AT91SAM7SE512B-CUR Atmel, AT91SAM7SE512B-CUR Datasheet - Page 281
AT91SAM7SE512B-CUR
Manufacturer Part Number
AT91SAM7SE512B-CUR
Description
IC ARM7 MUC FLASH 512K 144-LFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM7SE256-AU.pdf
(673 pages)
Specifications of AT91SAM7SE512B-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
512KB (512K 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
SAM7SE512
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
AT91SAM7SE512B
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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29.8
29.8.1
29.8.2
6222F–ATARM–14-Jan-11
Clock Switching Details
Master Clock Switching Timings
Clock Switching Waveforms
Table 29-1
selected clock to another one. This is in the event that the prescaler is de-activated. When the
prescaler is activated, an additional time of 64 clock cycles of the new selected clock has to be
added.
Table 29-1.
Figure 29-3. Switch Master Clock from Slow Clock to PLL Clock
To
Main Clock
SLCK
PLL Clock
Write PMC_MCKR
From
Master Clock
gives the worst case timings required for the Master Clock to switch from one
Slow Clock
PLL Clock
MCKRDY
Clock Switching Timings (Worst Case)
LOCK
PLLCOUNT x SLCK +
0.5 x Main Clock +
0.5 x Main Clock +
2.5 x PLLx Clock
Main Clock
4.5 x SLCK
4 x SLCK +
–
SAM7SE512/256/32 Preliminary
PLLCOUNT x SLCK
2.5 x PLL Clock +
2.5 x Main Clock
4 x SLCK +
5 x SLCK +
SLCK
–
PLLCOUNT x SLCK
2.5 x PLL Clock +
3 x PLL Clock +
3 x PLL Clock +
1 x Main Clock
4 x SLCK +
4 x SLCK +
PLL Clock
5 x SLCK
281
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