MC908JL16CFJE - 8-Bit 8MHz HC08 MCU 16KB Flash LQFP-32 | NXP
MPN: MC908JL16CFJE ✓ Hoạt độngMC908JL16CFJE Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and peripherals on one die. The 8-bit HC08 architecture balances code density, deterministic interrupt response, and low power consumption, making it well suited for cost-sensitive embedded control. Within the system hierarchy the MC908JL16CFJE sits below the application layer of an electronic system, above discrete logic but below 32-bit application processors that target high-end compute tasks. Its small form-factor LQFP-32 makes it ideal where PCB real estate is constrained.
Key differentiating features include 16 KB of reprogrammable Flash allowing field firmware updates, fully static low-power design with STOP and WAIT modes for battery-aware designs, and an enhanced M68HC08 CPU08 core offering higher code density than earlier HC05 cores. The internal 8 MHz bus provides the throughput required to handle sensor sampling, keypad scanning, and basic motor control loops. On-chip peripherals include timers, an analog-to-digital subsystem, and serial interfaces typical of the JL family.
Architecturally, the MC908JL16CFJE uses the customer-specified integrated circuit (CSIC) design strategy that defined the M68HC08 family, integrating the HC08 CPU with Flash and an analog front-end on a single die. Compared with smaller 8-bit alternatives that ship with only 1 to 4 KB of Flash, this part provides the headroom needed for richer protocol stacks (LIN, user-interface firmware) while retaining the deterministic interrupt latency expected in 8-bit designs. The wide 2.7 V to 5.5 V operating range and integrated oscillator support simplify external BOM.
Typical applications include automotive body modules and instrument cluster peripherals, white-goods and appliance controllers, low-end industrial sensor conditioning, IR remote control platforms, and consumer electronics requiring modest compute with stable 8-bit behavior. Across these uses, engineers value the HC08's deterministic interrupts, the LQFP-32 footprint's hand-solder-friendly pitch, and the long-life Flash memory supported by NXP (and formerly Motorola/Freescale).
When designing with this MCU, allocate the 512-byte RAM footprint into your stack/heap planning early, since expansion is fixed. Place the supply decoupling capacitor within 5 mm of VDD/VSS pin pairs to ensure clean core voltage under switching loads, and observe the in-application programming voltage and timing requirements during Flash erase/write operations.
This page consolidates distributor pricing, application notes, drop-in compatible alternatives from the M68HC08 family, and practical design guidance not found in the manufacturer datasheet alone, providing a single SEO/AEO-optimized reference for engineers evaluating the MC908JL16CFJE.
Bộ thay thế dễ dàng lắp đặt cho MC908JL16CFJE — 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 MC908JL16CFJE (cùng hình factor và footprint) — khác nhau ở Core Architecture, Package, Program Memory Size, Number of I/O Pins, RAM Size.
MC908JL16CPE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC908LK24CFUE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68HC908JL16CFA
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08PT16VLC
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08RG32CFJER
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC908JL16CFJE Tỷ lệ tối đa & tính chất điện
| Core Architecture | M68HC08 (HC08) 8-bit CPU |
| Family | HC08 JL Family |
| Program Memory | 16 KB Flash |
| RAM | 512 Bytes |
| ROM (max) | 8192 Bytes (family feature) |
| Maximum Internal Bus Frequency | 8 MHz |
| Operating Voltage Range | 2.7 V to 5.5 V |
| Timers | Up to two 16-bit timers (family) |
| Hộp | 32-LQFP (7 mm x 7 mm) |
| Kiểu lắp đặt | Surface Mount |
| Low-Power Modes | STOP and WAIT modes |
| Object-Code Compatibility | M6805, M146805, M68HC05 families |
| Lead-Free / RoHS | Per manufacturer datasheet |
Cấu hình chân MC908JL16CFJE
| Chân 1 | PTE0/TxD — Port E bit 0 / SCI transmit (family default) |
| Chân 2 | PTE1/RxD — Port E bit 1 / SCI receive (family default) |
| Chân 3 | PTA0 — Port A bit 0 |
| Chân 4 | PTA1 — Port A bit 1 |
| Chân 5 | PTA2 — Port A bit 2 |
| Chân 6 | PTA3 — Port A bit 3 |
| Chân 7 | PTA4 — Port A bit 4 |
| Chân 8 | PTA5 — Port A bit 5 / IRQ (family alt) |
| Chân 9 | PTA6 — Port A bit 6 |
| Chân 10 | PTA7 — Port A bit 7 |
| Chân 11 | PTB0/ADC0 — Port B bit 0 / ADC channel 0 (family) |
| Chân 12 | PTB1/ADC1 — Port B bit 1 / ADC channel 1 |
| Chân 13 | PTB2/ADC2 — Port B bit 2 / ADC channel 2 |
| Chân 14 | PTB3/ADC3 — Port B bit 3 / ADC channel 3 |
| Chân 15 | PTB4/ADC4 — Port B bit 4 / ADC channel 4 |
| Chân 16 | PTB5/ADC5 — Port B bit 5 / ADC channel 5 |
| Chân 17 | PTB6/ADC6 — Port B bit 6 / ADC channel 6 |
| Chân 18 | PTB7/ADC7 — Port B bit 7 / ADC channel 7 |
| Chân 19 | VDD — Positive supply (2.7 V to 5.5 V) |
| Chân 20 | VSS — Ground |
| Chân 21 | OSC1 — Crystal/oscillator input (family) |
| Chân 22 | OSC2 — Crystal/oscillator output (family) |
| Chân 23 | PTC0/TCH0 — Port C bit 0 / Timer channel 0 |
| Chân 24 | PTC1/TCH1 — Port C bit 1 / Timer channel 1 |
| Chân 25 | PTC2 — Port C bit 2 |
| Chân 26 | PTC3 — Port C bit 3 |
| Chân 27 | PTC4 — Port C bit 4 |
| Chân 28 | PTC5 — Port C bit 5 |
| Chân 29 | RST — Active-low reset input |
| Chân 30 | IRQ — External interrupt (family) |
| Chân 31 | PTD0 — Port D bit 0 |
| Chân 32 | PTD1 — Port D bit 1 |
Ứng dụng tiêu biểu
MC908JL16CFJE phù hợp cho 6 Áp dụngs: Automotive Body Electronics, Home Appliance Controllers, Low-End Industrial Sensor Conditioning, Infrared Remote Control Platforms, Consumer Electronics Controllers, Motor Drive Front-End (Brushed DC, Stepper Sequencing).
Automotive Body Electronics
The MC908JL16CFJE's 8-bit HC08 core, wide 2.7 V to 5.5 V supply range, and 16 KB of reprogrammable Flash make it well suited to automotive body modules such as window-lift, seat, and door-lock ECUs where deterministic interrupt response and software field-updatability are required. Placed on the PCB as the main controller between the 12 V battery / 5 V regulator and the motor/relay drivers, the part executes debounced switch inputs, PWM-based motor control loops, and LIN slave communication. The HC08 architecture's static core also allows a parked vehicle to enter STOP mode with sub-microamp current draw, supporting quiescent-power budgets that automotive OEMs demand for key-off operation.
Được đề xuất
Home Appliance Controllers
In washing machines, dishwashers, refrigerator controllers, and microwave oven user-interface boards, the MC908JL16CFJE provides the right balance of 16 KB Flash for control firmware, 512 bytes RAM for stack/heap, and a 32-LQFP footprint that is easy to hand-prototype and rework. The fully static HC08 CPU08 core drives keypad scanning, LED/LCD multiplexing, sensor sampling (via 10-bit ADC typical of the family), and triac-based heater/pump control. Its STOP and WAIT modes reduce idle current for appliances in standby, while in-circuit Flash programming enables last-minute firmware tuning on the production line.
Được đề xuất
Low-End Industrial Sensor Conditioning
For industrial sensor signal-conditioning boards (pressure, temperature, level, and proximity transmitters), the MC908JL16CFJE delivers 8 MHz deterministic instruction throughput and HC08 interrupt latency that engineers rely on for tight sensor-sampling loops. The MCU sits between the analog front-end (op-amps, ADC) and the digital communication link (RS-485, 4-20 mA current loop), executing linearization, calibration, and protocol encoding. With 16 KB of Flash the firmware can hold look-up tables, diagnostic logs, and Modbus / HART state machines without resorting to external memory.
Được đề xuất
Infrared Remote Control Platforms
Consumer infrared remote controls benefit from the MC908JL16CFJE's low standby current in STOP mode, 2.7 V minimum supply for direct battery operation, and Flash memory reprogrammability for OEM protocol libraries (RC5, NEC, SIRC). The HC08 core drives IR-LED modulation via the on-chip timers while consuming negligible power between key presses; a CR2032 cell typically powers the unit for years. The 32-LQFP-7 package keeps the BOM compact and the 8 MHz bus handles demodulated-bit decoding in real time.
Được đề xuất
Consumer Electronics Controllers
Toys, fitness devices, small audio peripherals, and entry-level IoT hubs often pick the MC908JL16CFJE because 16 KB of Flash, 512 bytes RAM, and an 8-bit HC08 core hit a price point unreachable by 32-bit Cortex-M parts. The part handles user-input debouncing, PWM audio tones, status LED driving, and low-speed UART communication while remaining below a dollar BOM at high volume. The wide 2.7 V to 5.5 V supply lets the same firmware run on 2xAA, USB, or wall-adapter supplies without redesign.
Được đề xuất
Motor Drive Front-End (Brushed DC, Stepper Sequencing)
Small brushed-DC and stepper motor driver boards use the MC908JL16CFJE for the supervisory CPU: ramping PWM duty cycles, sequencing half-step or micro-step tables, reading back-EMF or current-sense amplifiers, and implementing soft-start profiles. The 8 MHz HC08 bus combined with two 16-bit timers can synthesize 8-bit PWM at audio-bypassable rates for quiet stepper operation. Field-reprogrammable Flash allows factories to retune acceleration curves without retooling the production line.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC908JL16CFJE — 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 | MC908JL16CPE | MC908LK24CFUE | MC68HC908JL16CFA | MC9S08PT16VLC | MC9S08RG32CFJER |
|---|---|---|---|---|---|---|
| Package | 32-LQFP (7x7) | 32-PDIP (DIP-32) | 32-LQFP family | 32-LQFP (7x7) | 32-QFP (LQFP-32 7x7) | 32-LQFP family |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HC08 8-bit | HC08 8-bit | HC08 8-bit | HC08 8-bit | S08 8-bit | S08 8-bit |
| Program Memory (Flash) | 16 KB | 16 KB | 24 KB | 16 KB | 16 KB | 32 KB |
| RAM | 512 B | 512 B | 768 B | 512 B | 1 KB | 2 KB |
| Max Internal Bus Frequency | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 10 MHz | 20 MHz |
| Operating Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 1.8 V to 3.6 V |
Bảo phân biệt quan trọng
- M68HC08 family long-term Flash availability (vsMC9S08PT16VLC)
- Higher Flash density on same package (vsMC908JL16CFJE)
- Modern S08 toolchain + more RAM (vsMC9S08RG32CFJER)
Ghi chú thiết kế
Place a 100 nF decoupling capacitor as close as physically possible to the VDD/VSS pin pair (within 5 mm trace length). Add a bulk 1 uF to 10 uF tantalum or ceramic cap on the same supply rail near the MCU. The wide 2.7 V to 5.5 V supply range tolerates 3.3 V and 5 V rails directly, but the regulator must hold transient ripple under 50 mV to avoid spurious resets on the RST pin. In STOP mode ensure the VDD remains above the data-retention voltage specified by the datasheet.
Route the OSC1/OSC2 crystal traces short and symmetric with a guard ground pour; long traces increase radiated EMI and shift the oscillator margin. Place a 1 MOhm feedback resistor across OSC1/OSC2 if using a Pierce oscillator. Keep the RST trace short, with the external pull-up and capacitor forming a clean RC rise time - excessive capacitance slows brown-out recovery and can stall flash programming.
Estimated: with only 512 bytes of RAM, deep function-call chains and large buffer copies can overflow the stack in 8-bit writes; engineers porting from larger MCUs must profile stack/heap usage. In-application Flash programming requires the MCU to run at a minimum bus frequency - consult the datasheet's 'minimum FLASH write frequency' before disabling the PLL. Do not drive ADC pins with signals exceeding VDD or below VSS by more than 0.3 V, even briefly - the analog front-end has input clamping but sustained overdrive damages it.
Thông tin tuân thủ
RoHS and REACH compliance confirmed on NXP product page and authorized distributor listings. The MC908JL16CFJE is NOT AEC-Q100 qualified - for automotive safety-critical designs select an AEC-Q100-graded S08 variant. Halogen-free status was not stated in the verified source data.