Texas Instruments PCA9554ARGTRG4

Manufacturer No:

PCA9554ARGTRG4

Manufacturer:

Texas Instruments

Package:

Description:

8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers

Quantity:

In Stock :4249

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PCA9554ARGTRG4 Information

Texas Instruments PCA9554ARGTRG4 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments PCA9554ARGTRG4.

Type
Parameter

Number of I/Os
8

Features
Configuration registers, Interrupt pin

Supply voltage (min) (V)
2.3

Supply voltage (max) (V)
5.5

Addresses
8

Rating
Catalog

Frequency (max) (MHz)
0.4

Operating temperature range (°C)
-40 to 85

Package
SOIC (DW)

Pins
16

Type
Parameter

Size
106.09 mm² 10.3 x 10.3

Package
SSOP (DB)

Pins
16

Size
48.36 mm² 6.2 x 7.8

Package
SSOP (DBQ)

Pins
16

Size
29.4 mm² 4.9 x 6

Package
TVSOP (DGV)

Pins
16

Size
23.04 mm² 3.6 x 6.4

Download datasheets and manufacturer documentation for Texas Instruments PCA9554ARGTRG4.

The PCA9554A 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 on its ports without having to communicate via the I²C bus. Thus, the PCA9554A can remain a simple slave device.

The device’s outputs (latched) have high-current drive capability for directly driving LEDs and low current consumption.

Three hardware pins (A0, A1, and A2) are used to program and vary the fixed I²C address and allow up to eight devices to share the same I²C bus or SMBus.

The PCA9554A is pin-to-pin and I²C address compatible with the PCF8574A. However, software changes are required, due to the enhancements in the PCA9554A over the PCF8574A.

The PCA9554A and PCA9554 are identical except for their fixed I²C address. This allows for up to 16 of these devices (8 of each) on the same I²C/SMBus.

I²C to Parallel Port Expander
Open-Drain Active-Low Interrupt Output
Operating Power-Supply Voltage Range of 2.3 V to 5.5 V
5-V Tolerant I/Os
400-kHz Fast I²C Bus
Three Hardware Address Pins Allow up to Eight Devices on the I²C/SMBus
Input/Output Configuration Register
Polarity Inversion Register
Internal Power-On Reset
Power-Up With All Channels Configured as Inputs
No Glitch on Power Up
Latched Outputs With High-Current 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)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)