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參數(shù)資料
| 型號(hào)： | DS14C238WM/NOPB |
| 廠商： | National Semiconductor |
| 文件頁(yè)數(shù)： | 10/13頁(yè) |
| 文件大小： | 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 |
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SNLS084C – MAY 1999 – REVISED APRIL 2013
Figure 5. Receiver Propagation Delays and Noise Rejection
PIN DESCRIPTIONS
VCC (pin 9)— Power supply pin for the device,
+5V (±10%).
V+ (pin 11)—Positive supply for TIA/EIA-232-E drivers. Recommended external capacitor: C4 = 1.0
μF (6.3V). This supply is not intended
to be loaded externally.
V
(pin 15)—Negative supply for TIA/EIA-232-E drivers. Recommended external capacitor: C3 = 1.0 μF (16V). This supply is not intended
to be loaded externally.
C1+, C1
(pins 10 and 12)— External capacitor connection pins. Recommended capacitor – 1.0 μF (6.3V).
C2+, C2
(pins 13 and 14)— External Capacitor connection pins. Recommended capacitor – 1.0 μF (16V).
DIN 1–4 (pins 5, 18, 19, and 21)— Driver input pins are TTL/CMOS compatible. Inputs of unused drivers may be left open, an internal pull-
up resistor (500 k
Ω minimum, typically 5 MΩ) pulls input to VCC. Output will be LOW for open inputs.
DOUT 1–4 (pins 2, 1, 24, and 20)— Driver output pins conform to TIA/EIA-232-E levels.
RIN1 1–4 (pins 3, 7, 23, and 16)— Receiver input pins accept TIA/EIA-232-E input voltages (±15V). Receivers feature a noise filter and
specified hysteresis of 200 mV. Unused receiver input pins may be left open. Internal input resistor (5 k
Ω) pulls input LOW, providing a
failsafe HIGH output.
ROUT 1–4 (pins 4, 6, 22, and 17)— Receiver output pins are TTL/CMOS compatible. Receiver output HIGH voltage is specified for both
CMOS and TTL load conditions.
GND (pin 8)—Ground Pin.
6
Copyright 1999–2013, Texas Instruments Incorporated
Product Folder Links: DS14C238
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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: |
| DS14C238WMX/NOPB | 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: |
| DS14C239 | 制造商:NSC 制造商全稱: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 |
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