AT91SAM7SE256B-AUR Atmel, AT91SAM7SE256B-AUR Datasheet - Page 183
AT91SAM7SE256B-AUR
Manufacturer Part Number
AT91SAM7SE256B-AUR
Description
IC ARM7 MCU FLASH 256K 128-LQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM7SE256-AU.pdf
(673 pages)
Specifications of AT91SAM7SE256B-AUR
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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22.6.7.2
Figure 22-32. Read Accesses in Standard Read Protocol with Setup and Hold
Note:
Figure 22-33. Write Accesses with Setup and Hold
Note:
6222F–ATARM–14-Jan-11
NWR0/NWE
NWR0/NWE
NWR1/NUB
NWR1/NUB
1. Read access, memory data bus width = 8, RWSETUP = 1, RWHOLD = 1,WSEN= 1, NWS = 0
1. Write access, memory data bus width = 8, RWSETUP = 1, RWHOLD = 1, WSEN = 1, NWS = 0
A0/NLB
A0/NLB
D[15:0]
A[22:1]
A[22:1]
D[15:0]
MCK
NRD
NCS
MCK
NRD
NCS
Accesses with Setup and Hold
3000
00d2b
008cb
e59f
e3a0
Figure 22-32
Hold Cycles.
Setup
Setup
and
Figure 22-33
0001
0605
(1)
Hold
show an example of read and write accesses with Setup and
Hold
SAM7SE512/256/32 Preliminary
00028
00082
Setup
Setup
(1)
0606
Hold
0002
Hold
008cc
00d2c
183
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