MCHC908JK1ECPE - HC08 8-Bit MCU 1.5KB Flash 8MHz 20-DIP | NXP
N.º de pieza: MCHC908JK1ECPE ✗ Fin de vida| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $9.95 | $9,95 |
| 10 | $8.75 | $87,50 |
| 100 | $7.3 | $730,00 |
| 500 | $6.5 | $3.250,00 |
| 1.000 | $5.95 | $5.950,00 |
MCHC908JK1ECPE Descripción general
What is an 8-bit microcontroller? An 8-bit microcontroller is a small computer-on-a-chip built around an 8-bit data bus central processing unit (CPU). In the broader product taxonomy, the MCHC908JK1ECPE is a microcontroller (MCU) -> embedded microcontroller -> 8-bit MCU -> HC08-family MCU -> flash-based MCU. The HC08 family implements a CISC-style CPU08 instruction set and includes on-chip peripherals such as timers, ADC, and serial interfaces, targeting cost-sensitive industrial and consumer embedded designs.
Key features of the MCHC908JK1ECPE include 1.5 KB of in-application-programmable Flash memory, 128 bytes of RAM, an integrated ADC, multiple timers, and a keyboard interrupt module. The device supports 3.0 V to 5.5 V operation (typical 3.3 V / 5 V dual-supply designs), an internal bus frequency up to 8 MHz, and is offered in the 20-pin PDIP package that simplifies prototyping and breadboard integration for development and low-volume production.
Architecturally, the HC08 core is a CISC CPU with a 16-bit addressing space (64 KB), and the JK/JL variants are the lower-pin-count members of the family. The 1.5 KB Flash provides enough memory for typical small control loops, sensor conditioning routines, and user-interface glue logic. The on-chip ADC, timers, and keyboard interrupts reduce external component count and BOM cost.
Typical applications include low-cost white goods and small appliance controllers (washing machines, microwave ovens), automotive body electronics (window lifters, simple body controllers), industrial sensor signal conditioning and front-end processing, remote controls and user-interface panels, security-system keypads and PIR-sensor interfaces, and battery-powered smart sensors. The 20-pin PDIP form factor is favored for through-hole assembly and easy rework.
Design consideration: because the M68HC08 family is mature and approaching end-of-life on the original NXP roadmap, designers should evaluate modern migration options such as Freescale/NXP S08 low-end families, Microchip PIC16/PIC18 with similar peripherals, or ARM Cortex-M0+ MCUs (e.g., SAMD20, EFM32) when long-term supply is critical. For existing designs and legacy maintenance, however, the MCHC908JK1ECPE remains a well-documented and supported option.
This page synthesizes distributor pricing, available pin-compatible alternatives from the same 20-pin PDIP footprint, and practical design notes not typically found in the manufacturer datasheet.
Alternativas directas para MCHC908JK1ECPE — 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 MCHC908JK1ECPE (mismo factor de forma y huella) — difiere en Data Bus Width, Operating Temperature Range, Program Memory Size, Supply Voltage Range.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MCHC908JK3ECPE
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$3.65 / unidad
Ver hoja de datos →MCHC908JL3ECPE
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
MCHC908JK1CPE
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
MCHC908JK1EMPE
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
MCHC908JK1ECPE Valores máximos y características eléctricas
| Core | HC08 (CPU08) |
| Ancho del bus de datos | 8 bit |
| Program Memory Size | 1.5 KB Flash (1.5K x 8) |
| RAM Size | 128 bytes |
| Frecuencia de reloj máxima | 8 MHz (internal bus) |
| Supply Voltage Range | 3.0 V to 5.5 V (3.3 V / 5 V) |
| ADC | Integrated multi-channel ADC |
| Number of I/O Pins | 15 (approx.) |
| Timers | Multiple 16-bit (TIM) channels |
| Encapsulado | 20-DIP (PDIP-20) through-hole |
| Package Code | DIP / PDIP |
| Tipo de montaje | Through-Hole |
| Rango de temperatura de funcionamiento | -40C to +85C (industrial) |
| Instruction Set | CISC (HC08) |
Configuración de pines de MCHC908JK1ECPE
| Pin 1 | IRQ — External interrupt request input |
| Pin 2 | OSC1 — Crystal/oscillator input or external clock |
| Pin 3 | OSC2 — Crystal/oscillator output |
| Pin 4 | RST — Reset input (active low) |
| Pin 5 | VSS — Ground reference |
| Pin 6 | PTA0 — Port A bit 0 / ADC channel / TCH channel |
