Microchip, 8bit 8051, AT89 Microcontroller, 24MHz, 20 kB Flash, 40-Pin PDIP
- RS Stock No.:
- 127-6628
- Mfr. Part No.:
- AT89C55WD-24PU
- Manufacturer:
- Microchip
Subtotal (1 pack of 2 units)*
HK$87.10
FREE delivery for orders over HK$250.00
In Stock
- Plus 2,602 unit(s) shipping from 08 December 2025
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Units | Per unit | Per Pack* |
|---|---|---|
| 2 + | HK$43.55 | HK$87.10 |
*price indicative
- RS Stock No.:
- 127-6628
- Mfr. Part No.:
- AT89C55WD-24PU
- Manufacturer:
- Microchip
Specifications
Product overview and Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Microchip | |
| Family Name | AT89 | |
| Package Type | PDIP | |
| Mounting Type | Through Hole | |
| Pin Count | 40 | |
| Device Core | 8051 | |
| Data Bus Width | 8bit | |
| Program Memory Size | 20 kB | |
| Maximum Frequency | 24MHz | |
| RAM Size | 256 B | |
| USB Channels | 0 | |
| Number of PWM Units | 0 | |
| Number of SPI Channels | 0 | |
| Typical Operating Supply Voltage | 4 → 5.5 V | |
| Number of UART Channels | 1 | |
| Number of CAN Channels | 0 | |
| Number of Ethernet Channels | 0 | |
| Program Memory Type | Flash | |
| Instruction Set Architecture | CISC | |
| Length | 52.57mm | |
| ADCs | 0 | |
| Maximum Number of Ethernet Channels | 0 | |
| Height | 4.44mm | |
| Minimum Operating Temperature | -40 °C | |
| Number of ADC Units | 0 | |
| Maximum Operating Temperature | +85 °C | |
| Dimensions | 52.57 x 13.97 x 4.44mm | |
| Pulse Width Modulation | 0 | |
| Width | 13.97mm | |
| Select all | ||
|---|---|---|
Brand Microchip | ||
Family Name AT89 | ||
Package Type PDIP | ||
Mounting Type Through Hole | ||
Pin Count 40 | ||
Device Core 8051 | ||
Data Bus Width 8bit | ||
Program Memory Size 20 kB | ||
Maximum Frequency 24MHz | ||
RAM Size 256 B | ||
USB Channels 0 | ||
Number of PWM Units 0 | ||
Number of SPI Channels 0 | ||
Typical Operating Supply Voltage 4 → 5.5 V | ||
Number of UART Channels 1 | ||
Number of CAN Channels 0 | ||
Number of Ethernet Channels 0 | ||
Program Memory Type Flash | ||
Instruction Set Architecture CISC | ||
Length 52.57mm | ||
ADCs 0 | ||
Maximum Number of Ethernet Channels 0 | ||
Height 4.44mm | ||
Minimum Operating Temperature -40 °C | ||
Number of ADC Units 0 | ||
Maximum Operating Temperature +85 °C | ||
Dimensions 52.57 x 13.97 x 4.44mm | ||
Pulse Width Modulation 0 | ||
Width 13.97mm | ||
8051 Architecture Flash (Reprogrammable) Microcontrollers
Atmel offers 8051 reprogrammable flash microcontrollers with programmable and erasable read-only memory, using high-density non-volatile memory technology.
For these non-cancellable (NC), and non-returnable (NR) products, Terms and Conditions apply.
8051 Architecture Microcontrollers
Atmel's 8-bit microcontrollers (MCUs) based on the 8051 instruction set, combine proven technology with the latest features and functionality, with all featuring advanced flash memory.
Device Family
Single Cycle Core
Flash ISP (In-System Programmable)
Flash (Reprogrammable)
CAN Networking MCUs
USB MCUs
ROMless
Flash ISP (In-System Programmable)
Flash (Reprogrammable)
CAN Networking MCUs
USB MCUs
ROMless
Related links
- Microchip AT89 Microcontroller 8 kB Flash, 40-Pin PDIP
- Microchip AT89 Microcontroller 12 kB Flash, 40-Pin PDIP
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- Microchip AT89 Microcontroller 4 kB Flash, 20-Pin PDIP
- Microchip AT89 Microcontroller 20 kB Flash, 44-Pin PLCC
- Microchip AT89 Microcontroller 60 MHz 40-Pin PDIL
- Microchip AT89 Microcontroller 60 MHz 40-Pin PDIL
