SY75608 datasheet(18/44 Pages) MICROCHIP

18 / 44 page

SY75608/612

DS20006363D-page 18

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2021 - 2023 Microchip Technology Inc. and its subsidiaries

IN_SEL0

/I2C_SA_0

IPD

Input Select 0 or I2C Address

When SEL pin is low, this pin is Input Select 0 hardware control input.

When SEL pin is high, this pin together with pin 51 provides address for

I2C Bus. This pin is pulled down with 100 kΩ resistor when SEL is low.

IN_SEL1

IN_SEL0

OUTN

Input 0 (IN0)

Input 1 (IN1)

Crystal Oscillator or Overdrive

Crystal Bypass

IN_SEL1

/I2C_SA_1

IPD

Input Select 1 or Serial Interface Input

When SEL pin is low, this pin is Input Select 1 hardware control pin.

When SEL pin is high, this pin together with pin 52 provides address for

I2C Bus.

This pin is pulled-down with 100 kΩ resistor when SEL is low.

OE_TYPE0

/I2C_SCL

IPD/O

Output Signal Type or I2C Bus Clock

When SEL pin is low this pin and pin 49 selects output type.

OE_TYPE1

OE_TYPE0

Output [11:0] state when OE_n is

high

Both p and n are pulled low via

internal output termination resistors

per standard HCSL (PCIe)

Drive Differential Low: p is pulled low

and n is pulled high via output

termination resistors

Reserved

High-Z (Disabled)

When SEL pin is high this pin is I2C Bus Clock.

This pin is pulled-down with 100 kΩ resistor.

OE_TYPE1

/I2C_SDA

IPD/OOD

Output Signal Type or I2C Bus I/O Data

When SEL pin is low, this pin and pin 50 selects output type.

When SEL pin is high, this pin is an I/O pin (Input/Open-Drain) for I2C

Bus.

This pin is pulled down with 100 kΩ resistor.

OE0b

IPD

Output Enable Control

When the SEL pin is low and OEnb is low the output n where n = {0,..,11}

is active

When the SEL pin is low and OEnb is high the output is dependent on

OE_TYPE0/1 pins

OEnb is synchronous and it need four clock cycles before the

corresponding output gets enabled/disabled.

OEnb pins are pulled-down with 100 kΩ resistor.

OE1b

OE2b

OE3b

OE4b

OE5b

OE6b

OE7b

OE8b

OE9b

OE10b

OE11b

XIN

Crystal Oscillator Input or Crystal Bypass Mode or Crystal

Overdrive Mode

If crystal circuit is not used pull-down this pin or connect it to the ground.

XOUT

Crystal Oscillator Output

TABLE 3-2:

SY75612 PIN FUNCTION TABLE (CONTINUED)

Pin Number

Pin Name

Pin Type

Description

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