M42800A Atmel Corporation, M42800A Datasheet - Page 2

• Manufacturer Part Number: M42800A
• Manufacturer: Atmel Corporation

Specifications of M42800A

• Flash (kbytes): 0 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 33 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 54
• Ext Interrupts: 54
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 8
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.3/5.0
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

1. Description
The AT91M42800A is a member of the Atmel AT91 16/32-bit microcontroller family, which is
based on the ARM7TDMI processor core. This processor has a high-performance 32-bit RISC
architecture with a high-density 16-bit instruction set and very low power consumption. In addi-
tion, a large number of internally banked registers result in very fast exception handling,
making the device ideal for real-time control applications. The AT91 ARM-based MCU family
also features Atmel’s high-density, in-system programmable, nonvolatile memory technology.
The AT91M42800A has a direct connection to off-chip memory, including Flash, through the
External Bus Interface.
The Power Management Controller allows the user to adjust device activity according to sys-
tem requirements, and, with the 32.768 kHz low-power oscillator, enables the AT91M42800A
to reduce power requirements to an absolute minimum. The AT91M42800A is manufactured
using Atmel’s high-density CMOS technology. By combining the ARM7TDMI processor core
with on-chip SRAM and a wide range of peripheral functions including timers, serial communi-
cation controllers and a versatile clock generator on a monolithic chip, the AT91M42800A
provides a highly flexible and cost-effective solution to many compute-intensive applications.
AT91M42800A
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