TCA9617A Datasheet, PDF (6/17 Pages) Texas Instruments – LEVEL-TRANSLATING FM+ I2C BUS REPEATER

TCA9617A
SCPS244 – JUNE 2013
www.ti.com
TIMING REQUIREMENTS
V_CCA = 0.8 V to 5.5 V, V_CCB = 2.2 V to 5.5 V, GND = 0V, TA = -40°C to 85° (unless otherwise noted)⁽¹⁾⁽²⁾
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST CONDITIONS
MIN
SDAB, SCLB SDAA, SCLA
42
t_PLH
Propagation delay
SDAA, SCLA SDAB, SCLB ^{VCCB ≤ 3 V}
61
V_CCB > 3 V
61
SDAB, SCLB SDAA, SCLA
69
t_PHL
Propagation delay
SDAA, SCLA SDAB, SCLB
68
t_TLH ⁽⁴⁾
Transition
time
B side
A side
30%
30%
70%
70%
t_THL
Transition
time
B side
A side
70%
30%
5.40
1.40
TYP⁽³⁾ MAX UNIT
55 90
88 137 ns
94 250
93 144
ns
90 140
88
ns
37
ns
6.41 13.8
ns
4.71 11.3
(1) Times are specified with loads of 240 Ω ±1% and 400 pF ±10% on B-side and 240 Ω ±1% and 200 pF ±10% on A-side. Different load
resistance and capacitance alter the RC time constant, thereby changing the propagation delay and transition times.
(2) Pullup voltages are V_CCA on the A side and V_CCB on the B side.
(3) Typical values were measured with V_CCA = 0.9 and V_CCB = 2.5V at T_A = 25°C, unless otherwise noted.
(4) T_TLH is determined by the pull-up resistance and load capacitance.
TA = 85 C
TA = 25 C
T_A = -40 C
Measured with VCCA = 0.9 V and VCCB = 2.2 V
Port A IOL (mA)
Figure 2. Port A V_OL vs I_OL
TA = -40 C
TA = 25 C
T_A = 85 C
Measured with VCCA = 0.9 V and VCCB = 2.2 V
Port B IOL (mA)
Figure 3. Port B V_OL vs I_OL
6
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