Texas Instruments PCA9544ARGYRG4

Manufacturer No:

PCA9544ARGYRG4

Manufacturer:

Texas Instruments

Package:

Description:

4-channel 2.3- to 5.5-V I2C/SMBus multiplexer with interrupt & voltage translation

Quantity:

In Stock :2721

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Date Code：Within 2 Years

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PCA9544ARGYRG4 Information

Texas Instruments PCA9544ARGYRG4 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments PCA9544ARGYRG4.

Type
Parameter

Addresses
8

Supply voltage (max) (V)
5.5

Supply voltage (min) (V)
2.3

Features
Interrupt pin

Rating
Catalog

Frequency (max) (MHz)
0.4

Operating temperature range (°C)
-40 to 85

Number of channels
4

Package
SOIC (DW)

Pins
20

Type
Parameter

Size
131.84 mm² 12.8 x 10.3

Package
TSSOP (PW)

Pins
20

Size
41.6 mm² 6.5 x 6.4

Package
TVSOP (DGV)

Pins
20

Size
32 mm² 5 x 6.4

Package
VQFN (RGY)

Pins
20

Size
15.75 mm² 4.5 x 3.5

Download datasheets and manufacturer documentation for Texas Instruments PCA9544ARGYRG4.

The PCA9544A is a 4-channel, bidirectional translating multiplexer controlled via the I²C bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels. One SCL/SDA pair can be selected at a time, and this is determined by the contents of the programmable control register. Four interrupt inputs ( INT3– INT0), one for each of the downstream pairs, are provided. One interrupt output ( INT) acts as an AND of the four interrupt inputs.

A power-on reset function puts the registers in their default state and initializes the I²C state machine, with no channel selected.

The pass gates of the switches are constructed such that the V_CC pin can be used to limit the maximum high voltage, which will be passed by the PCA9544A. This allows the use of different bus voltages on each pair, so that 1.8-V, 2.5-V, or 3.3-V parts can communicate with 5-V parts, without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 5-V tolerant.

1-of-4 Bidirectional translating switches
I²C Bus and SMBus compatible
Four active-low interrupt inputs
Active-low interrupt output
Three address pins, allowing up to eight devices on the I²C Bus
Channel selection via I²C Bus
Power up with all switch channels deselected
Low R_ON switches
Allows voltage-level translation between 1.8-V, 2.5-V, 3.3-V, and 5-V Buses
No glitch on power up
Supports hot insertion
Low standby current
Operating power-supply voltage range of 2.3 V to 5.5 V
5.5-V Tolerant inputs
0 to 400-kHz Clock frequency
Latch-up performance exceeds 100 mA Per JESD 78
ESD Protection exceeds JESD 22
- 2000-V Human-body model (A114-A)
- 200-V Machine model (A115-A)
- 1000-V Charged-device model (C101)