AT91SAM7SE256B-CUR Atmel, AT91SAM7SE256B-CUR Datasheet - Page 138

• Manufacturer Part Number: AT91SAM7SE256B-CUR
• Description: IC ARM7 MCU FLASH 256K 128-LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7SE256B-CUR

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: EBI/EMI, I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 88
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Processor Series: SAM7SE256
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: SPI, USB
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 88
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 85 C
• Processor To Be Evaluated: AT91SAM7SE256B
• Supply Current (max): 60 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

21.4
21.4.1
Table 21-3.
138
Pin
Controller
D0 - D7
D8 - D15
D16 - D31
A0/NBS0
A1/NBS2
A2 - A9
A10
A11
SDA10
A12
A13 - A14
A15
A16/BA0
A17/BA1
Application Example
SAM7SE512/256/32 Preliminary
Hardware Interface
EBI Pins and External Static Device Connections
8-bit Static
A13 - A14
D0 - D7
Device
A2 - A9
The connection of some signals through the Mux logic is not direct and depends on the Memory
Controller in use at the moment.
Table 21-2
Table 21-2.
Table 21-3
for each Memory Controller
A10
A11
A12
A15
A16
A17
A0
A1
–
–
–
EBI Pins
NWR1/NBS1/CFIOR
A0/NBS0
A1/NBS2
A[11:2]
SDA10
A12
A[14:13]
A[22:15]
D[31:16]
D[15:0]
A12 - A13
2 x 8-bit
Devices
D8 - D15
details the connections between the two Memory Controllers and the EBI pins.
details the connections to be applied between the EBI pins and the external devices
D0 - D7
A1 - A8
Static
SMC
A10
A11
A14
A15
A16
A0
A9
–
–
–
EBI Pins and Memory Controllers I/O Lines Connections
A12 - A13
D8 - D15
D0 - D7
Device
A1 - A8
16-bit
Static
NLB
A10
A11
A14
A15
A16
A0
A9
–
–
Pins of the Interfaced Device
SDRAMC I/O Lines
NBS1
Not Supported
Not Supported
A[9:0]
A10
Not Supported
A[12:11]
Not Supported
D[31:16]
D[15:0]
SDRAM
SDRAMC
D16 - D31
A11 - A12
D8 - D15
D0 - D7
A0 - A7
DQM0
DQM2
A10
BA0
BA1
A8
A9
–
–
(1)
CompactFlash
D0 - D7
D8 - 15
A2 - A9
A10
A0
A1
–
–
–
–
–
–
–
–
SMC I/O Lines
NWR1/NUB
A0/NLB
A1
A[11:2]
Not Supported
A12
A[14:13]
A[22:15]
Not Supported
D[15:0]
True IDE Mode
CompactFlash
SMC
D0 - D7
A2 - A9
D8 - 15
A10
A0
A1
–
–
–
–
–
–
–
–
6222F–ATARM–14-Jan-11
I/O8 - I/O15
I/O0 - I/O7
Flash
NAND
–
–
–
–
–
–
–
–
–
–
–
–
(2)
(3)