AT91SAM7XC128B-CU Atmel, AT91SAM7XC128B-CU Datasheet - Page 22
![MCU ARM 128K HS FLASH 100-TFBGA](/photos/6/89/68968/313-100-cbga_sml.jpg)
AT91SAM7XC128B-CU
Manufacturer Part Number
AT91SAM7XC128B-CU
Description
MCU ARM 128K HS FLASH 100-TFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM7XC128B-CU.pdf
(47 pages)
Specifications of AT91SAM7XC128B-CU
Core Processor
ARM7
Core Size
16/32-Bit
Speed
55MHz
Connectivity
CAN, Ethernet, I²C, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
62
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
8.5.3
8.5.3.1
8.5.3.2
8.5.3.3
8.5.4
22
AT91SAM7XC512/256/128 Preliminary
Lock Regions
Security Bit Feature
AT91SAM7XC512
AT91SAM7XC256
AT91SAM7XC128
plane may be performed even while program or erase functions are being executed in the other
memory plane.
One EFC is embedded in the AT91SAM7XC256/128 to control the single plane of 256/128
KBytes.
Two Embedded Flash Controllers each manage 16 lock bits to protect 16 regions of the flash
against inadvertent flash erasing or programming commands. The AT91SAM7XC512 contains
32 lock regions and each lock region contains 64 pages of 256 bytes. Each lock region has a
size of 16 Kbytes.
If a locked-region’s erase or program command occurs, the command is aborted and the EFC
trigs an interrupt.
The 32 NVM bits are software programmable through both of the EFC User Interfaces. The com-
mand “Set Lock Bit” enables the protection. The command “Clear Lock Bit” unlocks the lock
region.
Asserting the ERASE pin clears the lock bits, thus unlocking the entire Flash.
The Embedded Flash Controller manages 16 lock bits to protect 16 regions of the flash against
inadvertent flash erasing or programming commands. The AT91SAM7XC256 contains 16 lock
regions and each lock region contains 64 pages of 256 bytes. Each lock region has a size of 16
Kbytes.
If a locked-region’s erase or program command occurs, the command is aborted and the EFC
trigs an interrupt.
The 16 NVM bits are software programmable through the EFC User Interface. The command
“Set Lock Bit” enables the protection. The command “Clear Lock Bit” unlocks the lock region.
Asserting the ERASE pin clears the lock bits, thus unlocking the entire Flash.
The Embedded Flash Controller manages 8 lock bits to protect 8 regions of the flash against
inadvertent flash erasing or programming commands. The AT91SAM7XC128 contains 8 lock
regions and each lock region contains 64 pages of 256 bytes. Each lock region has a size of 16
Kbytes.
If a locked-region’s erase or program command occurs, the command is aborted and the EFC
trigs an interrupt.
The 8 NVM bits are software programmable through the EFC User Interface. The command “Set
Lock Bit” enables the protection. The command “Clear Lock Bit” unlocks the lock region.
Asserting the ERASE pin clears the lock bits, thus unlocking the entire Flash.
The AT91SAM7XC512/256/128 features a security bit, based on a specific NVM-Bit. When the
security is enabled, any access to the Flash, either through the ICE interface or through the Fast
6209DS–ATARM–17-Feb-09