TCA9555_16 Datasheet, PDF (7/46 Pages) Texas Instruments – Low-Voltage 16-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers

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TCA9555
SCPS200D – JULY 2009 – REVISED JULY 2016
Electrical Characteristics (continued)
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
Operating
mode
TEST CONDITIONS
I_O = 0,
I/O = inputs, f_SCL = 400 kHz, t_r
= 3 ns, No load
V_CC
5.5 V
3.6 V
2.7 V
1.95 V
5.5 V
I_CC Quiescent current
Low
inputs
V_I = GND, I_O = 0, I/O = inputs,
f_SCL = 0 kHz, No load
3.6 V
2.7 V
Standby
mode
1.95 V
5.5 V
High
inputs
V_I = V_CC, I_O = 0, I/O = inputs,
f_SCL = 0 kHz, No load
3.6 V
2.7 V
1.95 V
C_I
Input capacitance
SCL
V_I = V_CC or GND
SDA
C_io
Input-output pin capacitance
P port
V_IO = V_CC or GND
1.65 V to 5.5 V
1.65 V to 5.5 V
MIN TYP⁽¹⁾ MAX UNIT
22 40
11 30
μA
8 19
5 11
1.1 1.5
0.7 1.3
mA
0.5 1
0.3 0.9
2.5 3.5
1 1.8
μA
0.7 1.6
0.5 1
3 8 pF
3 9.5
pF
3.7 9.5
7.6 I²C Interface Timing Requirements
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 19)
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
t_buf
I²C bus free time between stop and start
t_sts
I²C start or repeated start condition setup
t_sth
I²C start or repeated start condition hold
t_sps
I²C stop condition setup
t_vd(data) Valid data time
t_vd(ack) Valid data time of ACK condition
C_b
I²C bus capacitive load
I²C BUS—FAST 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
10-pF to 400-pF bus
SCL low to SDA output valid
ACK signal from SCL low to
SDA (out) low
MIN
MAX UNIT
0
100 kHz
4
µs
4.7
µs
50 ns
250
ns
0
ns
1000 ns
300 ns
300 ns
4.7
µs
4.7
µs
4
µs
4
µs
3.45 µs
3.45 µs
400 pF
0
400 kHz
0.6
µs
1.3
µs
50 ns
100
ns
0
ns
20
300 ns
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