Product Information

PCA6408APW,118

PCA6408APW,118 electronic component of NXP

Datasheet
Interface - I/O Expanders 8bit IO Expander Low Voltage TSSOP

Manufacturer: NXP
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Price (USD)

1: USD 1.5065 ea
Line Total: USD 1.5065

15755 - Global Stock
Ships to you between
Thu. 11 Apr to Mon. 15 Apr
MOQ: 1  Multiples: 1
Pack Size: 1
Availability Price Quantity
15707 - Global Stock


Ships to you between Thu. 11 Apr to Mon. 15 Apr

MOQ : 1
Multiples : 1
1 : USD 1.5065
10 : USD 1.311
100 : USD 1.0419
500 : USD 0.9281
1000 : USD 0.7786
2500 : USD 0.7199
5000 : USD 0.7199
10000 : USD 0.7153
25000 : USD 0.713

     
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PCA6408A 2 Low-voltage, 8-bit I C-bus and SMBus I/O expander with interrupt output, reset, and configuration registers Rev. 1 27 September 2012 Product data sheet 1. General description The PCA6408A is an 8-bit general purpose I/O expander that provides remote I/O 2 expansion for most microcontroller families via the I C-bus interface. NXP I/O expanders provide a simple solution when additional I/Os are needed while keeping interconnections to a minimum, for example, in battery-powered mobile applications for interfacing to sensors, push buttons, keypad, etc. In addition to providing a flexible set of GPIOs, it simplifies interconnection of a processor running at one voltage level to I/O devices operating at a different (usually higher) voltage level. The PCA6408A has built-in level shifting feature that makes these devices extremely flexible in mixed signal environments where communication between incompatible I/O voltages is required. Its wide V range of 1.65 V to 5.5 V on the dual power rail allows seamless DD communications with next-generation low voltage microprocessors and microcontrollers on the interface side (SDA/SCL) and peripherals at a higher voltage on the port side. There are two supply voltages for PCA6408A: V and V . V DD(I2C-bus) DD(P) DD(I2C-bus) provides the supply voltage for the interface at the master side (for example, a microcontroller) and the V provides the supply for core circuits and Port P. The DD(P) bidirectional voltage level translation in the PCA6408A is provided through V . DD(I2C-bus) V should be connected to the V of the external SCL/SDA lines. This indicates DD(I2C-bus) DD 2 the V level of the I C-bus to the PCA6408A. The voltage level on Port P of the DD PCA6408A is determined by the V . DD(P) The PCA6408A consists of one 8-bit Configuration (input or output selection), Input, Output, and Polarity Inversion (active HIGH) register. At power-on, the I/Os are configured as inputs. However, the system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input or Output register. The polarity of the Input port register can be inverted with the Polarity Inversion register, saving interrupts. The system master can reset the PCA6408A in the event of a time-out or other improper operation by asserting a LOW in the RESET input. The power-on reset puts the registers 2 in their default state and initializes the I C-bus/SMBus state machine. The RESET pin causes the same reset/initialization to occur without de-powering the part. The PCA6408A open-drain interrupt (INT) output is activated when any input state differs from its corresponding Input port register state and is used to indicate to the system master that an input state has changed. INT can be connected to the interrupt input of a microcontroller. By sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is incoming data 2 on its ports without having to communicate via the I C-bus. Thus, the PCA6408A can remain a simple slave device.PCA6408A NXP Semiconductors 2 Low-voltage, 8-bit I C-bus and SMBus I/O expander The device Port P outputs have 25 mA sink capabilities for directly driving LEDs while consuming low device current. 2 One hardware pin (ADDR) can be used to program and vary the fixed I C-bus address 2 and allow up to two devices to share the same I C-bus or SMBus. 2. Features and benefits 2 I C-bus to parallel port expander Operating power supply voltage range of 1.65 V to 5.5 V Allows bidirectional voltage-level translation and GPIO expansion between: 1.8V SCL/SDA and 1.8V, 2.5V, 3.3V or 5V Port P 2.5V SCL/SDA and 1.8V, 2.5V, 3.3V or 5V Port P 3.3V SCL/SDA and 1.8V, 2.5V, 3.3V or 5V Port P 5V SCL/SDA and 1.8V, 2.5V, 3.3V or 5V Port P Low standby current consumption of 1 A Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs V = 0.18 V (typical) at 1.8 V hys V = 0.25 V (typical) at 2.5 V hys V = 0.33 V (typical) at 3.3 V hys V = 0.5 V (typical) at 5 V hys 5 V tolerant I/O ports Active LOW reset input (RESET) Open-drain active LOW interrupt output (INT) 2 400 kHz Fast-mode I C-bus Input/Output Configuration register Polarity Inversion register Internal power-on reset Power-up with all channels configured as inputs No glitch on power-up Noise filter on SCL/SDA inputs Latched outputs with 25 mA drive maximum capability for directly driving LEDs Latch-up performance exceeds 100 mA per JESD 78, Class II ESD protection exceeds JESD 22 2000 V Human-Body Model (A114-A) 1000 V Charged-Device Model (C101) Packages offered: HVQFN16, TSSOP16, XQFN16 PCA6408A All information provided in this document is subject to legal disclaimers. NXP B.V. 2012. All rights reserved. Product data sheet Rev. 1 27 September 2012 2 of 40

Tariff Desc

8542.39.23 No ..Linear/analogue and peripheral integrated circuits, timers, voltage regulators, A/D and D/A converters, telecommunication and modem integrated circuits, other than board level products Free

Electronic integrated circuits- Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
FR9
Freescale
FREESCALE SEMI
Freescale Semicon
FREESCALE SEMICONDUC
Freescale Semiconductor
Freescale Semiconductor - NXP
NXP
NXP Freescale
NXP (FREESCALE)
NXP / Freescale
NXP SEMI
NXP Semicon
NXP SEMICONDUCTOR
NXP Semiconductors
NXP USA Inc.
PH3
PHI

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