Datasheet

Product data sheet Rev. 5 — 6 June 2012 45 of 74

NXP Semiconductors

LPC1311/13/42/43

32-bit ARM Cortex-M3 microcontroller

9.5 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 or

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

and no code is executed. Measured on a typical sample at T

amb

=25 °C. Unless noted

otherwise, the system oscillator and PLL are running in both measurements.

The supply currents are shown for system clock frequencies of 12 MHz, 48 MHz, and

72 MHz.

Fig 18. Typical supply current versus temperature in Deep power-down mode

(LPC1311/01 and LPC1313/01)

002aag239

0.2

0.4

0.6

(µA)

temperature (°C)

˗40 853510 60˗15

VDD = 3.6 V

3.3 V

2.0 V

Table 11. Power consumption for individual analog and digital blocks

Peripheral Typical supply current in mA Notes

n/a 12 MHz 48 MHz 72 MHz

IRC 0.23 - - - System oscillator running; PLL off; independent of main clock

frequency.

System oscillator

at 12 MHz

0.23 - - - IRC running; PLL off; independent of main clock frequency.

Watchdog

oscillator at

500 kHz/2

0.002 - - - System oscillator running; PLL off; independent of main clock

frequency.

BOD 0.045 - - - Independent of main clock frequency.

Main or USB PLL - 0.26 0.34 0.48 -

ADC - 0.07 0.25 0.37 -

CLKOUT - 0.14 0.56 0.82 Main clock divided by 4 in the CLKOUTDIV register.

CT16B0 - 0.01 0.05 0.08 -

CT16B1 - 0.01 0.04 0.06 -

CT32B0 - 0.01 0.05 0.07 -

CT32B1 - 0.01 0.04 0.06 -