M55800A Atmel Corporation, M55800A Datasheet - Page 10

• Manufacturer Part Number: M55800A
• Manufacturer: Atmel Corporation

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

Crystal Oscillator Characteristics
Table 8. RTC Oscillator Characteristics
Table 9. Main Oscillator Characteristics
Notes:
10
Symbol
1/(t
C
C
t
ST
Symbol
1/(t
C
C
t
ST
L1
L
L1
L
CPRTC
, C
CPMAIN
, C
L2
L2
1. With ESR (Electrical Serie Resistor) maximum equal to 200 , C
2. With ESR maximum equal to 100 , C
3. With ESR maximum equal to 50 , C
)
)
AT91M55800A
Parameter
Crystal Oscillator Frequency
Internal Load Capacitance
(C
Equivalent Load Capacitance
Duty Cycle
Startup Time
Parameter
Crystal Oscillator Frequency
Internal Load Capacitance
(CL1 = CL2)
Equivalent Load Capacitance
Duty Cycle
Startup Time
L1
= C
L2
)
S
Conditions
C
Measured at the MCKO output pin
Without any additional load capacitance
and an ESR Max = 50 k
With 13 pF external capacitor per pin and
an ESR Max = 50 k
Conditions
C
With 10 pF external capacitor per pin
and a 3 MHz crystal
With 10 pF external capacitor per pin
and a 8 MHz crystal
With 10 pF external capacitor per pin
and a 16 MHz crystal
With 10 pF external capacitor per pin
and a 20 MHz crystal
S
maximum = 7 pF.
L1
L1
maximum = 7 pF.
= C
= C
L2
L2
= 12 pF
= 25 pF
(1)
(2)
(3)
(3)
S
maximum = 3 pF.
Min
Min
45
45
3
32.768
Typ
12.5
Typ
12
50
16
25
50
6
Max
Max
300
700
4.2
1.4
55
20
55
13
1727E–ATARM–01/04
1
MHz
Unit
KHz
Unit
ms
ms
ms
ms
ms
ms
pF
pF
pF
pF
%
%