SN74AS574 Octal D-Type Edge-Triggered Flip-Flops With 3-State Outputs | TI.com

SN74AS574
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Octal D-Type Edge-Triggered Flip-Flops With 3-State Outputs

 

Description

These octal D-type edge-triggered flip-flops feature 3-state outputs designed specifically for bus driving. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight flip-flops enter data on the low-to-high transition of the clock (CLK) input. The SN74ALS575A, SN54AS575, and SN74AS575 may be synchronously cleared by taking the clear () input low.

The output-enable () input does not affect internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

The SN54ALS574B, SN54AS574, and SN54AS575 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS574B, SN74ALS575A, SN74AS574, and SN74AS575 are characterized for operation from 0°C to 70°C.

Features

  • 3-State Buffer-Type Noninverting Outputs Drive Bus Lines Directly
  • Bus-Structured Pinout
  • Buffered Control Inputs
  • SN74ALS575A and ´AS575 Have Synchronous Clear
  • Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), Standard Plastic (N, NT) and Ceramic (J, JT) 300-mil DIPs, and Ceramic Flat (W) Packages

 

Parametrics

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Part number Order Technology Family Input type Output type VCC (Min) (V) VCC (Max) (V) Channels (#) Clock Frequency (Max) (MHz) ICC (uA) IOL (Max) (mA) IOH (Max) (mA) Features Rating Package Group
SN74AS574 Order now AS     Bipolar     3-State     4.5     5.5     8     100     142000     48     -15     Very high speed (tpd 5-10ns)     Catalog     PDIP | 20
SOIC | 20    
SN54AS574 Samples not available AS     Bipolar     3-State     4.5     5.5     8     100     142000     48     -15     Very high speed (tpd 5-10ns)     Military     CDIP | 20