AD664TD-UNI Analog Devices Inc, AD664TD-UNI Datasheet - Page 18
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AD664TD-UNI
Manufacturer Part Number
AD664TD-UNI
Description
IC DAC 12BIT QUAD UNIPOL 28-CDIP
Manufacturer
Analog Devices Inc
Datasheet
1.AD664JNZ-BIP.pdf
(20 pages)
Specifications of AD664TD-UNI
Rohs Status
RoHS non-compliant
Settling Time
8µs
Number Of Bits
12
Data Interface
Parallel
Number Of Converters
4
Voltage Supply Source
Dual ±
Power Dissipation (max)
525mW
Operating Temperature
-55°C ~ 125°C
Mounting Type
Through Hole
Package / Case
28-CDIP (0.600", 15.24mm)
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AD664
Simple AD664 to MC68000 Interface
Figure 28 shows an AD664 connected to an MC68000. In this
memory-mapped I/O scheme, the “left-justified” data is written
in one 12-bit input word. Four address bits are used to perform
the on-chip D/A selection as well as the various operating fea-
tures. The R/W signal controls the RD function and system
reset controls RST.
Figure 28. AD664 to MC68000 Interface
–18–
This scheme can be converted to write “right-justified’’ data by
connecting the data inputs to DATA bits D0 through D11
respectively. Other options include controlling the QS0, QS1
and QS2 pins with UDS and LDS to provide a way to write
8-bit input and read 8-bit output words.
REV. C