LPC1857FET256,551 NXP Semiconductors, LPC1857FET256,551 Datasheet - Page 97
LPC1857FET256,551
Manufacturer Part Number
LPC1857FET256,551
Description
IC MCU 32BIT 1MB FLASH 256LBGA
Manufacturer
NXP Semiconductors
Series
LPC18xxr
Datasheets
1.LPC1830FET256551.pdf
(87 pages)
2.LPC1810FET100551.pdf
(2 pages)
3.LPC1810FET100551.pdf
(1164 pages)
Specifications of LPC1857FET256,551
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
150MHz
Connectivity
CAN, EBI/EMI, Ethernet, I²C, Microwire, SD/MMC, SPI, SSI, SSP, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, I²S, LCD, Motor Control PWM, POR, PWM, WDT
Number Of I /o
80
Program Memory Size
1MB (1M x 8)
Program Memory Type
FLASH
Eeprom Size
-
Ram Size
136K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 16x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
256-LBGA
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC1857FET256,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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User manual
Non-integer mode
In this mode the post-divider is enabled and the feedback divider is set to run directly on
the CCO clock, which gives the following frequency dividers:
Direct mode
In this mode, the post-divider is disabled and the CCO clock is sent directly to the output,
leading to the following frequency equation:
Power-down mode
In this mode, the internal current reference will be turned off, the oscillator and the
phase-frequency detector will be stopped and the dividers will enter a reset state. While in
Power-down mode, the lock output will be low, to indicate that the PLL is not in lock. When
the Power-down mode is terminated, the PLL will resume its normal operation and will
make the lock signal high once it has regained lock on the input clock.
All information provided in this document is subject to legal disclaimers.
FCCO
Rev. 00.13 — 20 July 2011
FCLKOUT
FCLKOUT
=
2
P
FCLKOUT
FCCO
FCLKOUT
Chapter 9: LPC18xx Clock Generation Unit (CGU)
=
=
FCCO
---------------- -
2
FCCO
=
P
M
=
=
M
FCLKIN
--------------------- -
=
=
------------
2
2
M
M
N
FCLKIN
----------------------
P
P
FCLKIN
--------------------- -
N
FCLKIN
----------------------
M
N
N
FCLKIN
--------------------- -
N
UM10430
© NXP B.V. 2011. All rights reserved.
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