74HC540; 74HCT540
Octal buffer/line driver; 3-state; inverting
The 74HC540; 74HCT540 is an 8-bit inverting buffer/line driver with 3-state outputs. The device features two output enables (OE1 and OE2). A HIGH on OEn causes the outputs to assume a high-impedance OFF-state. 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
Inverting outputs
Input levels:
For 74HC540: CMOS level
For 74HCT540: TTL level
Complies with JEDEC standards
JESD8C (2.7 V to 3.6 V)
JESD7A (2.0 V to 6.0 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(shù)類型
| 型號 | VCC (V) | Logic switching levels | Output drive capability (mA) | fmax (MHz) | Nr of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HC540D | 2.0?-?6.0 | CMOS | ± 7.8 | 36 | 8 | low | -40~125 | 70 | 12.3 | 46 | SO20 |
| 74HC540PW | 2.0?-?6.0 | CMOS | ± 7.8 | 36 | 8 | low | -40~125 | 112 | 1.8 | 39.4 | TSSOP20 |
| 74HCT540D | 4.5?-?5.5 | TTL | ± 6 | 36 | 8 | low | -40~125 | 70 | 12.3 | 46 | SO20 |
| 74HCT540PW | 4.5?-?5.5 | TTL | ± 6 | 36 | 8 | low | -40~125 | 70 | 1.8 | 46 | TSSOP20 |
封裝
| 型號 | 可訂購的器件編號，（訂購碼(12NC)） | 狀態(tài) | 標示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
|---|---|---|---|---|---|---|---|
| 74HC540D | 74HC540D,653 (933715490653) |
Active | 74HC540D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
暫無信息 |
| 74HC540PW | 74HC540PWJ (935691219118) |
Active | 74HC540 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT360-1_118 |
| 74HCT540D | 74HCT540D,653 (933715600653) |
Active | 74HCT540D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
暫無信息 |
| 74HCT540PW | 74HCT540PWJ (935691211118) |
Active | 4HCT540 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT360-1_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) | 標示 | 封裝 | 外形圖 | 回流焊/波峰焊 | 包裝 |
|---|---|---|---|---|---|---|---|
| 74HC540D | 74HC540D,652 (933715490652) |
Withdrawn / End-of-life | 74HC540D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
暫無信息 |
| 74HC540DB | 74HC540DB,112 (935190130112) |
Withdrawn / End-of-life |
SSOP20 (SOT339-1) |
SOT339-1 |
SSOP-TSSOP-VSO-WAVE
|
暫無信息 | |
| 74HC540DB,118 (935190130118) |
Withdrawn / End-of-life | SOT339-1_118 | |||||
| 74HCT540D | 74HCT540D,652 (933715600652) |
Withdrawn / End-of-life | 74HCT540D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
暫無信息 |
| 74HCT540DB | 74HCT540DB,112 (935190120112) |
Obsolete | no package information | ||||
| 74HCT540DB,118 (935190120118) |
Obsolete | ||||||
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 |
|---|---|---|---|---|
| 74HC540D | 74HC540D,653 | 74HC540D |
|
|
| 74HC540PW | 74HC540PWJ | 74HC540PW |
|
|
| 74HCT540D | 74HCT540D,653 | 74HCT540D |
|
|
| 74HCT540PW | 74HCT540PWJ | 74HCT540PW |
|
|
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 |
|---|---|---|---|---|
| 74HC540D | 74HC540D,652 | 74HC540D |
|
|
| 74HC540DB | 74HC540DB,112 | 74HC540DB |
|
|
| 74HC540DB | 74HC540DB,118 | 74HC540DB |
|
|
| 74HCT540D | 74HCT540D,652 | 74HCT540D |
|
|
| 74HCT540DB | 74HCT540DB,112 | 74HCT540DB |
|
|
| 74HCT540DB | 74HCT540DB,118 | 74HCT540DB |
|
|
文檔 (13)
| 文件名稱 | 標題 | 類型 | 日期 |
|---|---|---|---|
| 74HC_HCT540 | Octal buffer/line driver; 3-state; inverting | Data sheet | 2024-08-05 |
| AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
| AN90063 | Questions about package outline drawings | Application note | 2025-10-22 |
| 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 |
| 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 |
| 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 |
| 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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