LPC1767FBD100,551 NXP Semiconductors, LPC1767FBD100,551 Datasheet - Page 52
![IC ARM CORTEX MCU 512K 100-LQFP](/photos/6/65/66516/568-100-lqfp_sot407-1_sml.jpg)
LPC1767FBD100,551
Manufacturer Part Number
LPC1767FBD100,551
Description
IC ARM CORTEX MCU 512K 100-LQFP
Manufacturer
NXP Semiconductors
Series
LPC17xxr
Datasheets
1.LPC1767FBD100551.pdf
(2 pages)
2.LPC1767FBD100551.pdf
(840 pages)
3.LPC1767FBD100551.pdf
(65 pages)
Specifications of LPC1767FBD100,551
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
100MHz
Connectivity
Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 3.6 V
Data Converters
A/D 8x12b, D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-LQFP
Processor Series
LPC17
Core
ARM Cortex M3
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2, MCB1760, MCB1760U, MCB1760UME
For Use With
622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
568-4967
935289808551
935289808551
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC1767FBD100,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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NXP Semiconductors
UM10360
User manual
4.6.8 PLL1 frequency calculation
4.6.9 Procedure for determining PLL1 settings
The PLL1 equations use the following parameters:
Table 35.
The PLL1 output frequency (when the PLL is both active and connected) is given by:
USBCLK = M × F
The CCO frequency can be computed as:
F
The PLL1 inputs and settings must meet the following criteria:
The PLL1 configuration for USB may be determined as follows:
Element
F
F
USBCLK
M
P
1. The desired PLL1 output frequency is USBCLK = 48 MHz.
2. Choose an oscillator frequency (F
3. Calculate the value of M to configure the MSEL1 bits. M = USBCLK / F
4. Find a value for P to configure the PSEL1 bits, such that F
CCO
•
•
•
OSC
CCO
F
USBCLK is 48 MHz.
F
multiple of F
24 MHz.
case, the possible values for M = 2, 3, or 4 (F
value written to the MSEL1 bits in PLL1CFG is M − 1 (see
frequency limits of 156 MHz to 320 MHz. F
2 × P. It follows that P = 2 is the only P value to yield F
value written to the PSEL1 bits in PLL1CFG is ‘01’ for P = 2 (see
OSC
CCO
= USBCLK × 2 × P or F
is in the range of 10 MHz to 25 MHz.
is in the range of 156 MHz to 320 MHz.
Elements determining PLL frequency
Description
the frequency from the crystal oscillator
the frequency of the PLL1 current controlled oscillator
the PLL1 output frequency (48 MHz for USB)
PLL1 Multiplier value from the MSEL1 bits in the PLL1CFG register
PLL1 Divider value from the PSEL1 bits in the PLL1CFG register
All information provided in this document is subject to legal disclaimers.
OSC
OSC
meaning that the possible values for F
or USBCLK = F
Rev. 2 — 19 August 2010
CCO
= F
OSC
CCO
Chapter 4: LPC17xx Clocking and power control
OSC
× M × 2 × P
). USBCLK must be the whole (non-fractional)
/ (2 × P)
CCO
OSC
is calculated using F
= 24 MHz, 16 MHz, or 12 MHz). The
CCO
OSC
CCO
Table
in the allowed range. The
are 12 MHz, 16 MHz, and
is within its defined
37).
Table
UM10360
© NXP B.V. 2010. All rights reserved.
CCO
OSC
36).
= USBCLK ×
. In this
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