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Atmel AT89S4D12

The Atmel AT89S4D12 is an 8051 based Full Static CMOS controller with Three-Level Program Memory Lock 5 I/O lines, SPI Interface, 2 DPTRs, Serial Program Downloading 4K Flash Program Memory, 128K Flash Data Memory, 256 Bytes On-chip RAM.

[Chip Vendor] [Distributors]

Development Tools
Compiler, Assembler, Linker, Debugger
Data Sheets
Data Sheet for the Atmel AT89S4D12
Data Sheet
104,144 bytes
Instruction Set Manual for the Atmel AT89S4D12
Instruction Set Manual
188,104 bytes

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Header Files
Example Code
Device Programmers
Real-Time OS
Simulated Features
Simulation for this device is provided by the default peripheral simulation driver.

Complete peripheral simulation is not available and is not planned to be implemented by ARM.

The following on-chip peripherals are simulated by the Keil Software µVision Debugger.

AGSI Drivers

The following AGSI Drivers are available for the Keil Software µVision Simulator.

AGDI Drivers

The following AGDI Drivers are available for the Keil Software µVision Debugger.

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