AT91SAM7S256-AU-001 Atmel, AT91SAM7S256-AU-001 Datasheet - Page 6

• Manufacturer Part Number: AT91SAM7S256-AU-001
• Description: IC ARM7 MCU 32BIT 256K 64LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S256-AU-001

• Package / Case: 64-LQFP
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 55MHz
• Number Of I /o: 32
• Core Processor: ARM7
• Program Memory Type: FLASH
• Ram Size: 64K x 8
• Program Memory Size: 256KB (256K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Core Size: 16/32-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: AT91SAM7S256AU001

3. Signal Description
Table 3-1.
6
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
AT91SAM7S Series Summary
Signal Description List
Voltage Regulator Output
I/O Lines Power Supply
Ground
Main Oscillator Input
Programmable Clock Output
Test Clock
Test Data In
Test Data Out
Test Mode Select
Test Mode Select
Debug Transmit Data
External Interrupt Inputs
Fast Interrupt Input
Function
Voltage and ADC Regulator Power Supply
Input
Flash Power Supply
Core Power Supply
PLL
Main Oscillator Output
PLL Filter
JTAG Selection
Flash and NVM Configuration Bits Erase
Command
Microcontroller Reset
Debug Receive Data
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
1.85V nominal
No pull-up resistor
Comments
3.0 to 3.6V
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
Pull-down resistor
Pull-down resistor
Open-drain with pull-Up resistor
Pull-down resistor
IRQ1 not present on AT91SAM7S32/16
Pulled-up input at reset
PA0 - PA20 only on AT91SAM7S32/16
(1)
(1)
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6175FS–ATARM–03-Dec-07