AT91SAM7X256B-CU Atmel, AT91SAM7X256B-CU Datasheet - Page 14
![IC MCU 256KB FLASH 100TFBGA](/photos/6/89/68968/313-100-cbga_sml.jpg)
AT91SAM7X256B-CU
Manufacturer Part Number
AT91SAM7X256B-CU
Description
IC MCU 256KB FLASH 100TFBGA
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7X256B-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
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
64K 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
Processor Series
91S
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
64 KB
Interface Type
CAN, Ethernet, SPI, I2S, TWI, USART, USB
Maximum Clock Frequency
55 MHz
Number Of Programmable I/os
62
Number Of Timers
3
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Package
100TFBGA
Device Core
ARM7TDMI
Family Name
91S
Maximum Speed
55 MHz
On-chip Adc
8-chx10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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Manufacturer
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6.5
6.6
14
PIO Controller Lines
I/O Lines Current Drawing
AT91SAM7X512/256/128 Preliminary
All the I/O lines, PA0 to PA30 and PB0 to PB30, are 5V-tolerant and all integrate a programma-
ble pull-up resistor. Programming of this pull-up resistor is performed independently for each I/O
line through the PIO controllers.
5V-tolerant means that the I/O lines can drive voltage level according to VDDIO, but can be
driven with a voltage of up to 5.5V. However, driving an I/O line with a voltage over VDDIO while
the programmable pull-up resistor is enabled will create a current path through the pull-up resis-
tor from the I/O line to VDDIO. Care should be taken, in particular at reset, as all the I/O lines
default to input with pull-up resistor enabled at reset.
The PIO lines PA0 to PA3 are high-drive current capable. Each of these I/O lines can drive up to
16 mA permanently.
The remaining I/O lines can draw only 8 mA.
However, the total current drawn by all the I/O lines cannot exceed 200 mA.
6120H–ATARM–17-Feb-09
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