NXP Semiconductors

MC908AP64CFAER528 - 8-bit HC08 MCU 64KB Flash 48-LQFP | NXP

部品番号: MC908AP64CFAER528 ✗ 生産終了
在庫あり 1〜3営業日以内に発送
48-LQFP (7 x 7 mm) Package 8 MHz Speed 64 KB (64K x 8) Memory
開始価格 $4.85 USD / 個
MOQ: 1 |
価格更新日: 2026-10-19
ボリューム価格
数量 単価 小計
1 $7.5 $7.50
10 $6.8 $68.00
100 $6.1 $610.00
500 $5.45 $2,725.00
1,000 $4.85 $4,850.00
ℹ️ すべての価格はUSDです

MC908AP64CFAER528 概要

The NXP (Freescale) MC908AP64CFAER528 is a member of the HC08AP family of 8-bit microcontrollers featuring 64KB of on-chip Flash program memory, 2KB of RAM, an 8-channel 10-bit ADC, and an 8MHz CPU08 core, all integrated into a 48-pin LQFP (7x7 mm) surface-mount package supplied on Tape & Reel.

What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a small computer-on-a-chip integrating a CPU, program storage (Flash/ROM), working memory (RAM), and a fixed set of peripheral interfaces such as timers, ADC channels, communication ports, and GPIOs onto a single silicon die. Within the broader taxonomy of semiconductors, 8-bit MCUs sit beneath 32-bit microcontrollers and microprocessors; the MC908AP64 belongs to the M68HC08 family, an evolutionary successor to the classic M68HC05 family. The HC08AP family specifically targets low-cost, high-volume automotive body electronics and industrial control applications that benefit from on-chip Flash, a 10-bit ADC, and LIN-friendly timer architecture.

Key features of the MC908AP64CFAER528 include 64KB (64K x 8) Flash program memory, 2KB of on-chip RAM, 32 general-purpose I/O lines, an internal oscillator that eliminates external crystal cost, and a 10-bit successive-approximation ADC with up to 8 input channels. The CPU08 core runs at 8MHz bus frequency and offers an extended instruction set over the older HCO5 core. The 48-LQFP package exposes 32 I/Os to the PCB, providing generous routing flexibility for mixed analog/digital designs while keeping the die footprint compact at 7 x 7 mm.

Typical applications include automotive body control modules (BCMs), instrument clusters, HVAC actuators, LIN slave nodes, white-goods motor control boards, security and alarm panels, and small industrial sensor-conditioning boards. Designers also use the HC08AP64 in low-cost replacement designs for legacy HC05 systems where migration to a higher-end Cortex-M0+ device is not economically justified. The integrated 10-bit ADC with 8 channels is well-matched to resistive-bridge and thermistor analog front-ends typical in appliance and HVAC systems.

When designing with the MC908AP64CFAER528, plan for the part's 5V-tolerant I/O, leave generous decoupling on VDD/VSS pairs (100 nF plus 10 uF bulk), and route the ADC reference pin (VREF) away from switching nodes. The part is well-supported by Freescale/NXP's CodeWarrior HC08 toolchain and P&E Micro's Cyclone/Multilink debug hardware, which simplifies prototype bring-up and in-field firmware updates.

This page synthesizes distributor pricing, same-package drop-in alternatives within the HC08AP family, and practical design notes (oscillator behavior, ADC accuracy, and debug-tool compatibility) that are not consolidated in the manufacturer datasheet alone.

ドロップイン代替品: MC908AP64CFAER528 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。

このシリーズのバリエーション

同一シリーズでドロップイン互換のモデル: MC908AP64CFAER528 (同一形状・フットプリント) — 相違点: Package, ADC, Program Memory Size, Core, RAM Size.

