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20-SOIC,DW
Integrated Circuits (ICs)

SN74ALS29821DW

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Texas Instruments

10-BIT BUS INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS

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20-SOIC,DW
Integrated Circuits (ICs)

SN74ALS29821DW

Active
Texas Instruments

10-BIT BUS INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS

Deep-Dive with AI

DocumentsDatasheet

Technical Specifications

Parameters and characteristics for this part

SpecificationSN74ALS29821DW
Current - Output High, Low [custom]24 mA
Current - Output High, Low [custom]48 mA
Current - Quiescent (Iq)115 mA
FunctionStandard
Max Propagation Delay @ V, Max CL16 ns
Mounting TypeSurface Mount
Number of Bits per Element [custom]10
Number of Elements1
Operating Temperature [Max]70 °C
Operating Temperature [Min]0 °C
Output TypeNon-Inverted, Tri-State
Package / Case24-SOIC
Package / Case [custom]7.5 mm
Package / Case [custom]0.295 in
Supplier Device Package24-SOIC
Trigger TypePositive Edge
TypeD-Type
Voltage - Supply [Max]5.25 V
Voltage - Supply [Min]4.75 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyN/A 0$ 6.13
18980$ 6.13
Tube 175$ 5.68
Texas InstrumentsTUBE 1$ 6.68
100$ 5.45
250$ 4.28
1000$ 3.63

Description

General part information

74ALS29821 Series

These 10-bit edge-triggered D-type flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. These devices are particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.

On the positive transition of the clock (CLK) input, the Q outputs are true to the data (D) input.

A buffered output-enable () input can place the ten outputs in either a normal logic state (high or low logic levels) or a high-impedance state. The outputs also are in the high-impedance state during power-up and power-down conditions. The outputs remain in the high-impedance state while the device is powered down. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components.

Documents

Technical documentation and resources