AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 6
AT91SAM7S256D-AU
Manufacturer Part Number
AT91SAM7S256D-AU
Description
ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
Manufacturer
Atmel
Series
SAM7S256r
Datasheet
1.AT91SAM7S256D-AU.pdf
(775 pages)
Specifications of AT91SAM7S256D-AU
Rohs
yes
Core
ARM
Processor Series
AT91SAM
Data Bus Width
16 bit/32 bit
Maximum Clock Frequency
55 MHz
Program Memory Size
256 KB
Data Ram Size
64 KB
On-chip Adc
Yes
Operating Supply Voltage
3 V to 3.6 V
Operating Temperature Range
- 40 C to + 85 C
Package / Case
LQFP-64
Mounting Style
SMD/SMT
Interface Type
2-Wire, I2S, SPI, USART
Length
7 mm
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7S256D-AU
Manufacturer:
ATMEL
Quantity:
101
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3.
Table 3-1.
Signal Name
VDDIN
VDDOUT
VDDFLASH
VDDIO
VDDCORE
VDDPLL
GND
XIN
XOUT
PLLRC
PCK0 - PCK2
TCK
TDI
TDO
TMS
JTAGSEL
ERASE
NRST
TST
DRXD
DTXD
IRQ0 - IRQ1
FIQ
PA0 - PA31
Signal Description
Signal Description List
Function
Voltage and ADC Regulator Power Supply
Input
Voltage Regulator Output
Flash Power Supply
I/O Lines Power Supply
Core Power Supply
PLL
Ground
Main Oscillator Input
Main Oscillator Output
PLL Filter
Programmable Clock Output
Test Clock
Test Data In
Test Data Out
Test Mode Select
JTAG Selection
Flash and NVM Configuration Bits Erase
Command
Microcontroller Reset
Test Mode Select
Debug Receive Data
Debug Transmit Data
External Interrupt Inputs
Fast Interrupt Input
Parallel IO Controller A
Clocks, Oscillators and PLLs
Flash Memory
ICE and JTAG
Debug Unit
Reset/Test
Power
AIC
PIO
Ground
Output
Output
Output
Output
Power
Power
Power
Power
Power
Power
Type
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
I/O
I/O
Active
Level
High
High
Low
SAM7S Series [DATASHEET]
Comments
3.0 to 3.6V
1.85V nominal
3.0V to 3.6V
3.0V to 3.6V or 1.65V to 1.95V
1.65V to 1.95V
1.65V to 1.95V
No pull-up resistor
No pull-up resistor
No pull-up resistor
Pull-down resistor
Pull-down resistor
Open-drain with pull-Up resistor
Pull-down resistor
IRQ1 not present on SAM7S32/16
Pulled-up input at reset
PA0 - PA20 only on SAM7S32/16
6175M–ATARM–26-Oct-12
(1)
(1)
(1)
6
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