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AT89S8252-24JI
Microchip Technology
IC MCU 8BIT 8KB FLASH 44PLCC
1381 Pcs New Original In Stock
8051 89S Microcontroller IC 8-Bit 24MHz 8KB (8K x 8) FLASH 44-PLCC (16.6x16.6)
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (250 Ratings)
AT89S8252-24JI
Product Overview
1281686
DiGi Electronics Part Number
AT89S8252-24JI-DGManufacturer
Microchip Technology
AT89S8252-24JI
Description
IC MCU 8BIT 8KB FLASH 44PLCCInventory
1381 Pcs New Original In Stock
8051 89S Microcontroller IC 8-Bit 24MHz 8KB (8K x 8) FLASH 44-PLCC (16.6x16.6)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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AT89S8252-24JI Technical Specifications
Category
Embedded, Microcontrollers
Packaging
-
Series
89S
Product Status
Obsolete
DiGi-Electronics Programmable
Not Verified
Core Processor
8051
Core Size
8-Bit
Speed
24MHz
Connectivity
SPI, UART/USART
Peripherals
POR, WDT
Number of I/O
32
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
EEPROM Size
2K x 8
RAM Size
256 x 8
Voltage - Supply (Vcc/Vdd)
4V ~ 6V
Data Converters
-
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Supplier Device Package
44-PLCC (16.6x16.6)
Package / Case
44-LCC (J-Lead)
Base Product Number
AT89S8252
Datasheet & Documents
HTML Datasheet
AT89S8252-24JI-DG
Environmental & Export Classification
RoHS Status
RoHS non-compliant
Moisture Sensitivity Level (MSL)
2 (1 Year)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.31.0001
Additional Information
Other Names
AT89S825224JI
Standard Package
27
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Livraison express et emballage robuste, satisfaction totale.
de desembre 02, 2025
Ich bin begeistert vom Engagement für sichere Verpackungen und Termintreue.
de desembre 02, 2025
迅速な物流手配により、必要なときに間に合うように商品を入手できました。
de desembre 02, 2025
The delivery was prompt, and the packaging was top-notch.
de desembre 02, 2025
DiGi Electronics consistently provides prompt service that I trust.
de desembre 02, 2025
DiGi Electronics’ products are built to last and perform flawlessly, making my projects smoother and more enjoyable.
de desembre 02, 2025
Their packaging is comprehensive, and I was pleased to see the product well protected from potential damage.
de desembre 02, 2025
Fast and efficient shipping means I always have my tools ready when I need them, which is a huge plus.
de desembre 02, 2025
The staff at DiGi Electronics are very approachable and professional.
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Frequently Asked Questions (FAQ)
Can the AT89S8252-24JI be safely replaced with the AT89S8253-24JU in an existing 8051-based design without firmware changes?
While the AT89S8253-24JU is listed as a substitute, it is not a drop-in replacement due to architectural differences: the AT89S8253 has a dual-data pointer and enhanced timer modes that may alter timing-sensitive code, and its flash memory organization differs slightly. Firmware validation is required, especially for bootloader and interrupt handling routines. Additionally, the AT89S8253-24JU uses a 44-PLCC package like the AT89S8252-24JI, so PCB compatibility is maintained, but pin functions should be verified against the schematic to avoid signal conflicts.
What are the key reliability risks when designing with the AT89S8252-24JI given its obsolete status and RoHS non-compliance?
The AT89S8252-24JI is obsolete and no longer recommended for new designs, posing long-term supply chain risks and potential end-of-life (EOL) shortages. Its RoHS non-compliant status may restrict use in regulated markets like the EU unless exempted under specific directives. Designers should implement lifetime buy strategies or migrate to modern equivalents like the AT89LP series. Additionally, long-term reliability under high-temperature operation (near 85°C) may degrade faster than newer silicon due to older fabrication processes, so derating and thermal monitoring are advised.
How does the external oscillator requirement of the AT89S8252-24JI impact PCB layout and signal integrity in high-noise industrial environments?
Since the AT89S8252-24JI requires an external oscillator, careful PCB layout is critical: the crystal or resonator should be placed as close as possible to XTAL1 and XTAL2 pins, with short, symmetrical traces and a grounded guard ring to minimize EMI coupling. Avoid routing high-speed digital lines near the oscillator circuit. In industrial settings with high electrical noise, consider using a canned oscillator module instead of a passive crystal to improve jitter performance and reduce susceptibility to electromagnetic interference, which can cause timing drift or resets.
Can the AT89S8252-24JI’s 2K internal EEPROM be used reliably for frequent data logging, and what endurance precautions should be taken?
The 2K x 8 internal EEPROM in the AT89S8252-24JI supports approximately 100,000 write cycles per byte, which may be insufficient for high-frequency logging applications. To extend lifespan, implement wear-leveling algorithms in firmware and buffer writes in RAM before committing to EEPROM. Avoid writing to the same address repeatedly—rotate across memory locations. For mission-critical logging, consider offloading data to external non-volatile memory (e.g., I²C FRAM or SPI Flash), as the internal EEPROM is not optimized for continuous write workloads.
What design constraints should be considered when powering the AT89S8252-24JI in a 5V system with brown-out conditions, given its 4V–6V supply range?
Although the AT89S8252-24JI operates from 4V to 6V, operating near the lower limit (4V) increases susceptibility to brown-out resets during voltage dips. The internal Power-On Reset (POR) and Watchdog Timer (WDT) help, but they may not trigger reliably below 4.5V. To mitigate risk, use a precision voltage supervisor IC (e.g., MCP112-460) to assert reset during undervoltage events. Additionally, ensure power supply decoupling with 100nF ceramic capacitors near Vcc pins and consider a bulk capacitor (10–100µF) to sustain voltage during transient loads, especially in motor or relay-driven systems.
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.
AT89S8252-24JI CAD Models
Microchip Technology AT89S8252-24JI PCB symbols & footprints
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