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AT89C55WD

Status: In Production

Overview
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Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

Low-power, high-performance CMOS 8-bit microcontroller with 20KB of flash programmable ROM and 256 bytes of RAM. The device is manufactured using Microchip high-density nonvolatile memory technology and is compatible with the industry standard 80C51 and 80C52 instruction set and pinout. On-chip flash allows the program memory to be user programmed by a conventional nonvolatile memory programmer.

This versatile 8-bit CPU with flash is a highly flexible and cost-effective solution for many embedded control applications.

Parametrics
Name
Value
Program Memory Type
Flash
Program Memory Size (KB)
20
CPU Speed (MIPS/DMIPS)
4
Digital Communication Peripherals
1-UART,
Temperature Range (°C)
0 to 0
Operating Voltage Range (V)
4 to 6
Pin Count
44

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Application Notes

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MISC


Development tools data is currently unavailable.

Similar Devices

Product
Pins
Flash (KB)
RAM (B)
Price 5K
Notes
44
0
1
$0.98
 
32
0
1
 
 
32
0
1
 
 
64
0
1
 
 
20
0
0
 
 
20
2
0
$0.69
 
20
4
0
$0.73
 
32
16
0
$4.42
 
64
16
1
$3.09
 
64
32
1
$3.91
 
64
32
1
$3.81
 
44
32
1
$4.72
 
64
64
2
$4.91
 
44
32
1
$4.58
 
32
16
0
$4.12
 
64
64
2
$5.39
 
44
64
2
$4.72
 
44
32
1
$4.03
 
44
64
2
$5.80
 
44
16
1
$3.44
 
44
32
0
$1.39
 
44
32
1
$3.93
 
44
20
0
$1.39
 
20
4
0
 
 
44
4
0
$1.03
 
44
8
0
$1.12
 
20
2
0
$1.26
 
20
4
0
$1.08
 
44
4
0
$1.03
 
44
8
0
$1.11
 
44
12
0
$1.30
 

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
AT89C55WD-24AU
0.273300
1.187500
44
TQFP
10x10x1mm
Matte Tin
e3
AT89C55WD-24AUR
0.273300
0.748333
44
TQFP
10x10x1mm
Matte Tin
e3
AT89C55WD-24JU
2.375500
3.703704
44
PLCC
16.6x16.6x4.4mm
Matte Tin
e3
AT89C55WD-24JUR
2.375500
3.400000
44
PLCC
16.6x16.6x4.4mm
Matte Tin
e3
AT89C55WD-24PU
6.500000
10.600000
40
PDIP
.600in
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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