BU2090FS-E2 Rohm Semiconductor, BU2090FS-E2 Datasheet - Page 7

• Manufacturer Part Number: BU2090FS-E2
• Description: IC DRVR SER/PAR I/O 12B SSOP-A16
• Manufacturer: Rohm Semiconductor
• Type: Driverr

Specifications of BU2090FS-E2

• Voltage - Supply: 2.7 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Output Current: 25mA
• No. Of Outputs: 12
• Supply Voltage Range: 2.7V To 5.5V
• Driver Case Style: SSOP
• No. Of Pins: 16
• Operating Temperature Range: -40°C To +85°C
• Svhc: No SVHC (18-Jun-2010)
• Base: RoHS Compliant
• Supply Current: 5 uA to 3 uA
• Maximum Operating Temperature: 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Output Voltage: 5.5 V to 25 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Drivers/receivers: -
• Protocol: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: BU2090FS-E2; BU2090FS-E2TR

○Write DATA
○Data format
S
S
Send the stave address from master following the start condition (S). This address consists of 7 bits. The left 1 bit (the
foot bit) is fixed “0”. The stop condition (P) is needed to finish the data transferred. But the re-send starting condition
(Sr) enables to transfer the data without STOP (P).
The format is following.
S
A6
Slave address
0
0
0
0
0
0
0
0
slave address
slave address
A6
Write Data
A5
A5
SLAVE ADDRESS
Fixed for BU2098F
A4
1
1
1
1
1
1
1
1
R/W
R/W
A3
A2
D0～D7
A0～A2
A3～A6
“0” (Write)
“0” (Write)
A4
ACK
ACK
R/W
1
1
1
1
1
1
1
1
Table 2 for (A2, A1, A0) to SLAVE ADDRESS
A1
DATA
DATA
A0
Table 1 for WRITE format
Each bit can be defined by the input levels of pins A0～A3.
These 4 bits are fixed.
“0”
Write “1” to D0 makes Q0 pin High-impedance. And write “0” makes Q0
pin LOW. D[1:7] and Q[1:7] are same as D0 and Q0.
A3
1
1
1
1
1
1
1
1
Fig.4 DATA transmit
R/W ACK
ACK
ACK
7/12
Sr
P
A2
0
0
0
0
1
1
1
1
D7
slave address
Defined by external pin A0～A2
D6
A1
D5
0
0
1
1
0
0
1
1
WRITE DATA
D4
R/W
D3
A0
“0” (Write)
0
1
0
1
0
1
0
1
ACK
D2
DATA
D1
Slave address
D0
ACK
3AH
3BH
3CH
3DH
3EH
38H
39H
3FH
ACK
P
P