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74F157A; 74F158A
Datasheet
(Product Specification)
30-Jun-00, 10 pages, 93 kB
General description
The 74F157A is a high speed Quad 2-Input Multiplexer which selects 4 bits of data from one of two sources under the control of a common Select input (S). The Enable input (E) is active when Low. When E is High, all of the outputs (Yn) are forced Low regardless of all other input conditions.
Moving data from two registers to a common output bus is a common use of the 74F157A. The state of the Select input determines the particular register from which the data comes.
The device is the logic implementation of a 4-pole, 2-position switch where the position of the switch is determined by the logic levels supplied to the Select input.
The 74F158A is similar, but has inverting outputs (Yn).
Products/packages
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| I74F157AD | I74F157AD,112 | 9352 077 20112 | Volume production | SOT109 | Tube | Standard Marking | |
| I74F157AD | I74F157AD,118 | 9352 077 20118 | Volume production | SOT109 | Reel Pack, SMD, 13" | Standard Marking | |
| I74F157AN | I74F157AN,112 | 9352 077 30112 | Volume production | SOT38-4
(DIP16) | Tube | Standard Marking | |
| N74F157AD | N74F157AD,602 | 9338 125 70602 | Volume production | SOT109 | Tube (Signetics) | Standard Marking | |
| N74F157AD | N74F157AD,623 | 9338 125 70623 | Volume production | SOT109 | Reel Pack, SMD, 13" (Signetics) | Standard Marking | |
| N74F157AN | N74F157AN,602 | 9338 125 60602 | 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 |
|---|---|---|---|---|---|---|---|---|
| I74F157AD | I74F157AD,112 | I74F157AD |
| week 6, 2004 | 5,63 | 1,78E+08 | 1 | |
| I74F157AD | I74F157AD,118 | I74F157AD |
| week 6, 2004 | 5,63 | 1,78E+08 | 1 | |
| I74F157AN | I74F157AN,112 | I74F157AN |
| Always Pb-free | 5,63 | 1,78E+08 | NA | |
| N74F157AD | N74F157AD,602 | N74F157AD |
| week 6, 2004 | 5,63 | 1,78E+08 | 1 | |
| N74F157AD | N74F157AD,623 | N74F157AD |
| week 6, 2004 | 5,63 | 1,78E+08 | 1 | |
| N74F157AN | N74F157AN,602 | N74F157AN |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| I74F157AD | 9352 077 20112 | I74F157AD,112 | not available | |||||||
| I74F157AD | 9352 077 20118 | I74F157AD,118 | not available | |||||||
| I74F157AN | 9352 077 30112 | I74F157AN,112 | not available | |||||||
| N74F157AD | 9338 125 70602 | N74F157AD,602 | 0.2300 | NA | MOUSER ELECTRONICS | 345 | 11/20/2009 | Buy online | not available | |
| NA | DIGI-KEY CORPORATION | 2,996 | 11/20/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 345 | 11/20/2009 | Buy online | ||||||
| NA | FUTURE ELECTRONICS | 2,530 | 11/19/2009 | Buy online | ||||||
| ASIA | WPI | 500 | 50 | 11/19/2009 | Buy online | |||||
| N74F157AD | 9338 125 70623 | N74F157AD,623 | 0.2300 | not available | ||||||
| N74F157AN | 9338 125 60602 | N74F157AN,602 | 0.3400 | not available |
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 |
|---|---|---|---|---|---|---|---|
| I74F157AD | SOT109
| Quad 2-Input Multiplexer; Non-Inverting | 4.6 | 4.5-5.5 V | 16 | TTL | -1/+20 mA |
| I74F157AN | SOT38-4
(DIP16) | Quad 2-Input Multiplexer; Non-Inverting | 4.6 | 4.5-5.5 V | 16 | TTL | -1/+20 mA |
| N74F157AD | SOT109
| Quad 2-Input Multiplexer; Non-Inverting | 4.6 | 4.5-5.5 V | 16 | TTL | -1/+20 mA |
| N74F157AN | SOT38-4
(DIP16) | Quad 2-Input Multiplexer; Non-Inverting | 4.6 | 4.5-5.5 V | 16 | TTL | -1/+20 mA |
Similar products
74F157A; 74F158A
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