MC9RS08LA8CLF - 8KB Flash 8-Bit RS08 MCU w/ LCD | NXP
N.º da peça: MC9RS08LA8CLF ⚠ Última compra| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.92 | $4,92 |
| 10 | $4.43 | $44,30 |
| 100 | $3.94 | $394,00 |
| 500 | $3.55 | $1.775,00 |
| 1.000 | $3.16 | $3.160,00 |
MC9RS08LA8CLF Visão geral
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.
Alternativas drop-in para MC9RS08LA8CLF — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MC9RS08LA8CLF (mesmo formato e footprint) — diferindo em Mounting Type, Operating Temperature Range, Program Memory Size, Core Architecture, Package.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MC9RS08LA8CLFR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MC9RS08KA8CWJ
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$1.68 / unidade
Ver ficha técnica →MC9RS08LA8CLF Classificações máximas e características elétricas
| 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 |
| Encapsulamento / Caixa | 48-LQFP (7x7) |
| Tipo de montagem | Surface Mount |
| Faixa de temperatura de operação | -40C to +85C |
| Program Memory Type | Flash |
| Connectivity | I2C, SCI/SPI, GPIO |
| Peripherals | LCD driver, RTCC, ADC, TIM, KBI, BDM |
| Packaging | Tray |
| Nível MSL | 3 |
| Status RoHS | Compliant |
| Series | RS08LA |
| Lifecycle | End of Life (Last Time Buy announced by NXP) |
Configuração de pinos do MC9RS08LA8CLF
| Pino 1 | PTC0 / ADP0 — Port C bit 0 / ADC channel 0 |
| Pino 2 | PTC1 / ADP1 — Port C bit 1 / ADC channel 1 |
| Pino 3 | PTC2 / ADP2 — Port C bit 2 / ADC channel 2 |
| Pino 4 | PTC3 / ADP3 — Port C bit 3 / ADC channel 3 |
| Pino 5 | VSS — Ground |
| Pino 6 | VDD — Supply voltage (2.7V to 5.5V) |
| Pino 7 | PTA0 / SDA / KBI — Port A bit 0, I2C SDA, Keyboard Interrupt |
| Pino 8 | PTA1 / SCL / KBI — Port A bit 1, I2C SCL, Keyboard Interrupt |
| Pino 9 | PTA2 / TXD — Port A bit 2, SCI transmit |
| Pino 10 | PTA3 / RXD — Port A bit 3, SCI receive |
| Pino 11 | PTA4 / BKGD / MS — Background Debug Mode / Mode Select |
| Pino 12 | PTA5 / RESET — Active-low reset (shared with PTA5) |
| Pino 13 | PTA6 — Port A bit 6 / GPIO |
| Pino 14 | PTA7 — Port A bit 7 / GPIO |
| Pino 15 | PTB0 — Port B bit 0 / GPIO |
| Pino 16 | PTB1 — Port B bit 1 / GPIO |
| Pino 17 | PTB2 — Port B bit 2 / GPIO |
| Pino 18 | PTB3 — Port B bit 3 / GPIO |
| Pino 19 | PTB4 / SCLK — Port B bit 4, SPI clock |
| Pino 20 | PTB5 / MOSI — Port B bit 5, SPI master-out slave-in |
| Pino 21 | PTB6 / MISO — Port B bit 6, SPI master-in slave-out |
| Pino 22 | PTB7 / SS — Port B bit 7, SPI slave select |
| Pino 23 | PTC4 — Port C bit 4 / GPIO |
| Pino 24 | PTC5 — Port C bit 5 / GPIO |
| Pino 25 | PTC6 — Port C bit 6 / GPIO |
| Pino 26 | PTC7 — Port C bit 7 / GPIO |
| Pino 27 | LCD0 / PTD0 — LCD segment / Port D bit 0 |
| Pino 28 | LCD1 / PTD1 — LCD segment / Port D bit 1 |
| Pino 29 | LCD2 / PTD2 — LCD segment / Port D bit 2 |
| Pino 30 | LCD3 / PTD3 — LCD segment / Port D bit 3 |
| Pino 31 | LCD4 / PTD4 — LCD segment / Port D bit 4 |
| Pino 32 | LCD5 / PTD5 — LCD segment / Port D bit 5 |
| Pino 33 | LCD6 / PTD6 — LCD segment / Port D bit 6 |
| Pino 34 | LCD7 / PTD7 — LCD segment / Port D bit 7 |
| Pino 35 | LCD8 / PTE0 — LCD segment / Port E bit 0 |
| Pino 36 | LCD9 / PTE1 — LCD segment / Port E bit 1 |
| Pino 37 | LCD10 / PTE2 — LCD segment / Port E bit 2 |
| Pino 38 | LCD11 / PTE3 — LCD segment / Port E bit 3 |
| Pino 39 | LCD12 / PTE4 — LCD segment / Port E bit 4 |
| Pino 40 | LCD13 / PTE5 — LCD segment / Port E bit 5 |
| Pino 41 | LCD14 / PTE6 — LCD segment / Port E bit 6 |
| Pino 42 | LCD15 / PTE7 — LCD segment / Port E bit 7 |
| Pino 43 | LCD16 / PTF0 — LCD segment / Port F bit 0 |
| Pino 44 | LCD17 / PTF1 — LCD segment / Port F bit 1 |
| Pino 45 | LCD18 / PTF2 — LCD segment / Port F bit 2 |
| Pino 46 | LCD19 / PTF3 — LCD segment / Port F bit 3 |
| Pino 47 | LCD20 / PTF4 — LCD segment / Port F bit 4 |
| Pino 48 | LCD21 / PTF5 — LCD segment / Port F bit 5 |
Aplicações típicas
MC9RS08LA8CLF é adequado para 7 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MC9RS08LA8CLF — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- Integrated segment LCD driver with on-chip charge pump (vs Discrete HC08 + external LCD bias IC)
- Internal oscillator (no external crystal) (vs Older MCUs requiring an external resonator)
- Wide 2.7V to 5.5V single-supply operation (vs 3.3V-only 8-bit MCUs)
- RS08 streamlined core for cost-sensitive LCD products (vs Full S08 core MCUs)
Notas de projeto
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.
Informações de conformidade
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.