SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 541

• 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

35.10.2
Table 35-30. I/O Characteristics
Notes:
6257A–ATARM–20-Feb-08
Symbol
FreqMax1
PulseminH
PulseminL
FreqMax2
PulseminH
PulseminL
1. Pin Group 1 = PC0-PC29
2. Pin Group 2 = PA0-PA25, PB0-PB23
I/O Characteristics
1
2
1
2
Parameter
Pin Group 1
Pin Group 1
Pin Group 1
Pin Group 2
Pin Group 2
Pin Group 2
Criteria used to define the maximum frequency of the I/Os:
(1)
(1)
(1)
(2)
(2)
(2)
Maximum output frequency
High Level Pulse Width
High Level Pulse Width
Low Level Pulse Width
Maximum output frequency
Low Level Pulse Width
– output duty cycle (30%-70%)
– minimum output swing: 100mV to VDDIO1 - 100 mV
– minimum output swing: 100mV to VDDIO2 - 100 mV
– Addition of rising and falling time inferior to 75% of the period
AT91SAM7L128/64 Preliminary
V
V
V
V
V
V
V
V
V
V
V
V
Load: 25 pF
Load: 25 pF
Load: 25 pF
Conditions
V
V
V
V
V
V
Load: 25pF
Load: 25pF
Load: 25pF
DDIO1
DDIO1
DDIO1
DDIO1
DDIO1
DDIO1
DDIO2
DDIO2
DDIO2
DDIO2
DDIO2
DDIO2
DDIO1
DDIO1
DDIO1
DDIO2
DDIO2
DDIO2
= 1.8V
= 2.5V
= 1.8V
= 2.5V
= 1.8V
= 2.5V
= 1.8V
= 2.5V
= 1.8V
= 2.5V
= 1.8V
= 2.5V
= 3V
= 3V
= 3V
= 3V
= 3V
= 3V
Min
25
15
13
25
15
13
25
17
14
25
17
14
Max
20
33
37
20
29
36
Units
MHz
MHz
ns
ns
ns
ns
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