参数资料
型号: ADM560JR-REEL
厂商: Analog Devices Inc
文件页数: 8/12页
文件大小: 0K
描述: IC TXRX RS232 4:5 3.3V LP 28SOIC
标准包装: 1,000
类型: 收发器
驱动器/接收器数: 4/5
规程: RS232
电源电压: 3 V ~ 3.6 V
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC W
包装: 带卷 (TR)
ADM560/ADM561
Rev. B | Page 5 of 12
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
T3OUT 1
T1OUT 2
T2OUT 3
R2IN 4
T4OUT
28
R3IN
27
R3OUT
26
SHDN
25
R2OUT 5
T2IN 6
T1IN 7
EN
24
R4IN
23
R4OUT
22
R1OUT 8
T4IN
21
R1IN 9
T3IN
20
GND 10
R5OUT
19
VCC 11
R5IN
18
C1+ 12
V–
17
V+ 13
C2–
16
C1– 14
C2+
15
ADM560
TOP VIEW
(Not to Scale)
05
66
7-
0
02
T3OUT 1
T1OUT 2
T2OUT 3
R2IN 4
T4OUT
28
R3IN
27
R3OUT
26
SHDN
25
R2OUT 5
T2IN 6
T1IN 7
EN
24
R4IN
23
R4OUT
22
R1OUT 8
T4IN
21
R1IN 9
T3IN
20
GND 10
R5OUT
19
VCC 11
R5IN
18
C1+ 12
V–
17
V+ 13
C2–
16
C1– 14
C2+
15
ADM561
TOP VIEW
(Not to Scale)
05
66
7-
0
12
Figure 2.ADM560 Pin Configuration
Figure 3. ADM561 Pin Configuration
Table 3. Pin Function Descriptions
Pin No.
Mnemonic
Description
2, 3, 1, 28
T1OUT to T4OUT
Transmitter (Driver) Outputs. Typically ±6 V.
9, 4, 27, 23, 18
R1IN to R5IN
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.
8, 5, 26, 22, 19
R1OUT to R5OUT
Receiver Outputs. These are 3 V logic levels.
7, 6, 20, 21
T1IN to T4IN
Transmitter (Driver) Inputs. These inputs accept 3 V or 5 V logic levels. An internal 400 kΩ pull-up resistor
to VCC is connected on each input.
10
GND
Ground Pin. Must be connected to 0 V.
11
VCC
Power Supply Input 3.3 V ± 10%.
12, 14
C1+, C1
External Capacitor 1 is connected between these pins.
13
V+
Internally Generated Positive Supply. +6.6 V nominal.
15, 16
C2+, C2
External Capacitor 2 is connected between these pins.
17
V
Internally Generated Negative Supply. 6.6 V nominal.
24
EN/EN
Receiver Enable. EN, active high on ADM560. EN, active low on ADM561. Refer to Table 4.
25
SHDN/SHDN
Shutdown Control. SHDN, active low on ADM560. SHDN, active high on ADM561. Refer to Table 4.
Table 4. ADM560/ADM561 Enable and Shutdown Control
ADM560
ADM561
SHDN = 1
SHDN = 0
EN = 1; receivers active
EN = 0; receivers active
Normal Operation
EN = 0; receivers inactive
EN = 1; receivers inactive
SHDN = 0
SHDN = 1
EN = 1; Receiver R1 to Receiver R3 inactive
EN = 0; receivers inactive
EN = 1; Receiver R4 and Receiver R5 active
EN = 1; receivers inactive
Shutdown Mode
EN = 0; Receiver R1 to Receiver R5 inactive
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