mm1442 Mitsumi Electronics, Corp., mm1442 Datasheet - Page 8

• Manufacturer Part Number: mm1442
• Description: Anal+compatible I 2 C Bus Controlled 4-input 3-output Av Switch
• Manufacturer: Mitsumi Electronics, Corp.

MITSUMI
SDA
SCL
I
2
I
2 (SDA, SCL) lines. Data are transmitted and received in the units of bytes by MSB first from the start
condition.
[Control registers]
Control registers are data sent from the master for determining the switch condition of the MM1422 series.
C BUS
2
S
C BUS (Inter IC BUS) is an inter bus system developed by Philips Co. It transmits and receives data through
SDA
SCL
Data transfer waiting time
SCL high level hold time
SCL low level hold time
I
2
P
SCL start setup time
SDA data setup time
SCL stop setup time
C BUS control signal
1
SCL start hold time
SDA data hold time
t
BUF
SCL rise time
SCL fall time
0
Slave address
S
S
Address byte
0
Item
Canal+Compatible I
t
HD:STA
1
1
0
2
t
LOW
0
t
R
3
0
R/W
0
Symbol
t
t
t
t
t
4
HD
HD
SU
SU
SU
2
t
t
t
C Bus Controlled 4-input 3-output AV Switch MM1422, 1423, 1442, 1443
HIGH
LOW
BUF
A
t
t
t
:
:
:
:
:
R
F
HD:DAT
DAT
STA
DAT
STO
STA
5
b7 b6 b5 b4 b3 b2 b1 b0
Control Register 1
6
t
HIGH
7
Measurement conditions
t
t
F
SU:DAT
8
A
t
Control data
SU:STA
1
A
Sr
2
b7 b6 b5 b4 b3 b2 b1 b0
3
Control Register 2
7
Min. Typ. Max. Unit
200
250
4.7
4.0
4.7
4.0
4.7
4.0
S : Start Condition
P : Stop Condition
A : Acknowledge
8
A
t
SU:STO
1000
300
P
P
A
µs
µs
µs
µs
µs
ns
ns
ns
ns
µs
P