AT91SAM7SE256B-CUR Atmel, AT91SAM7SE256B-CUR Datasheet - Page 631

IC ARM7 MCU FLASH 256K 128-LQFP

AT91SAM7SE256B-CUR

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

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
Part Number:
AT91SAM7SE256B-CUR
Manufacturer:
Atmel
Quantity:
10 000
SAM7SE32 SPI Timings
Notes:
6222F–ATARM–14-Jan-11
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
1. 3.3V domain: V
2. 1.8V domain: V
3. t
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
Note that in SPI master mode the ATSAM7SE512/256/32 does not sample the data (MISO) on
the opposite edge where data clocks out (MOSI) but the same edge is used as shown in
40-4
from 3.0V to 3.6V, maximum external capacitor = 40 pF.
from 1.65V to 1.95V, maximum external capacitor = 20 pF.
and
Figure
40-5.
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
Conditions
SAM7SE512/256/32 Preliminary
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(2)
26 + (t
45 + (t
26 + (t
34 + (t
Min
CPMCK
CPMCK
CPMCK
CPMCK
0
0
0
0
1
1
3
3
1
1
3
3
)/2
)/2
)/2
)/2
(3)
(3)
(3)
(3)
Max
23.7
12
42
24
40
4
4
6
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Figure
631

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