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參數(shù)資料
| 型號： | MAX349 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Serially Controlled, Low-Voltage, 8-Channel Multiplexers(接通電阻100Ω,漏電流0.1nA,導通速率0.275μs,串行控制多路轉換器) |
| 中文描述： | 串行控制、低電壓、8通道和雙4通道多路復用器 |
| 文件頁數(shù)： | 13/20頁 |
| 文件大?。?/td> | 214K |
| 代理商： | MAX349 |
M
S erially Controlled, Low-Voltage,
8-Channel/Dual 4-Channel Multiplexers
______________________________________________________________________________________
13
______________________________________________________________Pin Desc ription
Note:
NO and COM pins are identical and interchangeable. Either may be considered as an input or an output; signals pass equally
well in either direction.
SCLK
DIN
DOUT
COM-OUT
CS
t
DO
t
DH
t
DS
t
CSS
t
CH
t
CL
t
CSH2
t
ON
,
t
OFF
Figure 1. Timing Diagram
1
2
3
Serial Clock Digital Input
Positive Analog Supply Voltage Input
Serial Data Digital Input
Ground. Connect to digital ground. (Analog signals have
no ground reference; they are limited to V+ and V-.)
5
Common Analog Switch (mux output)
Normally Open Analog Switch Inputs 0–7
Common Analog Switch “A” (mux output)
Normally Open Analog Switch “A” Inputs 0–3
Normally Open Analog Switch “B” Inputs 0–3
Common Analog Switch “B” (mux output)
No Connect, not internally connected.
6–13
—
—
—
—
14
4
1
2
3
SCLK
V+
DIN
5
COM
NO0–NO7
COMA
NO0A–NO3A
NO3B–NO0B
COMB
N.C.
6–9, 11–14
—
—
—
—
10, 15, 16
4
GND
15
Negative Analog Supply Voltage Input. Connect to GND
for single-supply operation.
Serial Data Digital Output. Output high is V+.
RESET Input. Connect to logic high (or V+) for normal operation.
Drive low to set all switches off and set internal shift registers to 0.
Chip-Select Digital Input (Figure 1)
16
17
18
17
V-
18
DOUT
19
RESET
20
CS
MAX349
SSOP
DIP/SO
NAME
FUNCTION
1
2
3
—
—
5
6–9
10–13
14
—
4
1
2
3
—
—
5
6–9
11–14
15
10, 16
4
15
16
17
18
17
18
19
20
MAX350
SSOP
DIP/SO
PIN
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