Product Summary

The AT89C55WD-24PU is a low-power, high-performance CMOS 8-bit microcontroller with 20K bytes of Flash programmable read only memory and 256 bytes of RAM. The AT89C55WD-24PU is manufactured using Atmel high-density nonvolatile memory technology and is compatible with the industry standard 80C51 and 80C52 instruction set and pinout. The on-chip Flash allows the program memory to be user programmed by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C55WD-24PU is a powerful microcomputer which provides a highly flexible and cost effective solution to many embedded control applications.

Parametrics

AT89C55WD-24PU absolute maximum ratings: (1)Operating Temperature: -55℃ to +125℃; (2)Storage Temperature: -65℃ to +150℃; (3)Voltage on Any Pin with Respect to Ground: -1.0V to +7.0V; (4)Maximum Operating Voltage: 6.6V; (5)DC Output Current: 15.0 mA.

Features

AT89C55WD-24PU features: (1)Compatible with MCS -51 Products; (2)20K Bytes of Reprogrammable Flash Memory; (3)Endurance: 1000 Write/Erase Cycles; (4)4V to 5.5V Operating Range; (5)Fully Static Operation: 0 Hz to 33 MHz; (6)Three-level Program Memory Lock; (7)256 x 8-bit Internal RAM; (8)32 Programmable I/O Lines; (9)Three 16-bit Timer/Counters; (10)Eight Interrupt Sources; (11)Programmable Serial Channel; (12)Low-power Idle and Power-down Modes; (13)Interrupt Recovery from Power-down Mode; (14)Hardware Watchdog Timer; (15)Dual Data Pointer; (16)Power-off Flag; (17)Green (Pb/Halide-free) Packaging Option.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
AT89C55WD-24PU
AT89C55WD-24PU

Atmel

8-bit Microcontrollers (MCU) 20K FLASH - 24MHZ IND TEMP 5V

Data Sheet

0-1: $1.58
1-10: $1.54
10-25: $1.49
25-100: $1.40
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
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AT89C2051-24SU

Atmel

8-bit Microcontrollers (MCU) 20 PINS UART 2K FLASH-24MHZ 4-5.5V

Data Sheet

0-1: $0.76
1-10: $0.73
10-25: $0.71
25-100: $0.67
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Data Sheet

0-1: $3.44
1-10: $3.34
10-25: $3.17
25-100: $2.96
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AT89C51CC01UA-SLSUM

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Data Sheet

10-25: $4.44
25-100: $4.16
0-1: $5.00
1-10: $4.89
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Data Sheet

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Data Sheet

Negotiable 
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Data Sheet

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