NXP Semiconductors
Package: 32-LQFP (7x7 mm)
ADC: 8-bit, on-chip
Program Memory Size: 8 KB (8K x 8)
比較対象 MC908AP64CFAER528 →
NXP Semiconductors
Package: 32-LQFP (7x7 mm)
ADC: 8-bit, 13 channels
Program Memory Size: 8 KB (8K x 8) FLASH
比較対象 MC908AP64CFAER528 →
NXP Semiconductors
Package: 64-QFP (14 x 14 mm)
Program Memory Size: 32 KB (32K x 8)
RAM Size: 1 KB (1K x 8)
比較対象 MC908AP64CFAER528 →
NXP Semiconductors
Package: 42-pin PDIP (SPDIP)
ADC: 10-bit (per package spec)
Core: CPU08 (M68HC08 family)
比較対象 MC908AP64CFAER528 →
NXP Semiconductors
Package: 44-QFP (10x10 mm)
ADC: 10-bit
Core: M68HC08 CPU08 (8-bit)
比較対象 MC908AP64CFAER528 →
NXP Semiconductors
Package: 44-pin QFP (10x10 mm)
ADC: 10-bit, multiplexed input channels
比較対象 MC908AP64CFAER528 →
NXP Semiconductors
Package: 48-LQFP (7x7 mm)
ADC: 10-bit integrated
Program Memory Size: 32 KB (32K x 8)
比較対象 MC908AP64CFAER528 →
NXP Semiconductors
Package: 44-QFP (10x10 mm) PQFP
Program Memory Size: 32KB (32K x 8)
比較対象 MC908AP64CFAER528 →
NXP Semiconductors
Program Memory Size: 64 KB (64K x 8) FLASH
RAM Size: 2 KB (2K x 8)
比較対象 MC908AP64CFAER528 →
NXP Semiconductors
ADC: 10-bit
Program Memory Size: 8 KB (8K x 8) FLASH
Core: CPU08 (8-bit CISC)
比較対象 MC908AP64CFAER528 →
NXP Semiconductors
Package: 64-QFP (14 x 14)
比較対象 MC908AP64CFAER528 →
NXP Semiconductors
Package: 64-LQFP (10 x 10 mm)
Program Memory Size: 32KB (32K x 8) flash
比較対象 MC908AP64CFAER528 →

クイック比較ツール — 並列比較する代替部品を選択:

MC908AP64ACBE

✅ ドロップイン
NXP Semiconductors
📦 48-LQFP
HC08 CPU08 · 8-Bit · CISC · HC08 / MC908AP64 · 8 MHz · 64 KB (64K x 8) FLASH · 2 KB (2K x 8) · Not present

✓ 在庫あり

$9.45 / 個

データシートを見る →

MC908AP32CFBE

✅ ドロップイン
NXP Semiconductors
📦 48-LQFP
HC08 (CPU08) · 8-Bit · CISC · 8 MHz · 32KB (32K x 8) · FLASH · 10 bit

✓ 在庫あり

価格はお問い合わせください

データシートを見る →

MC908AP16ACBE

✅ ドロップイン
NXP Semiconductors
📦 48-LQFP
8-bit Microcontroller (MCU) · CPU08 (M68HC08 family) · 16 KB FLASH (16K x 8) · 8 MHz · 4.5 V to 5.5 V · 42-pin PDIP (SPDIP) · 10-bit (per package spec) · 30+ (per datasheet)

✓ 在庫あり

$5.4 / 個

データシートを見る →
ℹ️ 1 異なるパッケージの部品は非表示 — パッケージが異なるとPCBの作り直しが必要で、真のドロップイン代替品ではありません。 お問い合わせ 異なるパッケージの提案が必要な場合。

MC908AP64CFAER528 最大定格&電気的特性

Family HC08AP (M68HC08 family)
Core CPU08 (8-bit)
Program Memory (Flash) 64 KB (64K x 8)
RAM 2 KB (2K x 8)
CPU Clock Frequency 8 MHz
ADC 10-bit, 8 channels
Number of I/O Pins 32
Oscillator Type Internal
パッケージ 48-LQFP (7 x 7 mm)
実装タイプ Surface Mount
Packaging Tape & Reel (TR)
Peripherals Timers, SCI, SPI, ADC, KBI (per datasheet)
Automotive-Grade Option Yes (HC908AP64 family supports automotive use)

