SI5338 Datasheet, PDF (14/170 Pages) Silicon Laboratories – I2C-PROGRAMMABLE ANY-FREQUENCY, ANY-OUTPUT QUAD CLOCK GENERATOR

Si5338
Table 14. I²C Specifications (SCL,SDA)¹
Parameter
Symbol Test Condition
Standard Mode
Fast Mode
Unit
Min
Max
Min
Max
LOW Level Input
Voltage
HIGH Level Input
Voltage
V_ILI2C
V_IHI2C
–0.5
0.3 x V_DDI2C
–0.5
0.3 x V_DDI2C2
V
0.7 x V_DDI2C
3.63
0.7 x V_DDI2C2
3.63
V
Hysteresis of
Schmitt Trigger
Inputs
V_HYS
N/A
N/A
LOW Level Out- V_OLI2C2 V_DDI2C2 = 2.5/3.3 V
0
0.4
put Voltage (open
drain or open col-
V_DDI2C2 = 1.8 V
N/A
N/A
lector) at 3 mA
Sink Current
0.1
—
V
0
0.4
V
0
0.2 x V_DDI2C
V
Input Current
I_I2C
–10
10
–10
10
µA
Capacitance for
C_I2C
V_IN = –0.1 to V_DDI2C
—
4
—
each I/O Pin
I²C Bus Timeout
—
Timeout Enabled
25
35
25
4
pF
35
ms
Notes:
1. Refer to NXP’s UM10204 I²C-bus specification and user manual, Revision 03, for further details:
www.nxp.com/acrobat_download/usermanuals/UM10204_3.pdf.
2. Only I²C pullup voltages (VDDI2C) of 1.71 to 3.63 V are supported. Must write register 27[7] = 1 if the I²C bus voltage
is less than 2.5 V to maintain compatibility with the I²C bus standard.
14
Rev. 0.6