XRA1203 Datasheet, PDF (13/17 Pages) Exar Corporation – 16-BIT I2C/SMBUS GPIO EXPANDER WITH RESET

XRA1203
REV. 1.0.0
16-BIT I2C/SMBUS GPIO EXPANDER WITH RESET
Test 1: SCL frequency is 400 KHz with internal pull-ups disabled. All GPIOs are configured as inputs. All inputs are steady
at VCC or GND. Outputs are floating or in the tri-state mode.
Test 2: SCL frequency is 400 KHz with internal pull-ups enabled. All GPIOs are configured as inputs. All inputs are steady
at VCC or GND. Outputs are floating or in the tri-state mode.
Test 3: All inputs are steady at VCC or GND to minimize standby current. If internal pull-up is enabled, input voltage level
should be the same as VCC. All GPIOs are configured as inputs. SCL and SDA are at VCC. Outputs are left floating or in
tri-state mode.
AC ELECTRICAL CHARACTERISTICS
Unless otherwise noted: TA=-40^o to +85^oC, Vcc=1.65V - 3.6V
SYMBOL
PARAMETER
f_SCL
T_BUF
T_HD;STA
T_SU;STA
T_HD;DAT
T_VD;ACK
T_VD;DAT
T_SU;DAT
T_LOW
T_HIGH
T_F
T_R
T_SP
T_D1
T_D4
T_D5
T_D15
Operating frequency
Bus free time between STOP and START
START condition hold time
START condition setup time
Data hold time
Data valid acknowledge
SCL LOW to data out valid
Data setup time
Clock LOW period
Clock HIGH period
Clock/data fall time
Clock/data rise time
Pulse width of spikes tolerance
I²C-bus GPIO output valid
I²C input pin interrupt valid
I²C input pin interrupt clear
SCL delay after reset
STANDARD MODE
I²C-BUS
MIN
MAX
0
100
FAST MODE
I²C-BUS
MIN
MAX
0
400
4.7
1.3
4.0
0.6
4.7
0.6
0
0
0.6
0.6
0.6
0.6
250
150
4.7
1.3
4.0
0.6
300
300
1000
300
50
50
0.2
0.2
4
4
4
4
3
3
UNIT
kHz
µs
µs
µs
ns
µs
ns
ns
µs
µs
ns
ns
ns
µs
µs
µs
µs
13