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参数资料
| 型号： | DS14C238WMX/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 8/13页 |
| 文件大小： | 0K |
| 描述： | IC DVR/RCVR SINGLE SUPP 24-SOIC |
| 标准包装： | 1,000 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 4/4 |
| 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： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC |
| 包装： | 带卷 (TR) |
| 其它名称： | *DS14C238WMX *DS14C238WMX/NOPB DS14C238WMX DS14C238WMX/NOPBTR DS14C238WMXTR DS14C238WMXTR-ND |
SNLS084C – MAY 1999 – REVISED APRIL 2013
Electrical Characteristics
(1)
Over recommended operating conditions, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ(2)
Max
Units
DEVICE CHARACTERISTICS
V+
Positive Power Supply
RL = 3 kΩ, C1–C4 = 1.0 μF, DIN = 0.8V
9.0
V
Negative Power Supply
RL = 3 kΩ, C1–C4 = 1.0 μF, DIN = 2.0V
8.0
V
ICC
Supply Current (VCC)
No Load
7.0
10
mA
DRIVER CHARACTERISTICS
VIH
High Level Input Voltage
2.0
VCC
V
VIL
Low Level Input Voltage
GND
0.8
V
IIH
High Level Input Current
VIN ≥ 2.0V
10
+10
μA
IIL
Low Level Input Current
VIN ≤ 0.8V
10
+10
μA
VOH
High Level Output Voltage
RL = 3 kΩ
5.0
7.4
V
VOL
Low Level Output Voltage
6.3
5.0
V
IOS+
Output High Short Circuit Current
VO = 0V, VIN = 0.8V
(3)3
15
5.0
mA
0
IOS
Output Low Short Circuit Current
VO = 0V, VIN = 2.0V
5.0
12
30
mA
RO
Output Resistance
2V ≤ VO ≤ +2V, VCC = GND = 0V
300
Ω
RECEIVER CHARACTERISTICS
VTH
Input High Threshold Voltage
1.9
2.4
V
VTL
Input Low Threshold Voltage
0.8
1.5
V
VHY
Hysteresis
0.2
0.4
1.0
V
RIN
Input Resistance
3.0
4.5
7.0
k
Ω
IIN
Input Current
VIN = +15V
2.14
3.8
5.0
mA
VIN = +3V
0.43
0.6
+1.0
mA
VIN = 3V
1.0
0.6
0.43
mA
VIN = 15V
5.0
3.8
2.14
mA
VOH
High Level Output Voltage
VIN = 3V, IO = 3.2 mA
3.5
4.5
V
VIN = 3V, IO = 20 μA
4.0
4.9
V
VOL
Low Level Output Voltage
VIN = +3V, IO = +2.0 mA
0.25
0.4
V
(1)
Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground
unless otherwise specified.
(2)
All typicals are given for VCC = 5.0V and TA = +25°C.
(3)
IOS+ and IOS values are for one output at a time. If more than one output is shorted simultaneously, the device power dissipation may
be exceeded.
4
Copyright 1999–2013, Texas Instruments Incorporated
Product Folder Links: DS14C238
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