Bus Transceivers | MC74VHC245

OCTAL バス・トランシーバ

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Overview

MC74VHC245 は、先進の高速 CMOS オクタル・バス・トランシーバであり、シリコンゲート CMOS 技術で製造されています。CMOS の低電力消費を維持したまま、同等のバイポーラ・ショットキー TTL と同じ高速動作を実現します。データ・バス間の双方向の非同期通信を目的としています。データ伝送の方向は、DIR 入力のレベルによって決まります。出力イネーブル・ピン (OE) を使用してデバイスを無効にできるため、バスが効果的に分離されます。すべての入力には、静電気放電に対する保護回路が装備されています。

  • High Speed: tPD = 4.0ns (Typ) at VCC = 5V
  • Low Power Dissipation: ICC = 4µA (Max) at TA = 25 C
  • High Noise Immunity: VNIH = VNIL = 28% VCC
  • Power Down Protection Provided on Inputs
  • Balanced Propagation Delays
  • Designed for 2V to 5.5V Operating Range
  • Low Noise: VOLP = 1.2V (Max)
  • Pin and Function Compatible with Other Standard Logic Families
  • Latchup Performance Exceeds 300mA
  • ESD Performance: HBM > 2000V; Machine Model > 200V
  • Chip Complexity: 308 FETs or 77 Equivalent Gates

    APPLICATION NOTES
  • Do not force a signal on an I/O pin when it is an active output,
    damage may occur.
  • All floating (high impedance) input or I/O pins must be fixed by
    means of pull up or pull down resistors or bus terminator ICs.
  • A parasitic diode is formed between the bus and VCC terminals.
    Therefore, the VHC245 cannot be used to interface 5V to 3V systems
    directly.
  • These devices are available in Pb-free package(s). Specifications herein apply to both standard and Pb-free devices. Please see our website at www.onsemi.com for specific Pb-free orderable part numbers, or contact your local ON Semiconductor sales office or representative.

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VCC Min (V)

VCC Max (V)

tpd Max (ns)

IO Max (mA)

Reference Price

MC74VHC245DTG

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Obsolete

CAD Model

Pb

A

H

P

TSSOP-20

9.48

1

260

TUBE

75

N

8

3-State

2

5.5

7.5

8

Price N/A

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MC74VHC245DTR2G

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Active

CAD Model

Pb

A

H

P

TSSOP-20

9.48

1

260

REEL

2500

N

8

3-State

2

5.5

7.5

8

$0.3855

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MC74VHC245DWG

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Active

CAD Model

Pb

A

H

P

SOIC-20W

751D-05

3

260

TUBE

38

N

8

3-State

2

5.5

7.5

8

$0.4699

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MC74VHC245DWR2G

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Active

CAD Model

Pb

A

H

P

SOIC-20W

751D-05

3

260

REEL

1000

N

8

3-State

2

5.5

7.5

8

$0.4699

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Die Related Summary Data

Device: MC74VHC245DTG

Equivalent to wafer fab process: CMOS SUB

製品技術

製品技術

等価デバイス時間

MTBF/MTTF (時間)

FITS

CMOS SUB

2

920154574

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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