TCA6408A-Q1 Datasheet, PDF (6/40 Pages) Texas Instruments – Low-Voltage 8-Bit I2C and SMBus I/O Expander With Interrupt Output

TCA6408A-Q1
SCPS234 – SEPTEMBER 2016
www.ti.com
Electrical Characteristics (continued)
over recommended operating free-air temperature range, V_CCI = 1.65 V to 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V_CCP
MIN TYP⁽¹⁾
1.65 V
I_OL = 8 mA
2.3 V
3V
V_OL
P-port low-level output voltage
3.6 V
1.65 V
I_OL = 10 mA
2.3 V
3V
3.6 V
SDA
I_OL
INT
V_OL = 0.4 V
1.65 V to 3.6 V
3
3
15
SCL, SDA, RESET
I_I
ADDR
V_I = V_CCI or GND
V_I = V_CCP or GND
1.65 V to 3.6 V
I_IH
P-port
V_I = V_CCP
1.65 V to 3.6 V
I_IL
P-port
V_I = GND
1.65 V to 3.6 V
SDA,
Operating mode
P-port,
ADDR,
I_CC
RESET
V_I = V_CC or GND, I/O =
inputs,
f_SCL = 400 kHz, No load
2.3 V to 3.6 V
1.65 V to 2.3 V
9
5
(I_CCI + I_CCP)
Standby mode
SCL, SDA,
P-port,
ADDR,
RESET
V_I = V_CC or GND, I/O =
inputs,
f_SCL = 0 kHz, No load
2.3 V to 3.6 V
1.65 V to 2.3 V
1.2
0.6
ΔI_CCI
SCL, SDA
Additional current
in standby mode
RESET
One input at V_CCI – 0.6 V,
Other inputs at V_CCI or GND
RESET at V_CCI – 0.6 V,
Other inputs at V_CCI or GND
1.65 V to 3.6 V
6
6
ΔI_CCP
P-port, ADDR
One input at V_CCP – 0.6 V,
Other inputs at V_CCP or GND
1.65 V to 3.6 V
6
C_i
SCL
V_I = V_CCI or GND
1.65 V to 3.6 V
7
SDA
C_io
P-port
V_IO = V_CCI or GND
1.65 V to 3.6 V
8
V_IO = V_CCP or GND
7
MAX
0.45
0.25
0.25
0.23
0.6
0.3
0.25
0.23
UNIT
V
mA
±0.1
μA
±0.1
1 μA
1 μA
36
33
μA
10
7
10
μA
55
80 μA
9 pF
10.5
pF
8
6.6 I²C Interface Timing Requirements
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 17)
I²C BUS—STANDARD MODE
f_scl
I²C clock frequency
t_sch
I²C clock high time
t_scl
I²C clock low time
t_sp
I²C spike time
t_sds
I²C serial data setup time
t_sdh
I²C serial data hold time
t_icr
I²C input rise time
t_icf
I²C input fall time
t_ocf
I²C output fall time, 10-pF to 400-pF bus
t_buf
I²C bus free time between Stop and Start
t_sts
I²C Start or repeater Start condition setup time
t_sth
I²C Start or repeater Start condition hold time
t_sps
I²C Stop condition setup time
MIN
0
4
4.7
0
250
0
4.7
4.7
4
4
MAX
100
50
1000
300
300
UNIT
kHz
μs
μs
ns
ns
ns
ns
ns
ns
μs
μs
μs
μs
6
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