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AT89C55WD-24JU
Microchip TechnologyRoHS 
RoHS compliant
RoHS compliantPackage 44-LCC (J-Lead)
Category Embedded - Microcontrollers / Embedded - Microcontrollers
Description
MICROCHIP - AT89C55WD-24JU - 8-Bit-MCU, 8051 Family AT89C55 Series Microcontrollers, 24 MHz, 20 KB, 256 Byte, 44 Pin(s), LCC
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Pricing & Ordering
Inventory: 2018
Minimum: 1
Total Price: USD $8.06
Unit Price: USD $8.05505
≥1 USD $8.05505
≥10 USD $6.60915
≥100 USD $6.403
≥500 USD $6.1959
≥1000 USD $5.98975
Technical Details
Supply Chain
Factory Lead Time 9 Weeks
Physical
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 44-LCC (J-Lead)
Number of Pins 44
Technical
Operating Temperature -40°C~85°C TA
Packaging Tube
Published 1996
Series 89C
JESD-609 Code e3
Pbfree Code yes
Part Status Active
Moisture Sensitivity Level (MSL) 3 (168 Hours)
Number of Terminations 44
Terminal Finish Matte Tin (Sn) - annealed
Subcategory Microcontrollers
Technology CMOS
Terminal Position QUAD
Terminal Form J BEND
Peak Reflow Temperature (Cel) 245
Supply Voltage 5V
Terminal Pitch 1.27mm
Frequency 24MHz
Time@Peak Reflow Temperature-Max (s) 40
Base Part Number AT89C55
Operating Supply Voltage 5V
Power Supplies 5V
Interface UART, USART
Memory Size 20kB
Oscillator Type Internal
Number of I/O 32
RAM Size 256 x 8
Voltage - Supply (Vcc/Vdd) 4.5V~5.5V
uPs/uCs/Peripheral ICs Type MICROCONTROLLER
Core Processor 8051
Peripherals WDT
Program Memory Type FLASH
Core Size 8-Bit
Program Memory Size 20KB 20K x 8
Connectivity UART/USART
Supply Current-Max 25mA
Bit Size 8
Watchdog Timer Yes
Access Time 24 μs
Has ADC NO
DMA Channels NO
Data Bus Width 8b
PWM Channels NO
DAC Channels NO
Number of Timers/Counters 3
Address Bus Width 8b
ROM (words) 20480
Compliance
Radiation Hardening No
REACH SVHC No SVHC
RoHS Status ROHS3 Compliant
Lead Free Lead Free
Dimensions
Height 4.064mm
Length 16.66mm
Width 16.662mm
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