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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.

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Evaluation Software
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
Emulators
FLASH Utilities
Device Programmers
Development Tools
Compiler, Assembler, Linker, Debugger
Simulated Features
NOTE
Simulation for this device is provided by the default peripheral simulation driver.

Complete peripheral simulation is not available at this time.

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

Real-Time OS
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.

Consultants

The following consultants have experience with this device.