74HC7540; 74HCT7540
Octal Schmitt trigger buffer/line driver; 3-state; inverting
The 74HC7540; 74HCT7540 is an 8-bit inverting buffer/line driver with Schmitt-trigger inputs and 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. Schmitt trigger inputs transform slowly changing input signals into sharply defined jitter-free output signals.
Features and benefits
Wide supply voltage range from 2.0 V to 6.0 V
CMOS low power dissipation
High noise immunity
Unlimited input rise and fall times
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
Inverting outputs
Input levels:
For 74HC7540: CMOS level
For 74HCT7540: 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
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HC7540D | 2.0?-?6.0 | CMOS | ± 7.8 | 36 | 8 | low | -40~125 | 69 | 11 | 45 | SO20 |
| 74HC7540PW | 2.0?-?6.0 | CMOS | ± 7.8 | 36 | 8 | low | -40~125 | 100 | 1.6 | 45 | TSSOP20 |
| 74HCT7540D | 4.5?-?5.5 | TTL | ± 6 | 36 | 8 | low | -40~125 | 69 | 11 | 45 | SO20 |
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 |
|---|---|---|---|---|---|---|---|
| 74HC7540D | 74HC7540D,118 (933967860118) |
Active | 74HC7540D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
SOT163-1_118 |
| 74HC7540PW | 74HC7540PWJ (935691207118) |
Active | 4HC7540 |
TSSOP20 (SOT360-1) |
SOT360-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT360-1_118 |
| 74HCT7540D | 74HCT7540D,118 (933967900118) |
Active | 74HCT7540D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
SOT163-1_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 |
|---|---|---|---|---|---|---|---|
| 74HC7540D | 74HC7540D,112 (933967860112) |
Withdrawn / End-of-life | 74HC7540D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
暫無信息 |
| 74HC7540DB | 74HC7540DB,112 (935190290112) |
Obsolete | no package information | ||||
| 74HC7540DB,118 (935190290118) |
Obsolete | ||||||
| 74HCT7540D | 74HCT7540D,112 (933967900112) |
Withdrawn / End-of-life | 74HCT7540D |
SO20 (SOT163-1) |
SOT163-1 |
WAVE_BG-BD-1
|
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 |
|---|---|---|---|---|
| 74HC7540D | 74HC7540D,118 | 74HC7540D |
|
|
| 74HC7540PW | 74HC7540PWJ | 74HC7540PW |
|
|
| 74HCT7540D | 74HCT7540D,118 | 74HCT7540D |
|
|
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 |
|---|---|---|---|---|
| 74HC7540D | 74HC7540D,112 | 74HC7540D |
|
|
| 74HC7540DB | 74HC7540DB,112 | 74HC7540DB |
|
|
| 74HC7540DB | 74HC7540DB,118 | 74HC7540DB |
|
|
| 74HCT7540D | 74HCT7540D,112 | 74HCT7540D |
|
|
文檔 (10)
| 文件名稱 | 標(biāo)題 | 類型 | 日期 |
|---|---|---|---|
| 74HC_HCT7540 | Octal Schmitt trigger buffer/line driver; 3-state; inverting | Data sheet | 2024-08-05 |
| 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 |
| 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 |
| 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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