L9963E datasheet(6/184 Pages) STMICROELECTRONICS

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2.2

Pin description

Figure 3. Pin connections (top view)

L9963E

Table 1. Pin function

Pin #

Pin name

Description

I/O type(1)

GPIO8_ SCK

General-purpose I/O / Serial clock input (SPI). Its configuration is locked to

Digital Input in case SPIEN = 1. Refer to Section 4.9 General purpose I/O:

GPIOs. Generally used to sense NTCs when not configured as SPI. Refer to

Section 6.9 NTC analog front end.

DO/DI/AI

GPIO9_ SDO

General-purpose I/O / Serial data output (SPI). Its configuration is locked to

Digital Output in case SPIEN = 1. Refer to Section 4.9 General purpose I/O:

GPIOs. Generally used to sense NTCs when not configured as SPI. Refer to

Section 6.9 NTC analog front end.

DO/DI/AI

ISOLp_SDI

Non-inverting, low-side isolated serial communication port (isolated SPI) / Serial data

input (SPI). Its configuration is locked to Digital Input in case SPIEN = 1. Refer to

Section 4.2 Serial communication interface. When used as isolated SPI, refer to

Section 6.8 ISO lines circuit.

DI/AIO

ISOLm_NCS

Inverting, low-side isolated serial communication port (isolated SPI) / Active low,

Chip-Select input (SPI). Its configuration is locked to Digital Input in case SPIEN =

1. Refer to Section 4.2 Serial communication interface. When used as isolated SPI,

refer to Section 6.8 ISO lines circuit.

DI/AIO

L9963E

Pin description

DS13636 - Rev 12

page 6/184

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