M55800A Atmel Corporation, M55800A Datasheet - Page 17
M55800A
Manufacturer Part Number
M55800A
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.M40800.pdf
(153 pages)
3.M55800A.pdf
(29 pages)
4.M55800A.pdf
(256 pages)
5.M55800A.pdf
(28 pages)
Specifications of M55800A
Flash (kbytes)
0 Kbytes
Pin Count
176
Max. Operating Frequency
33 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
58
Ext Interrupts
58
Usb Speed
No
Usb Interface
No
Spi
1
Uart
3
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
72
Resistive Touch Screen
No
Dac Channels
1
Dac Resolution (bits)
10
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
1745FS–ATARM–18-Apr-06
configure up to eight 16-Mbyte banks. In all cases it supports byte, half-word and word aligned
accesses.
For each of these banks, the user can program:
The External Bus Interface features also the Early Read Protocol, configurable for all the
devices, that significantly reduces access time requirements on an external device.
• Number of wait states
• Number of data float times (wait time after the access is finished to prevent any bus
• Data bus width (8-bit or 16-bit)
• With a 16-bit wide data bus, the user can program the EBI to control one 16-bit device
contention in case the device is too long in releasing the bus)
(Byte Access Select Mode) or two 8-bit devices in parallel that emulate a 16-bit memory
(Byte-write Access mode).
AT91M55800A Summary
17