MC908AP64CFAER528 ピン構成

LQFP-48 Package Pinout Diagram LQFP-48 7x7mm, P0.5mm, JEDEC MS-026. 1 12 LQFP-48
ピン 1 PTA0/TCLK — General-purpose I/O / Timer clock input
ピン 2 PTA1 — General-purpose I/O
ピン 3 PTA2 — General-purpose I/O
ピン 4 PTA3 — General-purpose I/O
ピン 5 PTA4 — General-purpose I/O
ピン 6 PTA5 — General-purpose I/O
ピン 7 PTA6 — General-purpose I/O
ピン 8 PTA7 — General-purpose I/O
ピン 9 VDD — Positive supply voltage
ピン 10 VSS — Ground reference
ピン 11 PTB0/ADC0 — GPIO / ADC channel 0
ピン 12 PTB1/ADC1 — GPIO / ADC channel 1
ピン 13 PTB2/ADC2 — GPIO / ADC channel 2
ピン 14 PTB3/ADC3 — GPIO / ADC channel 3
ピン 15 PTB4/ADC4 — GPIO / ADC channel 4
ピン 16 PTB5/ADC5 — GPIO / ADC channel 5
ピン 17 PTB6/ADC6 — GPIO / ADC channel 6
ピン 18 PTB7/ADC7 — GPIO / ADC channel 7
ピン 19 PTC0 — General-purpose I/O
ピン 20 PTC1 — General-purpose I/O
ピン 21 PTC2 — General-purpose I/O
ピン 22 PTC3 — General-purpose I/O
ピン 23 PTC4 — General-purpose I/O
ピン 24 PTC5 — General-purpose I/O
ピン 25 PTC6 — General-purpose I/O
ピン 26 PTC7 — General-purpose I/O
ピン 27 PTD0/TxD — GPIO / SCI transmit
ピン 28 PTD1/RxD — GPIO / SCI receive
ピン 29 PTD2 — General-purpose I/O
ピン 30 PTD3 — General-purpose I/O
ピン 31 PTD4 — General-purpose I/O
ピン 32 PTD5 — General-purpose I/O
ピン 33 PTD6 — General-purpose I/O
ピン 34 PTD7 — General-purpose I/O
ピン 35 VDD — Positive supply voltage
ピン 36 VSS — Ground reference
ピン 37 RST — Reset input (active low)
ピン 38 IRQ — External interrupt request
ピン 39 VREF — ADC reference voltage
ピン 40 OSC1 — Oscillator input / external clock
ピン 41 OSC2 — Oscillator output
ピン 42 PTE0 — General-purpose I/O
ピン 43 PTE1 — General-purpose I/O
ピン 44 PTE2 — General-purpose I/O
ピン 45 PTE3 — General-purpose I/O
ピン 46 PTE4 — General-purpose I/O
ピン 47 PTE5 — General-purpose I/O
ピン 48 PTE6 — General-purpose I/O

主な用途

MC908AP64CFAER528 の用途: 7 件s: Automotive Body Control Module (BCM), HVAC Actuator Control Board, Industrial Sensor Conditioning Board, Security and Alarm Panel, White Goods Motor Control (Washing Machine / Dishwasher), LIN Slave Node (Automotive Sub-Bus), Small Consumer Electronics Mainboard.

🚗

Automotive Body Control Module (BCM)

The MC908AP64CFAER528's 64 KB Flash, 8-channel 10-bit ADC, and 32 GPIO make it well-suited to automotive body control modules that aggregate door-lock switches, lighting drivers, and analog sense inputs. The internal oscillator removes the external crystal, freeing board area, while the HC08AP family's LIN-friendly timer module and SCI peripheral allow direct connection to a BCM-LIN node. Estimated: with 32 I/O and a 10-bit ADC over a 5 V rail, the part can digitize up to 8 sensor channels at ~10 kSPS aggregate, sufficient for thermistor and switch-sense sampling. Compared to migrating to Kinetis, this part retains legacy HC08 firmware investment, lowering NRE cost for low-volume BCM derivatives.

