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PCA9539DB Datasheet(PDF) 28 Page - Texas Instruments

Part # PCA9539DB
Description  PCA9539 Remote 16-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Configuration Registers
PDF  48 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

PCA9539DB Datasheet(HTML) 28 Page - Texas Instruments

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V
CC
Time
V
CC_GH
V
CC_GW
Figure 10-3. Glitch Width And Glitch Height
VPOR is critical to the power-on reset. VPOR is the voltage level at which the reset condition is released and
all the registers and the I2C/SMBus state machine are initialized to their default states. The value of VPOR
differs based on the VCC being lowered to or from 0. Figure 10-4 and Table 10-1 provide more details on this
specification.
V
CC
V
POR
V
PORF
Time
POR
Time
Figure 10-4. VPOR
PCA9539
SCPS130H – AUGUST 2005 – REVISED MARCH 2021
www.ti.com
28
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Product Folder Links: PCA9539



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