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LPC802 Datasheet(PDF) 18 Page - NXP Semiconductors |
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LPC802 Datasheet(HTML) 18 Page - NXP Semiconductors |
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18 / 83 page ![]() LPC802 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved. Product data sheet Rev. 1.6 — 27 April 2018 18 of 83 NXP Semiconductors LPC802 32-bit ARM Cortex-M0+ microcontroller • The switch matrix provides level shifter functionality to allow up to two selected signals to be routed from user-selected pins in one voltage domain to selected pins in the alternate domain. This feature can also be used on a single supply device if voltage level shifting is not required. Remark: The functionality of each I/O pin is flexible and is determined entirely through the switch matrix. See Section 9.9 for details. 9.8.1 Standard I/O pad configuration Figure 10 shows the possible pin modes for standard I/O pins with analog input function: • Digital output driver with configurable open-drain output. • Digital input: Weak pull-up resistor (PMOS device) enabled/disabled. • Digital input: Weak pull-down resistor (NMOS device) enabled/disabled. • Digital input: Repeater mode enabled/disabled. • Digital input: Programmable input digital filter selectable on all pins. • Analog input: Selected through the switch matrix. Fig 10. Standard I/O pad configuration PIN VDD VDD ESD VSS ESD strong pull-up strong pull-down VDD weak pull-up weak pull-down open-drain enable output enable repeater mode enable pull-up enable pull-down enable select data transmission gate inverter data output data input analog input SWM PINENABLE for analog input pin configured as digital output driver pin configured as digital input pin configured as analog input aaa-028401 |
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