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PCAL9539APW Datasheet(PDF) 34 Page - NXP Semiconductors

Part # PCAL9539APW
Description  Low-voltage 16-bit I2C-bus and SMBus low power I/O port with interrupt and reset
PDF  48 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCAL9539APW Datasheet(HTML) 34 Page - NXP Semiconductors

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PCAL9539A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 1 — 3 October 2012
34 of 48
NXP Semiconductors
PCAL9539A
16-bit I2C-bus and SMBus low power I/O port with interrupt and reset
14. Parameter measurement information
Table 35.
Switching characteristics
Over recommended operating free air temperature range; CL 100 pF; unless otherwise specified. See Figure 29.
Symbol
Parameter
Conditions
Standard-mode
I2C-bus
Fast-mode
I2C-bus
Unit
Min
Max
Min
Max
tv(INT)
valid time on pin INT
from P port to INT
-1-
1
s
trst(INT)
reset time on pin INT
from SCL to INT
-1-
1
s
tv(Q)
data output valid time
from SCL to P port
-
400
-
400
ns
tsu(D)
data input set-up time
from P port to SCL
0
-
0
-
ns
th(D)
data input hold time
from P port to SCL
300
-
300
-
ns
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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