| Pin 7 | PTA1 — Port A bit 1 / ADC channel / TCH channel |
| Pin 8 | PTA2 — Port A bit 2 / ADC channel / TCH channel |
| Pin 9 | PTA3 — Port A bit 3 / ADC channel / TCH channel |
| Pin 10 | PTA4 — Port A bit 4 / ADC channel / TCH channel |
| Pin 11 | PTA5 — Port A bit 5 / ADC channel / TCH channel |
| Pin 12 | PTA6 — Port A bit 6 / ADC channel / TCH channel |
| Pin 13 | PTA7 — Port A bit 7 / ADC channel / TCH channel |
| Pin 14 | PTB0 — Port B bit 0 / KBIE0 |
| Pin 15 | PTB1 — Port B bit 1 / KBIE1 |
| Pin 16 | PTB2 — Port B bit 2 / KBIE2 |
| Pin 17 | PTB3 — Port B bit 3 / KBIE3 |
| Pin 18 | PTB4 — Port B bit 4 |
| Pin 19 | PTB5 — Port B bit 5 |
| Pin 20 | VDD — Positive supply voltage |
Aplicaciones típicas
MCHC908JK1ECPE es adecuado para 6 aplicacións: White-Goods / Small Appliance Controllers, Automotive Body Electronics, Industrial Sensor Signal Conditioning, Remote Control / User-Interface Panels, Security System Keypads and PIR Sensors, Battery-Powered Smart Sensors.
White-Goods / Small Appliance Controllers
The MCHC908JK1ECPE fits well in cost-sensitive white-goods controllers such as microwave ovens, washing-machine user-interface panels, and dishwasher controls. Its 1.5 KB Flash is enough for relay sequencing, timer/counter algorithms, and a seven-segment or LED drive UI, while the 128 B RAM holds key debounce and mode state. The integrated ADC allows sensing of analog signals like water level probes, temperature sensors, or humidity sensors without an external analog-front-end. The 20-pin PDIP through-hole package survives high-temperature wave-solder reflow at appliance manufacturing lines, where SMD-only parts are sometimes avoided. The HC08 CISC ISA also enables short interrupt latency for safety-critical door-lock and over-temperature interlocks; the device provides up to 8 MHz bus frequency, sufficient for typical 1 ms control loops.
Recomendado
Automotive Body Electronics
In legacy automotive body applications such as window lifters, mirror actuators, or simple central-locking controllers, the MCHC908JK1ECPE serves as a low-cost HC08 slave controller. Its 8-bit core and 8 MHz bus can handle PWM generation for motor control, ADC sampling for current sensing, and CAN-less LIN-like UART communication via the integrated SCI. The 20-DIP through-hole package is rugged enough for vibration-heavy under-dash and door-module environments, where SMD joints are more failure-prone. The 128 B RAM is sufficient for short bursts of LIN/UART frame buffering, and 1.5 KB Flash allows integration of small diagnostic routines. For new designs, AEC-Q100-qualified variants are required - this specific part is industrial-grade; AEC-Q100 support must be verified separately against the NXP automotive-grade catalog.
Recomendado
Industrial Sensor Signal Conditioning
The MCHC908JK1ECPE is suited to compact industrial sensor-front-end boards where 8-bit processing and ADC front-ends are needed for transducer read-out. Its integrated multi-channel ADC digitizes analog signals from thermocouples, RTDs, strain gauges, or 4-20 mA current loops, while the 128 B RAM holds basic calibration coefficients. Engineers place the MCU between the analog front-end and an isolated serial link; the 8 MHz bus processes linearization routines and digital-filtering in real time. The 20-DIP through-hole package facilitates robust industrial backplanes and conformal-coated assemblies. Designers also benefit from the HC08 family toolchain, including CodeWarrior HC(S)08 IDE, simplifying firmware development for sensor-controller platforms.
Recomendado
Remote Control / User-Interface Panels
Handheld remote controls and small user-interface panels benefit from the MCHC908JK1ECPE's small Flash footprint, integrated keypad-interrupt module, and through-hole DIP package. The 1.5 KB Flash fits typical IR-protocol state machines (RC5, NEC, SIRC), and 128 B RAM buffers transmit frames and debounce state. The HC08 keyboard-interrupt capability allows low-power wake-on-key events without external interrupt controllers. The 20-DIP package suits prototyping and is also used in higher-reliability panels where through-hole retains robustness. The device typically operates from 3 V cells, where the wide 3.0 V to 5.5 V supply range simplifies single-supply implementation and reduces BOM cost in mass-market remote designs.
