74LV123
Dual retriggerable monostable multivibrator with reset
The 74LV123 is a dual retriggerable monostable multivibrator with reset. The basic output pulse width is programmed by selection of external components (REXT and CEXT). Once triggered this basic pulse width may be extended by retriggering either of the edge triggered inputs (nA or (nB). By repeating this process, the output pulse period (nQ = HIGH, nQ = LOW) can be made as long as desired. Alternatively, an output delay can be terminated at any time by a LOW-going edge on input nRD. Control inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess VCC. Schmitt-trigger action at nA and nB inputs makes the circuit tolerant of slower input rise and fall times.
Features and benefits
Wide supply voltage range from 1.0 V to 5.5 V
CMOS low power dissipation
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
Optimized for low-voltage applications: 1.0 V to 3.6 V
Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V
Typical output ground bounce: < 0.8 V at VCC = 3.3 V and Tamb = 25 °C
Typical HIGH-level output voltage (VOH) undershoot: > 2 V at VCC = 3.3 V and Tamb = 25 °C
DC triggered from active HIGH or active LOW inputs
Retriggerable for very long pulses up to 100 % duty factor
Direct reset terminates output pulses
Schmitt-trigger action on all inputs except for the reset input
Complies with JEDEC standards:
- JESD8-7 (1.65 V to 1.95 V)
- JESD8-5 (2.3 V to 2.7 V)
- JESD8C (2.7 V to 3.6 V)
- JESD36 (4.5 V to 5.5 V)
ESD protection:
HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
參數類型
| 型號 | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|
| 74LV123BQ | 1.0?-?5.5 | TTL | ± 12 | 20 | low | -40~125 | 86 | 9 | 54 | DHVQFN16 |
| 74LV123D | 1.0?-?5.5 | TTL | ± 12 | 20 | low | -40~125 | 84 | 6.1 | 43.3 | SO16 |
| 74LV123D-Q100 | 1.0??-??5.5 | TTL | ?± 12 | 20 | low | -40~125 | 84 | 6.1 | 43.3 | SO16 |
| 74LV123PW | 1.0?-?5.5 | TTL | ± 12 | 20 | low | -40~125 | 118 | 3 | 47.1 | TSSOP16 |
| 74LV123PW-Q100 | 1.0??-??5.5 | TTL | ?± 12 | 20 | low | -40~125 | 118 | 3 | 47.1 | TSSOP16 |
封裝
| 型號 | 可訂購的器件編號，（訂購碼(12NC)） | 狀態 | 標示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
|---|---|---|---|---|---|---|---|
| 74LV123BQ | 74LV123BQ,115 (935284317115) |
Active | LV123 |
DHVQFN16 (SOT763-1) |
SOT763-1 | SOT763-1_115 | |
| 74LV123D | 74LV123D,118 (935210250118) |
Active | 74LV123D |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
SOT109-1_118 |
| 74LV123D-Q100 | 74LV123D-Q100J (935691587118) |
Active | 74LV123D |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
SOT109-1_118 |
| 74LV123PW | 74LV123PW,118 (935210280118) |
Active | LV123 |
TSSOP16 (SOT403-1) |
SOT403-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT403-1_118 |
| 74LV123PW-Q100 | 74LV123PW-Q100J (935691594118) |
Active | LV123 |
TSSOP16 (SOT403-1) |
SOT403-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT403-1_118 |
下表中的所有產品型號均已停產 。
| 型號 | 可訂購的器件編號，（訂購碼(12NC)） | 狀態 | 標示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
|---|---|---|---|---|---|---|---|
| 74LV123D | 74LV123D,112 (935210250112) |
Withdrawn / End-of-life | 74LV123D |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
SOT109-1_112 |
| 74LV123DB | 74LV123DB,112 (935210260112) |
Obsolete |
SSOP16 (SOT338-1) |
SOT338-1 |
SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE |
暫無信息 | |
| 74LV123DB,118 (935210260118) |
Obsolete | 暫無信息 | |||||
| 74LV123PW | 74LV123PW,112 (935210280112) |
Withdrawn / End-of-life | LV123 |
TSSOP16 (SOT403-1) |
SOT403-1 |
SSOP-TSSOP-VSO-WAVE
|
暫無信息 |
環境信息
| 型號 | 可訂購的器件編號 | 化學成分 | RoHS | RHF指示符 |
|---|---|---|---|---|
| 74LV123BQ | 74LV123BQ,115 | 74LV123BQ |
|
|
| 74LV123D | 74LV123D,118 | 74LV123D |
|
|
| 74LV123D-Q100 | 74LV123D-Q100J | 74LV123D-Q100 |
|
|
| 74LV123PW | 74LV123PW,118 | 74LV123PW |
|
|
| 74LV123PW-Q100 | 74LV123PW-Q100J | 74LV123PW-Q100 |
|
|
下表中的所有產品型號均已停產 。
| 型號 | 可訂購的器件編號 | 化學成分 | RoHS | RHF指示符 |
|---|---|---|---|---|
| 74LV123D | 74LV123D,112 | 74LV123D |
|
|
| 74LV123DB | 74LV123DB,112 | 74LV123DB |
|
|
| 74LV123DB | 74LV123DB,118 | 74LV123DB |
|
|
| 74LV123PW | 74LV123PW,112 | 74LV123PW |
|
|
文檔 (22)
| 文件名稱 | 標題 | 類型 | 日期 |
|---|---|---|---|
| 74LV123 | Dual retriggerable monostable multivibrator with reset | Data sheet | 2024-01-15 |
| AN90063 | Questions about package outline drawings | Application note | 2025-06-13 |
| 001aae524 | Block diagram: 74LV123BQ, 74LV123D, 74LV123DB, 74LV123N, 74LV123PW | Block diagram | 2009-11-04 |
| sv00098 | Block diagram: 74LV123BQ, 74LV123D, 74LV123DB, 74LV123N, 74LV123PW | Block diagram | 2009-11-03 |
| SOT763-1 | 3D model for products with SOT763-1 package | Design support | 2019-10-03 |
| SOT109-1 | 3D model for products with SOT109-1 package | Design support | 2020-01-22 |
| SOT403-1 | 3D model for products with SOT403-1 package | Design support | 2020-01-22 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| DHVQFN16_SOT763-1_mk | plastic, dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 0.85 mm body | Marcom graphics | 2017-01-28 |
| SO16_SOT109-1_mk | plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm body | Marcom graphics | 2017-01-28 |
| SSOP16_SOT338-1_mk | plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body | Marcom graphics | 2017-01-28 |
| TSSOP16_SOT403-1_mk | plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body | Marcom graphics | 2017-01-28 |
| SOT763-1 | plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm body | Package information | 2023-05-11 |
| SOT109-1 | plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body | Package information | 2023-11-07 |
| SOT338-1 | plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body | Package information | 2022-06-20 |
| SOT403-1 | plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm body | Package information | 2023-11-08 |
| SO-SOJ-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
| SSOP-TSSOP-VSO-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
| lv | lv Spice model | SPICE model | 2013-05-07 |
| SO-SOJ-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
| WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |
| SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
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