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PCA9554APWR 数据表(PDF) 21 Page - Texas Instruments

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部件名 PCA9554APWR
功能描述  REMOTE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
PDF  33 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

PCA9554APWR 数据表(HTML) 21 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
PCA9554A
REMOTE 8-BIT I2C AND SMBus I/O EXPANDER
WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
SCPS127A – SEPTEMBER 2006 – REVISED FEBRUARY 2007
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, Z
O = 50 Ω, tr/tf ≤ 30 ns.
C.
All parameters and waveforms are not applicable to all devices.
Figure 13. Reset Load Circuits and Voltage Waveforms
21
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