Recomendado
Security System Keypads and PIR Sensors
Security-system keypads and PIR sensor modules rely on the MCHC908JK1ECPE for simple event handling, debouncing, and decision logic. The 8-bit HC08 core is fully adequate for driving 4x4 matrix keypads with the integrated keyboard-wake module and on-chip timers - critical to minimize quiescent current in battery-backed installations. The integrated ADC digitizes PIR-sensor analog signals, and 128 B RAM is enough for alarm-state buffering. The 20-DIP package is preferred for retrofit through-hole installations on legacy alarm boards. Migration to SMD or modern Cortex-M0+ is recommended for new builds where ALF/RoHS compliance and long-term parts availability outweigh the BOM-savings argument.
Recomendado
Battery-Powered Smart Sensors
For battery-powered smart sensors in industrial IoT and metering, the MCHC908JK1ECPE offers a low-cost 8-bit MCU in a through-hole 20-DIP package, suitable for retrofit and industrial-housing assembly. With its 3.0 V to 5.5 V supply, the device can be powered directly from 3 V lithium cells or regulated rails; the integrated ADC reads sensor outputs (temperature, pressure, or flow) and the 1.5 KB Flash houses sensor-fusion and calibration routines. When teamed with an external low-power wireless transceiver (e.g., a sub-GHz or Bluetooth low-energy modem), the MCU becomes a sensor-node controller. For very low standby power, designers typically gate the radio supply via a load switch; HC08 STOP/WAIT modes keep idle draw in the microampere range, sufficient for multi-year battery life in metering scenarios.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MCHC908JK1ECPE — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MCHC908JK3ECPE | MCHC908JL3ECPE | MCHC908JK1CPE |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 20-DIP (PDIP-20) | 20-DIP (PDIP-20) - same | 20-DIP (PDIP-20) - same | 20-DIP (PDIP-20) - same |
| Program Memory (Flash) | 1.5 KB | 4 KB (+167%) | 4 KB (+167%) | 1.5 KB (same) |
| RAM Size | 128 bytes | 128 bytes (same) | 128 bytes (same) | 128 bytes (same) |
| Maximum Bus Clock | 8 MHz | 8 MHz (same) | 8 MHz (same) | 8 MHz (same) |
| Operating Temperature Grade | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Commercial (0C to +70C) |
| Peripheral Focus | ADC + KBIE (keyboard interrupt) | ADC + KBIE | LCD driver + KBIE | ADC + KBIE (same die) |
| Lifecycle Status | Obsolete (No Longer Manufactured) | Obsolete / NRND | NRND | NRND |
Diferenciadores clave
- Smallest 20-DIP HC08 footprint with 1.5 KB Flash (frente a MCHC908JK3ECPE)
- Industrial temperature range (-40C to +85C) (frente a MCHC908JK1CPE)
- Integrated ADC + KBIE on 20 pins (frente a MCHC908JL3ECPE)
Notas de diseño
The MCHC908JK1ECPE operates over 3.0 V to 5.5 V. Place a 100 nF decoupling capacitor directly between VDD (pin 20) and VSS (pin 5) plus a 10 uF bulk capacitor on the board. For battery-powered designs, leverage HC08 STOP/WAIT low-power modes to achieve microamp-level standby. Estimated: at VDD = 3.3 V and 8 MHz internal bus, active current is on the order of a few milliamps; STOP current is sub-milliampere per the family datasheet; verify on the final PCB before locking the battery budget.
Keep oscillator traces (OSC1/OSC2) short and guard both with a ground ring to minimize jitter. Route analog ADC inputs away from switching traces to avoid crosstalk into the integrated ADC - if applying an external resistor divider for sensor conditioning, place the divider close to the ADC pin and add a small RC filter to suppress transient pickup. Typical JTAG/background-debug pins should also be guarded if unused, to avoid inadvertent resets during EMI events.
Do not assume supply-side tolerance beyond 5.5 V even with the wide input range; overshoot during hot-plug can latch the MCU. The 20-DIP PDIP package is not reflow-solder compatible (intended for wave-solder and through-hole assembly) - surface-mount migration requires switching to a TSSOP/SOIC variant. When migrating HC08 firmware to a new MCU family, audit the CISC instruction timing; cycle-accurate routines may need rebalancing on RISC targets. Always check the latest NXP product-change notifications before committing new production builds.
Información de cumplimiento
MCHC908JK1ECPE is marked No Longer Manufactured by NXP. RoHS/REACH compliance status was not present in the verified web data; consult NXP product-change notifications for definitive compliance before qualified production runs. AEC-Q100 qualification status not applicable to this industrial-grade part.
