MP7528 Exar Corporation, MP7528 Datasheet - Page 9

• Manufacturer Part Number: MP7528
• Description: Cmos Dual Buffered Multiplying 8-bit Digital-to-analog Converter
• Manufacturer: Exar Corporation

MICROPROCESSOR INTERFACE
PERFORMANCE CHARACTERISTICS
CPU
6800
Rev. 2.00
A0-A15
D0–D7
V
Figure 2. MP7528 Dual DAC to 6800
MA
Graph 1. Relative Accuracy vs. Digital Code
2
Analog circuitry has been omitted for clarity
*A = Decoded 7528 DAC A Address
**A + 1 = Decoded 7528 DAC B Address
Address
Decode
Logic
CPU Interface
A*
A+1**
Data Bus
Address Bus
5 V
DB0
DB7
DACA/DACB
CS
WR
MP7528
DAC A
DAC B
9
AD0–AD7
A8-A15
CPU
8085
Graph 2. Relative Accuracy vs. Digital Code
ALE
WR
Figure 3. MP7528 Dual DAC to 8085
NOTE:
8085 instruction SHLD (store H & L direct) can update
both DACS with data from H and L registers
Analog circuitry has been omitted for clarity
*A = Decoded 7528 DAC A Address
**A + 1 = Decoded 7528 DAC B Address
Address
Decode
Logic
Latch
8212
CPU Interface
A*
A+1**
15 V
Address Bus
ADDR/Data Bus
MP7528
DACA/DACB
CS
WR
DB0
DB7
MP7528
DAC A
DAC B