- 您现在的位置：买卖IC网 > PDF目录1913 > DS14C238WM/NOPB (National Semiconductor)IC DVR/RCVR SINGLE SUPP 24-SOIC PDF资料下载
参数资料
| 型号： | DS14C238WM/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 9/13页 |
| 文件大小： | 0K |
| 描述： | IC DVR/RCVR SINGLE SUPP 24-SOIC |
| 标准包装： | 30 |
| 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： | 管件 |
| 其它名称： | *DS14C238WM *DS14C238WM/NOPB DS14C238WM |
SNLS084C – MAY 1999 – REVISED APRIL 2013
Switching Characteristics
(1)
Over recommended operating conditions, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ(2)
Max
Units
DRIVER CHARACTERISTICS
tPLH
Propagation Delay LOW to HIGH
RL = 3 kΩ
0.7
4.0
μs
tPHL
Propagation Delay HIGH to LOW
CL = 50 pF
0.6
4.0
μs
tsk
Skew |tPLH–tPHL |
0.1
1.0
μs
SR1
Output Slew Rate
RL = 3kΩ to 7 kΩ, CL = 50 pF
4.0
15
30
V/
μs
SR2
Output Slew Rate
RL = 3 kΩ, CL = 2500 pF
3.0
5.0
V/
μs
RECEIVER CHARACTERISTICS
tPLH
Propagation Delay LOW to HIGH
Input Pulse Width > 10
μs
2.0
6.5
μs
tPHL
Propagation Delay HIGH to LOW
CL = 50 pF
2.8
6.5
μs
tSK
Skew | tPLH–tPHL |
0.8
2.0
μs
tNW
Noise Pulse Width Rejected
2.5
1.0
μs
(1)
Receiver AC input waveform for test purposes: tr = tf = 200 ns, VIH = 3V, VIL = 3V, f = 64 kHz (128 kbits/sec). Driver AC input
waveform for test purposes: tr = tf ≤ 10 ns, VIH = 3V, VIL = 0V, f = 64 kHz (128 kbits/sec).
(2)
All typicals are given for VCC = 5.0V and TA = +25°C.
Parameter Measurement Information
Figure 2. Driver Load Circuit
Figure 3. Driver Switching Waveform
Figure 4. Receiver Load Circuit
Copyright 1999–2013, Texas Instruments Incorporated
5
Product Folder Links: DS14C238
相关PDF资料 |
PDF描述 |
|---|---|
| DS1666-50+ | IC DIG POT 50K 14-DIP |
| DS1669-100+ | IC RHEOSTAT DALLASTAT 100K 8-DIP |
| DS1801E-014/T&R | IC POT DUAL AUDIO TAPER 14-TSSOP |
| DS1802E/T&R | IC POT DL AUDIO TAP W/PB 20TSSOP |
| DS1803E-10/T&R | IC POT DUAL ADDRESS 10K 14-TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS14C238WMX | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| DS14C238WMX/NOPB | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| DS14C239 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Dual Supply TIA/EIA-232 3 x 5 Driver/Receiver |
| DS14C239N | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| DS14C239TN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
发布紧急采购，3分钟左右您将得到回复。