AT91SAM7L64-AU Atmel, AT91SAM7L64-AU Datasheet - Page 25
![MCU ARM7 64K HS FLASH 128-LQFP](/photos/6/71/67112/128-lqfp_sml.jpg)
AT91SAM7L64-AU
Manufacturer Part Number
AT91SAM7L64-AU
Description
MCU ARM7 64K HS FLASH 128-LQFP
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7L64-AU
Core Processor
ARM7
Core Size
16/32-Bit
Speed
36MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
80
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
6K x 8
Voltage - Supply (vcc/vdd)
1.55 V ~ 1.8 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
128-LQFP
Controller Family/series
AT91SAM7xxx
No. Of I/o's
80
Ram Memory Size
6KB
Cpu Speed
36MHz
No. Of Timers
1
Rohs Compliant
Yes
Processor Series
AT91SAMx
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
6 KB
Interface Type
2-Wire, SPI, USART
Maximum Clock Frequency
36 MHz
Number Of Programmable I/os
80
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM7L-EK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 4 Channel
For Use With
AT91SAM7L-STK - KIT EVAL FOR AT91SAM7LAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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- Download datasheet (9Mb)
8.1
8.1.1
8.1.1.1
8.1.1.2
8.1.1.3
6257A–ATARM–20-Feb-08
Embedded Memories
Internal Memories
Internal SRAM
Internal ROM
Internal Flash
The AT91SAM7L128/64 embeds a high-speed 4-Kbyte SRAM bank and a 2-Kbyte backup
SRAM bank. The backup SRAM is directly supplied on 1.8V-3.6V supply domain.
The 4-Kbyte Core SRAM is supplied by VDDCORE which is connected to the output of the volt-
age regulator.
After reset and until the Remap Command is performed, the 4-Kbyte Core SRAM is only acces-
sible at address 0x0020 0000. The 2-Kbyte Backup SRAM is accessible at address 0x0030
0000.
After remap, the 4-Kbyte Core SRAM also becomes available at address 0x0.
The user can see the 6 Kbytes of SRAM contiguously at address 0x002F F000.
The AT91SAM7L128/64 embeds an Internal ROM. The ROM is always mapped at address
0x0040 0000. The ROM contains the FFPI and SAM-BA program.
ROM size is 12 Kbytes.
At any time, the Flash is mapped to address 0x0010 0000.
A general purpose NVM (GPNVM1) bit is used to boot either on the ROM (default) or from the
Flash.
This GPNVM1 bit can be cleared or set respectively through the commands “Clear General-pur-
pose NVM Bit” and “Set General-purpose NVM Bit” of the EEFC User Interface.
Setting the GPNVM Bit 1 selects the boot from the Flash, clearing it selects the boot from the
ROM. Asserting ERASE clears the GPNVM Bit 1 and thus selects the boot from the ROM by
default.
• The AT91SAM7L128 features one bank of 128 Kbytes of Flash.
• The AT91SAM7L64 features one bank of 64 Kbytes of Flash.
AT91SAM7L128/64 Preliminary
25
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