MB88141 Fujitsu Media Devices, MB88141 Datasheet - Page 10

• Manufacturer Part Number: MB88141
• Description: A/D Converter
• Manufacturer: Fujitsu Media Devices

10
MB88141
D0 to D7
D0 to D7
TIMING CHART (I
AO1 to
Note:
• The SDA input acknowledge response (ACK) is an output signal from the MB88141.
• The D0-D7 input and output timing represent the timing of switching to write and read operations respectively.
ANALOG OUTPUT VOLTAGE RANGE
output
output
AO12
input
input
input
SDA
SDA
SCL
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.
condition
"Start"
R-2R ladder circuit
VDD1 & VDD2
VSS1 & VSS2
S6
1
S5
2
Analog output
S4
2
3
C BUS SPECIFICATIONS)
S3
4
HiZ state
HiZ input
HiZ state
S2
5
change
Data
S1
6
S0 R/W ACK
7
"Acknowledge"
response
"Acknowledge"
8
response
DX
9
Load data
D7
C7
10
C6
D6 D5
11
C5
12
GND (
Operating amp circuit
VCC (
"Acknowledge"
D0
C0
17
response
ACK
VSS1, VSS2)
VDD1, VDD2)
18
D7
D7
19
Load data
Analog output range
D6
D6
20
"Acknowledge"
D0
D0
26
response
ACK
27
Delay
Delay
Digital input
D7
condition
"Stop"