SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 123

• 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

• VRDEEP: Voltage Regulator Deep Mode
0 = Voltage Regulator Deep Mode is disabled.
1 = Voltage Regulator Deep Mode is enabled.
• VRVDD: Voltage Regulator Output Voltage Selection
• VRRSTEN: Voltage Regulation Loss Reset Enable
0 = Losing the voltage regulation does not affect the core reset signal, vddcore_nreset.
1 = Losing the voltage regulation asserts the core reset signal, vddcore_nreset.
• SRAMON: SRAM On
0 = SRAM (Backup) switched off in backup mode.
1 = SRAM (Backup) switched on in backup mode.
• RTON: Real Time Clock Alarm Power Switch On
0 = Real Time Clock Alarm switched off.
1 = Real Time Clock Alarm switched on.
• FLASHON: Flash Memory Power Switch On
0 = Flash Memory switched off.
1 = Flash Memory switched on.
• OSCBYPASS: Oscillator Bypass
0 = No effect. Clock selection depends on XTALSEL value.
1 = The 32-KHz XTAL oscillator is selected and is put in bypass mode.
• KEY: Password Key
Should be written to value 0xA5. Writing any other value in this field aborts the write operation.
6257A–ATARM–20-Feb-08
LCDMODE
0x5 - 0x7
VRVDD
0x1
0x2
0x3
0x0
0x1
0x2
0x3
0x4
At the End of Frame from the LCD Controller, the internal supply source and the external supply source are
both deselected and the on-chip charge pump is turned off.
The external supply source is selected.
The internal supply source is selected and the on-chip charge pump is turned on.
LCD Controller Power Supply
Voltage Regulator Output Voltage
Reserved
Reserved
1.55V
1.65V
1.75V
1.80V
AT91SAM7L128/64 Preliminary
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