ADUCM360 AD [Analog Devices], ADUCM360 Datasheet - Page 12

• Manufacturer Part Number: ADUCM360
• Description: Low Power Precision Analog Microcontroller
• Manufacturer: AD [Analog Devices]

ADuCM360/ADuCM361
I
Capacitive load for each of the I
I
Table 6. I
Parameter
t
t
t
t
t
t
t
t
t
t
t
Table 7. I
Parameter
t
t
t
t
t
t
t
t
t
t
1
SDA (I/O)
2
2
L
H
SHD
DSU
DHD
RSU
PSU
BUF
R
F
SUP
L
H
SHD
DSU
DHD
RSU
PSU
BUF
R
F
I
C timing is guaranteed by design and not production tested.
C TIMING DIAGRAMS
2
C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors).
SCL (I)
t
PSU
2
2
C Timing in Fast Mode (400 kHz)
C Timing in Standard Mode (100 kHz)
CONDITION
STOP
Description
Serial Clock (SCL) low pulse width
SCL high pulse width
Start condition hold time
Data setup time
Data hold time
Setup time for repeated start
Stop condition setup time
Bus-free time between a stop condition and a start condition
Rise time for both SCL and serial data (SDA)
Fall time for both SCL and SDA
Pulse width of spike suppressed
Description
SCL low pulse width
SCL high pulse width
Start condition hold time
Data setup time
Data hold time
Setup time for repeated start
Stop condition setup time
Bus-free time between a stop condition and a start condition
Rise time for both SCL and SDA
Fall time for both SCL and SDA
P
t
BUF
CONDITION
START
S
2
C
1
t
DSU
-bus line, Cb = 400pF maximum as per I
t
SHD
MSB
1
Figure 2. I
t
DHD
2–7
Rev. Pr R Page 12 of 21
2
C Compatible Interface Timing
t
t
H
L
LSB
8
t
SUP
2
C-bus specifications.
t
DSU
t
SUP
ACK
9
Preliminary Technical Data
t
RSU
Min
1300
600
600
100
0
600
600
1.3
20 + 0.1 Cb
20 + 0.1 Cb
0
Min
4.7
4.0
4.7
250
0
4.0
4.0
4.7
-
-
t
DHD
REPEATED
START
S(R)
Max
-
-
-
-
-
-
-
-
300
300
50
Max
-
-
-
-
-
-
-
-
1
300
t
F
MSB
t
F
1
t
R
t
R
Unit
μs
ns
μs
ns
μs
μs
μs
μs
μs
ns
Unit
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns