поискавой системы для электроныых деталей |
|
SN74LV123APWRE4 датащи(PDF) 1 Page - Texas Instruments |
|
SN74LV123APWRE4 датащи(HTML) 1 Page - Texas Instruments |
1 / 27 page SN54LV123A, SN74LV123A DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS SCLS393O − APRIL 1998 − REVISED OCTOBER 2005 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D 2-V to 5.5-V V CC Operation D Max t pd of 11 ns at 5 V D Typical V OLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C D Typical V OHV (Output VOH Undershoot) >2.3 V at VCC = 3.3 V, TA = 25°C D Support Mixed-Mode Voltage Operation on All Ports D Schmitt-Trigger Circuitry on A, B, and CLR Inputs for Slow Input Transition Rates D Edge Triggered From Active-High or Active-Low Gated Logic Inputs D I off Supports Partial-Power-Down Mode Operation D Retriggerable for Very Long Output Pulses, up to 100% Duty Cycle D Overriding Clear Terminates Output Pulse D Glitch-Free Power-Up Reset on Outputs D Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II D ESD Protection Exceeds JESD 22 − 2000-V Human-Body Model (A114-A) − 200-V Machine Model (A115-A) − 1000-V Charged-Device Model (C101) SN54LV123A ...J OR W PACKAGE SN74LV123A . . . D, DB, DGV, NS, OR PW PACKAGE (TOP VIEW) SN54LV123A . . . FK PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1A 1B 1CLR 1Q 2Q 2Cext 2Rext/Cext GND VCC 1Rext/Cext 1Cext 1Q 2Q 2CLR 2B 2A 32 1 20 19 910 11 1213 4 5 6 7 8 18 17 16 15 14 1Cext 1Q NC 2Q 2CLR 1CLR 1Q NC 2Q 2Cext NC − No internal connection SN74LV123A . . . RGY PACKAGE (TOP VIEW) 116 89 2 3 4 5 6 7 15 14 13 12 11 10 1Rext/Cext 1Cext 1Q 2Q 2CLR 2B 1B 1CLR 1Q 2Q 2Cext 2Rext/Cext description/ordering information The ’LV123A devices are dual retriggerable monostable multivibrators designed for 2-V to 5.5-V VCC operation. These edge-triggered multivibrators feature 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 output pulse duration is programmable 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. The output pulse duration also can be reduced by taking CLR low. Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input pulse. The A, B, and CLR inputs have Schmitt triggers with sufficient hysteresis to handle slow input transition rates with jitter-free triggering at the outputs. 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 input/output timing diagram illustrates pulse control by retriggering the inputs and early clearing. Copyright © 2005, Texas Instruments Incorporated Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Аналогичный номер детали - SN74LV123APWRE4 |
|
Аналогичное описание - SN74LV123APWRE4 |
|
|
ссылки URL |
Конфиденциальность |
ALLDATASHEETRU.COM |
Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |