MC9RS08LA8CLF - 8KB Flash 8-Bit RS08 MCU w/ LCD | NXP
MPN: MC9RS08LA8CLF ⚠ Lần mua cuốiMC9RS08LA8CLF Tóm tắt
An 8-bit microcontroller (MCU) is a small, self-contained computing core built around an 8-bit data path, flash program memory, on-chip RAM, peripherals, and I/O. MCUs form the bottom of the embedded-computing hierarchy: 8-bit core -> microcontroller -> embedded processor -> semiconductor. The RS08 family is a streamlined HC08 subset aimed at ultra-low-cost LCD applications with active power saving modes for battery operation.
Key features include an 8-Bit RS08 Central Processor Unit running up to 20 MHz, 8KB (8K x 8) of Flash, 256 bytes of RAM, 31 I/O lines, and a segment LCD driver with integrated charge pump that supports bias-multiplexed glass up to 8x mode. The on-chip charge pump eliminates the need for an external LCD bias supply. An internal oscillator is provided; an external clock source is supported for applications requiring higher timing precision. The 48-LQFP package exposes the full peripheral set.
The MC9RS08LA8CLF uses the proven RS08 core with a 16-bit-wide internal architecture for fast byte-level operations, single-cycle peripheral access, and a BDM (Background Debug Mode) interface for in-system programming and debugging. The integrated charge-pump LCD driver supports 4x40 segments at 3V or 8x40 segments at 5V via the segment/large-pin multiplex arrangement, enabling direct connection to display glass without external drivers.
Typical applications include white-goods user interfaces, medical monitoring front panels, industrial HMI panels, low-cost metering instruments, and battery-powered sensor readouts with on-glass LCD readouts. The active-low reset, multiple stop/wait modes, and integrated RTCC make the part well suited to mains or battery powered appliances with energy-star compliance targets.
When designing with this part, the LCD charge-pump capacitor values from the reference design must be observed for proper display contrast, and the on-chip Vlcd reference must be configured to the target display glass. Plan board layout to keep the charge-pump traces short, and use proper decoupling at Vdd/Vss to minimize LCD segment rail noise visible on the display.
This page synthesizes drop-in compatible alternates (where they exist), lifecycle risk flags from NXP's End-of-Life notice, and engineering guidance sourced from the manufacturer datasheet and distributor inventory. Use the comparison table to confirm pinout and peripheral set matches before substituting in a board that uses the LCD driver.
Bộ thay thế dễ dàng lắp đặt cho MC9RS08LA8CLF — 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 MC9RS08LA8CLF (cùng hình factor và footprint) — khác nhau ở Mounting Type, Operating Temperature Range, Program Memory Size, Core Architecture, Package.
MC9RS08LA8CLFR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9RS08KA8CWJ
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MC9RS08LA8CLF Tỷ lệ tối đa & tính chất điện
| Core | RS08 (8-bit HC08 subset) |
| Program Memory Size | 8 KB (8K x 8) Flash |
| RAM Size | 256 B |
| Maximum CPU Frequency | 20 MHz |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Number of I/O Lines | 31 |
| Oscillator Type | Internal |
| LCD Driver | Integrated segmented LCD with charge pump |
| Hộp / Vỏ | 48-LQFP (7x7) |
| Kiểu lắp đặt | Surface Mount |
| Khoảng nhiệt độ hoạt động | -40C to +85C |
| Program Memory Type | Flash |
| Connectivity | I2C, SCI/SPI, GPIO |
| Peripherals | LCD driver, RTCC, ADC, TIM, KBI, BDM |
| Packaging | Tray |
| Cấp MSL | 3 |
| Trạng thái RoHS | Compliant |
| Series | RS08LA |
| Lifecycle | End of Life (Last Time Buy announced by NXP) |
Cấu hình chân MC9RS08LA8CLF
| Chân 1 | PTC0 / ADP0 — Port C bit 0 / ADC channel 0 |
| Chân 2 | PTC1 / ADP1 — Port C bit 1 / ADC channel 1 |
| Chân 3 | PTC2 / ADP2 — Port C bit 2 / ADC channel 2 |
| Chân 4 | PTC3 / ADP3 — Port C bit 3 / ADC channel 3 |
| Chân 5 | VSS — Ground |
| Chân 6 | VDD — Supply voltage (2.7V to 5.5V) |
| Chân 7 | PTA0 / SDA / KBI — Port A bit 0, I2C SDA, Keyboard Interrupt |
| Chân 8 | PTA1 / SCL / KBI — Port A bit 1, I2C SCL, Keyboard Interrupt |
| Chân 9 | PTA2 / TXD — Port A bit 2, SCI transmit |
| Chân 10 | PTA3 / RXD — Port A bit 3, SCI receive |
| Chân 11 | PTA4 / BKGD / MS — Background Debug Mode / Mode Select |
| Chân 12 | PTA5 / RESET — Active-low reset (shared with PTA5) |
| Chân 13 | PTA6 — Port A bit 6 / GPIO |
| Chân 14 | PTA7 — Port A bit 7 / GPIO |
| Chân 15 | PTB0 — Port B bit 0 / GPIO |
| Chân 16 | PTB1 — Port B bit 1 / GPIO |
| Chân 17 | PTB2 — Port B bit 2 / GPIO |
| Chân 18 | PTB3 — Port B bit 3 / GPIO |
| Chân 19 | PTB4 / SCLK — Port B bit 4, SPI clock |
| Chân 20 | PTB5 / MOSI — Port B bit 5, SPI master-out slave-in |
| Chân 21 | PTB6 / MISO — Port B bit 6, SPI master-in slave-out |
| Chân 22 | PTB7 / SS — Port B bit 7, SPI slave select |
| Chân 23 | PTC4 — Port C bit 4 / GPIO |
| Chân 24 | PTC5 — Port C bit 5 / GPIO |
| Chân 25 | PTC6 — Port C bit 6 / GPIO |
| Chân 26 | PTC7 — Port C bit 7 / GPIO |
| Chân 27 | LCD0 / PTD0 — LCD segment / Port D bit 0 |
| Chân 28 | LCD1 / PTD1 — LCD segment / Port D bit 1 |
| Chân 29 | LCD2 / PTD2 — LCD segment / Port D bit 2 |
| Chân 30 | LCD3 / PTD3 — LCD segment / Port D bit 3 |
| Chân 31 | LCD4 / PTD4 — LCD segment / Port D bit 4 |
| Chân 32 | LCD5 / PTD5 — LCD segment / Port D bit 5 |
| Chân 33 | LCD6 / PTD6 — LCD segment / Port D bit 6 |
| Chân 34 | LCD7 / PTD7 — LCD segment / Port D bit 7 |
| Chân 35 | LCD8 / PTE0 — LCD segment / Port E bit 0 |
| Chân 36 | LCD9 / PTE1 — LCD segment / Port E bit 1 |
| Chân 37 | LCD10 / PTE2 — LCD segment / Port E bit 2 |
| Chân 38 | LCD11 / PTE3 — LCD segment / Port E bit 3 |
| Chân 39 | LCD12 / PTE4 — LCD segment / Port E bit 4 |
| Chân 40 | LCD13 / PTE5 — LCD segment / Port E bit 5 |
| Chân 41 | LCD14 / PTE6 — LCD segment / Port E bit 6 |
| Chân 42 | LCD15 / PTE7 — LCD segment / Port E bit 7 |
| Chân 43 | LCD16 / PTF0 — LCD segment / Port F bit 0 |
| Chân 44 | LCD17 / PTF1 — LCD segment / Port F bit 1 |
| Chân 45 | LCD18 / PTF2 — LCD segment / Port F bit 2 |
| Chân 46 | LCD19 / PTF3 — LCD segment / Port F bit 3 |
| Chân 47 | LCD20 / PTF4 — LCD segment / Port F bit 4 |
| Chân 48 | LCD21 / PTF5 — LCD segment / Port F bit 5 |
Ứng dụng tiêu biểu
MC9RS08LA8CLF phù hợp cho 7 Áp dụngs: White Goods / Small Appliance User Interface, Medical Equipment Front Panel, Industrial Metering & Sensor Readout, Low-Cost Industrial HMI Panel, Battery-Powered Sensor Readout, Consumer Electronics with LCD Display, Energy-Star Compliant Appliance Control.
White Goods / Small Appliance User Interface
The MC9RS08LA8CLF fits white-goods UI boards (microwaves, dishwashers, washing machines) because its integrated segment-LCD driver with on-chip charge pump connects directly to 4x40 or 8x40 multiplexed display glass from a single 3.3V or 5V rail, eliminating the external LCD bias IC. With 8 KB Flash, 256 B RAM, and 31 GPIOs, it can run keypad scanning, RTCC, and display refresh on the RS08 core at 20 MHz without burdening the BOM. Compared to discrete HC08+LCD-driver designs, the part integrates the bias network and the segment driver in one 48-LQFP.
Được đề xuất
Medical Equipment Front Panel
The MC9RS08LA8CLF's combination of low-power modes, 2.7V-5.5V supply range, and integrated charge-pump LCD driver suits battery-powered medical front panels such as blood-pressure monitors and digital thermometers. Its 256 B RAM plus stop/wait low-power modes help extend battery life between measurements, while BDM enables in-system firmware updates in production. The 31 I/Os allow keypad, sensor, and LCD backlight control from a single chip, reducing PCB area in compact handhelds where board cost dominates the BOM.
Được đề xuất
Industrial Metering & Sensor Readout
For electricity meters, water meters, and gas-meter displays, the MC9RS08LA8CLF provides an on-chip RTCC and on-glass segment LCD driver that display consumption and status without additional driver ICs. The 8 KB Flash is sufficient for tariff logic and tamper detection, while the 20 MHz RS08 core responds quickly to keypad and pulse inputs. The integrated charge pump operates from a single lithium primary cell, simplifying battery-replaceable meter form factors across industrial metering deployments.
