SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 5
SAM7L128
Manufacturer Part Number
SAM7L128
Description
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
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3. Signal Description
Table 3-1.
6257A–ATARM–20-Feb-08
Signal Name
VDDIO1
VDDOUT
VDDCORE
VDDINLCD
VDD3V6
VDDLCD
VDDIO2
CAPP1
CAPM1
CAPP2
CAPM2
FWUP
WKUP0-15
GND
XIN
XOUT
CLKIN
PCK0 - PCK2
PLLRC
PLLRCGND
TCK
TDI
TDO
TMS
JTAGSEL
ERASE
Signal Description List
I/O Lines (PIOC) and Voltage Regulator
Power Supply
Voltage Regulator Output
Core Power Supply
Charge Pump Power Supply
Charge Pump Output
LCD Voltage Regulator Power Supply
LCD Voltage Regulator Output
and
LCD I/O Lines Power Supply (PIOA and
PIOB)
Charge pump capacitor 1
Charge pump capacitor 1
Charge pump capacitor 2
Charge pump capacitor 2
Force Wake-up
Wake-up inputs used in Backup mode and
Fast Start-up inputs in Wait mode
Ground
32 kHz Oscillator Input
32 kHz Oscillator Output
Main Clock input
Programmable Clock Output
PLL Filter
Test Clock
Test Data Out
Test Mode Select
JTAG Selection
Flash and NVM Configuration Bits Erase
Command
Function
PLL RC Filter Ground
Test Data In
Clocks, Oscillators and PLLs
Flash Memory
ICE and JTAG
Ground
Power
Output
Output
Output
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Type
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
AT91SAM7L128/64 Preliminary
Active
Level
High
Low
VDDCORE
Reference Comments
VDDIO1
VDDIO1
VDDIO1
VDDIO1
VDDIO1
VDDIO1
VDDIO1
VDDIO1
VDDIO1
VDDIO1
VDDIO1
Voltage
From 1.80V to 3.6V
Connected externally to VDDOUT
From 1.80V to 3.6V
1.80V to 3.6V
Capacitor needed between CAPP1
and CAPM1.
Capacitor needed between CAPP2
and CAPM2.
Needs external Pull-up.
Should be tied low when not used.
Must not be connected to external
Ground.
No internal pull-up resistor
No internal pull-up resistor
No internal pull-up resistor
Internal Pull-down resistor
Internal Pull-down (15 k
Ω
) resistor
5
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