AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 8

• 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.
Note:
Signal Name
TWD
TWCK
AD0-AD3
AD4-AD7
ADTRG
ADVREF
PGMEN0-PGMEN2
PGMM0-PGMM3
PGMD0-PGMD15
PGMRDY
PGMNVALID
PGMNOE
PGMCK
PGMNCMD
1. Refer to
Signal Description List (Continued)
Section 6. “I/O Lines Considerations” on page
Function
Two-wire Serial Data
Two-wire Serial Clock
Analog Inputs
Analog Inputs
ADC Trigger
ADC Reference
Programming Enabling
Programming Mode
Programming Data
Programming Ready
Data Direction
Programming Read
Programming Clock
Programming Command
Fast Flash Programming Interface
Analog-to-Digital Converter
Two-Wire Interface
14.
Analog
Analog
Analog
Output
Output
Type
Input
Input
Input
Input
Input
Input
I/O
I/O
I/O
Active
Level
High
Low
Low
Low
SAM7S Series [DATASHEET]
Comments
Digital pulled-up inputs at reset
Analog Inputs
PGMD0-PGMD7 only on SAM7S32/16
6175M–ATARM–26-Oct-12
8