TCA9534_16 Datasheet, PDF (7/38 Pages) Texas Instruments – Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander with Interrupt Output and Configuration Registers

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TCA9534
SCPS197B – SEPTEMBER 2014 – REVISED NOVEMBER 2016
I²C Interface Timing Requirements (continued)
over operating free-air temperature range (unless otherwise noted) (see Figure 19)
t_ocf
t_buf
t_sts
t_sth
t_sps
t_vd(data)
t_vd(ack)
C_b
I²C output fall time
I²C bus free time between Stop and Start
I²C Start or repeated Start condition setup
I²C Start or repeated Start condition hold
I²C Stop condition setup
Valid data time
Valid data time of ACK condition
I²C bus capacitive load
10-pF to 400-pF bus
SCL low to SDA output valid
ACK signal from SCL low to
SDA (out) low
MIN
20 × (V_DD /
5.5 V)
1.3
0.6
0.6
0.6
MAX
300
0.9
0.9
400
UNIT
ns
µs
µs
µs
µs
µs
µs
pF
6.7 Switching Characteristics
over operating free-air temperature range (unless otherwise noted) (see Figure 20 and Figure 21)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN
t_iv
Interrupt valid time
t_ir
Interrupt reset delay time
t_pv
Output data valid
t_ps
Input data setup time
t_ph
Input data hold time
P port
INT
SCL
INT
SCL
P7–P0
P port
SCL
100
P port
SCL
1
MAX
4
4
350
UNIT
µs
µs
ns
ns
µs
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