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參數資料
| 型號： | ADM561JRSZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | Ultralow Power +3.3 V, RS-232 Notebook PC Serial Port Drivers/Receivers |
| 中文描述： | LINE TRANSCEIVER, PDSO28 |
| 封裝： | LEAD FREE, MO-150AH, SSOP-28 |
| 文件頁數： | 5/12頁 |
| 文件大小： | 186K |
| 代理商： | ADM561JRSZ |
ADM560/ADM561
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Rev. B | Page 5 of 12
T3
OUT
T1
OUT
T2
OUT
R2
IN
R2
OUT
T2
IN
T1
IN
R1
OUT
R1
IN
GND
10
V
CC
C1+
12
V+
13
C1–
14
1
2
3
4
T4
OUT
R3
IN
R3
OUT
SHDN
EN
R4
IN
R4
OUT
T4
IN
T3
IN
R5
OUT
R5
IN
V–
C2–
C2+
28
27
26
25
5
6
7
24
23
22
8
21
9
20
19
11
18
17
16
15
ADM560
TOP VIEW
(Not to Scale)
0
T3
OUT
T1
OUT
T2
OUT
R2
IN
R2
OUT
T2
IN
T1
IN
R1
OUT
R1
IN
GND
10
V
CC
C1+
12
V+
13
C1–
14
1
2
3
4
T4
OUT
R3
IN
R3
OUT
SHDN
EN
R4
IN
R4
OUT
T4
IN
T3
IN
R5
OUT
R5
IN
V–
C2–
C2+
28
27
26
25
5
6
7
24
23
22
8
21
9
20
19
11
18
17
16
15
ADM561
TOP VIEW
(Not to Scale)
0
Figure 2.ADM560 Pin Configuration
Figure 3. ADM561 Pin Configuration
Table 3. Pin Function Descriptions
Pin No.
Mnemonic
2, 3, 1, 28
T1
OUT
to T4
OUT
9, 4, 27, 23, 18
R1
IN
to R5
IN
Description
Transmitter (Driver) Outputs. Typically ±6 V.
Receiver Inputs. These inputs accept RS-232 signal levels. An internal 5 kΩ pull-down resistor to GND is
connected on each of these inputs.
Receiver Outputs. These are 3 V logic levels.
Transmitter (Driver) Inputs. These inputs accept 3 V or 5 V logic levels. An internal 400 kΩ pull-up resistor
to V
CC
is connected on each input.
Ground Pin. Must be connected to 0 V.
Power Supply Input 3.3 V ± 10%.
External Capacitor 1 is connected between these pins.
Internally Generated Positive Supply. +6.6 V nominal.
External Capacitor 2 is connected between these pins.
Internally Generated Negative Supply. 6.6 V nominal.
Receiver Enable. EN, active high on ADM560. EN, active low on ADM561. Refer to Table 4.
Shutdown Control. SHDN, active low on ADM560. SHDN, active high on ADM561. Refer to Table 4.
8, 5, 26, 22, 19
7, 6, 20, 21
R1
OUT
to R5
OUT
T1
IN
to T4
IN
10
11
12, 14
13
15, 16
17
24
25
GND
V
CC
C1+, C1
V+
C2+, C2
V
EN/EN
SHDN/SHDN
Table 4. ADM560/ADM561 Enable and Shutdown Control
Normal Operation
ADM560
SHDN = 1
EN = 1; receivers active
EN = 0; receivers inactive
SHDN = 0
EN = 1; Receiver R1 to Receiver R3 inactive
EN = 1; Receiver R4 and Receiver R5 active
EN = 0; Receiver R1 to Receiver R5 inactive
ADM561
SHDN = 0
EN = 0; receivers active
EN = 1; receivers inactive
SHDN = 1
EN = 0; receivers inactive
EN = 1; receivers inactive
Shutdown Mode
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