LPC1111FDH20SLASH002 datasheet(44/127 Pages) NXP

44 / 127 page

LPC111X

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Product data sheet

Rev. 9.2 — 26 March 2014

44 of 127

NXP Semiconductors

LPC1110/11/12/13/14/15

32-bit ARM Cortex-M0 microcontroller

[1]

Pin state at reset for default function: I = Input; O = Output; PU = internal pull-up enabled (pins pulled up to full VDD level (VDD = 3.3 V));

IA = inactive, no pull-up/down enabled.

[2]

5 V tolerant pad. 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. An external pull-up resistor is required on this pin for the Deep power-down mode. See Figure 52 for the

reset pad configuration.

[3]

5 V tolerant pad providing digital I/O functions with configurable pull-up/pull-down resistors and configurable hysteresis (see Figure 51).

[4]

I2C-bus pads compliant with the I2C-bus specification for I2C standard mode and I2C Fast-mode Plus. The pin requires an external

pull-up to provide output functionality. When power is switched off, this pin is floating and does not disturb the I2C lines. Open-drain

configuration applies to all functions on this pin.

[5]

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 51).

[6]

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

6; 29 -

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

ADC. Also used as the ADC reference voltage.

XTALIN

4[6]

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

voltage must not exceed 1.8 V.

XTALOUT

5[6]

Output from the oscillator amplifier.

VSS

Thermal pad. Connect to ground.

Table 11.

LPC1100XL series: LPC1111/12/13/14 pin description table (HVQFN33 package) …continued

Symbol

Start

logic

input

Type

Reset

state

[1]

Description

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