MB88101A Fujitsu Microelectronics, Inc., MB88101A Datasheet - Page 5

• Manufacturer Part Number: MB88101A
• Description: CMOS A/D Converter (with 4-channel Input at 12-bit Resolution)
• Manufacturer: Fujitsu Microelectronics, Inc.

1. Mode 1
2. Mode 2
• Timing diagram
• Timing diagram
FUNCTIONAL DESCRIPTION
This mode sets the DO pin to “L” and stops conversion upon completion of conversion of 12 bits. To restart
conversion, set CS to “H” once then to “L”. In this mode, converted data is output from the MSB.
This mode continues conversion until CS becomes “H” after it becomes “L”. Converted data is output from the
LSB, with the first piece of converted data output 20 clock cycles after CS becomes “L”. Changing the channel
select pin settings before starting sampling of one analog input allows another to be converted.
MOD0, 1
MOD0, 1
MOD0, 1
SAMP
C
SAMP
C
Trial
Bit
Trial
0
CLK
0
CLK
, C
DO
Bit
, C
CS
DO
CS
1
1
Hi-z
Hi-z
AN
1
Sampling
0
Mode 2
2
MSB (AN
Hi-z
Hi-z
3
16CLK
B11
4
0
)
5
LSB
B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
B11
6
B10 B9 B8 B7
AN
7
2
8
MSB (AN
9
LSB (AN
10 11 12 13 14 15 16
2
)
B6 B5 B4 B3 B2
0
)
LSB
MSB
AN
1
MSB (AN
LSB (AN
B1 B0
1
)
2
)
LSB
MSB
Hi-z
Hi-z
MB88101A
1
Sampling
2
Hi-z
Hi-z
5