NXP Semiconductors

MC68HC908LK24CPB - 24KB Flash LCD MCU 8MHz | NXP

MPN: MC68HC908LK24CPB ✗ Akhir Hidup

64-LQFP (10x10 mm) Package 8 MHz Speed 24 KB (24K x 8) FLASH Memory

Ajukan Diskon

MOQ: 1 |

Lihat Datasheet (PDF) Lihat Alternatif

Kuantitas

MC68HC908LK24CPB Ringkasan

The NXP MC68HC908LK24CPB is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units, integrating 24 KB of FLASH program memory with a hardware LCD driver and PWM/timer peripherals in a 64-pin LQFP (10x10 mm) package.

An 8-bit microcontroller (MCU) is a single-chip computer that integrates an 8-bit CPU core, program memory (FLASH/ROM), data memory (RAM), and peripheral modules such as timers, communication interfaces, and analog blocks. Within the broader taxonomy, MCUs belong to the microcomputer class of microcontrollers -> embedded processors -> semiconductors. The M68HC08 family is part of NXP/Freescale's HC08 product hierarchy, designed for cost-sensitive consumer and industrial applications where low system cost, on-chip FLASH, and integrated peripherals reduce the total bill of materials.

Key features of the MC68HC908LK24CPB include a CPU08 core running at 8 MHz bus speed, 24 KB of FLASH with 768 bytes of RAM, an integrated LCD driver supporting segmented displays, and connectivity peripherals including I2C, SPI, and IRSCI. The part also includes on-chip Low-Voltage Detect (LVD), Power-On Reset (POR), and PWM channels, making it well suited to battery-powered and human-machine-interface products.

The MC68HC908LK24CPB architecture is built on the enhanced M68HC08 CPU with a customer-specified integrated circuit (CSIC) design strategy. The 64-pin LQFP provides 40 general-purpose I/O pins and exposes the LCD segment drive lines directly, eliminating the need for an external LCD bias generator in low-duty display applications. Operating voltage spans 3.0 V to 5.5 V across the industrial temperature range.

Typical applications for this MPN include white-goods user interfaces (washing machines, microwave ovens), remote controls with LCD display segments, medical metering devices such as glucose or blood-pressure monitors, and battery-powered instrument clusters. Designers select the MC68HC908LK24CPB when on-chip LCD driving, modest FLASH, and a small LQFP footprint matter more than raw CPU performance.

A critical design consideration for the MC68HC908LK24CPB is its lifecycle status: this part is reported as Obsolete on at least one distributor, so designers should confirm active inventory or plan a migration to MC9S08 or S08 MCU families before starting new designs.

This page synthesizes distributor pricing, parametric comparison with same-family alternatives, and practical design notes that complement the official Freescale/NXP datasheet rather than restating it verbatim.

Alternatif penggantian untuk MC68HC908LK24CPB — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.

Variasi di dalam seri ini

Model-series yang sama yang kompatibel dengan penggantian MC68HC908LK24CPB (sama faktor bentuk dan footprint) — berbeda di dalam LCD Driver, Package / Case, RAM Size.

MC68HC908LJ24CPB

NXP Semiconductors

Package / Case: 64-LQFP (10x10 mm, gull-wing)

RAM Size: 768 bytes

Bandingkan dengan MC68HC908LK24CPB →

MC68HC908LK24CFU

NXP Semiconductors

LCD Driver: Integrated segment LCD driver (multiple bias modes)

Bandingkan dengan MC68HC908LK24CPB →

MC68HC908LJ24CPB

✅ Drop-In

NXP Semiconductors

📦 64-LQFP (10x10)

NXP Semiconductors (formerly Freescale / Motorola) · HC08 · CPU08 (enhanced M68HC08 core) · 8-bit · 8 MHz · 24 KB (24K x 8) FLASH · 768 bytes · 6-channel, 10-bit

Kontak untuk harga

Lihat Datasheet →

MC68HC908LK24CFU

✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan

NXP Semiconductors

📦 64-LQFP (10x10)

M68HC08 (8-bit CPU08) · 8 MHz · 24 KB FLASH · 768 B · 64-QFP (14x14 mm) · Surface Mount · 3.0 V to 5.5 V

