AT89C55WD

70 INR

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Product Details:

Resolution 8-bit
Components CPU, RAM, ROM (Flash), I/O lines, Timers, UART
Input TTL-level digital inputs
Output TTL-level digital outputs
Power Supply External
Processor Speed Up to 24 MIPS
Features Programmable Flash memory, 256 bytes RAM, Low-power idle and power-down modes, 32 I/O lines, 3 timers/counters, 2 external interrupts
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AT89C55WD Price And Quantity

Minimum Order Quantity 10 Piece
Price Range 70.00 - 150.00 INR
Price 70 INR

AT89C55WD Product Specifications

Thickness Standard IC package thickness (approx 3-5 mm)
Processor Speed Up to 24 MIPS
Supply Voltage 4.0V to 5.5V
Power Supply External
Output TTL-level digital outputs
Application Data acquisition, control systems, instrumentation
Current Rating Max 25 mA per I/O pin
Product Type Microcontroller IC
Function 8-bit CMOS microcontroller with Flash memory
Input TTL-level digital inputs
Components CPU, RAM, ROM (Flash), I/O lines, Timers, UART
Color Black (package color)
Resolution 8-bit
Response Time Dependent on software
Capacity 20 KB (20,480 bytes) Flash memory
Frequency Up to 24 MHz
Weight Approx. 1.5 g (PDIP-40 package)
Usage Embedded Systems, Microcontroller Applications
Interface Parallel, Serial (UART)
Operating Temperature -40C to +85C
Rated Voltage 5V DC
Size PDIP-40, PLCC-44, VQFP-44
Power Source External DC supply
Features Programmable Flash memory, 256 bytes RAM, Low-power idle and power-down modes, 32 I/O lines, 3 timers/counters, 2 external interrupts
Dimension (L*W*H) 52.3 mm x 13.2 mm x 4.5 mm (PDIP-40)

AT89C55WD Trade Information

Main Domestic Market All India

Product Description

Specification

Base Part Number	AT89C55
Voltage Supply	4.5 V ~ 5.5 V (Vcc/Vdd)
Supplier Device Package	40-PDIP
Speed	24MHz
RAM Size	256 x 8
Program Memory Type	Flash
Program Memory Size	20KB (20K x 8)
Peripherals	WDT
Part Status	Active
Packaging	Tube
Package Case	40-DIP (0.600", 15.24mm)
Oscillator Type	Internal
Operating Temperature	-40 deg C ~ 85 deg C (TA)
Number of IO	32 I/O
Core Size	8-Bit
Core Processor	8051
Connectivity	UART/USART

Versatile Performance for Embedded Applications

The AT89C55WD microcontroller is engineered to deliver exceptional versatility with its 20 KB Flash memory and 32 I/O lines. Designed for embedded system applications, it supports varied functionalities including data processing, control, and communication. Its three 16-bit timers/counters allow for precise event measurement, making it well-suited for control systems and instrumentation.

Flexible Packaging and Robust Design

Available in PDIP-40, PLCC-44, and VQFP-44 packages, the AT89C55WD accommodates different design requirements and board layouts. Its RoHS compliance ensures environmentally responsible manufacturing, while the robust operating range from -40C to +85C makes it dependable for industrial settings. The microcontroller is finished in standard black and features a compact footprint for easy integration.

Efficient Interface and Power Management

Supporting both parallel and UART serial interfaces, the AT89C55WD easily connects with other system components for fast data exchange. The device features low-power idle and power-down modes to optimize energy consumption, making it ideal for battery-backed or energy-sensitive applications. Its external oscillator ensures stable clock operation across diverse conditions.

FAQs of AT89C55WD:

Q: How can the AT89C55WD be programmed and erased?

A: The AT89C55WD microcontroller utilizes in-system programmable Flash memory that can be electrically erased and reprogrammed via its parallel programming interface. This allows developers to easily update firmware and make design changes without removing the chip from its circuit.

Q: What applications are ideal for the AT89C55WD microcontroller?

A: Due to its robust feature setsuch as 32 I/O lines, three 16-bit timers, and UART serial interfacethe AT89C55WD is well-suited for embedded systems, data acquisition, control systems, instrumentation, and other applications that require reliable 8-bit processing and flexible input/output capabilities.

Q: Where can the AT89C55WD be sourced in India?

A: The microcontroller is available for purchase through authorized distributors, importers, manufacturers, suppliers, traders, and wholesalers across India. Electronic component retailers and online B2B marketplaces are also common sources.

Q: What is the process for interfacing the AT89C55WD in a circuit?

A: To integrate the AT89C55WD, connect it to a stable external DC power supply (4.0V to 5.5V), apply an external crystal or clock source for the oscillator, and wire the required I/O lines to other circuit components. Program the device using the parallel programming interface before deploying it in the system.

Q: How does the AT89C55WD benefit control system and embedded designers?

A: Designers gain from its combination of in-system Flash programmability, 32 I/O lines for device control, 256 bytes RAM for data manipulation, multiple timers for precise timing, and energy-saving modes. These features enable flexible designs and faster development cycles in demanding embedded environments.

Q: What safety features does the AT89C55WD offer for robust operation?

A: The microcontroller supports power-down and idle modes to reduce power consumption and operates reliably over a temperature range of -40C to +85C. However, it does not feature an onboard watchdog timer, so additional external circuitry may be required for critical applications.

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