MCP9802 Microchip Technology Inc., MCP9802 Datasheet - Page 4

• Manufacturer Part Number: MCP9802
• Description: 2-wire High-accuracy Temperature Sensor
• Manufacturer: Microchip Technology Inc.

MCP9800/1/2/3
SERIAL INTERFACE TIMING SPECIFICATIONS
Timing Diagram
DS21909B-page 4
Electrical Specifications: Unless otherwise indicated, V
C
2-Wire I
Serial Port Frequency
Clock Period
Low Clock
High Clock
Rise Time
Fall Time
Data Setup Before SCLK High
Data Hold After SCLK Low
Start Condition Setup Time
Start Condition Hold Time
Stop Condition Setup Time
Bus Idle
Time Out
L
= 80 pF, and all limits measured to 50% point.
START Condition
Data Transmission
STOP Condition
2
C/SMBus Compatible Interface
Parameters
SCLK
SDA
SCLK
SDA
SCLK
SDA
t
SU-DATA
t
SU-START
t
t
t
SU-START
t
SU-STOP
SU-DATA
t
H-START
H-DATA
t
Sym
t
t
t
HIGH
LOW
IDLE
f
f
t
OUT
SC
SC
SC
t
t
R
F
t
H-START
Min
2.5
1.3
0.6
0.1
0.6
0.6
0.6
1.3
10
20
20
25
0
0
t
H-DATA
Typ
35
—
—
—
—
—
—
—
—
—
—
—
—
—
DD
t
SU-STOP
= 2.7V to 5.5V, GND = Ground, -55°C < T
Max
400
400
300
300
0.9
50
—
—
—
—
—
—
—
—
Units
kHz
kHz
ms
µs
µs
µs
µs
µs
µs
µs
µs
µs
t
ns
ns
IDLE
t
HIGH
I
SMBus MCP9802/03
10% to 90% of V
90% to 10% of V
MCP9802/03 only
2
C MCP9800/01
t
SC
 2004 Microchip Technology Inc.
t
t
R
OUT
,t
t
F
LOW
Conditions
DD
DD
(SCLK, SDA)
(SCLK, SDA)
A
< +125°C,