LPC2101FBD48 View Datasheet(PDF) -

NXP Semiconductors

LPC2101/02/03

Single-chip 16-bit/32-bit microcontrollers

Table 3.

Symbol

VDD(1V8)

Pin description …continued

Pin

Type

5

I

VDD(3V3)

VBAT

17, 40

I

4

I

Description

1.8 V core power supply: This is the power supply voltage for internal

circuitry and the on-chip PLL.

3.3 V pad power supply: This is the power supply voltage for the I/O ports.

RTC power supply: 3.3 V on this pin supplies the power to the RTC.

[1] 5 V tolerant pad providing digital I/O functions with TTL levels and hysteresis and 10 ns slew rate control.

[2] Open-drain 5 V tolerant digital I/O I2C-bus 400 kHz specification compatible pad. It requires external pull-up to provide an output

functionality. Open-drain configuration applies to ALL functions on that pin.

[3] 5 V tolerant pad providing digital I/O (with TTL levels and hysteresis and 10 ns slew rate control) and analog input function. If configured

for an input function, this pad utilizes built-in glitch filter that blocks pulses shorter than 3 ns. When configured as an ADC input, digital

section of the pad is disabled.

[4] 5 V tolerant pad providing digital I/O functions with TTL levels and hysteresis and 10 ns slew rate control. If configured for an input

function, this pad utilizes built-in glitch filter that blocks pulses shorter than 3 ns.

[5] Open-drain 5 V tolerant digital I/O I2C-bus 400 kHz specification compatible pad. It requires external pull-up to provide an output

functionality. Open-drain configuration applies only to I2C function on that pin.

[6] Pad provides special analog functionality.

LPC2101_02_03_3

Product data sheet

Rev. 03 — 7 October 2008

© NXP B.V. 2008. All rights reserved.

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