Datasheet

LTC1272
15
1272fc
For more information www.linear.com/1272
APPLICATIONS INFORMATION
Figure 15. Slow Memory Mode, Two Byte Read Timing Diagram
OLD DATA
DB7-DB0
NEW DATA
DB7-DB0
TRACK
HOLD
DATA
BUSY
RD
CS
RD
LTC1272 • F15
t
8
t
1
t
2
t
3
t
CONV
t
11
t
9
t
8
t
9
t
5
t
1
t
4
t
5
t
10
t
10
t
6
t
7
t
3
t
7
t
12
t
12
HBEN
NEW DATA
DB11-DB8
Table 3. Slow Memory Mode, Two Byte Read Data Bus Status
Data Outputs D7 D6 D5 D4 D3/11 D2/10 D1/9 D0/8
First Read DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Second Read Low Low Low Low DB11 DB10 DB9 DB8
Figure 16. ROM Mode, Parallel Read Timing Diagram
HOLD
t
12
t
7
TRACK
DATA
t
3
t
7
t
3
t
2
t
CONV
t
CONV
t
11
t
1
t
4
t
5
t
4
t
1
t
5
t
2
t
12
OLD DATA
DB11-DB0
NEW DATA
DB11-DB0
BUSY
RD
CS
LTC1272 • F16
Table 4. ROM Mode, Parallel Read Data Bus Status
Data Outputs D11 D10 D9 D8 D7 D6 D5 D4 D3/11 D2/10 D1/9 D0/8
First Read (Old Data) DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Second Read DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0