Atmel AT91M40800-33AU-999

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Product attributes Property Value
Manufacturer Atmel
Product Series AT91
Packaging Bulk |
Core Processor ARM7®
Core Size 16/32-Bit
Speed 33MHz
Connectivity EBI/EMI, UART/USART
Peripherals POR, WDT
Number of I/O 32
Program Memory Size -
Program Memory Type ROMless
EEPROM Size -
RAM Size 8K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 3.6V
Data Converters -
Oscillator Type External
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 100-LQFP (14x14)
Package / Case 100-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The AT91M40800-33AU-999 is an ARM7TDMI-based microcontroller from Atmel, operating at 33MHz with 8KB SRAM. It runs from 1.8V to 3.6V and comes in a 100-LQFP package, featuring POR and WDT for dependable operation in embedded control applications.

  • Proven ARM7TDMI core – mature architecture with extensive toolchain support.
  • Wide voltage range (1.8V-3.6V) – flexible for various power supplies.
  • 100-pin LQFP – ample I/O for peripheral connectivity.
  • Industrial temperature range – reliable in harsh environments.

Legacy Industrial Controllers

ARM7 core with 33MHz speed provides sufficient processing for PLC and HMI upgrades.

Networking Equipment

8KB RAM and WDT support simple protocol stacks in switches and routers.

Medical Monitoring Systems

Low 1.8V operation and wide temperature range suit patient-worn devices.

Point-of-Sale Terminals

100-pin LQFP allows flexible I/O expansion for card readers and displays.

Test & Measurement Tools

POR and WDT ensure reliable startup in benchtop instruments.

Automotive Aftermarket

Robust ARM7 architecture handles sensor fusion in retrofit modules.

Q: What core does this MCU use?
A: ARM7TDMI core running at 33MHz.
Q: What is the supply voltage range?
A: 1.8V to 3.6V, supporting low-power designs.
Q: How much RAM is available?
A: 8KB internal SRAM.
Q: What package is offered?
A: 100-LQFP for moderate pin-count applications.
Base Product Number : AT91M40800
32-bit MCU 33MHz 8KB RAM ARM7 Industrial LQFP Medical Networking
Q: What core does this MCU use?
A: ARM7TDMI core running at 33MHz.
Q: What is the supply voltage range?
A: 1.8V to 3.6V, supporting low-power designs.
Q: How much RAM is available?
A: 8KB internal SRAM.
Q: What package is offered?
A: 100-LQFP for moderate pin-count applications.