pca9509 NXP Semiconductors, pca9509 Datasheet - Page 8

• Manufacturer Part Number: pca9509
• Description: Level Translating I2c-bus/smbus Repeater
• Manufacturer: NXP Semiconductors

NXP Semiconductors
[3]
[4]
[5]
10. Dynamic characteristics
Table 5.
[1]
[2]
PCA9509_2
Product data sheet
Symbol
V
t
t
t
t
t
t
t
t
t
t
t
V
t
t
t
t
t
t
t
t
t
t
t
PLH
PHL
TLH
THL
PLH
PLH2
PHL
TLH
THL
su
h
PLH
PHL
TLH
THL
PLH
PLH2
PHL
TLH
THL
su
h
CC(A)
CC(A)
The port A current source has a typical value of about 1 mA, but varies with both V
port A current source current drops to 0 mA. The current source current dropping across the internal pull-down driver resistance of
about 200
As long as the chip ground is common with the input ground reference the driver resistance may be as large as 120 . However, ground
offset will rapidly decrease the maximum allowed driver resistance.
Guaranteed by design.
Load capacitance = 50 pF; load resistance on port B = 1.35 k .
Value is determined by RC time constant of bus line.
= 1.1 V; V
= 1.9 V; V
Parameter
LOW-to-HIGH propagation delay
HIGH-to-LOW propagation delay
LOW to HIGH output transition time
HIGH to LOW output transition time
LOW-to-HIGH propagation delay
LOW to HIGH propagation delay 2
HIGH-to-LOW propagation delay
LOW to HIGH output transition time
HIGH to LOW output transition time
setup time
hold time
LOW-to-HIGH propagation delay
HIGH-to-LOW propagation delay
LOW to HIGH output transition time
HIGH to LOW output transition time
LOW-to-HIGH propagation delay
LOW to HIGH propagation delay 2
HIGH-to-LOW propagation delay
LOW to HIGH output transition time
HIGH to LOW output transition time
setup time
hold time
Dynamic characteristics
defines the V
CC(B)
CC(B)
= 3.3 V
= 5.0 V
OL
.
Rev. 02 — 29 June 2007
Conditions
port B to port A
port B to port A
port A
port A
port A to port B
port A to port B; measured from
the 50 % of initial LOW on port A to
1.5 V rising on port B
port A to port B
port B
port B
EN HIGH before START condition
EN HIGH after STOP condition
port B to port A
port B to port A
port A
port A
port A to port B
port A to port B; measured from
the 50 % of initial LOW on port A to
1.5 V rising on port B
port A to port B
port B
port B
EN HIGH before START condition
EN HIGH after STOP condition
Level translating I
CC(A)
and V
CC(B)
[1][2]
[1][2]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
. Below V
Min
69
63
14
5
91
73
-
15
100
100
69
63
14
5
91
73
-
15
100
100
69
69
2
C-bus/SMBus repeater
CC(A)
Typ
109
86
22
8.1
153
122
61
24
-
-
105
86
27
8
131
99
65
31
-
-
PCA9509
91
89
© NXP B.V. 2007. All rights reserved.
of about 0.7 V the
Max
216
140
96
16
226
183
-
40
-
-
216
140
96
35
226
183
-
40
-
-
139
139
8 of 18
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns