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PCAL9535APW датащи(PDF) 33 Page - NXP Semiconductors

номер детали PCAL9535APW
подробное описание детали  Low-voltage 16-bit I2C-bus I/O port with interrupt and Agile I/O
PDF  46 Pages
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производитель  NXP [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCAL9535APW датащи(HTML) 33 Page - NXP Semiconductors

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PCAL9535A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 1 — 28 September 2012
33 of 46
NXP Semiconductors
PCAL9535A
Low-voltage 16-bit I2C-bus I/O port with interrupt and Agile I/O
14. Parameter measurement information
a. SDA load configuration
b. Transaction format
c. Voltage waveforms
CL includes probe and jig capacitance.
All inputs are supplied by generators having the following characteristics: PRR
 10 MHz; Z
o =50 ; tr/tf  30 ns.
All parameters and waveforms are not applicable to all devices.
Byte 1 = I2C-bus address; Byte 2, byte 3 = P port data.
(1) See Figure 9.
Fig 29. I2C-bus interface load circuit and voltage waveforms
002aag803
DUT
CL = 50 pF
RL = 1 kΩ
SDA
VDD
STOP
condition
(P)
Data
Bit 0
(LSB)
Data
Bit 7
(MSB)
ACK
(A)
R/W
Bit 0
(LSB)
Address
Bit 1
Address
Bit 7
(MSB)
START
condition
(S)
STOP
condition
(P)
two bytes for read Input port register(1)
002aag952
tLOW
tHIGH
tr
tf
0.7 × VDD
0.3 × VDD
0.7 × VDD
0.3 × VDD
tSP
tBUF
tf
tHD;STA
tr
SCL
SDA
tSU;DAT
tHD;DAT
tf(o)
tVD;ACK
tVD;DAT
tVD;ACK
tSU;STA
tSU;STO
002aag804
repeat START condition
STOP condition



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