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LPC2142
(Rev.:2007)

Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC

NXP Semiconductors. 

NXP Semiconductors

LPC2141/42/44/46/48

Single-chip 16-bit/32-bit microcontrollers

Table 3. Pin description …continued

Symbol

Pin

Type

P0.9/RXD1/

34[2]

I/O

PWM6/EINT3

I

O

I

P0.10/RTS1/ 35[4]

I/O

CAP1.0/AD1.2

O

I

I

P0.11/CTS1/ 37[3]

I/O

CAP1.1/SCL1

I

I

I/O

P0.12/DSR1/ 38[4]

I/O

MAT1.0/AD1.3

I

O

I

P0.13/DTR1/ 39[4]

I/O

MAT1.1/AD1.4

O

O

I

P0.14/DCD1/ 41[3]

I/O

EINT1/SDA1

I

I

I/O

P0.15/RI1/

45[4]

I/O

EINT2/AD1.5

I

I

I

P0.16/EINT0/ 46[2]

I/O

MAT0.2/CAP0.2

I

O

I

P0.17/CAP1.2/ 47[1]

I/O

SCK1/MAT1.2

I

I/O

O

Description

P0.9 — General purpose input/output digital pin (GPIO)

RXD1 — Receiver input for UART1

PWM6 — Pulse Width Modulator output 6

EINT3 — External interrupt 3 input

P0.10 — General purpose input/output digital pin (GPIO)

RTS1 — Request to Send output for UART1, LPC2144/46/48 only

CAP1.0 — Capture input for Timer 1, channel 0

AD1.2 — ADC 1, input 2, available in LPC2144/46/48 only

P0.11 — General purpose input/output digital pin (GPIO)

CTS1 — Clear to Send input for UART1, available in LPC2144/46/48 only

CAP1.1 — Capture input for Timer 1, channel 1

SCL1 — I2C1 clock input/output, open-drain output (for I2C-bus compliance)

P0.12 — General purpose input/output digital pin (GPIO)

DSR1 — Data Set Ready input for UART1, available in LPC2144/46/48 only

MAT1.0 — Match output for Timer 1, channel 0

AD1.3 — ADC input 3, available in LPC2144/46/48 only

P0.13 — General purpose input/output digital pin (GPIO)

DTR1 — Data Terminal Ready output for UART1, LPC2144/46/48 only

MAT1.1 — Match output for Timer 1, channel 1

AD1.4 — ADC input 4, available in LPC2144/46/48 only

P0.14 — General purpose input/output digital pin (GPIO)

DCD1 — Data Carrier Detect input for UART1, LPC2144/46/48 only

EINT1 — External interrupt 1 input

SDA1 — I2C1 data input/output, open-drain output (for I2C-bus compliance)

Note: LOW on this pin while RESET is LOW forces on-chip boot loader to

take over control of the part after reset

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

RI1 — Ring Indicator input for UART1, available in LPC2144/46/48 only

EINT2 — External interrupt 2 input

AD1.5 — ADC 1, input 5, available in LPC2144/46/48 only

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

EINT0 — External interrupt 0 input

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

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

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

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

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

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

LPC2141_42_44_46_48_3

Product data sheet

Rev. 03 — 19 October 2007

© NXP B.V. 2007. All rights reserved.

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