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HD74LV2G123AUSE 4C2 的参数 |
| 逻辑类型
Logic Type |
单稳态 Monostable |
| 独立电路
Independent Circuits |
1 |
| 施密特触发器输入
Schmitt Trigger Input |
无 No |
| 传播延迟
Propagation Delay |
22.5ns |
| 输出高，低电流
Current - Output High, Low |
12mA,12mA |
| 电源电压
Voltage - Supply |
1.65 V ~ 5.5 V |
| Description & Applications |
Retriggerable Monostable Multivibrator Description The HD74LV2G123A features output pulse duration control by three methods. In the first method, the A input is low and the B input goes high. In the second method, the B input is high and the A input goes low. In the third method, the A input is low, the B input is high, and the clear (CLR) input goes high. The basic pulse duration is programmed by selecting external resistance and capacitance values. The external timing capacitor must be connected between Cext and Rext/Cext (positive) and an external resistor connected between Rext/Cext and VCC. To obtain variable pulse durations, connect an external variable resistance between Rext/Cext and VCC. Once triggered, the basic pulse duration can be extended by retriggering the gated low-level active (A) or high-level active (B) input. Pulse duration can be reduced by taking CLR low. The output pulse equation is simply : tWQ = Cext ? Rext. Low voltage and high-speed operation is suitable for the battery powered products (e.g., notebook computers), and the low power consumption extends the battery life. Features ? The basic gate function is lined up as Renesas uni logic series. ? Supplied on emboss taping for high-speed automatic mounting. ? Electrical characteristics equivalent to the HD74LV123A Supply voltage range : 1.65 to 5.5 V Operating temperature range : –40 to +85°C ? All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V) All outputs VO (Max.) = 5.5 V (@VCC = 0 V) ? Output current ±6 mA (@VCC = 3.0 V to 3.6 V), ±12 mA (@VCC = 4.5 V to 5.5 V) ? All the logical input has hysteresis voltage for the slow transition. ? Ordering Information |
| 描述与应用 |
可重触发单稳多谐振荡器 描述 的HD74LV2G123A功能输出脉冲的持续时间控制方法有三种。在第一种方法中，甲 投入低，B输入变高。在第二种方法中的B输入端是高的A输入端变为低电平。 在第三个方法，A输入低，B输入高，并且明确（CLR）输入变高。的基本 脉冲持续时间是由编程选择外部的电阻和电容值。外部定时 CEXT和REXT/ CEXT（正）和连接一个外部电阻，电容必须连接 REXT/ CEXT和VCC之间。要获得可变的脉冲持续时间，连接外部可变电阻 REXT/ CEXT和VCC之间。一旦触发，基本的脉冲持续时间，可以延长再触发 门控低电平有效（A）或高层次的活性（B）输入。脉冲持续时间可以减少服用CLR 低。输出脉冲方程式很简单：TWQ= CEXT?REXT。 低电压和高速运转是适用于由电池供电的产品（例如，笔记本 电脑），和低功率消耗，延长电池的寿命。 ?基本的门功能一字排开，作为瑞萨单向逻辑系列。 ?提供浮雕高速自动安装录音。 电气特性相当于HD74LV123A 电源电压范围：1.65至5.5 V 工作温度范围：-40至+85°C ?所有输入VIH（最大）=5.5 V（VCC= 0 V至5.5 V） 所有输出VO（最大）=5.5 V（VCC=0 V） ?输出电流±6毫安（VCC= 3.0 V到3.6 V），±12毫安（VCC= 4.5 V至5.5 V） ?所有逻辑输入有滞后电压的缓慢过渡。 ?订购信息 |
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相关型号列表 |
| 型号 |
标记/丝印/代码 |
厂家 |
批号 |
封装 |
数量 |
描述 |
详细资料 |
| HD74LV2G123AUSE |
5V3 |
HITACHI |
04+NOPB1950 |
SSOP-8 |
23000 |
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L25 |
HITACHI |
06+NOPB |
SSOP-8 |
1809 |
集成电路ICIntegrated Circuit（IC）-逻辑电路Logic circuit-缓存与线路驱动器Buffer/Line Driver |
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L14 |
HITACHI |
04+ROHS |
SSOP8 |
4850 |
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| HD74LV2G125AUSE |
L25 |
HITACHI |
02+rohs |
SSOP-8 |
0 |
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| HD74LV2G123AUSE |
4C2 |
HITACHI |
04nopb |
SSOP-8 |
0 |
集成电路ICIntegrated Circuit（IC）-逻辑电路Logic circuit-多谐振荡器Multivibrator |
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| HD74LV2G157AUSE |
L57 |
RENESAS |
06+NOPB |
SSOP-8 |
100 |
集成电路ICIntegrated Circuit（IC）-逻辑电路Logic circuit-解码器、多路复用器、信号开关Signal Switch, Multiplexer, Decoder |
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