Product data
LPC1769_68_67_66_65_64_63 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 9.5 — 24 June 2014 53 of 89
NXP Semiconductors
LPC1769/68/67/66/65/64/63
32-bit ARM Cortex-M3 microcontroller
11.2 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 PCONP register. All
other blocks are disabled and no code is executed. Measured on a typical sample at
T
amb
=25C. The peripheral clock PCLK = CCLK/4.
[1] The combined current of several peripherals running at the same time can be less than the sum of each individual peripheral current
measured separately.
Table 9. Power consumption for individual analog and digital blocks
Peripheral Conditions Typical supply current in mA;
CCLK =
Notes
12 MHz 48 MHz 100 MHz
Timer 0.03 0.11 0.23 Average current per timer
UART 0.07 0.26 0.53 Average current per UART
PWM 0.05 0.20 0.41
Motor control
PWM
0.05 0.21 0.42
I2C 0.02 0.08 0.16 Average current per I2C
SPI 0.02 0.06 0.13
SSP1 0.04 0.16 0.32
ADC PCLK = 12 MHz for CCLK = 12 MHz
and 48 MHz; PCLK = 12.5 MHz for
CCLK = 100 MHz
2.12 2.09 2.07
CAN PCLK = CCLK/6 0.13 0.49 1.00 Average current per CAN
CAN0, CAN1,
acceptance filter
PCLK = CCLK/6 0.22 0.85 1.73 Both CAN blocks and
acceptance filter
[1]
DMA PCLK = CCLK 1.33 5.10 10.36
QEI 0.05 0.20 0.41
GPIO 0.33 1.27 2.58
I2S 0.09 0.34 0.70
USB and PLL1 0.94 1.32 1.94
Ethernet Ethernet block enabled in the PCONP
register; Ethernet not connected.
0.49 1.87 3.79
Ethernet
connected
Ethernet initialized, connected to
network, and running web server
example.
- - 5.19