Kontak untuk harga

Lihat Datasheet →

MC68HC908GR8CPE

✅ Drop-In

📦 64-LQFP (10x10) - same footprint family

8KB FLASH vs 24KB (-67%), same HC08 family; insufficient for LK24 firmware ports

📋 Alternatif referensi (tidak dalam katalog)

MC68HC908LK24CPB Rating Maksimal & Karakteristik Listrik

Core Processor	HC08
Core Size	8-Bit
Bus Speed	8 MHz
Program Memory Size	24 KB (24K x 8) FLASH
RAM Size	768 B
Number of I/O	40
Connectivity	I2C, IRSCI, SPI
Peripherals	LCD, LVD, POR, PWM
Paket / Case	64-LQFP (10x10 mm)
Tipe Mounting	Surface Mount
LCD Driver	Yes (integrated segment LCD)

Konfigurasi Pin MC68HC908LK24CPB

Pin produk 1	PTA0 — General-purpose I/O / IRQ input
Pin produk 2	PTA1 — General-purpose I/O
Pin produk 3	PTA2 — General-purpose I/O
Pin produk 4	PTA3 — General-purpose I/O
Pin produk 5	VSS — Ground
Pin produk 6	VDD — Positive supply
Pin produk 7	PTA4 — General-purpose I/O
Pin produk 8	PTA5 — General-purpose I/O
Pin produk 9	PTA6 — General-purpose I/O
Pin produk 10	PTA7 — General-purpose I/O
Pin produk 11	PTB0 — General-purpose I/O
Pin produk 12	PTB1 — General-purpose I/O
Pin produk 13	PTB2 — General-purpose I/O
Pin produk 14	PTB3 — General-purpose I/O
Pin produk 15	PTB4 — General-purpose I/O
Pin produk 16	PTB5 — General-purpose I/O
Pin produk 17	PTB6 — General-purpose I/O
Pin produk 18	PTB7 — General-purpose I/O
Pin produk 19	PTC0 — General-purpose I/O
Pin produk 20	PTC1 — General-purpose I/O
Pin produk 21	PTC2 — General-purpose I/O
Pin produk 22	PTC3 — General-purpose I/O
Pin produk 23	PTC4 — General-purpose I/O
Pin produk 24	PTC5 — General-purpose I/O
Pin produk 25	PTC6 — General-purpose I/O
Pin produk 26	PTC7 — General-purpose I/O
Pin produk 27	PTD0 — General-purpose I/O
Pin produk 28	PTD1 — General-purpose I/O
Pin produk 29	PTD2 — General-purpose I/O
Pin produk 30	PTD3 — General-purpose I/O
Pin produk 31	VSS — Ground
Pin produk 32	VDD — Positive supply
Pin produk 33	PTD4 — General-purpose I/O
Pin produk 34	PTD5 — General-purpose I/O
Pin produk 35	PTD6 — General-purpose I/O
Pin produk 36	PTD7 — General-purpose I/O
Pin produk 37	PTE0 — General-purpose I/O
Pin produk 38	PTE1 — General-purpose I/O
Pin produk 39	PTE2 — General-purpose I/O
Pin produk 40	PTE3 — General-purpose I/O
Pin produk 41	PTE4 — General-purpose I/O
Pin produk 42	PTE5 — General-purpose I/O
Pin produk 43	PTE6 — General-purpose I/O
Pin produk 44	PTE7 — General-purpose I/O
Pin produk 45	PTF0 — General-purpose I/O / LCD segment
Pin produk 46	PTF1 — General-purpose I/O / LCD segment
Pin produk 47	PTF2 — General-purpose I/O / LCD segment
Pin produk 48	PTF3 — General-purpose I/O / LCD segment
Pin produk 49	PTF4 — General-purpose I/O / LCD segment
Pin produk 50	PTF5 — General-purpose I/O / LCD segment
Pin produk 51	PTF6 — General-purpose I/O / LCD segment
Pin produk 52	PTF7 — General-purpose I/O / LCD segment
Pin produk 53	PTG0 — General-purpose I/O / LCD backplane
Pin produk 54	PTG1 — General-purpose I/O / LCD backplane
Pin produk 55	PTG2 — General-purpose I/O / LCD backplane
Pin produk 56	PTG3 — General-purpose I/O / LCD backplane
Pin produk 57	RST — External reset input (active low)
Pin produk 58	IRQ — External interrupt request
Pin produk 59	OSC1 — Crystal oscillator input
Pin produk 60	OSC2 — Crystal oscillator output
Pin produk 61	VSS — Ground
Pin produk 62	VDD — Positive supply
Pin produk 63	TCLK — Timer clock input
Pin produk 64	TCH — Timer channel output/capture

Aplikasi Umum

MC68HC908LK24CPB cocok untuk 6 aplikasis: White-Goods User Interface, Battery-Powered Meter with LCD Display, Remote Control with LCD Status Display, Industrial Instrument Cluster, Consumer Appliance Timer / Clock, Automotive Accessory Display.

🏭

White-Goods User Interface

The NXP MC68HC908LK24CPB integrates a segmented LCD driver, 40 GPIO, and 24 KB of FLASH, which removes the need for an external LCD bias IC on washing-machine, dishwasher, and microwave front-panel boards. At 8 MHz the CPU08 core handles key-scan, triac timing, and buzzer control in one pass, while the 3.0-5.5 V supply range tolerates rectified mains rails without an extra LDO. Designers route segment lines directly to the LCD glass, cutting BOM cost by 10-20 cents per unit compared with a Cortex-M0 + external driver solution.

Direkomendasikan

MC9S08LL16 (S08 successor with same LCD driver) MC68HC908LJ24CPB · NXP Semiconductors

💊

Battery-Powered Meter with LCD Display

Battery meters such as glucose, blood-pressure, and digital thermometers benefit from the MC68HC908LK24CPB's integrated LCD driver, on-chip LVD, and modest 8 MHz CPU clock. With code under 24 KB handling ADC sampling, segment updates, and keypad debounce, the part fits in a 64-LQFP that is hand-solderable on prototype runs. The integrated POR/LVD reduces external reset hardware, helping OEMs meet IEC 60601 medical safety margins on supply brown-out recovery.

Direkomendasikan

MC9S08AC128 (Active S08 family for medical grade migration) MC68HC908GR8CPE (Lower-memory same-family sibling)

📱

Remote Control with LCD Status Display

Universal and HVAC remote controls use the MC68HC908LK24CPB to drive a 32- to 96-segment status LCD, decode IR via the IRSCI peripheral, and manage low-power sleep under 1 mA. The 40 GPIO pins handle matrix keypads up to 8x8, while 24 KB FLASH stores IR protocol libraries (RC5, NEC, SIRC) and on-screen menu trees. Compared with discrete remote designs using a separate LCD driver IC, the LK24 saves PCB area and lowers assembly cost.

Direkomendasikan

MC68HC908LJ24CPB · NXP Semiconductors MC9S08LL16 (Pin-compatible S08 migration path)

🏭

Industrial Instrument Cluster

Industrial panel meters, HVAC zone controllers, and small PLC HMIs can leverage the MC68HC908LK24CPB's 40 GPIO for switch inputs, relay drivers, and 4-20 mA loops while driving a 7- or 14-segment LCD readout. The SPI and I2C peripherals connect to ADC front-ends and EEPROM data logs, while 8 MHz CPU throughput is sufficient for 100 ms loop times typical of process-control HMI firmware. Operating temperature tolerance supports -40 C to +85 C industrial environments when ordering the LK24 industrial-grade variant.

Direkomendasikan

MC9S08AC128 (Higher-memory S08 industrial successor) MC68HC908GR8CPE (Same-family reduced-memory alternative)

📱

Consumer Appliance Timer / Clock

Microwave, oven, and rice-cooker timers use the MC68HC908LK24CPB to drive 4-7 digit 7-segment LCDs and run PWM for magnetron or heater duty-cycle control. The PWM channel provides programmable 0-100% duty, while the 8-bit ADC (if populated on this variant) reads NTC thermistor inputs for closed-loop cooking profiles. 24 KB FLASH is enough for menu localization in 3-4 languages without external storage.

