LPC2420FET208,551 NXP Semiconductors, LPC2420FET208,551 Datasheet - Page 40

IC ARM7 MCU 16BIT T208FBGA

LPC2420FET208,551

Manufacturer Part Number
LPC2420FET208,551
Description
IC ARM7 MCU 16BIT T208FBGA
Manufacturer
NXP Semiconductors
Series
LPC2400r
Datasheet

Specifications of LPC2420FET208,551

Core Processor
ARM7
Core Size
16/32-Bit
Speed
72MHz
Connectivity
EBI/EMI, I²C, Microwire, MMC, SPI, SSI, SSP, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
160
Program Memory Type
ROMless
Ram Size
82K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
208-TFBGA
Processor Series
LPC2420
Core
ARM7
Data Bus Width
16 bit, 32 bit
Data Ram Size
98 KB
Interface Type
SPI, I2C, I2S, USB, SSP
Maximum Clock Frequency
72 MHz
Number Of Programmable I/os
160
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Processor To Be Evaluated
ARM7TDMI-S
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Program Memory Size
-
Eeprom Size
-
Lead Free Status / Rohs Status
 Details
Other names
568-5216

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LPC2420FET208,551
Manufacturer:
MAX
Quantity:
65
Part Number:
LPC2420FET208,551
Manufacturer:
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Quantity:
10 000
NXP Semiconductors
LPC2420_60_5
Preliminary data sheet
7.24.1.1 Internal RC oscillator
7.24.1.2 Main oscillator
7.23.1 Features
7.24.1 Crystal oscillators
7.24 Clocking and power control
The VBAT pin supplies power only to the RTC and the Battery RAM. These two functions
require a minimum of power to operate, which can be supplied by an external battery.
When the CPU and the rest of chip functions are stopped and power removed, the RTC
can supply an alarm output that can be used by external hardware to restore chip power
and resume operation.
The LPC2420/2460 includes three independent oscillators. These are the Main Oscillator,
the Internal RC oscillator, and the RTC oscillator. Each oscillator can be used for more
than one purpose as required in a particular application. Any of the three clock sources
can be chosen by software to drive the PLL and ultimately the CPU.
Following reset, the LPC2420/2460 will operate from the Internal RC oscillator until
switched by software. This allows systems to operate without any external crystal and the
bootloader code to operate at a known frequency.
The IRC may be used as the clock source for the WDT, and/or as the clock that drives the
PLL and subsequently the CPU. The nominal IRC frequency is 4 MHz. The IRC is
trimmed to 1 % accuracy.
Upon power-up or any chip reset, the LPC2420/2460 uses the IRC as the clock source.
Software may later switch to one of the other available clock sources.
The main oscillator can be used as the clock source for the CPU, with or without using the
PLL. The main oscillator operates at frequencies of 1 MHz to 24 MHz. This frequency can
be boosted to a higher frequency, up to the maximum CPU operating frequency, by the
PLL. The clock selected as the PLL input is PLLCLKIN. The ARM processor clock
frequency is referred to as CCLK elsewhere in this document. The frequencies of
Measures the passage of time to maintain a calendar and clock.
Ultra low power design to support battery powered systems.
Provides Seconds, Minutes, Hours, Day of Month, Month, Year, Day of Week, and
Day of Year.
Dedicated 32 kHz oscillator or programmable prescaler from APB clock.
Dedicated power supply pin can be connected to a battery or to the main 3.3 V.
An alarm output pin is included to assist in waking up when the chip has had power
removed to all functions except the RTC and Battery RAM.
Periodic interrupts can be generated from increments of any field of the time registers,
and selected fractional second values. This enhancement enables the RTC to be
used as a System Timer.
2 kB data SRAM powered by VBAT.
RTC and Battery RAM power supply is isolated from the rest of the chip.
Rev. 05 — 24 February 2010
Flashless 16-bit/32-bit microcontroller
LPC2420/2460
© NXP B.V. 2010. All rights reserved.
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