 40 | VRL — ADC reference low |
| Broche 41 | VRH — ADC reference high |
| Broche 42 | VSS — Ground (analog) |
| Broche 43 | VDDR — VDD for ADC reference |
| Broche 44 | VSS — Ground |
| Broche 45 | XIRQ — Non-maskable interrupt request |
| Broche 46 | IRQ — Maskable interrupt request |
| Broche 47 | RESET — Reset (active low) |
| Broche 48 | BKGD — Background Debug Mode |
| Broche 49 | SCK — SPI serial clock / Port C |
| Broche 50 | MOSI — SPI master-out / Port C |
| Broche 51 | MISO — SPI master-in / Port C |
| Broche 52 | SS — SPI slave select / Port C |
| Broche 53 | TxD — SCI transmit (alternate) |
| Broche 54 | RxD — SCI receive (alternate) |
| Broche 55 | OC1 — Output Compare 1 (PWM) |
| Broche 56 | OC2 — Output Compare 2 (PWM) |
| Broche 57 | OC3 — Output Compare 3 (PWM) |
| Broche 58 | IC1 — Input Capture 1 |
| Broche 59 | IC2 — Input Capture 2 |
| Broche 60 | IC3 — Input Capture 3 |
| Broche 61 | PA0-I/O — Port A bit (multi-use) |
| Broche 62 | PB7 — Port B bit 7 (address bus) |
| Broche 63 | PB6 — Port B bit 6 (address bus) |
| Broche 64 | PB5 — Port B bit 5 (address bus) |
| Broche 65 | PB4 — Port B bit 4 (address bus) |
| Broche 66 | PB3 — Port B bit 3 (address bus) |
| Broche 67 | PB2 — Port B bit 2 (address bus) |
| Broche 68 | VCC — Power supply (5V) |
Applications typiques
MCHC11F1CFNE5 convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MCHC11F1CFNE5 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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) |
Principaux différenciateurs
- ROMless memory map for OEM firmware flexibility (vs MC68HC11F1CFNE2)
- Background Debug Mode (BDM) standard (vs MCHC11F1CFNE4R)
- Full 8-bit ADC with 8 channels + on-chip reference (vs MCHC11F1VFNE3)
Notes de conception
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.
Informations de conformité
Compliance data not exposed in the verified web data; set to unknown per data-authenticity rule
