MCP4725 Microchip Technology, MCP4725 Datasheet - Page 25

• Manufacturer Part Number: MCP4725
• Description: 12-Bit Digital-to-Analog Converter
• Manufacturer: Microchip Technology

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TABLE 7-1:
© 2007 Microchip Technology Inc.
Electrical Specifications: Unless otherwise specified, all limits are specified for T
Clock frequency
Clock high time
Clock low time
SCL rise time (Note 1)
SCL fall time (Note 1)
SDA rise time (Note 1)
SDA fall time (Note 1)
START condition hold time
Repeated START condition
setup time
Data hold time (Note 4)
Data input setup time
STOP condition setup time
STOP condition hold time
Output valid from clock
(Notes 2 and 3)
Bus free time
Note 1:
High Speed Mode (Note 5)
2:
3:
4:
5:
Parameters
This parameter is ensured by characterization and not 100% tested.
This specification is not a part of the I2C specification. This specification is equivalent to the Data Hold Time (
plus SDA Fall (or rise) time:
If this parameter is too short, it can create an unintended Start or Stop condition to other devices on the bus line. If this
parameter is too long, Clock Low time (T
For Data Input: This parameter must be longer than t
Clock Low time (T
For Data Output: This parameter is characterized, and tested indirectly by testing T
All timing parameters in high-speed modes are tested at V
I
2
C SERIAL TIMING SPECIFICATIONS (CONTINUED)
LOW
) can be affected.
T F: DATA
T HD:STA
T
T HD:DAT
T SU:DAT
T SU:STO
T HD:STD
T R: DAT
T HIGH
T LOW
SU:STA
Sym
T BUF
f
T AA
SCL
T R
T F
T AA
= T
HD:DAT
120
160
320
160
160
160
160
160
Min
60
10
—
—
—
—
—
0
0
0
LOW
+ T
) can be affected.
F
(
OR
Typ
T
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
SP
R
).
. If this parameter is too long, the Data Input Setup (T
DD
= 5V.
Max
160
160
150
150
310
3.4
1.7
40
80
40
80
80
80
70
—
—
—
—
—
—
—
—
A
= -40 to +85°C, V
Units
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AA
C
C
C
C
C
C
From V
C
From V
C
From V
C
From V
C
After this period, the first clock
pulse is generated
Only relevant for repeated Start
condition
C
C
C
C
Time between START and STOP
conditions.
parameter.
b
b
b
b
b
b
b
b
b
b
b
b
b
b
DD
= 100 pF
= 400 pF
= 100 pF
= 400 pF
= 100 pF
= 400 pF
= 400 pF
= 400 pF
= 400 pF
= 400 pF
= 100 pF
= 400 pF
= 100 pF
= 400 pF
= +2.7V to +5.0V, V
MCP4725
IL
IH
IL
IH
to V
to V
to V
to V
DS22039C-page 25
IH
IH
IL
IL
Conditions
,C
,C
,C
,C
b
b
b
b
= 100 pF
= 100 pF
= 100 pF
= 100 pF
SU:DAT
T HD:DAT
SS
= 0V.
) or
)