Atmel offers Flash 8051 microcontrollers featuring In-System Programming (ISP) that they can be programmed with the appropriate software, either in parallel or in serial mode.
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
Attribute
Value
Family Name
AT89S
Package Type
TQFP
Mounting Type
Surface Mount
Pin Count
44
Device Core
8051
Data Bus Width
8bit
Program Memory Size
8 kB
Maximum Frequency
24MHz
RAM Size
128 B
Number of SPI Channels
0
Number of USART Channels
0
Number of UART Channels
1
Number of CAN Channels
0
Number of I2C Channels
0
Typical Operating Supply Voltage
4 → 5.5 V
Program Memory Type
Flash
Number of LIN Channels
0
Height
1.05mm
Minimum Operating Temperature
-40 °C
Width
10.1mm
Length
10.1mm
Maximum Operating Temperature
+85 °C
Instruction Set Architecture
RISC
Number of PCI Channels
0
Number of Ethernet Channels
0
Dimensions
10.1 x 10.1 x 1.05mm
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