PIN CONFIGURATIONOF

LPC2148

Lpc 2144/6//8 consists 45 GPIO functionality in is 2

port which as

1. Port0 (P0.0 to P0.31)- 24,26,27 are invisible pins,

remaining 29 are visible i/o pins.

2. Port1 (P1.16 to P0.31)- 16 pins are visible and 16

pins are invisible(P1.0-P1.15)

It consist of 19 different peripherals such as

FUNCTION PIN TYPE & DESCRIPTION

D+ 10 INPUT/OUTPUT(USB bidirectional D+ line)

D- 11 INPUT/OUTPUT(USB bidirectional D- line)

XTAL1 62

XTAL2 61

RTXC1 3 INPUT(Input to the RTC oscillator circuit)

RTXC2 5 OUTPUT(output to the RTC oscillator circuit)

VSS 6, 18 ,25,42,50

VSSA 52 INPUT(Analog Ground: 0 V reference)

VDD 23, 43, 51 (power supply)

• VDDA 7 INPUT(analog power supply)

• VREF 63 INPUT(A/D Converter Reference)

• VBAT 49 INPUT(RTC power supply)