PCA9509 データシートの表示（PDF） - NXP Semiconductors.
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PCA9509 Datasheet PDF : 24 Pages
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NXP Semiconductors
PCA9509
Level translating I2C-bus/SMBus repeater
10. Dynamic characteristics
Table 6. Dynamic characteristics
Symbol Parameter
VCC(A) = 1.35 V; VCC(B) = 3.3 V
tPLH
LOW to HIGH propagation delay
tPHL
HIGH to LOW propagation delay
tTLH
LOW to HIGH output transition time
tTHL
HIGH to LOW output transition time
tPLH
LOW to HIGH propagation delay
tPLH2
LOW to HIGH propagation delay 2
tPHL
HIGH to LOW propagation delay
tTLH
LOW to HIGH output transition time
tTHL
HIGH to LOW output transition time
tsu
set-up time
th
hold time
VCC(A) = 1.9 V; VCC(B) = 5.0 V
tPLH
LOW to HIGH propagation delay
tPHL
HIGH to LOW propagation delay
tTLH
LOW to HIGH output transition time
tTHL
HIGH to LOW output transition time
tPLH
LOW to HIGH propagation delay
tPLH2
LOW to HIGH propagation delay 2
tPHL
HIGH to LOW propagation delay
tTLH
LOW to HIGH output transition time
tTHL
HIGH to LOW output transition time
tsu
set-up time
th
hold time
Conditions
Min Typ Max Unit
port B to port A
[1] 69
109 216 ns
port B to port A
[1] 63
86
140 ns
port A
[1] 14
22
96
ns
port A
[1] 5
8.1 16 ns
port A to port B
[1] 69 91 139 ns
port A to port B; measured from
the 50 % of initial LOW on port A to
1.5 V rising on port B
[1] 91
153 226 ns
port A to port B
[1] 73
122 183 ns
port B
[1][2] -
61 -
ns
port B
[1] 15
24
40
ns
EN HIGH before START condition
100 -
-
ns
EN HIGH after STOP condition
100 -
-
ns
port B to port A
[1] 69
105 216 ns
port B to port A
[1] 63
86
140 ns
port A
[1] 14
27
96
ns
port A
[1] 5
8
35 ns
port A to port B
[1] 69 89 139 ns
port A to port B; measured from
the 50 % of initial LOW on port A to
1.5 V rising on port B
[1] 91
131 226 ns
port A to port B
[1] 73
99
183 ns
port B
[1][2] -
65 -
ns
port B
[1] 15
31
40
ns
EN HIGH before START condition
100 -
-
ns
EN HIGH after STOP condition
100 -
-
ns
[1] Load capacitance = 50 pF; load resistance on port B = 1.35 k.
[2] Value is determined by RC time constant of bus line.
PCA9509
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 4 November 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
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