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参数资料
| 型号： | DS229S+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/9页 |
| 文件大小： | 0K |
| 描述： | IC TXRX TRI 5V RS-232 20-SOIC |
| 标准包装： | 1,000 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 3/3 |
| 规程： | RS232 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 带卷 (TR) |
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112099
FEATURES
Compatible with DS1229
5V operation
20-pin DIP or SOIC package
20-pin TSSOP package for height restricted
applications
Operate from single +5V power
Meets all EIA-232E and V.28 specifications
Uses small capacitors: 0.1
F
Optional industrial temperature range
available (-40
°C to +85°C)
ORDERING INFORMATION
DS229
20-pin DIP
DS229N
20-pin DIP (Industrial)
DS229S
20-pin SOIC
DS229SN
20-pin SOIC (Industrial)
DS229E
20-pin TSSOP
DS229EN
20-pin TSSOP (Industrial)
PIN ASSIGNMENT
PIN DESCRIPTION
VCC
- +5-Volt Supply
GND
- Ground
V+
- Positive Supply Output
V-
- Negative Supply Output
T1IN, T2IN, T3IN
- RS-232 Driver Inputs
T1OUT, T2OUT, T3OUT - RS-232 Driver Outputs
R1IN, R2IN, R3IN
- Receiver Inputs
R1OUT, R2OUT, R3OUT - Receiver Outputs
C1+, C1-
- Capacitor 1 Connections
C2+, C2-
- Capacitor 2 Connections
DESCRIPTION
The DS229 is a triple RS-232 driver/receiver pair that generates RS-232 voltage levels from a single +5-
volt power supply. Additional
±12-volt supplies are not needed since the DS229 uses on-board charge
pumps to convert the +5-volt supply to
±10 volts. The DS229 is fully compliant with EIA RS-232E and
V.28/V.24 standards. The DS229 contains three drivers and three receivers. Driver slew rates and data
rates are guaranteed up to 116 kbits/sec. The DS229 operates with only 0.1
F charge pump capacitors.
OPERATION
The diagram in Figure 1 shows the main elements of the DS229. The following paragraphs describe the
function of each pin.
DS229
Triple RS-232 Transmitter/Receiver
www.dalsemi.com
20-Pin DIP, SOIC AND TSSOP
19
C1-
C2-
T2OUT
R2IN
T3OUT
R3IN
VCC
R1IN
R1OUT
T1IN
T2IN
R2OUT
T3IN
R3OUT
1
2
3
4
5
6
7
8
9
10
20
18
17
16
15
14
13
12
11
V+
C2+
V-
C1+
GND
T1OUT
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