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TCA9554PWR Datasheet(PDF) 20 Page - Texas Instruments

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Part # TCA9554PWR
Description  LOW VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TCA9554PWR Datasheet(HTML) 20 Page - Texas Instruments

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SDA
SCL
Start
ACK or Read Cycle
tw
tREC
RESET
0.3 y VCC
VCC/2
tRESET
Pn
RL = 1 kΩ
VCC
CL = 50 pF
(see Note A)
SDA LOAD CONFIGURATION
DUT
SDA
P-PORT LOAD CONFIGURATION
VCC/2
tRESET
DUT
CL = 50 pF
(see Note A)
Pn
2
× VCC
500 W
500 W
TCA9554
SCPS233A – NOVEMBER 2011 – REVISED MARCH 2012
www.ti.com
PARAMETER MEASUREMENT INFORMATION (continued)
A.
CL includes probe and jig capacitance.
B.
All inputs are supplied by generators having the following characteristics: PRR
≤ 10 MHz, ZO = 50 Ω, tr/tf ≤ 30 ns.
C.
All parameters and waveforms are not applicable to all devices.
Figure 15. Reset Load Circuits and Voltage Waveforms
20
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Copyright © 2011–2012, Texas Instruments Incorporated
Product Folder Link(s): TCA9554


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