SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 3
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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1. Description
6257A–ATARM–20-Feb-08
The AT91SAM7L128/64 are low power members of Atmel’s Smart ARM Microcontroller family
based on the 32-bit ARM7
They also embed a large set of peripherals, including a Segment LCD Controller and a complete
set of system functions minimizing the number of external components.
These devices provide an ideal migration path for 8-bit microcontroller users looking for addi-
tional performance, extended memory and higher levels of system integration with strong
constraints on power consumption.
Featuring innovative power reduction modes and ultra-low-power operation, the
AT91SAM7L128/64 is tailored for battery operated applications such as calculators, toys,
remote controls, medical devices, mobile phone accessories and wireless sensors.
The embedded Flash memory can be programmed in-system via the JTAG-ICE interface or via
a parallel interface on a production programmer prior to mounting. Built-in lock bits and a secu-
rity bit protect the firmware from accidental overwrite and preserve its confidentiality.
The AT91SAM7L128/64 system controller includes a reset controller capable of managing the
power-on sequence of the microcontroller and the complete system. Correct device operation
can be monitored by a built-in brownout detector and a watchdog running off an integrated
oscillator.
By combining the ARM7TDMI processor with on-chip Flash and SRAM, and a wide range of
peripheral functions, including USART, SPI, External Bus Timer Counter, RTC and Analog-to-
Digital Converters on a monolithic chip, the AT91SAM7L128/64 microcontroller is a powerful
device that provides a flexible, cost-effective solution to many embedded control applications.
• AT91SAM7L128 features a 128 Kbyte high-speed Flash and a total of 6 Kbytes SRAM.
• AT91SAM7L64 features a 64 Kbyte high-speed Flash and a total of 6 Kbytes SRAM.
™
RISC processor and high-speed Flash memory.
AT91SAM7L128/64 Preliminary
3
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