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參數(shù)資料
| 型號： | ADM3493ARZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS-422/485 3.3V 8-SOIC |
| 標準包裝： | 1,000 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422，RS485 |
| 電源電壓： | 3 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
ADM3493
Rev. 0 | Page 6 of 12
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
RO 1
RE 2
DE 3
DI 4
VCC
8
B
7
A
6
GND
5
ADM3493
TOP VIEW
(Not to Scale)
05
71
5-
00
2
Figure 2. Pin Configuration
Table 4. . Pin Function Descriptions
Pin No.
Mnemonic
Description
1
RO
Receiver Output. When enabled, if A > B by 200 mV, then RO = high.
If A < B by 200 mV, then RO = low.
2
RE
Receiver Output Enable. A low level enables the receiver output, RO. A high level
places it in a high impedance state. If RE is high and DE is low, the device enters a low
power shutdown mode.
3
DE
Driver Output Enable. A high level enables the driver differential Outputs A and B.
A low level places it in a high impedance state. If RE is high and DE is low, the device
enters a low power shutdown mode.
4
DI
Driver Input. When the driver is enabled, a logic low on DI forces A low and B high
while a logic high on DI forces A high and B low.
5
GND
Ground.
6
A
Noninverting Receiver Input A and Noninverting Driver Output A.
7
B
Inverted Receiver Input B and Inverted Driver Output B.
8
VCC
Power Supply, 3.3 V ± 0.3 V.
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