PCA9517_3 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 03 — 30 January 2007 10 of 19
NXP Semiconductors
PCA9517
Level translating I
2
C-bus repeater
[1] LOW-level supply voltage.
[2] V
IL
specification is for the first LOW level seen by the SDAB/SCLB lines. V
ILc
is for the second and subsequent LOW levels seen by the
SDAB/SCLB lines.
[3] V
IL
for A-side with envelope noise must be below 0.3V
CCA
for stable performance.
10. Dynamic characteristics
[1] Times are specified with loads of 1.35 kΩ pull-up resistance and 57 pF load capacitance on the B-side, and 167 Ω pull-up resistance
and 57 pF load capacitance on the A-side. Different load resistance and capacitance will alter the RC time constant, thereby changing
the propagation delay and transition times.
[2] Pull-up voltages are V
CCA
on the A-side and V
CCB
on the B-side.
[3] Typical values were measured with V
CCA
= 3.3 V at T
amb
=25°C, unless otherwise noted.
[4] The t
PLH
delay data from B-side to A-side is measured at 0.5 V on the B-side to 0.5V
CCA
on the A-side when V
CCA
is less than 2 V, and
1.5 V on the A-side if V
CCA
is greater than 2 V.
[5] Typical value measured with V
CCA
= 2.7 V at T
amb
=25°C.
[6] The proportional delay data from A-side to B-side is measured at 0.3V
CCA
on the A-side to 1.5 V on the B-side.
[7] The enable pin, EN, should only change state when the global bus and the repeater port are in an idle state.
Enable
V
IL
LOW-level input voltage −0.5 - +0.3V
CCB
V
V
IH
HIGH-level input voltage 0.7V
CCB
- 5.5 V
I
IL(EN)
LOW-level input current on pin EN V
I
= 0.2 V, EN; V
CC
= 3.6 V - −10 −30 µA
I
LI
input leakage current −1-+1 µA
C
i
input capacitance V
I
= 3.0 V or 0 V - 6 7 pF
Table 4. Static characteristics
…continued
V
CC
=2.7V to 5.5V; GND=0V; T
amb
=
−
40
°
Cto+85
°
C; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
Table 5. Dynamic characteristics
V
CC
=2.7V to 5.5V; GND=0V; T
amb
=
−
40
°
Cto+85
°
C; unless otherwise specified.
[1][2]
Symbol Parameter Conditions Min Typ
[3]
Max Unit
t
PLH
LOW-to-HIGH propagation delay B-side to A-side; Figure 12
[4]
100 170 250 ns
t
PHL
HIGH-to-LOW propagation delay B-side to A-side; Figure 10
V
CCA
≤ 2.7 V
[5]
30 80 110 ns
V
CCA
≥ 3 V 10 66 300 ns
t
t(LH)
LOW-to-HIGH transition time A-side; Figure 10 10 20 30 ns
t
t(HL)
HIGH-to-LOW transition time A-side; Figure 10
V
CCA
≤ 2.7 V
[5]
1 77 105 ns
V
CCA
≥ 3 V 20 70 175 ns
t
PLH
LOW-to-HIGH propagation delay A-side to B-side; Figure 11
[6]
25 53 110 ns
t
PHL
HIGH-to-LOW propagation delay A-side to B-side; Figure 11
[6]
60 79 230 ns
t
t(LH)
LOW-to-HIGH transition time B-side; Figure 11 120 140 170 ns
t
t(HL)
HIGH-to-LOW transition time B-side; Figure 11 30 48 90 ns
t
su
set-up time EN HIGH before START condition
[7]
100 - - ns
t
h
hold time EN HIGH after STOP condition
[7]
100 - - ns
