SC18IS600(2006) View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

Manufacturer

SC18IS600
(Rev.:2006)

SPI to I2C-bus interface

NXP Semiconductors. 

NXP Semiconductors

SC18IS600/601

SPI to I2C-bus interface

6.2.1.2 Open-drain output configuration

The open-drain output configuration turns off all pull-ups and only drives the pull-down

transistor of the pin when the pin latch contains a logic 0. To be used as a logic output, a

pin configured in this manner must have an external pull-up, typically a resistor tied to

VDD. The pull-down for this mode is the same as for the quasi-bidirectional mode.

The open-drain pin configuration is shown in Figure 6.

An open-drain pin has a Schmitt-triggered input that also has a glitch suppression circuit.

pin latch data

VSS

input data

Fig 6. Open-drain output configuration

GPIO pin

glitch rejection

002aab883

6.2.1.3 Input-only configuration

The input-only pin configuration is shown in Figure 7. It is a Schmitt-triggered input that

also has a glitch suppression circuit.

input data

Fig 7. Input-only configuration

GPIO pin

glitch rejection

002aab884

6.2.1.4 Push-pull output configuration

The push-pull output configuration has the same pull-down structure as both the

open-drain and the quasi-bidirectional output modes, but provides a continuous strong

pull-up when the pin latch contains a logic 1. The push-pull mode may be used when

more source current is needed from a pin output.

The push-pull pin configuration is shown in Figure 8.

A push-pull pin has a Schmitt-triggered input that also has a glitch suppression circuit.

SC18IS600_601_3

Product data sheet

Rev. 03 — 13 December 2006

© NXP B.V. 2006. All rights reserved.

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