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74F269
Datasheet
General description
The 74F269 is a fully synchronous 8-stage Up/Down Counter featuring a preset capability for programmable operation, carry look-ahead for easy cascading and a U/D input to control the direction of counting. All state changes, whether in counting or parallel loading, are initiated by the rising edge of the clock.
Features
- Synchronous counting and loading
- Built-in look-ahead carry capability
- Count frequency 115MHz typ
- Supply current 95mA typ
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| N74F269D | N74F269D | 9337 842 50602 | Volume production | SOT137-1
(SO24) | Tube (Signetics) | Standard Marking | N74F269D
| week 50, 2004 |
| N74F269D | N74F269D-T | 9337 842 50623 | Volume production | SOT137-1
(SO24) | Reel Pack, SMD, 13" (Signetics) | Standard Marking | N74F269D
| week 50, 2004 |
| N74F269DB | N74F269DB | 9352 420 10112 | Volume production | SOT340-1
(SSOP24) | Tube | Standard Marking | N74F269DB
| week 12, 2005 |
| N74F269DB | N74F269DB-T | 9352 420 10118 | Volume production | SOT340-1
(SSOP24) | Reel Pack, SMD, 13" | Standard Marking | N74F269DB
| week 12, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| N74F269D | 9337 842 50602 | 1.5400 | not available | |||||
| N74F269D | 9337 842 50623 | 1.5400 | Order samples | |||||
| N74F269DB | 9352 420 10112 | 2.1900 | not available | |||||
| N74F269DB | 9352 420 10118 | 2.1900 | Order samples |
Technical documents
Application Notes
AN202_1;
Testing and specifying FAST logic (01-Jun-87)
AN203_2;
Test Fixtures for High Speed Logic (02-Apr-98)
AN216_2;
Arbitration in shared resource systems (18-Jul-88)
Parametrics/similar products
| Type number | Package | Description | Fmax(MHz) | Propagation Delay(ns) | Voltage | No. of Pins | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|
| N74F269D | SOT137-1
(SO24) | 8-Bit Bidirectional Binary Counter | 115 | 6.5 | 4.5-5.5 V | 24 | TTL | -1/+20 mA |
| N74F269DB | SOT340-1
(SSOP24) | 8-Bit Bidirectional Binary Counter | 115 | 6.5 | 4.5-5.5 V | 24 | TTL | -1/+20 mA |
Similar products
74F269 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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