PCA9509P View Datasheet(PDF) - NXP Semiconductors.
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Manufacturer
PCA9509P Datasheet PDF : 26 Pages
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NXP Semiconductors
PCA9509P
Low power level translating I2C-bus/SMBus repeater
10. Dynamic characteristics
Table 7. Dynamic characteristics
VCC(A) = 0.8 V to 2.0 V; VCC(B) = 2.3 V to 5.5 V; GND = 0 V; Tamb = 40 C to +85 C; unless otherwise specified.[1]
Symbol Parameter
Conditions
Min Typ[2] Max
tPLH
LOW to HIGH propagation delay port B to port A
[1] 70 110 180
tPHL
HIGH to LOW propagation delay port B to port A
[1] 104 156 270
SRf
falling slew rate
port A; 0.7VCC(A) to 0.3VCC(A)
tPLH
LOW to HIGH propagation delay port A to port B
[1] 0.007 0.015 0.036
[1] 72 110 -175
tPLH2 LOW to HIGH propagation delay 2 port A to port B;
[1] 61 98
266
measured from 0.15VCC(A) on port A
to 0.5VCC(B) on port B
tPHL
HIGH to LOW propagation delay port A to port B
[1] 52 89
226
SRf
falling slew rate
port B; 0.7VCC(B) to 0.3VCC(B)
[1] 0.02 0.05 0.1
ten
enable time
EN HIGH to enabled
[3] 10
-
-
tdis
disable time
EN LOW to disabled
[3] 300 -
-
Unit
ns
ns
V/ns
ns
ns
ns
V/ns
s
ns
[1] Load capacitance = 50 pF; load resistance on port B = 1.35 k. Port A = 1.35 k, and an input falling slew rate of 0.05 V/ns.
[2] Typical values were measured with VCC(A) = 1.1 V, VCC(B) = 3.3 V at Tamb = 25 C.
[3] Enable pin (EN) should only change state when the bus and the repeater port are in an idle state. That is, the ten should be considered
the set-up time before START and tdis should be considered the hold time after STOP.
10.1 AC waveforms
input
output
0.5VCC(B)
tPHL
0.5VCC(B)
tPLH
VCC(B)
0.1 V
70 %
0.5VCC(A) 0.5VCC(A)
30 %
30 %
SRf
70 %
VCC(A)
VOL
SRr
002aag139
Fig 7. Propagation delay times and slew rate;
port B to port A
input
0.5VCC(A)
tPHL
output
70 %
0.5VCC(B)
30 %
SRf
0.5VCC(A)
VCC(A)
tPLH
0.5VCC(B)
VCC(B)
002aag140
Fig 8. Propagation delay times and slew rate;
port A to port B
input
port A
tPLH
0.5VCC(A)
0.15VCC(A)
output
port B
0.5VCC(B)
tPLH2
002aaf976
Fig 9. Propagation delay from the port A’s external driver switching off to port B LOW-to-HIGH transition;
port A to port B
PCA9509P
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 18 May 2018
© NXP B.V. 2018. All rights reserved.
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