PCA9542AD Product Information|NXP

Buy Options

PCA9542AD,112

No Longer Manufactured

12NC: 935275801112

Details

Order

PCA9542AD,118

No Longer Manufactured

12NC: 935275801118

Details

Order

Operating Features

ParameterValue
Operating Temperature (°C)
-40~85
Operating voltage (VDC)
2.3~5.5
Inputs
1
ParameterValue
Outputs
2
No of Addresses
8
I2C-bus (kHz)
400

Environmental

Part/12NCPbFreeEU RoHSHalogen FreeRHF IndicatorREACH SVHCWeight (mg)
PCA9542AD,112(935275801112)
Yes
Yes
No
GREACH SVHC
114.6551369999999
PCA9542AD,118(935275801118)
Yes
Yes
No
GREACH SVHC
114.6551369999999

Quality

Part/12NCSafe Assure Functional SafetyMoisture Sensitivity Level (MSL)Peak Package Body Temperature (PPT) (C°)FITMTBFIR
Lead SolderingLead Free SolderingLead SolderingLead Free Soldering
PCA9542AD,112
(935275801112)
No
1
1
240
260
2.0
5.0E8
0.0
PCA9542AD,118
(935275801118)
No
1
1
240
260
2.0
5.0E8
0.0

Shipping

Part/12NCHarmonized Tariff (US)Disclaimer
PCA9542AD,112
(935275801112)
854239
PCA9542AD,118
(935275801118)
854239

Discontinued and Replacement Part Data

Part/12NCDiscontinuance NoticeLast Time Buy DateLast Time Delivery DateReplacement
PCA9542AD,112
(935275801112)
-
2018-01-24
2018-07-24
PCA9542AD,118
(935275801118)
PCA9542AD,118
(935275801118)
NOTICE
2018-05-31
2018-11-30
PCA9542APW,118
(935275802118)

Product Change Notice

Part/12NCIssue DateEffective DatePCNTitle
PCA9542AD,118
(935275801118)
2018-12-192018-12-20201711018DNU02Product Discontinuation Notice - Align SOIC EOL Dates

More about PCA9542A

The PCA9542A is a 1-of-2 bidirectional translating multiplexer, controlled via the I²C-bus. The SCL/SDA upstream pair fans out to two SCx/SDx downstream pairs, or channels. Only one SCx/SDx channel is selected at a time, determined by the contents of the programmable control register. Two interrupt inputs, INT0 and INT1, one for each of the SCx/SDx downstream pairs, are provided. One interrupt output, INT, which acts as an AND of the two interrupt inputs, is provided.

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

The pass gates of the multiplexer are constructed such that the VDD pin can be used to limit the maximum high voltage which will be passed by the PCA9542A. This allows the use of different bus voltages on each SCx/SDx 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.

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