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AT89C55WD-24PU
Microchip TechnologyRoHS 
RoHS compliant
RoHS compliantPackage 40-DIP (0.600, 15.24mm)
Category Embedded - Microcontrollers / Embedded - Microcontrollers
Description
MCU 8-bit AT89 8051 CISC 20KB Flash 5V 40-Pin PDIP
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Inventory: 18
Minimum: 1
Total Price: USD $8.06
Unit Price: USD $8.05505
≥1 USD $8.05505
≥10 USD $6.60915
≥30 USD $6.403
Technical Details
Supply Chain
Factory Lead Time 12 Weeks
Physical
Mount Through Hole
Mounting Type Through Hole
Package / Case 40-DIP (0.600, 15.24mm)
Number of Pins 40
Supplier Device Package 40-PDIP
Technical
Operating Temperature -40°C~85°C TA
Packaging Tube
Published 1996
Series 89C
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Termination Through Hole
Max Operating Temperature 85°C
Min Operating Temperature -40°C
Frequency 33MHz
Base Part Number AT89C55
Operating Supply Voltage 5V
Interface UART, USART
Max Supply Voltage 5.5V
Min Supply Voltage 4V
Memory Size 20kB
Oscillator Type Internal
Number of I/O 32
Nominal Supply Current 25mA
Speed 24MHz
RAM Size 256 x 8
Memory Type FLASH
Voltage - Supply (Vcc/Vdd) 4.5V~5.5V
Core Processor 8051
Peripherals WDT
Program Memory Type FLASH
Core Size 8-Bit
Program Memory Size 20KB 20K x 8
Connectivity UART/USART
Watchdog Timer Yes
Access Time 24 μs
Data Bus Width 8b
Number of Timers/Counters 3
Address Bus Width 8b
Core Architecture 8051
Max Frequency 24MHz
Number of Programmable I/O 32
Number of UART Channels 1
Dimensions
Height 4.826mm
Length 52.58mm
Width 13.97mm
Compliance
Radiation Hardening No
REACH SVHC No SVHC
RoHS Status ROHS3 Compliant
Lead Free Lead Free
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