Datasheet

LTC2389-18
31
238918f
applicaTions inFormaTion
Figure 14. Read the Parallel Data Continuously.
The Data Bus Is Always Driven and Cannot Be Shared
Figure 15. Read the Parallel Data After the Conversion
CS = 0, MODE[1:0] = 00
t
BUSYLH
t
DDBUSYL
t
CONV
CNVST
BUSY
DATA BUS
D[17:0]
PREVIOUS CONVERSION
CURRENT
CONVERSION
238918 F14
t
CNVSTL
CS
BUSY
DATA BUS
D[17:0]
MODE[1:0] = 00
Hi-Z
CURRENT
CONVERSION
t
EN
t
DIS
238918 F15
Hi-Z
Figure 16. Read the Parallel Data During
the Following Conversion
DATA BUS
D[17:0]
BUSY
Hi-Z
PREVIOUS CONVERSION
t
EN
t
CNVSTL
t
CONV
t
BUSYLH
t
DIS
238918 F16
Hi-Z
CNVST, CS
MODE[1:0] = 00
Figure 17. 16-Bit Parallel Interface Using A[1:0] Pins
Figure 18. 8-Bit Parallel Interface Using A[1:0] Pins
CS
A0
D[17:2]
HIGH 16 BITS LOW 2 BITS
16-BIT INTERFACE
Hi-Z Hi-Z
238918 F17
t
EN
t
DDA1A0
t
DIS
MODE[1:0] = 01, A1 = X
CS
A0
A1
D[17:10]
HIGH 8 BITS MIDDLE 8 BITS LOW 2 BITS
8-BIT INTERFACE
Hi-Z Hi-Z
238918 F18
t
EN
t
DDA1A0
t
DIS
MODE[1:0] = 10
t
DDA1A0