SN74ALS299

Name: SN74ALS299
Brand: TI
SKU: SN74ALS299
Price: 2.876 USD

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具有三态输出的 8 位通用移位/存储寄存器

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数据表

document-pdfAcrobat 8-Bit Universal Shift/Storage Registers With 3-State Outputs 数据表 (Rev. B) (英语)

SN74ALS299

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数据表

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Configuration

Universal

Bits (#)

8

Technology family

ALS

Supply voltage (min) (V)

4.5

Supply voltage (max) (V)

5.5

Input type

Bipolar

Output type

3-State

Clock frequency (MHz)

30

IOL (max) (mA)

24

IOH (max) (mA)

-2.6

Supply current (max) (µA)

40000

Features

High speed (tpd 10-50ns)

Operating temperature range (°C)

0 to 70

Rating

Catalog

Configuration

Universal

Bits (#)

8

Technology family

ALS

Supply voltage (min) (V)

4.5

Supply voltage (max) (V)

5.5

Input type

Bipolar

Output type

3-State

Clock frequency (MHz)

30

IOL (max) (mA)

24

IOH (max) (mA)

-2.6

Supply current (max) (µA)

40000

Features

High speed (tpd 10-50ns)

Operating temperature range (°C)

0 to 70

Rating

Catalog

PDIP (N)

20

228.702 mm² 24.33 x 9.4

SOIC (DW)

20

131.84 mm² 12.8 x 10.3

Multiplexed I/O Ports Provide Improved Bit Density
Four Modes of Operation:
- Hold (Store)
- Shift Right
- Shift Left
- Load Data
Operate With Outputs Enabled or at High Impedance
3-State Outputs Drive Bus Lines Directly
Can Be Cascaded for n-Bit Word Lengths
Direct Overriding Clear
Applications:
- Stacked or Push-Down Registers
- Buffer Storage
- Accumulator Registers
Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

Multiplexed I/O Ports Provide Improved Bit Density
Four Modes of Operation:
- Hold (Store)
- Shift Right
- Shift Left
- Load Data
Operate With Outputs Enabled or at High Impedance
3-State Outputs Drive Bus Lines Directly
Can Be Cascaded for n-Bit Word Lengths
Direct Overriding Clear
Applications:
- Stacked or Push-Down Registers
- Buffer Storage
- Accumulator Registers
Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

These 8-bit universal shift/storage registers feature multiplexed I/O ports to achieve full 8-bit data handling in a single 20-pin package. Two function-select (S0, S1) inputs and two output-enable (OE1\, OE2\) inputs can be used to choose the modes of operation listed in the function table.

Synchronous parallel loading is accomplished by taking both S0 and S1 high. This places the 3-state outputs in the high-impedance state and permits data applied on the I/O ports to be clocked into the register. Reading out of the register can be accomplished while the outputs are enabled in any mode. Clearing occurs asynchronously when the clear (CLR\) input is low. Taking either OE1\ or OE2\ high disables the outputs, but has no effect on clearing, shifting, or storing data.

The SN54ALS299 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS299 is characterized for operation from 0°C to 70°C.

These 8-bit universal shift/storage registers feature multiplexed I/O ports to achieve full 8-bit data handling in a single 20-pin package. Two function-select (S0, S1) inputs and two output-enable (OE1\, OE2\) inputs can be used to choose the modes of operation listed in the function table.

Synchronous parallel loading is accomplished by taking both S0 and S1 high. This places the 3-state outputs in the high-impedance state and permits data applied on the I/O ports to be clocked into the register. Reading out of the register can be accomplished while the outputs are enabled in any mode. Clearing occurs asynchronously when the clear (CLR\) input is low. Taking either OE1\ or OE2\ high disables the outputs, but has no effect on clearing, shifting, or storing data.

The SN54ALS299 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS299 is characterized for operation from 0°C to 70°C.

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