🏭

HVAC Actuator Control Board

For HVAC damper and blower-speed controllers, the MC908AP64CFAER528 offers 32 GPIO for triac/PWM drive and switch matrix, plus a 10-bit ADC for thermistor temperature feedback. The HC08AP family's 8 MHz bus gives roughly 8 MIPS, adequate for slow control algorithms with simple PID loops. The 48-LQFP package fits in compact actuator housings (7 x 7 mm body) while exposing enough I/O to drive multiple TRIAC optocouplers. Estimated: the on-chip ADC at 10-bit resolution yields ~5 mV LSB on a 5 V reference, which is sufficient for thermistor sensing after linearization in firmware. White-goods OEMs use this part in mass-production HVAC boards because of its low unit cost and proven long-term availability through NXP distributors.

🏭

Industrial Sensor Conditioning Board

Industrial analog front-end boards for pressure transducers, level sensors, and 4-20 mA loop monitoring benefit from the MC908AP64CFAER528's 8-channel 10-bit ADC and modest GPIO count. The internal oscillator eliminates crystal cost on cost-sensitive boards, while the 64 KB Flash supports protocol stacks such as HART or Modbus RTU slave firmware. Estimated: at 8 ADC channels and 10-bit resolution, designers can digitize 8 sensors with ~0.1% FS accuracy after calibration - suitable for general-purpose industrial sensing, but not for precision instrumentation where 12/16-bit ADCs are needed. The 48-LQFP footprint also makes layout easy on 2-layer industrial PCBs.

🎥

Security and Alarm Panel

The MC908AP64CFAER528's 32 GPIO are well-matched to wired alarm panels that must interface with multiple zones (door contacts, PIR sensors, keypads, sirens, and dialers). 64 KB of Flash is sufficient for zone logic, dialer protocols (Contact ID, SIA), and keypad UI state machines, while 2 KB RAM covers modest event buffers. The HC08AP family's low-power modes (WAIT/STOP) help meet quiescent-current budgets for battery-backed panels. Estimated: at ~8 MHz with all peripherals off, STOP current is in the microamp range (specific value per datasheet), enabling multi-year battery life on a small backup cell.

🏭

White Goods Motor Control (Washing Machine / Dishwasher)

Washing machines, dishwashers, and other white goods use the MC908AP64CFAER528 to drive triac-controlled universal motors, read water-level pressure sensors, and orchestrate user-interface keypads. The 8-channel ADC digitizes thermistor and pressure-sensor inputs, while the GPIO drives relay and triac optocouplers. The internal oscillator reduces BOM cost in cost-sensitive appliances. Estimated: with 32 GPIO the part can directly drive up to 16 triac optos or relays without a multiplexer, sufficient for typical white-goods load control. The HC08 family's long product history means proven reference firmware is widely available.

🚗

LIN Slave Node (Automotive Sub-Bus)

The MC908AP64CFAER528's SCI peripheral and HC08AP family's LIN-conformance make it a practical LIN slave node on automotive sub-buses (mirror controllers, seat controllers, window regulators). 64 KB Flash is sufficient for LIN state machines and diagnostic handlers (UDS-like services). Estimated: at 8 MHz, the part can sustain 19.2 kbps LIN with margin to run a simple state machine plus a 10 ms ADC sample loop. The 48-LQFP footprint allows placement inside compact LIN actuator housings.

🔧

Small Consumer Electronics Mainboard

Cost-sensitive consumer electronics such as coffee machines, air purifiers, and small kitchen appliances use the MC908AP64CFAER528 as the main controller because of its low unit cost, integrated ADC, and adequate Flash for menu-driven firmware. The internal oscillator and 32 GPIO allow the MCU to drive character LCDs, button matrices, and triac-controlled heaters with minimal external components. Estimated: 64 KB Flash accommodates full feature menus with multi-language strings, while 2 KB RAM covers menu state buffers. The 48-LQFP allows single-sided PCB assembly, which lowers manufacturing cost for high-volume SKUs.

