74HC123; 74HCT123
Dual retriggerable monostable multivibrator with reset
The 74HC123; 74HCT123 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. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Schmitt-trigger action in the nA and nB inputs, makes the circuit highly tolerant to slower input rise and fall times.
Features and benefits
Wide supply voltage range from 2.0 V to 6.0 V
CMOS low power dissipation
High noise immunity
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
Complies with JEDEC standards:
- JESD8C (2.7 V to 3.6 V)
- JESD7A (2.0 V to 6.0 V)
Input levels:
For 74HC123: CMOS level
For 74HCT123: TTL level
DC triggered from active HIGH or active LOW inputs
Retriggerable for very long pulses up to 100 % duty factor
Direct reset terminates output pulse
Schmitt-trigger action on all inputs except for the reset input
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(shù)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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HC123BQ | 2.0?-?6.0 | CMOS | ± 7.8 | 9.0 | low | -40~125 | 90 | 11.8 | 59 | DHVQFN16 |
| 74HC123D | 2.0?-?6.0 | CMOS | ± 5.2 | 26 | low | -40~125 | 90 | 8.3 | 49 | SO16 |
| 74HC123PW | 2.0?-?6.0 | CMOS | ± 5.2 | 26 | low | -40~125 | 122 | 3.9 | 51.5 | TSSOP16 |
| 74HCT123D | 4.5?-?5.5 | TTL | ± 4 | 26 | low | -40~125 | 90 | 8.3 | 49 | SO16 |
| 74HCT123PW | 4.5?-?5.5 | TTL | ± 4 | 26 | low | -40~125 | 122 | 3.9 | 51.5 | TSSOP16 |
封裝
| 型號 | 可訂購的器件編號，（訂購碼(12NC)） | 狀態(tài) | 標(biāo)示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
|---|---|---|---|---|---|---|---|
| 74HC123BQ | 74HC123BQ,115 (935282453115) |
Active | HC123 |
DHVQFN16 (SOT763-1) |
SOT763-1 | SOT763-1_115 | |
| 74HC123D | 74HC123D,653 (933713960653) |
Active | 74HC123D |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
暫無信息 |
| 74HC123PW | 74HC123PW,118 (935186860118) |
Active | HC123 |
TSSOP16 (SOT403-1) |
SOT403-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT403-1_118 |
| 74HCT123D | 74HCT123D,653 (933713970653) |
Active | 74HCT123D |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
暫無信息 |
| 74HCT123PW | 74HCT123PW,118 (935186850118) |
Active | HCT123 |
TSSOP16 (SOT403-1) |
SOT403-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT403-1_118 |
下表中的所有產(chǎn)品型號均已停產(chǎn) 。
| 型號 | 可訂購的器件編號，（訂購碼(12NC)） | 狀態(tài) | 標(biāo)示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
|---|---|---|---|---|---|---|---|
| 74HC123D | 74HC123D,652 (933713960652) |
Withdrawn / End-of-life | 74HC123D |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
SOT109-1_652 |
| 74HC123DB | 74HC123DB,112 (935190330112) |
Obsolete | HC123 | no package information | |||
| 74HC123DB,118 (935190330118) |
Obsolete | HC123 | |||||
| 74HC123PW | 74HC123PW,112 (935186860112) |
Withdrawn / End-of-life | HC123 |
TSSOP16 (SOT403-1) |
SOT403-1 |
SSOP-TSSOP-VSO-WAVE
|
暫無信息 |
| 74HCT123DB | 74HCT123DB,112 (935186840112) |
Obsolete |
SSOP16 (SOT338-1) |
SOT338-1 |
SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE |
暫無信息 | |
| 74HCT123DB,118 (935186840118) |
Obsolete | 暫無信息 | |||||
環(huán)境信息
| 型號 | 可訂購的器件編號 | 化學(xué)成分 | RoHS | RHF指示符 |
|---|---|---|---|---|
| 74HC123BQ | 74HC123BQ,115 | 74HC123BQ |
|
|
| 74HC123D | 74HC123D,653 | 74HC123D |
|
|
| 74HC123PW | 74HC123PW,118 | 74HC123PW |
|
|
| 74HCT123D | 74HCT123D,653 | 74HCT123D |
|
|
| 74HCT123PW | 74HCT123PW,118 | 74HCT123PW |
|
|
下表中的所有產(chǎn)品型號均已停產(chǎn) 。
| 型號 | 可訂購的器件編號 | 化學(xué)成分 | RoHS | RHF指示符 |
|---|---|---|---|---|
| 74HC123D | 74HC123D,652 | 74HC123D |
|
|
| 74HC123DB | 74HC123DB,112 | 74HC123DB |
|
|
| 74HC123DB | 74HC123DB,118 | 74HC123DB |
|
|
| 74HC123PW | 74HC123PW,112 | 74HC123PW |
|
|
| 74HCT123DB | 74HCT123DB,112 | 74HCT123DB |
|
|
| 74HCT123DB | 74HCT123DB,118 | 74HCT123DB |
|
|
文檔 (23)
| 文件名稱 | 標(biāo)題 | 類型 | 日期 |
|---|---|---|---|
| 74HC_HCT123 | Dual retriggerable monostable multivibrator with reset | Data sheet | 2024-02-21 |
| AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
| AN90063 | Questions about package outline drawings | Application note | 2025-10-22 |
| mna518 | Block diagram: 74HC123BQ, 74HC123D, 74HC123DB, 74HC123N, 74HC123PW, 74HCT123D, 74HCT123DB, 74HCT123N, 74HCT123PW | Block diagram | 2009-11-04 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| hc | HC/HCT Spice model | SPICE model | 2022-02-17 |
| HCT_USER_GUIDE | HC/T User Guide | User manual | 1997-10-31 |
| 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 |
支持
如果您需要設(shè)計/技術(shù)支持，請告知我們并填寫 應(yīng)答表 我們會盡快回復(fù)您。
模型
| 文件名稱 | 標(biāo)題 | 類型 | 日期 |
|---|---|---|---|
| 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 |
| hc | HC/HCT Spice model | SPICE model | 2022-02-17 |
Ordering, pricing & availability
樣品
作為 Nexperia 的客戶，您可以通過我們的銷售機構(gòu)訂購樣品。
如果您沒有 Nexperia 的直接賬戶，我們的全球和地區(qū)分銷商網(wǎng)絡(luò)可為您提供 Nexperia 樣品支持。查看官方經(jīng)銷商列表。