MC9RS08LA8CLF - 8KB Flash 8-Bit RS08 MCU w/ LCD | NXP
Référence : MC9RS08LA8CLF ⚠ Dernier achat| Qté | Prix unitaire | 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 Présentation
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.
Alternatives de remplacement direct pour MC9RS08LA8CLF — 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 MC9RS08LA8CLF (même facteur de forme et même empreinte) — différant par Mounting Type, Operating Temperature Range, Program Memory Size, Core Architecture, Package.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC9RS08LA8CLFR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9RS08KA8CWJ
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$1.68 / unité
Voir la fiche technique →MC9RS08LA8CLF Valeurs maximales et caractéristiques électriques
| 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 |
| Boîtier / Format | 48-LQFP (7x7) |
| Type de montage | Surface Mount |
| Plage de température de fonctionnement | -40C to +85C |
| Program Memory Type | Flash |
| Connectivity | I2C, SCI/SPI, GPIO |
| Peripherals | LCD driver, RTCC, ADC, TIM, KBI, BDM |
| Packaging | Tray |
| Niveau MSL | 3 |
| Statut RoHS | Compliant |
| Series | RS08LA |
| Lifecycle | End of Life (Last Time Buy announced by NXP) |
Configuration des broches de MC9RS08LA8CLF
| Broche 1 | PTC0 / ADP0 — Port C bit 0 / ADC channel 0 |
| Broche 2 | PTC1 / ADP1 — Port C bit 1 / ADC channel 1 |
| Broche 3 | PTC2 / ADP2 — Port C bit 2 / ADC channel 2 |
| Broche 4 | PTC3 / ADP3 — Port C bit 3 / ADC channel 3 |
| Broche 5 | VSS — Ground |
| Broche 6 | VDD — Supply voltage (2.7V to 5.5V) |
| Broche 7 | PTA0 / SDA / KBI — Port A bit 0, I2C SDA, Keyboard Interrupt |
| Broche 8 | PTA1 / SCL / KBI — Port A bit 1, I2C SCL, Keyboard Interrupt |
| Broche 9 | PTA2 / TXD — Port A bit 2, SCI transmit |
| Broche 10 | PTA3 / RXD — Port A bit 3, SCI receive |
| Broche 11 | PTA4 / BKGD / MS — Background Debug Mode / Mode Select |
| Broche 12 | PTA5 / RESET — Active-low reset (shared with PTA5) |
| Broche 13 | PTA6 — Port A bit 6 / GPIO |
| Broche 14 | PTA7 — Port A bit 7 / GPIO |
| Broche 15 | PTB0 — Port B bit 0 / GPIO |
| Broche 16 | PTB1 — Port B bit 1 / GPIO |
| Broche 17 | PTB2 — Port B bit 2 / GPIO |
| Broche 18 | PTB3 — Port B bit 3 / GPIO |
| Broche 19 | PTB4 / SCLK — Port B bit 4, SPI clock |
| Broche 20 | PTB5 / MOSI — Port B bit 5, SPI master-out slave-in |
| Broche 21 | PTB6 / MISO — Port B bit 6, SPI master-in slave-out |
| Broche 22 | PTB7 / SS — Port B bit 7, SPI slave select |
| Broche 23 | PTC4 — Port C bit 4 / GPIO |
| Broche 24 | PTC5 — Port C bit 5 / GPIO |
| Broche 25 | PTC6 — Port C bit 6 / GPIO |
| Broche 26 | PTC7 — Port C bit 7 / GPIO |
| Broche 27 | LCD0 / PTD0 — LCD segment / Port D bit 0 |
| Broche 28 | LCD1 / PTD1 — LCD segment / Port D bit 1 |
| Broche 29 | LCD2 / PTD2 — LCD segment / Port D bit 2 |
| Broche 30 | LCD3 / PTD3 — LCD segment / Port D bit 3 |
| Broche 31 | LCD4 / PTD4 — LCD segment / Port D bit 4 |
| Broche 32 | LCD5 / PTD5 — LCD segment / Port D bit 5 |
| Broche 33 | LCD6 / PTD6 — LCD segment / Port D bit 6 |
| Broche 34 | LCD7 / PTD7 — LCD segment / Port D bit 7 |
| Broche 35 | LCD8 / PTE0 — LCD segment / Port E bit 0 |
| Broche 36 | LCD9 / PTE1 — LCD segment / Port E bit 1 |
| Broche 37 | LCD10 / PTE2 — LCD segment / Port E bit 2 |
| Broche 38 | LCD11 / PTE3 — LCD segment / Port E bit 3 |
| Broche 39 | LCD12 / PTE4 — LCD segment / Port E bit 4 |
| Broche 40 | LCD13 / PTE5 — LCD segment / Port E bit 5 |
| Broche 41 | LCD14 / PTE6 — LCD segment / Port E bit 6 |
| Broche 42 | LCD15 / PTE7 — LCD segment / Port E bit 7 |
| Broche 43 | LCD16 / PTF0 — LCD segment / Port F bit 0 |
| Broche 44 | LCD17 / PTF1 — LCD segment / Port F bit 1 |
| Broche 45 | LCD18 / PTF2 — LCD segment / Port F bit 2 |
| Broche 46 | LCD19 / PTF3 — LCD segment / Port F bit 3 |
| Broche 47 | LCD20 / PTF4 — LCD segment / Port F bit 4 |
| Broche 48 | LCD21 / PTF5 — LCD segment / Port F bit 5 |
Applications typiques
MC9RS08LA8CLF convient pour 7 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC9RS08LA8CLF — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- 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)
Notes de conception
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.
Informations de conformité
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.