AT91SAM7SE256B-CUR Atmel, AT91SAM7SE256B-CUR Datasheet - Page 138
AT91SAM7SE256B-CUR
Manufacturer Part Number
AT91SAM7SE256B-CUR
Description
IC ARM7 MCU FLASH 256K 128-LQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM7SE256-AU.pdf
(673 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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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)
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