MB88141 Datasheet, PDF (6/20 Pages) Fujitsu Component Limited. – D/A Converter for Digital Tuning (With Built-in OP Amp and I/O Expander)

MB88141
s DATA CONFIGURATION
The MB88141 data configuration differs in each of the two operating modes (D/A converter (12-channel) and
I/O expander plus D/A converter), selected by the MOD pin signal.
1. For D/A Converter (12-channel) Operation (MOD = “L”)
(1) I²C Bus Format
First S6
S0 R/W
C7
C0
D7
D0
Last
S Slave address (7 bits) 0 A Channel selection (8 bits) A
D/A data (8 bits)
AP
: Sent from master device
: Sent from MB88141 (slave device)
S: “Start” condition P: “Stop” condition A: “Acknowledge” output
(2) Slave Address Comparison (7 bits)
Slave address input (7 bits)
S6 S5 S4 S3 S2 S1 S0
1001000
1001001
1001010
1001011
1001100
1001101
1001110
1001111
Internally fixed
Externally set
CS6 CS5 CS4 CS3 CS2 CS1 CS0
=
1001000
=
1001001
=
1001010
=
1001011
=
1001100
=
1001101
=
1001110
=
1001111
Address comparison: Operates only for devices whose own slave address (internally fixed CS6 to CS3 and
externally set CS2 to CS0) matches the slave address input value.
(3) R/W Selection (1 bit)
Fixed at “0” (the D/A converter performs write operations only).
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