MB88141A Fujitsu Media Devices, MB88141A Datasheet - Page 12

• Manufacturer Part Number: MB88141A
• Description: A/D Converter
• Manufacturer: Fujitsu Media Devices

12
MB88141A
Note:
• The SDA input acknowledge response (ACK) is an output signal from the MB88141A.
• The D0-D7 input and output timing represent the timing of switching to write and read operations respectively.
AO12
AO1
D0 to D7
output
D0 to D7
input
SDA
output
SDA
input
SCL
input
to
TIMING DIAGRAM (I
ANALOG OUTPUT VOLTAGE RANGE
Also, D0-D7 input remains in HiZ state between the end of a read operation and the acknowledgment of the
next I/O write signal.
"Start"
condition
S6
1
R-2R ladder circuit
VDD1&VDD2
VSS1&VSS2
S5
2
Analog output
S4
3
HiZ state
HiZ input
HiZ state
S3
4
2
Data
change
C BUS SPECIFICATIONS)
S2
5
S1
6
S0 R/W ACK C7
7
"Acknowledge"
response
8
"Acknowledge"
response
ACK D7
DX
9
Load data
10
C6
D6
11
C5
D5
12
Operating Amp circuit
VCC ( VDD1 VDD2)
GND ( VSS1 VSS2)
C0 ACK
D0
17
"Acknowledge"
response
18
Load data
D7
D7
19
Analog output range
D6
D6
20
D0
D0
"Acknowledge"
response
26
ACK
27
Delay
Delay
Digital output
D7
"Stop"
condition