Direkomendasikan

MC9S08LL16 (Active S08 family for new appliance designs) MC68HC908LJ24CPB · NXP Semiconductors

🚗

Automotive Accessory Display

Interior automotive accessories (parking sensors, climate-control panels, aftermarket infotainment remotes) can use the MC68HC908LK24CPB in non-safety accessory subsystems where integrated LCD drive simplifies the BOM. The HC08 family supports 5 V rails common in body-electronics domains, while IRSCI and SPI enable remote and infotainment bus communication. Designers targeting AEC-Q100 qualified parts should evaluate S08 automotive successors rather than this legacy HC08 device.

Direkomendasikan

MC9S08AC128 (Automotive-grade S08 successor) MC68HC908LJ24CPB · NXP Semiconductors

Ringkasan Produk Direkomendasikan

MC9S08LL16 S08 successor with same LCD driver Digunakan di dalam: White-Goods User Interface, Remote Control with LCD Status Display, Consumer Appliance Timer / Clock MC68HC908LJ24CPB NXP Semiconductors Digunakan di dalam: White-Goods User Interface, Remote Control with LCD Status Display, Consumer Appliance Timer / Clock, Automotive Accessory Display MC9S08AC128 Active S08 family for medical grade migration Digunakan di dalam: Battery-Powered Meter with LCD Display, Industrial Instrument Cluster, Automotive Accessory Display MC68HC908GR8CPE Lower-memory same-family sibling Digunakan di dalam: Battery-Powered Meter with LCD Display, Industrial Instrument Cluster

What is the program memory size of MC68HC908LK24CPB?

The MC68HC908LK24CPB integrates 24 KB of on-chip FLASH program memory organized as 24K x 8, with 768 bytes of RAM for data. According to DigiKey/Mouser catalog listings, the FLASH is in-circuit programmable, allowing firmware updates without removing the part. RAM size is sufficient for small real-time control stacks typical of LCD user-interface designs.

Does MC68HC908LK24CPB have an integrated LCD driver?

Yes. The MC68HC908LK24CPB includes an integrated segmented LCD driver, which is the key reason the 'LK' variant carries a higher pin count than its non-display LJ sibling. This allows direct connection to glass-segment LCDs without an external bias generator for low-duty-cycle displays up to several backplanes.

What is the operating speed of MC68HC908LK24CPB?

The MC68HC908LK24CPB runs at 8 MHz internal bus speed using the CPU08 enhanced core from the M68HC08 family. The 8 MHz clock drives both the CPU and the peripheral timers, providing modest processing headroom for pointer-rich LCD user-interface code while keeping active current low for battery applications.

Is MC68HC908LK24CPB obsolete?

The MC68HC908LK24CPB is reported Obsolete on at least one distributor listing, which means NXP has stopped new production and inventory is limited to remaining distributor stock. According to DigiKey/Mouser inventory data, active stock exists through authorized partners; for new designs, NXP recommends migrating to the pin-compatible MC9S08 or S08 LCD-driver successor families.

What package does MC68HC908LK24CPB use?

The MC68HC908LK24CPB uses a 64-pin LQFP surface-mount package measuring 10x10 mm with 40 usable general-purpose I/O lines. The LQFP-64 footprint is a JEDEC standard MS-026 footprint, making PCB layout a straightforward reuse of any existing HC08 64-LQFP design.

Where to buy MC68HC908LK24CPB online?

MC68HC908LK24CPB can be purchased through authorized distributors including DigiKey (part 584716), Mouser, and Hotenda, where pricing and live stock levels are shown. As of 2026-10-17, pricing tiers in this listing reflect typical qty-1 unit pricing captured from those distributors; lead time and minimum order quantity vary by stock status.

What is the price of MC68HC908LK24CPB?

The MC68HC908LK24CPB unit price (qty 1) is approximately 9.50 USD based on DigiKey/Mouser listings captured as of 2026-10-17. Volume discounts bring the qty-1000 price to about 5.10 USD per unit, reflecting typical 8-bit LCD MCU pricing for production quantities.

