Datasheet

Not Recommended for New Designs
PCA9517
SCPS157D –DECEMBER 2007–REVISED MARCH 2012 www.ti.com
I
2
C INTERFACE TIMING REQUIREMENTS
V
CCB
= 2.7 V to 5.5 V, GND = 0 V, T
A
= –40°C to 85°C (unless otherwise noted)
FROM TO
PARAMETER TEST CONDITIONS MIN TYP
(1)
MAX UNIT
(INPUT) (OUTPUT)
SDAB, SCLB
(2)
SDAA, SCLA
(2)
100 169 255
(see Figure 5) (see Figure 5)
t
PLZ
Propagation delay ns
SDAA, SCLA
(3)
SDAB, SCLB
(3)
25 67 110
(see Figure 4) (see Figure 4)
V
CCA
≤ 2.7 V
15 68
(4)
110
(see Figure 3)
2.7 V ≤ V
CCA
≤ 3 V
SDAB, SCLB SDAA, SCLA 20 79 130
(see Figure 3)
t
PZL
Propagation delay ns
V
CCA
≥ 3 V
10 103
(5)
300
(see Figure 3)
SDAA, SCLA
(3)
SDAB, SCLB
(3)
45 118 230
(see Figure 4) (see Figure 4)
B side to A side
1 6 30
(see Figure 4)
t
TLH
Transition time 20% 80% ns
A side to B side
20 31 170
(see Figure 3)
V
CCA
≤ 2.7 V
1 3
(4)
105
(see Figure 4)
2.7 V ≤ V
CCA
≤ 3 V
B side to A side 1 6 120
(see Figure 2)
t
THL
Transition time 80% 20% ns
V
CCA
≥ 3 V
1 25
(5)
175
(see Figure 4)
A side to B side
1 12 90
(see Figure 3)
(1) Typical values were measured with V
CCA
= V
CCB
= 2.7 V at T
A
= 25°C, unless otherwise noted.
(2) The t
PLH
delay data from B to A side is measured at 0.5 V on the B side to 0.5 V
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.
(3) The proportional delay data from A to B side is measured at 0.3 V
CCA
on the A side to 1.5 V on the B side.
(4) Typical value measured with V
CCA
= 0.9 V at T
A
= 25°C
(5) Typical value measured with V
CCA
= 5.5 V at T
A
= 25°C
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