Datasheet

����������������������������������������������������������������� Maxim Integrated Products 6
MAX9257A/MAX9258A
Fully Programmable Serializer/Deserializer
with UART/I
2
C Control Channel
MAX9257A AC ELECTRICAL CHARACTERISTICS (continued)
(V
CC_
= +3.0V to +3.6V, V
CCIO
= +1.71V to +3.6V, R
L
= 50I Q1%, T
A
= -40NC to +105NC, unless otherwise noted. Typical values are
at V
CC_
= +3.3V, T
A
= +25NC.) (Notes 5, 9)
MAX9258A DC ELECTRICAL CHARACTERISTICS
(V
CC_
= +3.0V to +3.6V, V
CCIO
= +1.71V to +3.6V, R
L
= 50I Q1%, differential input voltage |V
ID
| = 0.05V to 1.2V, input common-
mode voltage V
CM
= |V
ID
/2| to V
CC
- |V
ID
/2|, T
A
= -40NC to +105NC, unless otherwise noted. Typical values are at V
CC_
= +3.3V, |V
ID
|
= 0.2V, V
CM
= 1.2V, T
A
= +25NC) (Notes 2, 3)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
I
2
C TIMING (Note 8)
Maximum SCL Clock Frequency f
SCL
4.25 MHz
Minimum SCL Clock Frequency f
SCL
95 kHz
Start Condition Hold Time t
HD:STA
(Figure 30) 0.6
Fs
Low Period of SCL Clock t
LOW
(Figure 30) 1.1
Fs
High Period of SCL Clock t
HIGH
(Figure 30) 0.6
Fs
Repeated START Condition
Setup Time
t
SU:STA
(Figure 30) 0.5
Fs
Data Hold Time t
HD:DAT
(Figure 30) 0 0.9
Fs
Data Setup Time t
SU:DAT
(Figure 30) 100 ns
Setup Time for STOP Condition t
SU:STO
(Figure 30) 0.5
Fs
Bus Free Time t
BUF
(Figure 30) 1.1
Fs
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SINGLE-ENDED INPUTS
High-Level Input Voltage V
IH
V
CCOUT
= +1.71V to +3V
0.65 x
V
CCOUT
V
CCOUT
+ 0.3
V
V
CCOUT
= +3V to +3.6V 2.0
V
CCOUT
+ 0.3
Low-Level Input Voltage V
IL
V
CCOUT
= +1.71V to +3V 0
0.3 x
V
CCOUT
V
V
CCOUT
= +3V to +3.6V 0 0.8
Input Current I
IN
V
IN
= 0 to V
CCOUT
TXIN -60 +60
FA
PD
-20 +20
Input Clamp Voltage V
CL
I
CL
= -18mA -1.5 V