SN74AS298A

Name: SN74AS298A
Brand: TI
SKU: SN74AS298A
Price: 1.973 USD

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数据表

document-pdfAcrobat Quadruple 2-Input Multiplexer With Storage 数据表 (Rev. B) (英语)

SN74AS298A

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数据表

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Technology family

AS

Function

Digital Multiplexer

Configuration

2:1

Number of channels

4

Operating temperature range (°C)

0 to 70

Rating

Catalog

Technology family

AS

Function

Digital Multiplexer

Configuration

2:1

Number of channels

4

Operating temperature range (°C)

0 to 70

Rating

Catalog

PDIP (N)

16

181.42 mm² 19.3 x 9.4

SOIC (D)

16

59.4 mm² 9.9 x 6

Selects One of Two 4-Bit Data Sources and Synchronously Stores Data With System Clock
Applications:
- Dual Source for Operands and Constants in Arithmetic Processor; Can Release Processor Register Files for Acquiring New Data
- Implements Separate Registers Capable of Parallel Exchange of Contents, Yet Retains External Load Capability
- Has Universal-Type Register for Implementing Various Shift Patterns, Including Compound Left-Right Capability
Package Options Include Plastic Small-Outline (D) Packages and Standard Plastic (N) 300-mil DIPs

Selects One of Two 4-Bit Data Sources and Synchronously Stores Data With System Clock
Applications:
- Dual Source for Operands and Constants in Arithmetic Processor; Can Release Processor Register Files for Acquiring New Data
- Implements Separate Registers Capable of Parallel Exchange of Contents, Yet Retains External Load Capability
- Has Universal-Type Register for Implementing Various Shift Patterns, Including Compound Left-Right Capability
Package Options Include Plastic Small-Outline (D) Packages and Standard Plastic (N) 300-mil DIPs

The SN74AS298A is a quadruple 2-input multiplexer with storage that provides essentially the equivalent functional capabilities of two separate MSI functions (SN74AS157 and ´AS175A) in a 16-pin package.

When the word-select (WS) input is low, word 1 (A1, B1, C1, D1) is applied to the flip-flops. A high input to WS causes the selection of word 2 (A2, B2, C2, D2). The selected word is clocked to the output terminals on the negative-going edge of the clock pulse.

The SN74AS298A is characterized for operation from 0°C to 70°C.

a1, a2, etc. = the level of steady-state input at A1, A2, etc.
Q_A0, Q_B0, etc. = the level of Q_A, Q_B, etc. entered on the most recent transition of CLK

The SN74AS298A is a quadruple 2-input multiplexer with storage that provides essentially the equivalent functional capabilities of two separate MSI functions (SN74AS157 and ´AS175A) in a 16-pin package.

When the word-select (WS) input is low, word 1 (A1, B1, C1, D1) is applied to the flip-flops. A high input to WS causes the selection of word 2 (A2, B2, C2, D2). The selected word is clocked to the output terminals on the negative-going edge of the clock pulse.

The SN74AS298A is characterized for operation from 0°C to 70°C.

a1, a2, etc. = the level of steady-state input at A1, A2, etc.
Q_A0, Q_B0, etc. = the level of Q_A, Q_B, etc. entered on the most recent transition of CLK

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