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Microchip AT89C55WD-24PU

Microcontroller AT89, 8 Bit 80C51, 24MHZ, Flash 20KB, SRAM 256B, 4-5.5V, -40+85DEG.C, PDIP40

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Compliance

Lead Free
Lead Free
Radiation Hardening
No
REACH SVHC
No SVHC
RoHS
Compliant

Dimensions

Height
4.826 mm
Length
52.58 mm
Width
13.97 mm

Physical

Case/Package
PDIP
Mount
Through Hole
Number of Pins
40

Supply Chain

Lifecycle Status
Production

Technical

Access Time
24 µs
Address Bus Width
8 b
Core Architecture
8051
Data Bus Width
8 b
Frequency
33 MHz
Interface
UART, USART
Max Frequency
24 MHz
Max Operating Temperature
85 °C
Max Supply Voltage
5.5 V
Memory Size
20 kB
Memory Type
FLASH
Min Operating Temperature
-40 °C
Min Supply Voltage
4 V
Nominal Supply Current
25 mA
Number of I/Os
32
Number of Programmable I/O
32
Number of Timers/Counters
3
Number of UART Channels
1
Operating Supply Voltage
5 V
Oscillator Type
Internal
Peripherals
WDT
RAM Size
256 B
Termination
Through Hole
Watchdog Timer
Yes

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