74HC373; 74HCT373
Octal D-type transparent latch; 3-state
The 74HC373; 74HCT373 is an octal D-type transparent latch with 3-state outputs. The device features latch enable (LE) and output enable (OE) inputs. When LE is HIGH, data at the inputs enter the latches. In this condition the latches are transparent, a latch output will change each time its corresponding D-input changes. When LE is LOW the latches store the information that was present at the inputs a set-up time preceding the HIGH-to-LOW transition of LE. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Operation of the OE input does not affect the state of the latches. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
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 74HC373: CMOS level
For 74HCT373: TTL level
3-state non-inverting outputs for bus oriented applications
Common 3-state output enable 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HC373BQ | 2.0?-?6.0 | CMOS | ± 7.8 | 12 | low | -40~125 | 78 | 9.1 | 50 | DHVQFN20 |
| 74HC373D | 2.0?-?6.0 | CMOS | ± 7.8 | 12 | low | -40~125 | 85 | 27.3 | 61 | SO20 |
| 74HC373PW | 2.0?-?6.0 | CMOS | ± 7.8 | 12 | low | -40~125 | 100 | 4.6 | 44.7 | TSSOP20 |
| 74HCT373BQ | 4.5?-?5.5 | TTL | ± 6 | 14 | low | -40~125 | 78 | 9.1 | 50 | DHVQFN20 |
| 74HCT373D | 4.5?-?5.5 | TTL | ± 6 | 14 | low | -40~125 | 85 | 27.3 | 61 | SO20 |
| 74HCT373PW | 4.5?-?5.5 | TTL | ± 6 | 14 | low | -40~125 | 100 | 4.6 | 44.7 | TSSOP20 |
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 |
|---|---|---|---|---|---|---|---|
| 74HC373BQ | 74HC373BQ,115 (935274585115) |
Active | HC373BQ |
DHVQFN20 (SOT764-1) |
SOT764-1 | SOT764-1_115 | |
| 74HC373D | 74HC373D,653 (933715470653) |
Active | 74HC373D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
暫無信息 |
| 74HC373PW | 74HC373PW,118 (935165240118) |
Active | HC373 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT360-1_118 |
| 74HCT373BQ | 74HCT373BQ,115 (935274584115) |
Active | HCT373BQ |
DHVQFN20 (SOT764-1) |
SOT764-1 | SOT764-1_115 | |
| 74HCT373D | 74HCT373D,653 (933715580653) |
Active | 74HCT373D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
暫無信息 |
| 74HCT373PW | 74HCT373PW,118 (935174830118) |
Active | HCT373 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT360-1_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 |
|---|---|---|---|---|---|---|---|
| 74HC373DB | 74HC373DB,112 (935174840112) |
Withdrawn / End-of-life |
SSOP20 (SOT339-1) |
SOT339-1 |
SSOP-TSSOP-VSO-WAVE
|
暫無信息 | |
| 74HC373DB,118 (935174840118) |
Withdrawn / End-of-life | SOT339-1_118 | |||||
| 74HCT373DB | 74HCT373DB,112 (935174850112) |
Obsolete | no package information | ||||
| 74HCT373DB,118 (935174850118) |
Obsolete | ||||||
| 74HCT373PW | 74HCT373PW,112 (935174830112) |
Withdrawn / End-of-life | HCT373 |
TSSOP20 (SOT360-1) |
SOT360-1 |
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 |
|---|---|---|---|---|
| 74HC373BQ | 74HC373BQ,115 | 74HC373BQ |
|
|
| 74HC373D | 74HC373D,653 | 74HC373D |
|
|
| 74HC373PW | 74HC373PW,118 | 74HC373PW |
|
|
| 74HCT373BQ | 74HCT373BQ,115 | 74HCT373BQ |
|
|
| 74HCT373D | 74HCT373D,653 | 74HCT373D |
|
|
| 74HCT373PW | 74HCT373PW,118 | 74HCT373PW |
|
|
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 |
|---|---|---|---|---|
| 74HC373DB | 74HC373DB,112 | 74HC373DB |
|
|
| 74HC373DB | 74HC373DB,118 | 74HC373DB |
|
|
| 74HCT373DB | 74HCT373DB,112 | 74HCT373DB |
|
|
| 74HCT373DB | 74HCT373DB,118 | 74HCT373DB |
|
|
| 74HCT373PW | 74HCT373PW,112 | 74HCT373PW |
|
|
文檔 (17)
| 文件名稱 | 標題 | 類型 | 日期 |
|---|---|---|---|
| 74HC_HCT373 | Octal D-type transparent latch; 3-state | Data sheet | 2024-08-05 |
| AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
| AN90063 | Questions about package outline drawings | Application note | 2025-06-13 |
| SOT764-1 | 3D model for products with SOT764-1 package | Design support | 2019-10-03 |
| SOT163-1 | 3D model for products with SOT163-1 package | Design support | 2020-01-22 |
| SOT360-1 | 3D model for products with SOT360-1 package | Design support | 2020-01-22 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| DHVQFN20_SOT764-1_mk | plastic, dual in-line compatible thermal enhanced very thin quad flat package; 20 terminals; 0.5 mm pitch; 2.5 mm x 4.5 mm x 0.85 mm body | Marcom graphics | 2017-01-28 |
| TSSOP20_SOT360-1_mk | plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm body | Marcom graphics | 2017-01-28 |
| SOT764-1 | plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 20 terminals; 0.5 mm pitch; 4.5 mm x 2.5 mm x 1 mm body | Package information | 2022-06-21 |
| SOT163-1 | plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm body | Package information | 2024-11-15 |
| SOT339-1 | plastic, shrink small outline package; 20 leads; 0.65 mm pitch; 7.2 mm x 5.3 mm x 2 mm body | Package information | 2020-04-21 |
| SOT360-1 | plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.2 mm body | Package information | 2024-11-15 |
| hc | HC/HCT Spice model | SPICE model | 2022-02-17 |
| HCT_USER_GUIDE | HC/T User Guide | User manual | 1997-10-31 |
| 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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