AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 7

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

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

Table 3-1.
Signal Name
DDM
DDP
SCK0 - SCK1
TXD0 - TXD1
RXD0 - RXD1
RTS0 - RTS1
CTS0 - CTS1
DCD1
DTR1
DSR1
RI1
TD
RD
TK
RK
TF
RF
TCLK0 - TCLK2
TIOA0 - TIOA2
TIOB0 - TIOB2
PWM0 - PWM3
MISO
MOSI
SPCK
NPCS0
NPCS1-NPCS3
Signal Description List (Continued)
Function
USB Device Port Data -
USB Device Port Data +
Serial Clock
Transmit Data
Receive Data
Request To Send
Clear To Send
Data Carrier Detect
Data Terminal Ready
Data Set Ready
Ring Indicator
Transmit Data
Receive Data
Transmit Clock
Receive Clock
Transmit Frame Sync
Receive Frame Sync
External Clock Inputs
I/O Line A
I/O Line B
PWM Channels
Master In Slave Out
Master Out Slave In
SPI Serial Clock
SPI Peripheral Chip Select 0
SPI Peripheral Chip Select 1 to 3
Synchronous Serial Controller
USB Device Port
PWM Controller
Timer/Counter
USART
SPI
Analog
Analog
Output
Output
Output
Output
Output
Type
Input
Input
Input
Input
Input
Input
Input
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Active
Level
Low
Low
SAM7S Series [DATASHEET]
Comments
not present on SAM7S32/16
not present on SAM7S32/16
SCK1 not present on SAM7S32/16
TXD1 not present on SAM7S32/16
RXD1 not present on SAM7S32/16
RTS1 not present on SAM7S32/16
CTS1 not present on SAM7S32/16
not present on SAM7S32/16
not present on SAM7S32/16
not present on SAM7S32/16
not present on SAM7S32/16
TCLK1 and TCLK2 not present on
SAM7S32/16
TIOA2 not present on SAM7S32/16
TIOB2 not present on SAM7S32/16
6175M–ATARM–26-Oct-12
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