SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 539

• 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

35.8
Table 35-28. LCD Voltage Characteristics
35.9
Table 35-29. LCD Driver Characteristics
6257A–ATARM–20-Feb-08
Symbol
V
V
I
T
Symbol
V
I
VDDLCD
VDDLCD
VDDLCD
VDDIO2
START
VDDIO2
LCD Voltage Characteristic
LCD Driver Characteristic
Parameter
Supply Voltage
Dropout Voltage
Output Voltage
Current consumption
LCD Startup Time
External storage capacitor
Parameter
Supply Voltage
Current consumption
Figure 35-12. Charge Pump Schematics
Conditions
Resistor Ladder @3.4V
Each output buffer @3.4V
Conditions
Minimum voltage difference needed
between supply voltage and external
output voltage selected
I
CL=4.7µF,ESR=1Ω
No load
On VDDIO2
Tolerance +/- 10%, ESR=1Ω min
O
R = 10
= 4 mA max
VDDINLCD
VDDLCD
VDD3V6
VDDIO2
AT91SAM7L128/64 Preliminary
Regulator
Voltage
Charge
Pump
LCD
Min
Min
100
2.4
2.5
2.4
CAPP1
CAPM1
CAPP2
CAPM2
Typ
Typ
2.9
4.7
Max
1.34
Max
3.4
3.6
3.4
1.5
33
30
Units
Units
mV
mS
µA
µA
µF
V
V
V
539