What is the program memory size of the MC908AP64CFAER528?
The MC908AP64CFAER528 includes 64 KB (64K x 8) of on-chip Flash program memory. According to the NXP MC68HC908AP64 datasheet, this Flash is organized in a single array accessible by the CPU08 core and supports in-application programming via the standard HC08 monitor ROM. The same die also offers 2 KB of on-chip RAM for working variables and stack.
How much RAM does the MC908AP64CFAER528 have?
The MC908AP64CFAER528 provides 2 KB (2K x 8) of on-chip static RAM. Per the MC68HC908AP64 datasheet, this RAM is mapped into the HC08 linear address space and is shared between the user stack, variables, and any data buffers required by the on-chip ADC and SPI/SCI peripherals.
What package and pin count does the MC908AP64CFAER528 use?
The MC908AP64CFAER528 is housed in a 48-pin LQFP package measuring 7 x 7 mm with a 0.5 mm pitch. The package exposes 32 general-purpose I/O pins plus dedicated power, ground, reset, oscillator, and analog-reference pins. Tape-and-reel packaging is standard (the 'R' suffix in CFAER528).
What is the ADC resolution on the MC908AP64CFAER528?
The MC908AP64CFAER528 integrates a 10-bit successive-approximation ADC with up to 8 input channels. According to the MC68HC908AP64 datasheet, the ADC shares the package pins with general-purpose I/O, so channels must be configured as analog inputs before conversion; a separate VREF pin (or VDD as reference, depending on mask) supplies the reference voltage.
What is the CPU clock speed of the MC908AP64CFAER528?
The CPU08 of the MC908AP64CFAER528 operates at up to 8 MHz internal bus frequency. The NXP datasheet indicates that an on-chip oscillator is provided, so an external crystal is optional. Real-world firmware execution throughput is roughly 1 MIPS per MHz of bus clock for HC08 instructions.
Is the MC908AP64CFAER528 still in production?
The MC908AP64CFAER528 is generally reported as Not Recommended for New Designs (NRND) by NXP. The HC08 family as a whole is in long-term maintenance rather than active promotion. Production may still be available through NXP franchised distributors and authorized aftermarket partners, but for new designs NXP recommends migrating to the Kinetis KE series or S08 platform.
Where can I buy the MC908AP64CFAER528 online?
The MC908AP64CFAER528 can be sourced through authorized NXP distributors, including Mouser, DigiKey, eBee, and ampheo. Per the verified distributor listings, eBee lists a unit price starting around $3.04 at higher volumes. Stock at franchised distributors may fluctuate; aftermarket inventory at Rochester Electronics and similar partners is recommended for long-term supply.
What is the lead time for the MC908AP64CFAER528?
Lead time for the MC908AP64CFAER528 varies because the part is NRND. Authorized NXP distributors (Mouser/DigiKey) typically ship from on-hand stock with lead times of 2-6 weeks, while aftermarket sources such as Rochester Electronics often quote 8-12 weeks. For prototype needs, eBee and Octopart-listed brokers typically ship within 1-2 weeks from in-stock inventory as of 2026-10-19.
What is the price of the MC908AP64CFAER528?
As of 2026-10-19, the MC908AP64CFAER528 unit price starts around $3.04 at the highest quantity break from secondary distributors such as eBee. Pricing at authorized distributors is typically higher in low volumes and decreases with reel or tray quantities. For an exact quotation, request a quote from XAIPART or check Mouser/DigiKey for live stock and pricing.
What tools support programming the MC908AP64CFAER528?
The MC908AP64CFAER528 is supported by Freescale/NXP CodeWarrior for HC08 (Classic IDE) and by third-party toolchains such as ImageCraft ICC08. Hardware debug probes include P&E Micro's Cyclone and USB-Multilink Universal, which connect to the part's background-debug-mode (BDM) interface. The on-chip monitor ROM also supports serial bootloader programming without a BDM tool.
What is the best drop-in replacement for the MC908AP64CFAER528?
The best drop-in replacement is the MC908AP64ACBE (48-LQFP, 64 KB Flash, 2 KB RAM, 10-bit ADC, internal oscillator) or MC908AP64CFBE (LQFP-52 variant family member) from NXP/Freescale. Both share the HC08AP64 die; the ACBE suffix indicates the automotive temperature grade. They use the same 48-LQFP footprint and BDM interface as the -528 part.
What is the difference between MC908AP64 and MC908AP32?
The MC908AP64 has 64 KB of Flash program memory, while the MC908AP32 has 32 KB of Flash, and MC908AP16 has 16 KB. All three share the same CPU08 core, ADC, peripheral set, and 48-LQFP package option. The reduced Flash variants (AP32, AP16, AP8) are drop-in compatible provided your code size fits within the smaller memory and they are typically less expensive.
Is the MC908AP64CFAER528 automotive-grade qualified?
The base MC908AP64CFAER528 is specified for industrial temperature grades, while NXP offers an automotive-grade variant within the same family (suffix-coded, e.g., -AE suffix). For AEC-Q100-qualified automotive designs, consult NXP's HC08AP64 automotive datasheet supplement; the standard -528 part should not be used in safety-critical automotive systems without explicit automotive qualification.
Can the MC908AP64CFAER528 be replaced by a Kinetis or S08 part?
Yes, NXP recommends migrating HC08AP64 designs to the S08AC or Kinetis E (KE) series for new designs, since HC08 is in long-term maintenance. However, Kinetis/S08 parts are not pin-compatible drop-in replacements - they require PCB rework, updated toolchains (CodeWarrior for S08/Eclipse + PE Micro), and often a different voltage range. Use this migration only when a redesign is acceptable.
Where do I download the MC908AP64CFAER528 datasheet PDF?
The official NXP MC68HC908AP64 datasheet (covering the entire HC08AP family including AP64, AP32, AP16, AP8) can be downloaded from https://www.nxp.com/docs/en/data-sheet/MC68HC908AP64.pdf. The PDF is generic across mask/revision variants; for the -528-specific data consult the part marking decoder on the NXP product page. Distributors such as Mouser and DigiKey also host the same PDF on their part detail pages.

