SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 534

• Manufacturer Part Number: SAM7L128
• Manufacturer: Atmel Corporation

Specifications of SAM7L128

• Flash (kbytes): 128 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 36 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 80
• Ext Interrupts: 80
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 3
• Segment Lcd: 40
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 460
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 6
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.8 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

35.4.3
Table 35-15. XTAL Oscillator Characteristics
Notes:
35.4.4
Table 35-16. Crystal Characteristics
534
Symbol
F
I
P
R
C
C
Symbol
ESR
C
C
DDST
req
ON
f
LEXT
L
M
SHUNT
1. R
AT91SAM7L128/64 Preliminary
XTAL Oscillator Characteristics
Crystal Characteristics
S
is the series resitor..
Parameter
Operating Frequency
Supply Voltage
Duty Cycle
Startup Time
Current consumption
Standby Current Consumption
Drive level
Internal resistor
Maximum external capacitor
on XIN and XOUT
Internal Equivalent Load Capacitance
Parameter
Equivalent Series Resistor Rs
Motional capacitance
Shunt capacitance
C
XIN
LEXT
Conditions
Crystal @ 32.768KHz
Crystal @ 32.768KHz
Crystal @ 32.768KHz
Conditions
Normal mode with crystal
VDDIO1 Domain
Rs < 50KΩ
Rs < 100KΩ
(1)
Rs < 50KΩ
Rs < 100KΩ
(1)
Standby mode @ 3.6V
between XIN and XOUT
Integrated Load Capacitance
(XIN and XOUT in series)
AT91SAM7L
C
L
CL = 12.5pF
CL = 6pF
CL = 12.5pF
CL = 6pF
CL = 12.5pF
CL = 6pF
CL = 12.5pF
CL = 6pF
C
XOUT
LEXT
Min
0.6
0.6
Min
1.8
2.0
40
Typ
50
Typ
650
450
900
650
2.5
50
10
6257A–ATARM–20-Feb-08
Max
32.768
100
1200
1400
1200
1600
1400
Max
3
2
900
300
500
3.6
0.1
3.0
60
20
5
Unit
Unit
KHz
MΩ
µW
KΩ
ms
nA
nA
pF
pF
pF
fF
%
V