AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 571

• 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 37-15. I/O Characteristics (Continued)
Notes:
Symbol
PulseminL
FreqMax
PulseminH
PulseminL
1. Pin Group 1 = PA17 to PA20
2. Pin Group 2 = PA4 to PA16 and PA21 to PA31 (PA21 to PA31 are not present on SAM7S32)
3. Pin Group 3 = PA0 to PA3
4. 3.3V domain: V
5. 1.8V domain: V
I03
I02
I03
I03
Parameter
Pin Group 2
Pin Group 3
Pin Group 3
Pin Group 3
VDDIO
VDDIO
(2)
(3)
(3)
(3)
frequency
Low Level Pulse Width
High Level Pulse Width
Low Level Pulse Width
from 3.0V to 3.6V, maximum external capacitor = 40pF
from 1.65V to 1.95V, maximum external capacitor = 20pF
Conditions
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
(4)
(5)
(4)
(5)
(4)
(5)
(4)
(5)
Min
SAM7S Series [DATASHEET]
16.6
16.6
20
36
45
45
Max
6175M–ATARM–26-Oct-12
30
11
Units
MHz
MHz
ns
ns
ns
ns
ns
ns
571