M42800A Atmel Corporation, M42800A Datasheet - Page 37

• 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

1354D–ATARM–08/02
Figures 26 through 32 show the timing cycles and wait states for read and write access
to the various AT91X40 Series external memory devices. The configurations described
are shown in the following table:
Table 5. Memory Access Waveforms
Figure Number
26
27
28
29
30
31
32
Number of Wait States
0
1
1
0
1
1
0
Bus Width
16
16
16
16
8
8
8
AT91X40 Series
Size of Data Transfer
Half-word
Half-word
Word
Word
Word
Byte
Byte
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