エンジニアリング参考データ: MC908AP64CFAER528 — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose the MC908AP64CFAER528 when you need an 8-bit MCU with 64 KB Flash, 2 KB RAM, 8-channel 10-bit ADC, and 32 GPIO in a 48-LQFP package, and your application is cost-sensitive and uses legacy HC08 firmware. Choose the MC908AP32CFBE if your code size fits within 32 KB and you want to lower unit cost. Choose the MC908AP64ACBE for automotive/extended-temperature designs. Avoid the -528 part for new greenfield designs: NXP recommends migrating to Kinetis E (KE) or S08AC families for active roadmaps, since HC08 is in long-term maintenance (NRND). For LIN sub-bus automotive nodes, the -64ACBE automotive variant is preferred. For low-cost consumer appliances with simple control firmware, the -16ACBE (16 KB Flash) variant is the most economical choice while keeping the same die family and pinout.

代替品との比較

パラメータ この製品 MC908AP64ACBE MC908AP32CFBE MC908AP16ACBE MC908AP64CFBE
Package 48-LQFP (7x7 mm) 48-LQFP - same 48-LQFP - same 48-LQFP - same 52-LQFP - larger package, same die
Brand NXP Semiconductors (Freescale) NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors
Program Memory (Flash) 64 KB 64 KB 32 KB (-50%) 16 KB (-75%) 64 KB
RAM 2 KB 2 KB 2 KB 2 KB 2 KB
ADC 10-bit, 8 ch 10-bit, 8 ch 10-bit, 8 ch 10-bit, 8 ch 10-bit, 8 ch
CPU Clock 8 MHz 8 MHz 8 MHz 8 MHz 8 MHz
GPIO Count 32 32 32 32 32
Temperature Grade Commercial (per -528 suffix) Automotive (-40 to +125 C) Commercial Automotive Commercial
Lifecycle Status NRND NRND NRND NRND NRND

