LPC2157 datasheet(7/45 Pages) NXP

Part #	LPC2157

Description	Single-chip 16-bit/32-bit microcontrollers; 512 kB flash, with 32 segment x 4 LCD driver

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Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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7 / 45 page

LPC2157_2158_2

Product data sheet

Rev. 02 — 9 February 2009

7 of 45

NXP Semiconductors

LPC2157/2158

Single-chip 16-bit/32-bit microcontrollers

P0[15]/RI1/

EINT2/AD1[5]

28[4]

I/O

P0[15] — General purpose input/output digital pin (GPIO).

I

RI1 — Ring Indicator input for UART1.

I

EINT2 — External interrupt 2 input.

I

AD1[5] — ADC 1, input 5.

P0[16]/EINT0/

MAT0[2]/CAP0[2]

29[2]

I/O

P0[16] — General purpose input/output digital pin (GPIO).

I

EINT0 — External interrupt 0 input.

O

MAT0[2] — Match output for Timer 0, channel 2.

I

CAP0[2] — Capture input for Timer 0, channel 2.

P0[17]/CAP1[2]/

SCK1/MAT1[2]

30[1]

I/O

P0[17] — General purpose input/output digital pin (GPIO).

I

CAP1[2] — Capture input for Timer 1, channel 2.

I/O

SCK1 — Serial Clock for SSP. Clock output from master or input to slave.

O

MAT1[2] — Match output for Timer 1, channel 2.

P0[18]/CAP1[3]/

MISO1/MAT1[3]

79[1]

I/O

P0[18] — General purpose input/output digital pin (GPIO).

I

CAP1[3] — Capture input for Timer 1, channel 3.

I/O

MISO1 — Master In Slave Out for SSP. Data input to SPI master or data output

from SSP slave.

O

MAT1[3] — Match output for Timer 1, channel 3.

P0[19]/MAT1[2]/

MOSI1/CAP1[2]

80[1]

I/O

P0[19] — General purpose input/output digital pin (GPIO).

O

MAT1[2] — Match output for Timer 1, channel 2.

I/O

MOSI1 — Master Out Slave In for SSP. Data output from SSP master or data

input to SSP slave.

I

CAP1[2] — Capture input for Timer 1, channel 2.

P0[20]/MAT1[3]/

SSEL1/EINT3

81[2]

I/O

P0[20] — General purpose input/output digital pin (GPIO).

O

MAT1[3] — Match output for Timer 1, channel 3.

I

SSEL1 — Slave Select for SSP. Selects the SSP interface as a slave.

I

EINT3 — External interrupt 3 input.

P0[21]/PWM5/

AD1[6]/CAP1[3]

91[4]

I/O

P0[21] — General purpose input/output digital pin (GPIO).

O

PWM5 — Pulse Width Modulator output 5.

I

AD1[6] — ADC 1, input 6.

I

CAP1[3] — Capture input for Timer 1, channel 3.

P0[22]/AD1[7]/

CAP0[0]/

MAT0[0]

92[4]

I/O

P0[22] — General purpose input/output digital pin (GPIO).

I

AD1[7] — ADC 1, input 7.

I

CAP0[0] — Capture input for Timer 0, channel 0.

O

MAT0[0] — Match output for Timer 0, channel 0.

P0[23]

84[1]

I/O

P0[23] — General purpose input/output digital pin (GPIO).

P0[25]/AD0[4]/

AOUT

97[5]

I/O

P0[25] — General purpose input/output digital pin (GPIO).

I

AD0[4] — ADC 0, input 4.

O

AOUT — DAC output.

P0[26]/AD0[5]

98[7]

I/O

P0[26] — General purpose input/output digital pin (GPIO).

I

AD0[5] — ADC 0, input 5. This analog input is always connected to its pin.

Table 2.

Pin description LPC2157 …continued

Symbol

Type

Description

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