AT91SAM7X128B-AU Atmel, AT91SAM7X128B-AU Datasheet - Page 198
AT91SAM7X128B-AU
Manufacturer Part Number
AT91SAM7X128B-AU
Description
IC MCU 128KB FLASH 100LQFP
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7X128B-AU
Core Processor
ARM7
Core Size
16/32-Bit
Speed
55MHz
Connectivity
CAN, Ethernet, I²C, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
62
Program Memory Size
128KB (128K 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
100-LQFP
Processor Series
AT91SAMx
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
JTAG, SPI, UART
Maximum Clock Frequency
55 MHz
Number Of Timers
1
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, KSK-AT91SAM7X-PL, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM7X-EK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Controller Family/series
AT91SAM7xxxxx
No. Of I/o's
62
Ram Memory Size
32KB
Cpu Speed
55MHz
No. Of Timers
1
Rohs Compliant
Yes
Cpu Family
91S
Device Core
ARM7TDMI
Device Core Size
32b
Frequency (max)
55MHz
Total Internal Ram Size
32KB
# I/os (max)
62
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
1.8/3.3V
Operating Supply Voltage (max)
1.95/3.6V
Operating Supply Voltage (min)
1.65/3V
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
100
Package Type
LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7X128B-AU
Manufacturer:
Atmel
Quantity:
1 929
Part Number:
AT91SAM7X128B-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 198 of 687
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25.9.9
Register Name:
Access Type:
Possible limitations on PLL input frequencies and multiplier factors should be checked before using the PMC.
• DIV: Divider
• PLLCOUNT: PLL Counter
Specifies the number of slow clock cycles before the LOCK bit is set in PMC_SR after CKGR_PLLR is written.
• OUT: PLL Clock Frequency Range
To optimize clock performance, this field must be programmed as specified in “PLL Characteristics” in the Electrical Char-
acteristics section of the product datasheet.
• MUL: PLL Multiplier
0 = The PLL is deactivated.
1 up to 2047 = The PLL Clock frequency is the PLL input frequency multiplied by MUL+ 1.
• USBDIV: Divider for USB Clock
198
DIV
0
1
2 - 255
31
23
15
–
7
0
0
1
1
SAM7X512/256/128 Preliminary
PMC Clock Generator PLL Register
OUT
USBDIV
30
22
14
CKGR_PLLR
Read-write
–
6
0
1
0
1
29
21
13
5
USBDIV
Divider Selected
Divider output is 0
Divider is bypassed
Divider output is the selected clock divided by DIV.
Divider for USB Clock(s)
Divider output is PLL clock output.
Divider output is PLL clock output divided by 2.
Divider output is PLL clock output divided by 4.
Reserved.
28
20
12
4
MUL
DIV
27
19
11
3
–
PLLCOUNT
26
18
10
2
MUL
25
17
9
1
6120I–ATARM–06-Apr-11
24
16
8
0
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