M54HC244

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Design Win

Rad-Hard Octal Bus Buffer 3-State

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Product overview

Description

The M54HCxxx and M54HCTxxx series is composed of CMOS functions specifically designed to meet the radiation requirements of the aerospace industry. They include a large set of gates, flip-flops, multiplexers, counters, bus interface and several other functions.

The maximum operating frequency of the HC/HCT series varies between 20 to 55 MHz at 4.5 V and 25 °C depending on the products.

All types of the series feature a total dose hardness at 50 krad(Si), a high single event latch-up (SEL) immunity and a wide operating temperature range.

Housed in ceramic hermetic packages, all the products of the series are ESCC qualified, making them ideally suited for use in space and other harsh environmental conditions.

The complete specification of each type is available from the ESCC web site: https://escies.org using its ESCC part number.

Dedicated technical notes provide additional information on:

- TN1181: Engineering model quality level

- TN0873: Manufacturing and quality specification of products in die form

- TN1292: 100 krad(Si) versions

- TN0985: "Class S equivalent" flow specification, for use of ESCC products in a MIL-STD-883 environment.

  • All features

    • ESCC qualified
    • 7 V Absolute maximum ratings
    • 2 V to 6 V operating voltage for CMOS M54HCxxx series
    • 4.5 V to 5.5 V operating voltage for TTL M54HCTxxx series
    • Ceramic hermetic packages
    • -55 °C to +125 °C operating temperature range
    • Radiation hardness:
      • TID : 50 krad(Si)
      • SEL immune up to 125 MeV.cm²/mg

EDA Symbols, Footprints and 3D Models

STMicroelectronics - M54HC244

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
M54HC244DG
Active
DIL-20 Industrial N/A
M54HC244K1
NRND
Flat-20E Industrial N/A
M54HC244KG
Active
Flat-20E Industrial N/A
M54HC244KT
Active
Flat-20E Industrial N/A

M54HC244DG

Package:

DIL-20

Material Declaration**:

Marketing Status

Active

Package

DIL-20

Grade

Industrial

RoHS Compliance Grade

N/A

M54HC244K1

Package:

Flat-20E

Material Declaration**:

Marketing Status

NRND

Package

Flat-20E

Grade

Industrial

RoHS Compliance Grade

N/A

M54HC244KG

Package:

Flat-20E

Material Declaration**:

Marketing Status

Active

Package

Flat-20E

Grade

Industrial

RoHS Compliance Grade

N/A

M54HC244KT

Package:

Flat-20E

Material Declaration**:

Marketing Status

Active

Package

Flat-20E

Grade

Industrial

RoHS Compliance Grade

N/A

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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Part Number
Marketing Status
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Package
Packing Type
RoHS
Country of Origin
ECCN (US)
ECCN (EU)
Package: Product Marking
SMD PIN/Detailed Spec
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Lead Finish
M54HC244KG
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Distributor availability of M54HC244KG

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M54HC244DG
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M54HC244KT
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Distributor availability of M54HC244KT

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Distributor reported inventory date:

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M54HC244K1
Available at distributors

Distributor availability of M54HC244K1

Distributor Name
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Distributor reported inventory date:

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M54HC244KG Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

M54HC244KG

Package: Product Marking:

940104801F

SMD PIN/Detailed Spec:

940104801F

Quality Level:

ESCC Flight

Lead Finish:

Gold

M54HC244DG Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

M54HC244DG

Package: Product Marking:

940104803F

SMD PIN/Detailed Spec:

940104803F

Quality Level:

ESCC Flight

Lead Finish:

Gold

M54HC244KT Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

M54HC244KT

Package: Product Marking:

940104802F

SMD PIN/Detailed Spec:

940104802F

Quality Level:

ESCC Flight

Lead Finish:

Solder Dip

M54HC244K1 NRND

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

M54HC244K1

Package: Product Marking:

M54HC244K1

SMD PIN/Detailed Spec:

-

Quality Level:

Engineering Model

Lead Finish:

Gold

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors