
74ABT574A
Octal D-type flip-flop (3-State)
The 74ABT574A high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive.
The 74ABT574A is an 8-bit, edge triggered register coupled to eight 3-State output buffers. The two sections of the device are controlled independently by the clock (CP) and Output Enable (OE) control gates. The state of each D input (one set-up time before the Low-to-High clock transition) is transferred to the corresponding flip-flop?s Q output.
When OE is Low, the stored data appears at the outputs. When OE is High, the outputs are in the High-impedance 'off' state, which means they will neither drive nor load the bus.
The 3-State output buffers are designed to drive heavily loaded 3-State buses, MOS memories, or MOS microprocessors. The active-Low Output Enable (OE) controls all eight 3-State buffers independent of the clock operation.
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| 74ABT574AD | 74ABT574AD,112 | 9351 999 30112 | Volume production | SOT163-1 (SO20) | Tube | Standard Marking | |
| 74ABT574AD | 74ABT574AD,118 | 9351 999 30118 | Volume production | SOT163-1 (SO20) | Tape reel smd | Standard Marking | |
| 74ABT574ADB | 74ABT574ADB,112 | 9351 999 40112 | Volume production | SOT339-1 (SSOP20) | Tube | Standard Marking | |
| 74ABT574ADB | 74ABT574ADB,118 | 9351 999 40118 | Volume production | SOT339-1 (SSOP20) | Reel Pack, SMD, 13" | Standard Marking | |
| 74ABT574AN | 74ABT574AN,112 | 9351 999 50112 | Volume production | SOT146-1 (DIP20) | Tube | Standard Marking | |
| 74ABT574APW | 74ABT574APW,112 | 9351 999 60112 | Volume production | SOT360-1 (TSSOP20) | Tube | Standard Marking | |
| 74ABT574APW | 74ABT574APW,118 | 9351 999 60118 | Volume production | SOT360-1 (TSSOP20) | Reel Pack, SMD, 13" | Standard Marking |
| Type number | Package | Description | Voltage | Logic Switching Levels | Output Drive Capability | Fmax(MHz) | No. of Pins | Propagation Delay(ns) |
|---|---|---|---|---|---|---|---|---|
| 74ABT574AD | SOT163-1 (SO20) | Octal D-Type Flip-Flop | 4.5-5.5 V | TTL | -32/+64 mA | 400 | 20 | 3.4 |
| 74ABT574ADB | SOT339-1 (SSOP20) | Octal D-Type Flip-Flop | 4.5-5.5 V | TTL | -32/+64 mA | 400 | 20 | 3.4 |
| 74ABT574AN | SOT146-1 (DIP20) | Octal D-Type Flip-Flop | 4.5-5.5 V | TTL | -32/+64 mA | 400 | 20 | 3.4 |
| 74ABT574APW | SOT360-1 (TSSOP20) | Octal D-Type Flip-Flop | 4.5-5.5 V | TTL | -32/+64 mA | 400 | 20 | 3.4 |
| Type number | Orderable part number | Chemical content | RoHS | Leadfree conversion date | RHF | IFR (FIT) | MTBF (hours) | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|
| 74ABT574AD | 74ABT574AD,112 | 74ABT574AD | week 4, 2004 | 1.33 | 7.518796992481203E8 | 1 | 1 | ||
| 74ABT574AD | 74ABT574AD,118 | 74ABT574AD | week 4, 2004 | 1.33 | 7.518796992481203E8 | 1 | 1 | ||
| 74ABT574ADB | 74ABT574ADB,112 | 74ABT574ADB | week 13, 2005 | 1.33 | 7.518796992481203E8 | 1 | 1 | ||
| 74ABT574ADB | 74ABT574ADB,118 | 74ABT574ADB | week 13, 2005 | 1.33 | 7.518796992481203E8 | 1 | 1 | ||
| 74ABT574AN | 74ABT574AN,112 | 74ABT574AN | Always Pb-free | 1.33 | 7.518796992481203E8 | NA | NA | ||
| 74ABT574APW | 74ABT574APW,112 | 74ABT574APW | week 7, 2005 | 1.33 | 7.518796992481203E8 | 1 | 1 | ||
| 74ABT574APW | 74ABT574APW,118 | 74ABT574APW | week 7, 2005 | 1.33 | 7.518796992481203E8 | 1 | 1 |
| Type | Format | Title | Date |
|---|---|---|---|
| Data sheet | Octal D-type flip-flop (3-State) (v.1.0) | 1995-05-22 | |
| Application note | Test Fixtures for High Speed Logic (v.2.0) | 1998-04-02 | |
| Other type | Functional selection guide ABT family (v.2.0) | 2004-08-13 |
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