PartNumber | AT89C55WD-24AU | AT89C55WD-24AC | AT89C55WD-24AI |
Description | 8-bit Microcontrollers - MCU 20K FLASH - 24MHZ | 8-bit Microcontrollers - MCU 20K FLASH - 24MHZ | 8-bit Microcontrollers - MCU 20K FLASH - 24MHZ IND TEMP |
Manufacturer | Microchip | Microchip | Microchip |
Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
RoHS | Y | N | N |
Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
Package / Case | TQFP-44 | TQFP-44 | TQFP-44 |
Series | AT89C55WD | AT89C55WD | AT89C55WD |
Core | 8051 | 8051 | 8051 |
Data Bus Width | 8 bit | 8 bit | 8 bit |
Maximum Clock Frequency | 33 MHz | 33 MHz | 33 MHz |
Program Memory Size | 20 kB | 20 kB | 20 kB |
Data RAM Size | 256 B | 256 B | 256 B |
ADC Resolution | No ADC | No ADC | No ADC |
Number of I/Os | 32 I/O | 32 I/O | 32 I/O |
Operating Supply Voltage | 4 V to 5.5 V | 4 V to 5.5 V | 4 V to 5.5 V |
Minimum Operating Temperature | - 40 C | 0 C | - 40 C |
Maximum Operating Temperature | + 85 C | + 70 C | + 85 C |
Packaging | Tray | - | - |
Height | 1.05 mm | 1.05 mm | 1.05 mm |
Length | 10.1 mm | 10.1 mm | 10.1 mm |
Product | MCU | - | - |
Program Memory Type | Flash | Flash | Flash |
Width | 10.1 mm | 10.1 mm | 10.1 mm |
Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
Data RAM Type | RAM | - | - |
Interface Type | UART | - | - |
Moisture Sensitive | Yes | - | - |
Number of Timers/Counters | 3 Timer | 3 Timer | 3 Timer |
Processor Series | AT89x | - | - |
Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
Factory Pack Quantity | 160 | 160 | 160 |
Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
Supply Voltage Min | 4 V | 4 V | 4 V |
Data ROM Type | - | - | Flash |