MCP9808 MICROCHIP [Microchip Technology], MCP9808 Datasheet - Page 5

• Manufacturer Part Number: MCP9808
• Manufacturer: MICROCHIP [Microchip Technology]

SENSOR SERIAL INTERFACE TIMING SPECIFICATIONS
TIMING DIAGRAM
© 2011 Microchip Technology Inc.
Electrical Specifications: Unless otherwise indicated, V
and C
2-Wire SMBus/Standard Mode I
Serial Port Clock Frequency
Low Clock
High Clock
Rise Time
Fall Time
Data in Setup Time
Data In Hold Time
Data Out Hold Time
Start Condition Setup Time
Start Condition Hold Time
Stop Condition Setup Time
Bus Free
Time-out
Bus Capacitive Load
Note 1:
SDA
SCL
L
2:
3:
4:
5:
START Condition
t
= 80 pF.
SU-START
All values referred to V
If t
is required for communication.
This device can be used in a Standard mode I
be met. This device does not stretch the SCL Low time.
As a transmitter, the device provides internal minimum delay time, t
region (min. 200 ns) of the falling edge of SCL, t
conditions.
As a receiver, SDA should not be sampled at the falling edge of SCL. SDA can transition t
SCL toggles Low.
Parameters
LOW
(Note
t
HD-START
> t
OUT
1)
or t
HIGH
t
OUT
2
> t
IL MAX
C™ Compatible Interface
OUT
, the temperature sensor I
and V
t
t
t
SU-START
HD-START
SU-STOP
t
t
B-FREE
t
t
t
HD-DO
Sym
t
SU-DI
HD-DI
t
IH MIN
HIGH
LOW
f
OUT
C
SC
t
t
t
R
F
SU-DI
b
levels.
Data Transmission
2
DD
C bus system, but the requirement, t
t
HD-DI/
F MAX
= 2.7V to 5.5V, T
1300
1300
Min
(Note
600
100
200
600
600
600
20
20
25
—
0
0
t
, to avoid unintended generation of Start or Stop
HD-DO
2
C interface will time-out. A Repeat Start command
1)
t
HIGH
Max
400
300
300
900
400
35
—
—
—
—
—
—
—
—
A
HD-DO MIN
t
t
= -40°C to +125°C, GND = Ground
LOW
R
, t
F
, to bridge the undefined
Units
kHz
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pf
MCP9808
SU-DI
STOP Condition
t
SU-STOP
(Note
(Note
(Note
(Note
(Note
(Note
≥ 100 ns, must
DS25095A-page 5
HD-DI
Conditions
t
B-FREE
2, 4)
2)
2)
3)
5)
4)
0 ns after