PCA9535BS Просмотр технического описания (PDF) - NXP Semiconductors.
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PCA9535BS Datasheet PDF : 34 Pages
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NXP Semiconductors
PCA9535; PCA9535C
16-bit I2C-bus and SMBus, low power I/O port with interrupt
[2] Each I/O must be externally limited to a maximum of 25 mA and each octal (IO0_0 to IO0_7 and IO1_0 to IO1_7) must be limited to a
maximum current of 100 mA for a device total of 200 mA.
[3] The total current sourced by all I/Os must be limited to 160 mA. PCA9535C does not source current and does not have the VOH
specification.
11. Dynamic characteristics
Table 15. Dynamic characteristics
Symbol Parameter
Conditions
fSCL
SCL clock frequency
tBUF
bus free time between a STOP and
START condition
tHD;STA
tSU;STA
hold time (repeated) START condition
set-up time for a repeated START
condition
tSU;STO
tVD;ACK
tHD;DAT
tVD;DAT
tSU;DAT
tLOW
tHIGH
tf
tr
tSP
set-up time for STOP condition
data valid acknowledge time
data hold time
data valid time
data set-up time
LOW period of the SCL clock
HIGH period of the SCL clock
fall time of both SDA and SCL signals
rise time of both SDA and SCL signals
pulse width of spikes that must be
suppressed by the input filter
Port timing
tv(Q)
data output valid time
tsu(D)
data input set-up time
th(D)
data input hold time
Interrupt timing
tv(INT_N) valid time on pin INT
trst(INT_N) reset time on pin INT
Standard-mode
I2C-bus
Min
Max
0
100
4.7
-
Fast-mode I2C-bus
Min
Max
0
400
1.3
-
4.0
-
0.6
-
4.7
-
0.6
-
4.0
[1] 0.3
0
[2] 300
250
4.7
4.0
-
-
-
-
0.6
-
3.45
0.1
0.9
-
0
-
-
50
-
-
100
-
-
1.3
-
-
0.6
-
300 20 + 0.1Cb[3] 300
1000 20 + 0.1Cb[3] 300
50
-
50
[4]
-
200
-
200
150
-
150
-
1
-
1
-
-
4
-
4
-
4
-
4
Unit
kHz
s
s
s
s
s
ns
ns
ns
s
s
ns
ns
ns
ns
ns
s
s
s
[1] tVD;ACK = time for acknowledgement signal from SCL LOW to SDA (out) LOW.
[2] tVD;DAT = minimum time for SDA data out to be valid following SCL LOW.
[3] Cb = total capacitance of one bus line in pF.
[4] tv(Q) measured from 0.7VDD on SCL to 50 % I/O output (PCA9535). For PCA9535C, use load circuit shown in Figure 24 and measure
from 0.7VDD on SCL to 30 % I/O output.
PCA9535_PCA9535C
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 7 November 2017
© NXP Semiconductors N.V. 2017. All rights reserved.
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