参数资料
型号: DAC8143FSZ
厂商: Analog Devices Inc
文件页数: 4/12页
文件大小: 0K
描述: IC DAC 12BIT DAISY-CHAIN 16-SOIC
产品培训模块: Data Converter Fundamentals
DAC Architectures
标准包装: 47
设置时间: 380ns
位数: 12
数据接口: 串行
转换器数目: 1
电压电源: 单电源
功率耗散(最大): 500µW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
供应商设备封装: 16-SOIC W
包装: 管件
输出数目和类型: 2 电流,单极;2 电流,双极
采样率(每秒): 2.63M
产品目录页面: 786 (CN2011-ZH PDF)
DAC8143
–12–
REV. C
DAC8143 INTERFACE TO THE 8085
The DAC8143’s interface to the 8085 microprocessor is shown
in Figure 22. Note that the microprocessor’s SOD line is used
to present data serially to the DAC.
Data is strobed into the DAC8143 by executing memory write
instructions. The strobe 2 input is generated by decoding an
address location and
WR. Data is loaded into the DAC register
with a memory write instruction to another address location.
Serial data supplied to the DAC8143 must be present in the
right-justified format in registers H and L of the microprocessor.
STB1 DAC8143*
SRI
SRO
LD2
LD1
STB3
STB2
STB4
CLR
74LS138
ADDRESS
DECODER
A0
A2
E1
E3
E2
WR
ALE
SOD
8085
ADDRESS BUS (16)
DATA
+5V
FROM SYSTEM RESET
*ANALOG CIRCUITRY OMITTED FOR SIMPLICITY
+5V
A0–A15
8212
(8)
(8) AD0–7
Figure 22. DAC8143—8085 Interface
DAC8143 INTERFACE TO THE 68000
Figure 23 shows the DAC8143 configured to the 68000 micro-
processor. Serial data input is similar to that of the 6800 in
Figure 21.
STB1
DAC8143
SRI
LD2
LD1
STB3
STB4
CLR
ADDRESS
DECODER
A1
A23
AS
DB15
DB0
68000 P
ADDRESS BUS
DATA BUS
FROM SYSTEM RESET
CS
VMA
VPA
UDS
+5V
1/4 74HC125
+
STB2
Figure 23. DAC8143 to 68000
P Interface
OUTLINE DIMENSIONS
Dimensions are shown in inches and (mm).
16-Lead Plastic DIP
(N-16)
16
18
9
PIN 1
0.840 (21.34)
0.745 (18.92)
0.280 (7.11)
0.240 (6.10)
SEATING
PLANE
0.060 (1.52)
0.015 (0.38)
0.210 (5.33)
MAX
0.022 (0.558)
0.014 (0.356)
0.160 (4.06)
0.115 (2.93)
0.100
(2.54)
BSC
0.070 (1.77)
0.045 (1.15)
0.130
(3.30)
MIN
0.195 (4.95)
0.115 (2.93)
0.015 (0.381)
0.008 (0.204)
0.325 (8.25)
0.300 (7.62)
16-Lead SOIC
(R-16W)
SEATING
PLANE
0.0118 (0.30)
0.0040 (0.10)
0.0192 (0.49)
0.0138 (0.35)
0.1043 (2.65)
0.0926 (2.35)
0.050 (1.27)
BSC
16
9
8
1
0.4193 (10.65)
0.3937 (10.00)
0.2992 (7.60)
0.2914 (7.40)
PIN 1
0.4133 (10.50)
0.3977 (10.00)
0.0125 (0.32)
0.0091 (0.23)
8
0
0.0291 (0.74)
0.0098 (0.25)
45
0.0500 (1.27)
0.0157 (0.40)
C3114c–2–3/99
PRINTED
IN
U.S.A.
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