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AT91SAM7S128-AU-001 Datasheet(PDF) 6 Page - ATMEL Corporation

Part # AT91SAM7S128-AU-001
Description  AT91 ARM Thumb-based Microcontrollers
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT91SAM7S128-AU-001 Datasheet(HTML) 6 Page - ATMEL Corporation

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6
6175GS–ATARM–24-Dec-08
AT91SAM7S Series Summary
3.
Signal Description
Table 3-1.
Signal Description List
Signal Name
Function
Type
Active
Level
Comments
Power
VDDIN
Voltage and ADC Regulator Power Supply
Input
Power
3.0 to 3.6V
VDDOUT
Voltage Regulator Output
Power
1.85V nominal
VDDFLASH
Flash Power Supply
Power
3.0V to 3.6V
VDDIO
I/O Lines Power Supply
Power
3.0V to 3.6V or 1.65V to 1.95V
VDDCORE
Core Power Supply
Power
1.65V to 1.95V
VDDPLL
PLL
Power
1.65V to 1.95V
GND
Ground
Ground
Clocks, Oscillators and PLLs
XIN
Main Oscillator Input
Input
XOUT
Main Oscillator Output
Output
PLLRC
PLL Filter
Input
PCK0 - PCK2
Programmable Clock Output
Output
ICE and JTAG
TCK
Test Clock
Input
No pull-up resistor
TDI
Test Data In
Input
No pull-up resistor
TDO
Test Data Out
Output
TMS
Test Mode Select
Input
No pull-up resistor
JTAGSEL
JTAG Selection
Input
Pull-down resistor(1)
Flash Memory
ERASE
Flash and NVM Configuration Bits Erase
Command
Input
High
Pull-down resistor(1)
Reset/Test
NRST
Microcontroller Reset
I/O
Low
Open-drain with pull-Up resistor
TST
Test Mode Select
Input
High
Pull-down resistor(1)
Debug Unit
DRXD
Debug Receive Data
Input
DTXD
Debug Transmit Data
Output
AIC
IRQ0 - IRQ1
External Interrupt Inputs
Input
IRQ1 not present on AT91SAM7S32/16
FIQ
Fast Interrupt Input
Input
PIO
PA0 - PA31
Parallel IO Controller A
I/O
Pulled-up input at reset
PA0 - PA20 only on AT91SAM7S32/16


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