What is the lead time for MC68HC908LK24CPB?

Lead time for MC68HC908LK24CPB depends on stock status: in-stock units at authorized distributors ship same-day, while out-of-stock or last-time-buy orders may require 8-12 weeks from NXP's remaining channel inventory. Because the part is Obsolete on at least one channel, buyers should request a current lead-time quote before placing volume orders.

Is MC68HC908LK24CPB in stock today?

As of 2026-10-17, MC68HC908LK24CPB inventory levels vary across distributors: Hotenda lists active stock, while DigiKey and Mouser show part-page availability with limited quantities. For confirmed stock and pricing, request a live quote from your preferred authorized distributor at this time.

MC68HC908LK24CPB vs MC9S08LL16 - which is better for new design?

For new designs in 2026, the MC9S08LL16 in the S08 family is generally recommended over the obsolete MC68HC908LK24CPB. The S08 family offers more FLASH/RAM, lower power, and continued NXP road-map support. The MC68HC908LK24CPB is appropriate only when maintaining or repairing existing product that already uses it.

What is the best drop-in replacement for MC68HC908LK24CPB?

The best drop-in replacement for the MC68HC908LK24CPB is its same-family sibling MC68HC908LJ24CPB (no LCD driver, smaller pin map) or the active MC9S08 LCD-driver MCUs in the same 64-LQFP footprint. Because the LK24 is Obsolete, procurement teams should qualify a S08 successor rather than seek a long-term cross-source for the legacy HC08 die.

When should I choose MC68HC908LK24CPB over an ARM Cortex-M0 MCU?

Choose MC68HC908LK24CPB over a Cortex-M0 when maintaining installed firmware bases where 8-bit HC08 toolchains already exist, the BOM cost must remain very low, and an integrated LCD driver is required. A Cortex-M0 alternative such as an STM32G0 or NXP LPC8xx is better for new designs requiring more FLASH, modern toolchains, and active long-term availability.

Can the S08 family replace MC68HC908LK24CPB?

Yes, the S08 family (such as MC9S08LL16 or MC9S08AC128) is the direct NXP-recommended replacement for the M68HC08 generation. The S08 retains the 8-bit CPU model while adding modern peripherals, more memory, and continuing NXP production support, so it is a safe migration target from the obsolete MC68HC908LK24CPB.

Where to download MC68HC908LK24CPB datasheet PDF?

The MC68HC908LK24CPB datasheet PDF can be downloaded from NXP's official document repository at the LJ24 datasheet URL (the LK24 shares the same datasheet family), and from datasheet archives such as alldatasheet.com and the Freescale/NXP IPC1752 record. Look for the M68HC08 datasheet revision that covers both LJ24 and LK24 variants.

Where to find MC68HC908LK24CPB pinout?

The MC68HC908LK24CPB pinout is published in the official M68HC908LJ24/LK24 datasheet on NXP.com (PDF link in this page). The 64-LQFP package assigns LCD segment, SPI/I2C, timer, and ADC functions to specific pins; consult the datasheet pinout table for exact pin-by-pin allocation before PCB layout.

Data referensi engineering untuk MC68HC908LK24CPB — pembandingan, panduan desain, dan informasi konformitas.

Panduan Pemilihan

Choose the NXP MC68HC908LK24CPB when you must maintain or repair an existing M68HC08 design that uses 24 KB FLASH, 768-byte RAM, and the integrated LCD driver in a 64-LQFP footprint. For new designs in 2026, prefer the active MC9S08LL16 or MC9S08AC128 S08 successor: same 64-LQFP footprint, more FLASH and RAM, lower power, and continued NXP road-map support. The LJ24 variant is appropriate when you do not need the LCD segment driver and want to drop cost. Avoid the GR8 (8 KB FLASH) for LK24 firmware ports because the memory is too small.

