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| TCA9534_16 Datasheet, PDF (27/38 Pages) Texas Instruments – Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander with Interrupt Output and Configuration Registers | |||
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TCA9534
SCPS197B â SEPTEMBER 2014 â REVISED NOVEMBER 2016
VPOR is critical to the power-on reset. VPORR 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 40 and Table 8 provide more details on this specification.
VCC
VPORR
VPORF
POR
Time
Time
Figure 40. VPOR
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