LPC1111 datasheet(14/59 Pages) NXP

14 / 59 page

LPC1111_12_13_14_1

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Product data sheet

Rev. 01 — 16 April 2010

14 of 59

NXP Semiconductors

LPC1111/12/13/14

32-bit ARM Cortex-M0 microcontroller

[1]

See Figure 27 for the reset pad configuration. RESET functionality is not available in Deep power-down mode. Use the WAKEUP pin to

reset the chip and wake up from Deep power-down mode.

[2]

5 V tolerant pad providing digital I/O functions with configurable pull-up/pull-down resistors and configurable hysteresis (see Figure 26).

[3]

I2C-bus pads compliant with the I2C-bus specification for I2C standard mode and I2C Fast-mode Plus.

[4]

5 V tolerant pad providing digital I/O functions with configurable pull-up/pull-down resistors, configurable hysteresis, and analog input.

When configured as a ADC input, digital section of the pad is disabled and the pin is not 5 V tolerant (see Figure 26).

[5]

When the system oscillator is not used, connect XTALIN and XTALOUT as follows: XTALIN can be left floating or can be grounded

(grounding is preferred to reduce susceptibility to noise). XTALOUT should be left floating.

VDD

1; 12

3.3 V supply voltage to the internal regulator, the external rail, and the ADC.

Also used as the ADC reference voltage.

XTALIN

10[5]

Input to the oscillator circuit and internal clock generator circuits. Input

voltage must not exceed 1.8 V.

XTALOUT

11[5]

Output from the oscillator amplifier.

VSS

9; 43

Ground.

Table 4.

LPC1114 pin description table (PLCC44 package) …continued

Symbol

Type

Description

LPC1111 Datasheet(PDF) 14 Page - NXP Semiconductors