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MC908JK3ECDWE
NXP USA Inc.
IC MCU 8BIT 4KB FLASH 20SOIC
19063 Pcs New Original In Stock
HC08 HC08 Microcontroller IC 8-Bit 8MHz 4KB (4K x 8) FLASH 20-SOIC
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5.0 / 5.0
- (111 Ratings)
MC908JK3ECDWE
Product Overview
7238768
DiGi Electronics Part Number
MC908JK3ECDWE-DGManufacturer
NXP USA Inc.
MC908JK3ECDWE
Description
IC MCU 8BIT 4KB FLASH 20SOICInventory
19063 Pcs New Original In Stock
HC08 HC08 Microcontroller IC 8-Bit 8MHz 4KB (4K x 8) FLASH 20-SOIC
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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MC908JK3ECDWE Technical Specifications
Category
Embedded, Microcontrollers
Packaging
Tube
Series
HC08
Product Status
Not For New Designs
DiGi-Electronics Programmable
Not Verified
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
-
Peripherals
LED, LVD, POR, PWM
Number of I/O
15
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
EEPROM Size
-
RAM Size
128 x 8
Voltage - Supply (Vcc/Vdd)
2.7V ~ 3.3V
Data Converters
A/D 12x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Supplier Device Package
20-SOIC
Package / Case
20-SOIC (0.295", 7.50mm Width)
Base Product Number
MC908
Datasheet & Documents
HTML Datasheet
MC908JK3ECDWE-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.31.0001
Additional Information
Other Names
935313527574
MC908JK3ECDWE-CRL
Q14033824
Standard Package
38
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
저는 디지에서 구매할 때마다 제품이 기대 이상이며 가격 역시 언제나 명확해서 좋아요.
de desembre 02, 2025
The combination of budget-friendly prices and eco-friendly packaging keeps me loyal to DiGi Electronics.
de desembre 02, 2025
DiGi Electronics provides affordable options that don't sacrifice performance, perfect for remote work setups.
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Frequently Asked Questions (FAQ)
Can the MC908JK3ECDWE be used in a new industrial control design requiring long-term availability and RoHS compliance, given its 'Not For New Designs' status?
The MC908JK3ECDWE is marked 'Not For New Designs' by NXP, meaning it is not recommended for new product development due to potential end-of-life planning. While it is still RoHS3 compliant and currently in stock, designing it into a new industrial system introduces supply chain and longevity risks. For long-term reliability, consider migrating to a modern, actively supported 8-bit or 32-bit MCU such as the NXP S08P family (e.g., MC9S08PT60) or an ARM Cortex-M0+ based alternative. If you must use the MC908JK3ECDWE for legacy compatibility, secure a lifetime buy and implement a second-source strategy to mitigate obsolescence risk.
What are the critical power supply design considerations when replacing a 5V TTL-based microcontroller with the MC908JK3ECDWE in an existing 3.3V system?
The MC908JK3ECDWE operates strictly within 2.7V to 3.3V, making it incompatible with 5V logic levels without level-shifting circuitry. When replacing a 5V MCU, ensure all connected peripherals (sensors, communication interfaces, etc.) are also 3.3V-tolerant or use bidirectional voltage translators on I/O lines. Additionally, the MCU’s internal pull-ups and PWM outputs may not meet 5V noise margin requirements, risking signal integrity. Always verify timing margins and use Schmitt-trigger inputs where noise immunity is critical. A clean, low-noise 3.3V rail with proper decoupling (100nF per power pin) is essential to avoid LVD (Low Voltage Detect) resets.
How does the MC908JK3ECDWE compare to the Microchip PIC16F57-I/P in terms of real-time performance and peripheral integration for a low-cost motor control application?
The MC908JK3ECDWE offers superior integration with built-in PWM, 8-channel 8-bit ADC, and LVD—features that the PIC16F57-I/P lacks, requiring external components for similar functionality. However, the PIC16F57 runs at up to 20MHz with faster instruction cycles, providing better real-time response for time-critical motor control loops. The MC908JK3ECDWE’s 8MHz core and limited 128-byte RAM constrain complex algorithms. For simple on/off or basic speed control, the MC908JK3ECDWE reduces BOM cost and board space, but for responsive closed-loop control, the PIC16F57 or a modern alternative like the PIC16F18313 is more suitable despite higher peripheral overhead.
What are the risks of using the internal oscillator of the MC908JK3ECDWE in a temperature-variable environment, and when should an external crystal be used instead?
The MC908JK3ECDWE relies on an external oscillator; it has no internal RC oscillator, so clock stability depends entirely on the external timing component. In environments with wide temperature swings (-40°C to 85°C), a standard ceramic resonator may drift beyond acceptable limits for UART or timing-sensitive PWM applications. For reliable communication (e.g., RS-485 or sensor timing), use a temperature-compensated crystal oscillator (TCXO) or a high-stability crystal with load capacitors matched to the MCU’s specifications. Without precise timing, ADC sampling and PWM accuracy degrade, risking system malfunction in precision applications.
Is the MC908JK3ECDWE suitable for battery-powered IoT edge nodes requiring low-power sleep modes and intermittent sensor sampling?
The MC908JK3ECDWE is not optimized for ultra-low-power operation. While it supports stop and wait modes, its current consumption in sleep states is significantly higher than modern low-power MCUs like the STM32L011 or MSP430G2001. With only 128 bytes of RAM and no deep sleep with RAM retention, frequent wake-ups for sensor sampling (via its 8-bit ADC) will drain batteries quickly. Additionally, the lack of integrated low-power peripherals (e.g., autonomous ADC triggers) increases active CPU time. For battery-powered IoT nodes, consider migrating to a modern ultra-low-power MCU; the MC908JK3ECDWE is better suited for line-powered or infrequently cycled systems where power budget is less critical.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
MC908JK3ECDWE CAD Models
NXP USA Inc. MC908JK3ECDWE PCB symbols & footprints
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