LPC4370 datasheet(54/150 Pages) NXP

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LPC4370

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Product data sheet

Rev. 2 — 21 October 2013

54 of 150

NXP Semiconductors

LPC4370

32-bit ARM Cortex-M4/M0 microcontroller

ADC pins

ADCHS_0

[9]

I; IA

12-bit high-speed ADC input channel 0.

ADCHS_1

[9]

I; IA

12-bit high-speed ADC input channel 1.

ADCHS_2

[9]

I; IA

12-bit high-speed ADC input channel 2.

ADCHS_3

[9]

I; IA

12-bit high-speed ADC input channel 3.

ADCHS_4

[9]

I; IA

12-bit high-speed ADC input channel 4.

ADCHS_5

[9]

I; IA

12-bit high-speed ADC input channel 5.

ADCHS_NEG

[9]

I; IA

I/O

12-bit high-speed ADC reference voltage output or negative differential

input.

ADC0_7

[9]

I; IA

10-bit ADC0 input channel 7.

RTC

RTC_ALARM

A11

[12]

RTC controlled output.

RTCX1

[9]

Input to the RTC 32 kHz ultra-low power oscillator circuit.

RTCX2

[9]

Output from the RTC 32 kHz ultra-low power oscillator circuit.

Crystal oscillator pins

XTAL1

[9]

Input to the oscillator circuit and internal clock generator circuits.

XTAL2

[9]

Output from the oscillator amplifier.

Power and ground pins

USB0_VDDA

3V3_DRIVER

Separate analog 3.3 V power supply for driver.

USB0

_VDDA3V3

USB 3.3 V separate power supply voltage.

USB0_VSSA

_TERM

Dedicated analog ground for clean reference for termination resistors.

USB0_VSSA

_REF

Dedicated clean analog ground for generation of reference currents and

voltages.

VDDA

Analog power supply and 10-bit ADC reference voltage.

VBAT

B10

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

VDDREG

F10,

F9,

L8,

E4,

E5,

Main regulator power supply. Tie the VDDREG and VDDIO pins to a

common power supply to ensure the same ramp-up time for both supply

voltages.

VPP

OTP programming voltage.

Table 3.

Pin description …continued

LCD, Ethernet, USB0, and USB1 functions are not available on all parts. See Table 2.

Symbol

Description

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