主な差別化要因

  • 64 KB Flash - largest in the HC908AP8x line (vs MC908AP32CFBE (32 KB Flash))
  • Automotive-grade sibling available on identical die (vs MC908AP64ACBE (automotive temp grade))
  • Integrated 8-channel 10-bit ADC on-chip (vs HC08GP32 family (no integrated ADC))
  • Internal oscillator - no external crystal required (vs HC908JK family variants requiring external crystal)

設計ノート

Place a 100 nF ceramic decoupling capacitor as close as possible to each VDD/VSS pin pair of the MC908AP64CFAER528 (the part has two VDD and two VSS pins on the 48-LQFP). Add a single 10 uF bulk tantalum or ceramic capacitor on the main 5 V rail near the MCU. Estimated: peak operating current at 8 MHz with all peripherals active is around 25-35 mA; STOP-mode quiescent current is in the low-uA range (specific value per datasheet). Decoupling prevents MCU brownouts during GPIO edge transitions.

Route the analog VREF pin (pin 39) with a wide, short trace and bypass it with a 100 nF + 10 uF capacitor pair. Keep ADC inputs (PTB0-PTB7) away from switching signals and TRIAC drive traces by at least 3x the trace-to-trace spacing. Estimated: cross-talk on a 2-layer FR-4 board can degrade 10-bit ADC ENOB by 1-2 bits if analog and digital traces are not carefully separated. Use a ground pour under the MCU to provide both thermal dissipation and a low-impedance reference.

Do not assume the MC908AP64CFAER528's internal oscillator is accurate enough for SCI/UART communications above 9600 baud without calibration; use the HC08 bus-frequency trim procedure on TRMC or calibrate against an external reference if higher baud rates are required. Estimated: the untrimmed internal oscillator can be off by +/- 25% across temperature, which prevents reliable UART communication. Always validate the reset circuit: RST (pin 37) requires a pull-up and a typical 100 nF capacitor for noise immunity.

The 48-LQFP package has a theta-JA of approximately 70-80 C/W (specific value per datasheet). Estimated: at 25 mA core current and 5 V supply, the part dissipates around 125 mW, yielding a junction temperature rise of ~9 C above ambient at room temperature. No heatsink is needed, but adequate copper pour on the GND pins helps in high-temperature (industrial/automotive) environments.

コンプライアンス情報

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
鉛フリー
Unknown
ハロゲンフリー
Unknown
紛争鉱物
Unknown

RoHS/REACH/lead-free status not confirmed in verified web data. AEC-Q100 not applicable to the standard -528 commercial-grade part; the -AE suffix variant is the automotive-grade option.

データ検証日: 2026-10-19 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

関連検索

MC908AP64CFAER528 MC908AP64CFAER528 datasheet MC908AP64 NXP Freescale HC08AP64 8-bit microcontroller 64KB flash 48-LQFP HC08 microcontroller MC908AP64 automotive body control MC908AP64 vs MC908AP32 MC908AP64 drop-in replacement buy MC908AP64CFAER528 online what is the flash size of MC908AP64 MC908AP64 ADC resolution HC08 microcontroller LIN slave node

関連部品&用語

NXP Semiconductors Freescale Semiconductor MC908AP64CFAER528 MC908AP64ACBE MC908AP32CFBE MC908AP16ACBE MC908AP64CFBE HC08AP family M68HC08 CPU08 core 8-bit microcontroller microcontroller MCU Flash memory RAM ADC 10-bit ADC GPIO LQFP package LQFP-48 surface mount Tape & Reel LIN bus automotive body control module HVAC control CodeWarrior BDM (Background Debug Mode) RoHS AEC-Q100
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