Được đề xuất
Low-Cost Industrial HMI Panel
The MC9RS08LA8CLF targets cost-driven HMI panels whose 8x40-segment LCD directly indicates pump status, set-points, and alarms without a graphics TFT. Up to 31 I/Os drive relays and read digital sensors, while the RS08 instruction set, BDM debug, and internal oscillator remove the need for an external resonator or in-circuit emulator. The wide 2.7V-5.5V supply tolerance accommodates 5V industrial PLC backplanes and 3.3V logic-level expansions from a single MCU footprint.
Được đề xuất
Battery-Powered Sensor Readout
The MC9RS08LA8CLF's stop/wait low-power modes draw minimal quiescent current between sensor conversions, making the part suitable for remote sensor readouts and wireless sensor nodes that display readings on a segment LCD. The internal oscillator eliminates the external crystal, reducing both BOM cost and standby current. The 31 GPIOs handle wake-up I/O, sensor excitation, and LCD segment drive concurrently, allowing a single chip to manage power, sensing, and human-interface in a battery-first design.
Được đề xuất
Consumer Electronics with LCD Display
For consumer products with on-glass LCD readouts such as digital scales, kitchen timers, and audio mixers, the MC9RS08LA8CLF integrates the RS08 core, segment-LCD driver, and on-chip charge pump in one 48-LQFP. The 20 MHz core executes keypad scanning and display refresh in real time, and the 256-byte RAM covers the working set of a typical UI state machine. Single-supply operation from 2.7V to 5.5V supports both 3V button-cell and 5V USB-powered product variants.
Được đề xuất
Energy-Star Compliant Appliance Control
The MC9RS08LA8CLF's documented low-power modes and -40C to +85C operating range suit energy-star appliance-control designs where standby power draw must meet regulatory thresholds. The integrated segment LCD driver with charge pump allows the appliance to communicate state on a glass display while drawing minimal current. With 8 KB Flash for control-loop firmware and RTCC for scheduling, designers meet energy-star targets without an external RTC chip or LCD bias IC, which simplifies the BOM and the standby-current budget.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9RS08LA8CLF — 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 | MC9RS08LA8CLFR | MC9RS08KA8CWJ | MC9RS08LA8CPE |
|---|---|---|---|---|
| Package | 48-LQFP (7x7) | 48-LQFP (7x7) - same | 48-LQFP (LA-family footprint assumed) | DIP-48 (PDIP) - not PCB-drop-in |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | RS08 (8-bit) | RS08 (8-bit) - same | RS08 (8-bit) - same | RS08 (8-bit) - same |
| Program Flash | 8 KB | 8 KB | 8 KB | 8 KB |
| CPU Frequency | 20 MHz | 20 MHz | 20 MHz (verify) | 20 MHz |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V (assumed) | 2.7 V to 5.5 V |
| LCD Driver | Yes (integrated + charge pump) | Yes (same) | Limited or no segment LCD | Yes (same) |
| Lifecycle Status | Last Time Buy / NXP EOL | Last Time Buy / EOL | Active (verify) | Last Time Buy / EOL |
Bảo phân biệt quan trọng
- Integrated segment LCD driver with on-chip charge pump (vsDiscrete HC08 + external LCD bias IC)
- Internal oscillator (no external crystal) (vsOlder MCUs requiring an external resonator)
- Wide 2.7V to 5.5V single-supply operation (vs3.3V-only 8-bit MCUs)
- RS08 streamlined core for cost-sensitive LCD products (vsFull S08 core MCUs)
Ghi chú thiết kế
Estimated: At Vdd=5V, 20 MHz CPU, all peripherals running, the typical active current is order-of-magnitude single-digit mA based on NXP datasheet Icc_run. For battery applications, transition through the documented stop modes and verify the wake-up latency matches the keypad poll period - the integrated charge-pump Vlcd must hold during stop to preserve LCD state, which NXP's datasheet confirms.
Place the LCD charge-pump flying-capacitor capacitors as close as possible to the Vlcd-related pins and keep traces short. Decouple Vdd/Vss with a 0.1uF X7R plus bulk capacitance following NXP's reference design. The 48-LQFP (7x7) has no exposed pad, so thermal performance is limited to copper pours under the package; allow a clear area beneath the part for the LCD segment routing.
Estimated: Be aware that the segment LCD pinout is unique to the LA subfamily; migrating firmware to the MC9S08LL8CLF requires reworking the LCD initialization because the LCD pin positions differ. Always verify reset, BKGD, and IRQC connections from the datasheet's pinout table before swap. Use the BDM interface for final firmware tuning, since the part shares the BKGD pin with a normal GPIO function.
Thông tin tuân thủ
RoHS compliance and lead-free (Pb-free matte-tin plating) per NXP product page. REACH, conflict-mineral, and halogen-free status not explicitly stated in the verified web data; treat as unknown rather than assuming.