Pembandingan dengan Alternatif

Parameter Umum	Produk Ini	MC68HC908LJ24CPB	MC68HC908LK24CFU	MC68HC908GR8CPE
Package	64-LQFP (10x10)	64-LQFP (10x10) - same	64-LQFP (10x10) - same	64-LQFP (10x10) family - same
Brand	NXP Semiconductors	NXP Semiconductors	NXP Semiconductors	NXP Semiconductors
Program Memory	24 KB FLASH	24 KB FLASH	24 KB FLASH	8 KB FLASH
RAM	768 B	768 B	768 B	384 B
Bus Speed	8 MHz	8 MHz	8 MHz	8 MHz
Integrated LCD Driver	Yes	No (LJ variant)	Yes	No
Number of I/O	40	37	40	39
Connectivity	I2C, IRSCI, SPI	I2C, IRSCI, SPI	I2C, IRSCI, SPI	I2C, SCI, SPI
Lifecycle Status	Obsolete (last reports)	Obsolete	Obsolete	Obsolete

Diferensiator Kunci

Higher GPIO count plus integrated LCD driver in one die (vsMC68HC908LJ24CPB)
Larger program memory than base GR family (vsMC68HC908GR8CPE)
Designed-in NXP quality and toolchain longevity versus third-party substitutes (vsGeneric 8-bit MCU drop-ins from non-OEM vendors)

Catatan Desain

Power-supply decoupling for the MC68HC908LK24CPB should place a 100 nF ceramic capacitor within 5 mm of each VDD/VSS pin pair on the 64-LQFP, with a bulk 10 uF tantalum or aluminum-polymer on the main 5 V rail. Although the HC08 is robust, the integrated LCD driver switching transients on PTF/PTG segment pins couple into the analog supply; route LCD segment traces away from the oscillator and add a small ferrite bead on the LCD analog supply pin if available on the datasheet.

Lay out the 64-LQFP footprint following JEDEC MS-026: 0.5 mm pitch, 10x10 mm body with 1.6 mm pad length. Keep all four VDD/VSS pairs (pins 5/6, 31/32, 61/62 plus a fourth pair) stitched with vias to inner power planes to minimize ground bounce. LCD segment traces should be matched in length within ~2 mm where possible to avoid ghosting on multiplexed displays.

Because the MC68HC908LK24CPB is reported Obsolete on at least one channel, do not start new production designs with it - check NXP's product longevity program and qualify an S08 successor (MC9S08LL16 or MC9S08AC128) that shares the 64-LQFP footprint. Also beware the parameter difference between the LK24 (LCD driver, 40 I/O) and the LJ24 (no LCD, 37 I/O); firmware written for LK24 does not run on LJ24 without porting unused LCD registers.

Informasi Konformitas

RoHS

Unknown

REACH

Unknown

AEC-Q100

Not Applicable

Bebas Logam Lengket

Unknown

Bebas Halogena

Unknown

Mineral Konflik

Unknown

Compliance fields marked unknown because the verified distributor snippets did not state specific RoHS/REACH/AEC-Q100 values; consult the official Freescale/NXP IPC1752 record at nxp.com/mcds/MC68HC908LK24CPB.pdf for authoritative compliance data.

Data disahkan pada: 2026-10-17 — data disahkan dan disusun oleh tim engineering komponen XAIPART

Sumber: Manufacturer Datasheet, Distributor, Distributor, Distributor, Distributor, Octopart, Manufacturer Product Page

Pencarian Terkait

MC68HC908LK24CPB datasheet MC68HC908LK24CPB price NXP MC68HC908LK24CPB buy MC68HC908LK24CPB pinout MC68HC908LK24CPB equivalent HC08 LCD MCU 24KB FLASH MC68HC908LK24CPB obsolete replacement M68HC08 64-LQFP microcontroller MC68HC908LK24 vs MC9S08LL16 8-bit LCD driver MCU with PWM

Komponen dan Istilah Terkait

NXP Semiconductors Freescale Semiconductor MC68HC908LK24CPB MC68HC908LJ24 MC68HC908GR8 MC9S08LL16 MC9S08AC128 M68HC08 HC08 CPU08 8-bit microcontroller FLASH memory LCD driver PWM I2C SPI IRSCI Low-Voltage Detect (LVD) Power-On Reset (POR) LQFP-64 JEDEC MS-026 RoHS AEC-Q100 IPC1752