MP7636A
DATA BUS
Valid
Valid
CS
BYTE1/BYTE2
WR1
XFER
+
Analog Output
Updated
WR2
Analog Output
Latched
Load 8-bit (MSB)
Input Latch
8-bit (LSB) Input
Latch also changed
Overwrite 8-bit
(LSB)
Input Latch
Transfer 16-bit
word to the DAC Register
(Analog Output Updated)
and Latched
Figure 1. Typical Interface with an 8-bit Data Bus
DATA BUS
Valid
Valid
CS
BYTE1/BYTE2
+
XFER
WR1
+
WR2
Analog Output
Updated
Analog Output
Latched
Load 8-bit (MSB)
Input Latch
8-bit (LSB) Input
Latch also changed
Overwrite the 8-bit (LSB)
Input Latch and Transfer
all 16 bits word to the
DAC Register
Figure 2. Automatic Transfer
Rev. 2.00
6
EXAR [ EXAR CORPORATION ]
