AT91SAM7SE256B-CUR Atmel, AT91SAM7SE256B-CUR Datasheet - Page 634
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 40-27. SAM7SE512/256 SMC Read Signals
Notes:
Table 40-28. SAM7SE32 SMC Read Signals
634
Symbol
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
Symbol
SMC
SMC
SMC
SMC
35
36
37
38
40
41
42
43
44
45
35
36
37
38
1. Early Read Protocol.
2. Standard Read Protocol.
3. n = Number of standard Wait States inserted.
4. h = Number of Hold Cycles inserted.
5. Not applicable when Address to Chip Select Setup Cycles are inserted.
SAM7SE512/256/32 Preliminary
Parameter
NRD High to NUB Change
NRD High to NLB/A0 Change
NRD High to A1-A22 Change
NRD High to Chip Select Inactive
Data Setup before NRD High
Data Hold after NRD High
Data Setup before NCS High
Data Hold after NCS High
NRD Minimum Pulse Width
NRD Minimum Pulse Width
Parameter
NRD High to NUB Change
NRD High to NLB/A0 Change
NRD High to A1-A22 Change
NRD High to Chip Select
Inactive
(1) (5)
(2) (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
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
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
(h
(h
(2
(2
(h
(h
(h
(h
(h
(h
(n +1)
(n +1)
x
x
(h
x
x
(h
(h
x
x
x
x
x
x
(h
(h
(h
(h
(h
t
t
n +1)
n +1)
CPMCK
CPMCK
t
t
t
t
t
t
x
x
x
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
x
x
x
x
x
t
t
t
Min
CPMCK
CPMCK
CPMCK
t
x
t
t
t
t
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
x
t
22.2
23.2
CPMCK
x
x
Min
t
) - 1.5
) - 2.5
1
1
35
37
CPMCK
0.5
0.5
) - 2
) - 2
) - 2
) - 3
) - 3
) - 3
0
0
0
0
(3)
(3)
) - 3.5
) - 1.5
) - 1.5
) - 3
) - 2
) - 2
) - 2
) - 2
x
x
(4)
(4)
(4)
(4)
(4)
(4)
- 1.5
(4)
(4)
t
t
- 1
CPMCK
CPMCK
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(3)
(3)
-
-
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
(h
x
x
x
x
x
x
x
x
x
x
t
t
t
x
x
x
x
CPMCK
CPMCK
CPMCK
x
x
t
t
t
t
t
t
t
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
t
t
t
t
t
t
CPMCK
CPMCK
CPMCK
CPMCK
Max
CPMCK
CPMCK
Max
)+ 1.5
)+ 1.5
)+ 6.5
)+ 7
)+ 3
)+ 8
)+ 2
)+ 2
)+ 1.5
)+ 3.5
)+ 1
)+ 1
)+ 1
)+ 2
)+ 1
)+ 2
6222F–ATARM–14-Jan-11
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
Units
Units
ns
ns
ns
ns
ns
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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