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AT89C55WD-24PU Tech Specifications

Category Embedded - Microcontrollers
Manufacturer Microchip
Factory Lead Time 12 Weeks
Mount Through Hole
Mounting Type Through Hole
Package / Case 40-DIP (0.600, 15.24mm)
Number of Pins 40Pins
Supplier Device Package 40-PDIP
Memory Types FLASH
Number of I/Os 32I/Os
Watchdog Timers Yes
Operating Temperature -40°C~85°C TA
Packaging Tube
Series 89C
Published 1996
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
Nominal Supply Current 25mA
Speed 24MHz
RAM Size 256 x 8
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
Access Time 24 μs
Data Bus Width 8b
Number of Timers/Counters 3Timers/Counters
Address Bus Width 8b
Core Architecture 8051
Max Frequency 24MHz
Number of Programmable I/O 32Programmable I/Os
Number of UART Channels 1UART Channel
Height 4.826mm
Length 52.58mm
Width 13.97mm
REACH SVHC No SVHC
Radiation Hardening No
RoHS Status ROHS3 Compliant
Lead Free Lead Free
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