Interfaces
I²C, SPI, Serial Interface Devices
I²C General Purpose I/O
- PCA6408A
- PCA6416A
- PCA8574_74A
- PCA8575
- PCA9500
- PCA9501
- PCA9502BS
- PCA9505_06
- PCA9534
- PCA9535A
- PCA9535_PCA9535C
- PCA9536
- PCA9537DP
- PCA9538
- PCA9538A
- PCA9539A
- PCA9539_PCA9539R
- PCA9554B_PCA9554C
- PCA9554_PCA9554A
- PCA9555
- PCA9555A
- PCA9557
- PCA9570
- PCA9571
- PCA9574
- PCA9575
- PCA9621
- PCA9670BS
- PCA9670PW
- PCA9671
- PCA9672
- PCA9673
- PCA9674_PCA9674A
- PCA9675
- PCA9698
- 18 V tolerant SPI 16-bit/8-bit GPI with INT
- PCA9701_PCA9702
- PCA9703
- PCA9703HF
- PCA9704PW
- PCAL6408A
- PCAL6416A
- PCAL6416AEX
- PCAL6534
- PCAL9535A
- PCAL9538A
- PCAL9539A
- PCAL9554B; PCAL9554C
- PCAL9555A
- PCF8574_74A
- PCF8575
PCAL6534

PCAL6534: Ultra-low-voltage, Level Translating, 34-bit I²C-bus/SMBus I/O Expander

Overview

The PCAL6534 is a 34-bit general-purpose I/O expander that provides remote I/O expansion for many microcontroller families via the Fast-mode Plus (Fm+) I²C-bus interface. The ultra-low-voltage interface allows for direct connection to a microcontroller operating down to 0.8 V.

The PCAL6534 includes level translating from the 1.65V to 5.5V I/O range and Agile I/O input latch, programmable output current, and integrated resistors. The benefits of the PCAL6534 are a wide voltage range for matching today’s lowest voltage FPGAs/processors and tiny package size, saving the cost and size of additional IOs in the processor. A GPIO expander such as the PCAL6534 can also simplify routing by pulling the I/Os for system management way from the processor, which may be densely packed with other critical functions.

The PCAL6534 is offered in a 2.6 mm x 3 mm VFBGA 42-pin package with 0.4 mm bump spacing.

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Features

Operating power supply voltage range of 0.8 V to 3.6 V on the I²C-bus
- Allows bidirectional voltage-level translation and GPIO expansion between 0.8 V to 3.6 V SCL/SDA and 1.8V, 2.5V, 3.3V, 5.5V I/O ports
Low standby current consumption: 2.0 µA typical at 3.3 V _VDD(P)
Schmitt trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs
- V_hys = 0.05 V (typical) at 0.8 V
- V_hys = 0.18 V (typical) at 1.8 V
- V_hys = 0.33 V (typical) at 3.3 V
5.5 V tolerant I/O ports and 3.6 V tolerant I²C-bus lines
1MHz Fast-mode Plus I²C-bus
Active LOW reset input (RESET)
Open-drain active LOW interrupt output (INT)
Internal power-on reset
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)

MoreLess

Features

Operating power supply voltage range of 0.8 V to 3.6 V on the I²C-bus
- Allows bidirectional voltage-level translation and GPIO expansion between 0.8 V to 3.6 V SCL/SDA and 1.8V, 2.5V, 3.3V, 5.5V I/O ports
Low standby current consumption: 2.0 µA typical at 3.3 V _VDD(P)
Schmitt trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs
- V_hys = 0.05 V (typical) at 0.8 V
- V_hys = 0.18 V (typical) at 1.8 V
- V_hys = 0.33 V (typical) at 3.3 V
5.5 V tolerant I/O ports and 3.6 V tolerant I²C-bus lines
1MHz Fast-mode Plus I²C-bus
Active LOW reset input (RESET)
Open-drain active LOW interrupt output (INT)
Internal power-on reset
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)

Data Sheets

Buy

PCAL6534 / 90-Second Crash Course

NXP’s Agile I/O and Plus Features

PCAL6534 / 90-Second Crash Course
NXP’s Agile I/O and Plus Features

PCAL6534 / 90-Second Crash Course

NXP’s Agile I/O and Plus Features

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Development Boards and Designs

OM13541:PCAL6534 Evaluation board

Evaluation and Development Boards

Development Boards and Designs

OM13541:PCAL6534 Evaluation board

Evaluation and Development Boards

Target Applications

Automotive

Automotive window control

Communication Infrastructure

Networking switches & routers

Industrial

IO buttons

Mobile

Consumer phones and game controllers

Complementary products for your application

Similar Products

PCAL6524 : Ultra-low-voltage Translating 24-bit Fm+ I²C-bus/SMBus I/O Expander PCAL6408A : Low-voltage Translating, 8-bit I²C-bus/SMBus I/O Expander PCA9539_PCA9539R : 16-bit I²C-bus and SMBus Low Power I/O Port with Interrupt and Reset PCAL6534: Ultra-low-voltage, Level Translating, 34-bit I²C-bus/SMBus I/O Expander

PCAL6416A : Low-voltage Translating 16-bit I²C-bus/SMBus I/O Expander PCA9574 : 8-bit I²C-bus and SMBus, Level Translating, Low Voltage GPIO with Reset and Interrupt PCA9698 : 40-bit Fm+ I²C-bus Advanced I/O Port with RESET, OE and INT

GPIO Comparison Table

Part Number	Bits	V Range	BW	Int	Description	Package Description	Type
PCAL6408A	8	1.65 to 5.5 V	400kHz		Dual V_CC, selectable open-drain or push pull outputs	HVQFN-16, TSSOP-16, XQFN-16, XFBGA-16, X2QFN-16	Agile IO
PCA9574	8	1.1 to 3.6 V	400kHz	maskable	Active low, 3 supplies for level translation, selectable open-drain	HVQFN-16, TSSOP-16	Standard
PCAL6416A	16	1.65 to 5.5 V	400kHz		Dual V_CC, selectable open-drain or push pull outputs	TSSOP-24, X2QFN-24, HWQFN-24, BGA-24	Agile IO
PCA9539R	16	2.3 to 5.5 V	400kHz		"R" version resets I²C-bus state machine	HVQFN-24, TSSOP-24	Standard
PCAL6524	24	0.8 to 5.5 V	1MHz		Read all interrupts without clear, device ID, SW reset	QFN-32, UFBGA-32	Agile IO
PCAL6534	34	0.8 to 5.5 V	1MHz		Read all interrupts without clear, device ID, SW reset	VFBGA-42	Agile IO
PCA9698	40	2.3 to 5.5 V	1MHz		Output enable, selectable open-drain	TSSOP-56, HVQFN-56	Standard

PCAL6534: Ultra-low-voltage, Level Translating, 34-bit I2C-bus/SMBus I/O Expander

Overview

Features

Features

PCAL6534 / 90-Second Crash Course

NXP’s Agile I/O and Plus Features

PCAL6534 / 90-Second Crash Course

NXP’s Agile I/O and Plus Features

Development Boards and Designs

Development Boards and Designs

Target Applications

Automotive

Communication Infrastructure

Industrial

Mobile

Complementary products for your application

Similar Products

Similar Products

GPIO Comparison Table

PCAL6534: Ultra-low-voltage, Level Translating, 34-bit I²C-bus/SMBus I/O Expander