參數(shù)資料
型號(hào)： DS14C238WM/NOPB
廠商： National Semiconductor
文件頁(yè)數(shù)： 8/13頁(yè)
文件大?。?/td> 0K
描述： IC DVR/RCVR SINGLE SUPP 24-SOIC
標(biāo)準(zhǔn)包裝： 30
類型： 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)： 4/4
規(guī)程： RS232
電源電壓： 4.5 V ~ 5.5 V
安裝類型： 表面貼裝
封裝/外殼： 24-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 24-SOIC
包裝： 管件
其它名稱： *DS14C238WM
*DS14C238WM/NOPB
DS14C238WM
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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DS14C238WMX 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
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