AT91SAM7SE256B-CUR Atmel, AT91SAM7SE256B-CUR Datasheet - Page 632

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

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

40.8.4
Table 40-23.
Note:
Table 40-24.
Note:
Table 40-25. SAM7SE512/256 SMC Write Signals
632
Symbol
SMC
SMC
Symbol
SMC
SMC
Symbol
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
7
8
7
8
15
16
17
18
19
20
21
22
23
1. n = Number of standard Wait States inserted.
1. n = Number of standard Wait States inserted.
SAM7SE512/256/32 Preliminary
SMC Signals
Parameter
NWR High to NUB Change
NWR High to NLB/A0 Change
NWR High to A1 - A22 Change
NWR High to Chip Select Inactive
Data Out Valid before NWR High
(No Wait States)
Data Out Valid before NWR High
(Wait States)
Data Out Valid after NWR High
(No Wait States)
Data Out Valid after NWR High
(Wait States without Hold Cycles)
Data Out Valid after NWR High
(Wait States with Hold Cycles)
Parameter
NCS Minimum Pulse Width
(Address to Chip Select Setup)
NWAIT Minimum Pulse Width
Parameter
NCS Minimum Pulse Width
(Address to Chip Select Setup)
NWAIT Minimum Pulse Width
SAM7SE512/256 General-purpose SMC Signals
SAM7SE32 General-purpose SMC Signals
(3)
These timings are given for a maximum 10 pF load on SDCK and a maximum 50 pF load on the
databus.
.
(3))
(3)
(3)
(3)
(3)
(3)
(3)
(3)
Conditions
Conditions
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
(n + 1)
(n + 1)
(n + 1)
(n + 1)
x
x
x
x
t
t
t
t
t
t
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
Min
Min
h
h
0.5 * t
n
0.5 * t
0.5 * t
0.5 * t
n
0.5 * t
0.5 * t
x
x
x
x
t
t
t
CPMCK
CPMCK
CPMCK
t
- 2.5
- 3.0
- 2.5
- 5.0
CPMCK
CPMCK
CPMCK
CPMCK
Min
7.0
9.5
7.5
8.5
7.0
9.0
CPMCK
CPMCK
CPMCK
10
8
(1)
(1)
(1)
(1)
- 5.7
- 8.0
- 0.5
- 1
- 0.5
- 5.7
- 5.2
- 1
- 8
- 8
(1)
(1)
(2)
(2)
Max
Max
Max
6222F–ATARM–14-Jan-11
Units
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