AT91SAM7SE256B-CUR Atmel, AT91SAM7SE256B-CUR Datasheet - Page 630
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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Table 40-22. SAM7SE512/256 SPI Timings
Notes:
630
Symbol
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
0
1
2
3
4
5
6
7
8
9
10
11
2. 1.8V domain: V
3. t
1. 3.3V domain: V
SAM7SE512/256/32 Preliminary
CPMCK
Parameter
MISO Setup time before SPCK rises (master)
MISO Hold time after SPCK rises (master)
SPCK rising to MOSI Delay (master)
MISO Setup time before SPCK falls (master)
MISO Hold time after SPCK falls (master)
SPCK falling to MOSI Delay (master)
SPCK falling to MISO Delay (slave)
MOSI Setup time before SPCK rises (slave)
MOSI Hold time after SPCK rises (slave)
SPCK rising to MISO Delay (slave)
MOSI Setup time before SPCK falls (slave)
MOSI Hold time after SPCK falls (slave)
: Master Clock period in ns.
VDDIO
VDDIO
Figure 40-7. SPI Slave Mode with (CPOL = NCPHA = 0) or (CPOL= NCPHA= 1)
SPCK
MISO
MOSI
from 3.0V to 3.6V, maximum external capacitor = 40 pF.
from 1.65V to 1.95V, maximum external capacitor = 20 pF.
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
SPI
Conditions
9
SPI
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
10
26 + (t
34 + (t
26 + (t
34 + (t
SPI
Min
CPMCK
CPMCK
CPMCK
CPMCK
2.5
11
0
0
0
0
1
2
2
1
1
2
2
)/2
)/2
)/2
)/2
(3)
(3)
(3)
(3)
Max
22.5
30.5
10
10
23
28
7
7
6222F–ATARM–14-Jan-11
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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