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74F259
Datasheet
(Product Specification)
11-Apr-89, 12 pages, 106 kB
General description
The 74F259 addressable latch has four distinct modes of operation which are selectable by controlling the Master Reset (MR) and Enable (E) inputs . In the addressable latch mode, data at the Data inputs is written into the addressed latches. The addressed latches will follow the Data input with all unaddressed latches remaining in their previous states. In the store mode, all latches remain in their previous states and are unaffected by the Data or Address inputs. To eliminate the possibility of entering erroneous data in the latches, the enable should be held High (inactive) while the address lines are changing. In the 1-of-8 decoding or demultiplexing mode (MR=E=Low), addressed outputs will follow the level of the Data input, with all other outputs Low. In the Master Reset mode, all outputs are Low and unaffected by the Address and Data inputs.
Features
- Combines demultiplexer and 8-bit latch
- Serial-to-parallel capability
- Output from each storage bit available
- Random (addressable) data entry
- Easily expandable
- Common reset input
- Useful as 1-of-8 active-High decoder
Products/packages
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| N74F259D | N74F259D,602 | 9337 790 80602 | Volume production | SOT109 | Tube (Signetics) | Standard Marking | |
| N74F259D | N74F259D,623 | 9337 790 80623 | Volume production | SOT109 | Reel Pack, SMD, 13" (Signetics) | Standard Marking | |
| N74F259N | N74F259N,602 | 9337 312 90602 | Volume production | SOT38-4
(DIP16) | Tube (Signetics) | Standard Marking |
Quality/reliability/chemical content
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL |
|---|---|---|---|---|---|---|---|---|
| N74F259D | N74F259D,602 | N74F259D |
| week 6, 2004 | 5,63 | 1,78E+08 | 1 | |
| N74F259D | N74F259D,623 | N74F259D |
| week 6, 2004 | 5,63 | 1,78E+08 | 1 | |
| N74F259N | N74F259N,602 | N74F259N |
| Always Pb-free | 5,63 | 1,78E+08 | NA |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Orderable part number | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|---|
| N74F259D | 9337 790 80602 | N74F259D,602 | 1.5700 | NA | DIGI-KEY CORPORATION | 474 | 11/20/2009 | Buy online | not available | |
| NA | AVNET ELECTRONICS MARKETING | 1,000 | 11/19/2009 | Buy online | ||||||
| N74F259D | 9337 790 80623 | N74F259D,623 | 1.5700 | not available | ||||||
| N74F259N | 9337 312 90602 | N74F259N,602 | 1.5700 | NA | ARROW ELECTRONICS | 775 | 11/19/2009 | Buy online | not available | |
| NA | DIGI-KEY CORPORATION | 76 | 11/20/2009 | Buy online | ||||||
| NA | AVNET ELECTRONICS MARKETING | 846 | 11/19/2009 | Buy online |
Design support
Application Notes
AN216;
Arbitration in shared resource systems (1988-07-18)AN203;
Test Fixtures for High Speed Logic (1998-04-02)AN202;
Testing and specifying FAST logic (1987-06-01)Parametrics/similar products
| Type number | Package | Description | Propagation Delay(ns) | Voltage | No. of Pins | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|
| N74F259D | SOT109
| 8-Bit Addressable Latch | 7.0 | 4.5-5.5 V | 16 | TTL | -1/+20 mA |
| N74F259N | SOT38-4
(DIP16) | 8-Bit Addressable Latch | 7.0 | 4.5-5.5 V | 16 | TTL | -1/+20 mA |
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74F259
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