AT89C55WD-24AU
- Mfr.Part #
- AT89C55WD-24AU
- Manufacturer
- Atmel (Microchip Technology)
- Package / Case
- 44-TQFP
- Datasheet
- Download
- Description
- IC MCU 8BIT 20KB FLASH 44TQFP
- Stock
- 16,047
- In Stock :
- 16,047
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- Manufacturer :
- Atmel (Microchip Technology)
- Product Category :
- Microcontrollers
- Lifecycle Status :
- Production (Last Updated: 2 years ago)
- ROM (words) :
- 20480
- Package Type :
- TQFP
- Data Converters :
- --
- Base Part Number :
- AT89C55
- Watchdog Timer :
- yes
- Number of Terminations :
- 44
- Operating Supply Voltage (Typ) :
- 5(V)
- Number of Programmable I/O :
- 32
- Bit Size :
- 8
- RAM (bytes) :
- 256
- Terminal Finish :
- Matte Tin (Sn) - annealed
- Core Processor :
- 8051
- Program Memory Type :
- Flash
- Device Core :
- 80C51
- Pbfree Code :
- yes
- Number of Timers/Counters :
- 3
- Programmable :
- yes
- Packaging :
- Tray
- Radiation Hardening :
- No
- Min Operating Temperature :
- -40 °C
- Interface Type :
- UART
- Max Operating Temperature :
- 85 °C
- Series :
- 89C
- Mounting :
- Surface Mount
- Max Supply Voltage :
- 5.5 V
- Reach Compliance Code :
- Compliant
- Supplier Device Package :
- 44-TQFP (10x10)
- Core Architecture :
- 8051
- Number of Timers - General Purpose :
- 3
- Mount :
- Surface Mount
- Qualification Status :
- Not Qualified
- Product Category :
- 8-bit Microcontrollers - MCU
- RAM Size :
- 256 x 8
- Number of I/Os :
- 32 I/O
- Rad Hardened :
- No
- Number of Pins :
- 44
- RoHS Status :
- ROHS3 Compliant
- Operating Temp Range :
- -40C to 85C
- Temperature Grade :
- Industrial
- Terminal Position :
- QUAD
- Power Supplies :
- 5V
- Height :
- 1.05mm
- # I/Os (Max) :
- 32
- Terminal Form :
- Gull wing
- Access Time :
- 24 μs
- Total Internal Ram Size :
- 256B(kB)
- Schedule B :
- 8542310000, 8542310000/8542310000/8542310000/8542310000/8542310000
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER
- Operating Temperature (Min) :
- -40C
- Peak Reflow Temperature (Cel) :
- 260
- Base Product Number :
- AT89C55
- Contact Plating :
- Tin
- Speed :
- 24MHz
- Number of UART Channels :
- 1
- Surface Mount :
- yes
- Maximum Operating Temperature :
- + 85 C
- Frequency :
- 24MHz
- Number of Terminals :
- 44
- Minimum Operating Temperature :
- - 40 C
- Peripherals :
- WDT
- Supply Current-Max :
- 25 mA
- Product Status :
- Active
- Data Bus Width :
- 8B
- Supply Voltage :
- 5V
- Package Shape :
- Square
- Seated Height-Max :
- 1.2 mm
- Memory Size :
- 20kB
- External Data Bus Width :
- 8
- Oscillator Type :
- Internal
- Operating Supply Voltage (Min) :
- 4(V)
- Number of I/O Lines :
- 32
- DAC Channels :
- No
- Memory Type :
- Flash
- Lead Free :
- Lead Free
- CPU Family :
- 8051
- Brand :
- Microchip Technology / Atmel
- Published :
- 1996
- RoHS :
- Details
- REACH SVHC :
- No SVHC
- Number of I/O :
- 32
- Clock Freq :
- 24(MHz)
- Factory Lead Time :
- 10 Weeks
- Operating Supply Voltage (Max) :
- 5.5(V)
- JESD-30 Code :
- S-PQFP-G44
- Manufacturer :
- Microchip
- Min Supply Voltage :
- 4 V
- Product Type :
- 8-bit Microcontrollers - MCU
- Pin Count :
- 44
- Maximum Expanded Memory Size :
- 64KB
- Max Frequency :
- 24 MHz
- Instruction Set Architecture :
- CISC
- EEPROM Size :
- --
- Core Size :
- 8-Bit
- Package / Case :
- 44-TQFP
- Operating Temperature Classification :
- Industrial
- PWM Channels :
- No
- Mounting Style :
- SMD/SMT
- Package :
- Tray
- Voltage - Supply (Vcc/Vdd) :
- 4.5V~5.5V
- Product :
- MCU
- Length :
- 10.1mm
- JESD-609 Code :
- e3
- Address Bus Width :
- 16
- Mounting Type :
- Surface Mount
- Width :
- 10.1mm
- DMA Channels :
- No
- Has ADC :
- No
- Device Core Size :
- 8(b)
- Terminal Pitch :
- 0.8mm
- Operating Temperature :
- -40°C~85°C TA
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Program Memory Size :
- 20KB 20K x 8
- ROM Programmability :
- Flash
- Interface :
- UART, USART
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Operating Supply Voltage :
- 5V
- Connectivity :
- UART/USART
- Operating Temperature (Max) :
- 85C
- Datasheets
- AT89C55WD-24AU

Microcontrollers Atmel (Microchip Technology) AT89C55WD-24AU Overview
The Microcontrollers Atmel (Microchip Technology) AT89C55WD-24AU is a high-performance, 8-bit microcontroller that offers a robust platform for embedded system applications. Manufactured by Microchip Technology, following their acquisition of Atmel, this microcontroller integrates 20KB of flash memory in a compact 44TQFP package. It is designed to support complex digital signal processing and control tasks in demanding environments. Its high-speed architecture and wide operating voltage range make it an ideal choice for developers aiming to enhance system reliability and efficiency.
AT89C55WD-24AU Features
The AT89C55WD-24AU boasts a variety of features that facilitate robust and versatile applications. Key features include a 20KB flash memory, which provides ample space for program storage and allows for in-system programmability. The device operates at 24 MHz, offering a balanced approach to power consumption and processing speed. Additional attributes include 32 I/O lines, three 16-bit timer/counters, a full-duplex serial port, and on-chip oscillator and clock circuitry, ensuring wide applicability in a range of industrial and commercial applications.
AT89C55WD-24AU Applications
- Automotive Systems: Used in vehicle monitoring systems to handle real-time data processing and control, enhancing vehicle performance and safety.
- Industrial Control: Serves as the central control unit for automation processes in manufacturing, aiding in precision and efficiency of operations.
- Home Automation: Integrates into smart home devices to perform tasks such as lighting control, security, and energy management systems.
- Consumer Electronics: Powers a variety of household gadgets, including gaming consoles and personal digital assistants, offering efficient handling of user inputs and system outputs.
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