TCA9509 Datasheet, PDF (5/14 Pages) Texas Instruments – LEVEL-TRANSLATING I2C/SMBUS BUS REPEATER

www.ti.com
ELECTRICAL CHARACTERISTICS
V_CCB = 2.7 V to 5.5 V, GND = 0 V, T_A = –40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V_CCB
V_IK
Input clamp voltage
I_I = –18 mA
2.7 V to 5.5 V
I_OL = 10 μA,
SDAA, SCLA V_ILA = V_ILB = 0 V,
V_OL
Low-level output
voltage
V_CCA = 0.9 to 1.2V
I_OL = 20 μA,
2.7 V to 5.5 V
SDAA, SCLA V_ILA = V_ILB = 0 V,
1.2V < V_CCA <= (V_CCB - 1V)
Low-level input voltage
V_OL – V_ILc below low-level output SDAA, SCLA
voltage
2.7 V to 5.5 V
V_ILc
SDA and SCL low-level
input voltage contention
SDAA, SCLA
2.7 V to 5.5 V
V_OLB
Low-level output
voltage
SDAB, SCLB I_OL = 6 mA
2.7 V to 5.5 V
All port A Static high
I_CC
Quiescent supply current for V_CCA
All port A Static low
I_CC
Quiescent supply current for V_CCB
All port A Static high
SDAB, SCLB ^{VI = VCCB}
V_I = 0.2 V
I_I
Input leakage current
SDAA, SCLA ^{VI = VCCA}
V_I = 0.2 V
EN
V_I = V_CCB
V_I = 0.2 V
I_OH
High-level output
leakage current
SDAB, SCLB
SDAA, SCLA ^{VO = 3.6 V}
5.5 V
2.7 V to 5.5 V
2.7 V to 5.5 V
C_IOA
I/O capacitance of
A-side
SCLA, SDAA V_I = 0 V
C_IOB
I/O capacitance of
B-side
SCLB, SDAB V_I = 0 V
TIMING REQUIREMENTS
over recommended operating free-air temperature range (unless otherwise noted)
t_su
Setup time, EN high before Start condition⁽¹⁾
t_h
Hold time, EN high after Stop condition⁽¹⁾
(1) EN should change state only when the global bus and the repeater port are in an idle state.
TCA9509
SCPS225 – JUNE 2011
MIN TYP MAX UNIT
–1.5
–0.5 V
0.18 0.25
V
0.2
0.3
50
–0.5 0.15
0.1
0.25 0.45
1.25
3
0.5
0.9
6
6.5
5.5
6
mV
V
0.2 V
0.9
mA
5
1.1 mA
±1
10
±1
μA
10
±1
–10
10
μA
10
7 pF
6.2 pF
MIN
MAX UNIT
100
ns
100
ns
Copyright © 2011, Texas Instruments Incorporated
5