| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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780 pcs
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780 pcs | On Request | 1 | On Request | On Request | 09+ | On Request | On Request |
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The AT89C55WD-24AU is an 8-bit microcontroller from Atmel built around the industry-standard 8051 core. It operates at 24 MHz with a maximum clock frequency of 33 MHz and provides 20 KB of reprogrammable FLASH program memory plus 256 x 8-bit internal RAM. The device includes 32 programmable I/O lines, three 16-bit timer/counters, eight interrupt sources, a programmable serial channel (UART/USART), and a hardware watchdog timer. It also supports low-power idle and power-down modes, making it suitable for power-sensitive embedded designs.
The microcontroller operates from a 4.5V to 5.5V supply (4V to 5.5V per datasheet) and is available in a 44-pin TQFP surface-mount package measuring 10x10 mm. It is characterized for an industrial temperature range of -40°C to 85°C. The on-chip FLASH memory is rated for 10,000 write/erase cycles, and the device is fully static, allowing operation from 0 Hz to 33 MHz.
This component is intended for embedded control applications such as industrial instrumentation, serial communication interfaces, and other systems requiring a cost-effective 8051-compatible solution.
The device operates from 4.5V to 5.5V (existing specs); the datasheet states 4V to 5.5V.
It comes in a 44-pin TQFP surface-mount package with a body size of 10x10 mm.
The industrial temperature range is -40°C to 85°C.
It is listed as RoHS compliant, though this status is unverified in the database.
It has 20 KB (20K x 8) of reprogrammable FLASH program memory.
The device supports a maximum clock frequency of 33 MHz with a rated speed of 24 MHz.
It includes a UART/USART serial channel, hardware watchdog timer, three 16-bit timer/counters, and eight interrupt sources.