LPC86X datasheet(53/99 Pages) NXP

53 / 99 page

LPC86x

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Product data sheet

Rev.3 — 28 April 2023

53 of 97

NXP Semiconductors

LPC86x

32-bit Arm Cortex-M0+ microcontroller

11.4 Peripheral power consumption

The supply current per peripheral is measured as the difference in supply current between

the peripheral block enabled and the peripheral block disabled in the SYSAHBCLKCFG

and PDRUNCFG (for analog blocks) registers. All other blocks are disabled in both

registers and no code accessing the peripheral is executed. Measured on a typical

sample at Tamb =25 C.

The supply currents are shown for FRO clock frequencies of 24 MHz and 48 MHz.

Table 15.

Power consumption for individual analog and digital blocks

Peripheral

Typical supply current in μA

Notes

System clock frequency =

n/a

24 MHz

48 MHz

FRO

System oscillator running; PLL off;

independent of main clock frequency; FRO =

24 MHz. FRO output disabled.

System oscillator at 12 MHz

243

FRO running; PLL off; independent of main

clock frequency.

Low power oscillator

FRO; PLL off; independent of main clock

frequency.

BOD

Flash

273

Main PLL

222

FRO (24 MHz) running; Main clock running at

fro_div (12 MHz)

CLKOUT

102

189

Main clock divided by 4 in the CLKOUTDIV

ROM

151

GPIO + pin interrupt/pattern

match

351

661

GPIO pins configured as outputs and set to

LOW. Direction and pin state are maintained if

the GPIO is disabled in the SYSAHBCLKCFG

SWM

135

252

IOCON

174

326

FlexTimer0

473

906

FlexTimer1

338

645

MRT

162

303

WWDT

5494-

I2C0

100

183

I3C0

307

587

SPI0

111

SPI1

121

USART0

156

USART1

143

USART2

166

Comparator ACMP

104

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