AT89C51RB2-RLRUL is Obsolete and no longer manufactured.
Available Substitutes:

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Microchip Technology
In Stock: 476
Unit Price: 6,60000 €
Datasheet
80C51 89C Microcontroller IC 8-Bit 40MHz 16KB (16K x 8) FLASH 44-VQFP (10x10)
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80C51 89C Microcontroller IC 8-Bit 40MHz 16KB (16K x 8) FLASH 44-VQFP (10x10)
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AT89C51RB2-RLRUL

DigiKey Part Number
AT89C51RB2-RLRULTR-ND - Tape & Reel (TR)
Manufacturer
Manufacturer Product Number
AT89C51RB2-RLRUL
Description
IC MCU 8BIT 16KB FLASH 44VQFP
Customer Reference
Detailed Description
80C51 89C Microcontroller IC 8-Bit 40MHz 16KB (16K x 8) FLASH 44-VQFP (10x10)
Datasheet
 Datasheet
Product Attributes
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Category
Number of I/O
32
Mfr
Program Memory Size
Series
Program Memory Type
FLASH
Packaging
Tape & Reel (TR)
RAM Size
1.25K x 8
Part Status
Obsolete
Voltage - Supply (Vcc/Vdd)
2.7V ~ 3.6V
DigiKey Programmable
Not Verified
Oscillator Type
External
Core Processor
80C51
Operating Temperature
-40°C ~ 85°C (TA)
Core Size
8-Bit
Mounting Type
Surface Mount
Speed
40MHz
Supplier Device Package
44-VQFP (10x10)
Connectivity
SPI, UART/USART
Package / Case
44-LQFP
Peripherals
POR, PWM, WDT
Base Product Number
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (1)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
AT89C51RB2T-RLRULMicrochip Technology476150-AT89C51RB2T-RLRULCT-ND6,60000 €Similar
Obsolete
This product is no longer manufactured. View Substitutes