M42800A Atmel Corporation, M42800A Datasheet - Page 11

• 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

6. Associated Documentation
Table 6-1.
7. Product Overview
7.1
7.2
1779D–ATARM–14-Apr-06
Information
Internal architecture of processor
ARM/Thumb instruction sets
Embedded in-circuit-emulator
External memory interface mapping
Peripheral operations
Peripheral user interfaces
DC characteristics
Power consumption
Thermal and reliability chonsiderations
AC characteristics
Product overview
Ordering information
Packaging information
Soldering profile
Power Supply
Input/Output Considerations
Associated Documentation
The AT91M42800A has three kinds of power supply pins:
VDDCORE and VDDIO pins allow core power consumption to be reduced by supplying it with
a lower voltage than the I/O lines. The VDDCORE pins must never be powered at a voltage
greater than the supply voltage applied to the VDDIO.
The VDDPLL pin is used to supply the oscillator and both PLLs. The voltage applied on these
pins is typically 3.3V, and it must not be lower than VDDCORE.
Typical supported voltage combinations are shown in the following table:
Table 1.
After the reset, the peripheral I/Os are initialized as inputs to provide the user with maximum
flexibility. It is recommended that in any application phase, the inputs to the AT91M42800A
microcontroller be held at valid logic levels to minimize the power consumption.
Pins
VDDCORE
VDDIO
VDDPLL
• VDDCORE pins that power the chip core
• VDDIO pins that power the I/O lines
• VDDPLL pins that power the oscillator and PLL cells
Document Title
ARM7TDMI (Thumb) Datasheet
AT91M42800A Datasheet (this document)
AT91M42800A Electrical Characteristics Datasheet
AT91M42800A Summary Datasheet
3.3V
5.0V
3.3V
Nominal Supply Voltages
AT91M42800A
3.0V or 3.3V
3.0V or 3.3V
3.0V or 3.3V
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