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74HC158
Datasheet
General description
The 74HC is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL). The 74HC158 is specified in compliance with JEDEC standard no. 7A.
The 74HC158 is a quad 2-input multiplexer which select 4 bits of data from two sources and are controlled by a common data select input (S). The four outputs present the selected data in the inverted form. The enable input (E) is active LOW.
When E is HIGH, all the outputs (1Y to 4Y) are forced HIGH regardless of all other input conditions.
Moving the data from two groups of registers to four common output buses is a common use of the 74HC158. The state of S determines the particular register from which the data comes. It can also be used as a function generator.
The device is useful for implementing highly irregular logic by generating any four of the 16 different functions of two variables with one variable common.
The 74HC158 is the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to S.
The logic equations for the output are:
1Y = E.(1l1.S + 1l0.S)
2Y = E.(2l1.S + 2l0.S)
3Y = E.(3l1.S + 3l0.S)
4Y = E.(4l1.S + 4l0.S)
The 74HC158 is identical to the 74HC157 but has inverting outputs.
Features
- Low-power dissipation
- Inverting data path
- Complies with JEDEC standard no. 7A
- ESD protection:
- HBM EIA/JESD22-A114-B exceeds 2000 V
- MM EIA/JESD22-A115-A exceeds 200 V.
- Multiple package options
- Specified from -40 Cel to +80Cel and from -40 Cel to +125 Cel.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| 74HC158D | 74HC158D | 9337 137 60652 | Volume production | SOT109-1
(SO16) | Bulk Pack, CECC | Standard Marking | 74HC158D
| week 12, 2005 |
| 74HC158D | 74HC158D-T | 9337 137 60653 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13", CECC | Standard Marking | 74HC158D
| week 12, 2005 |
| 74HC158N | 74HC158N | 9336 693 50652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking | 74HC158N
| Always Pb-free |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 74HC158D | 9337 137 60652 | 0.2800 | not available | |||||
| 74HC158D | 9337 137 60653 | 0.2800 | Order samples | |||||
| 74HC158N | 9336 693 50652 | 0.2800 | Order samples |
Parametrics/similar products
| Type number | Package | Description | Propagation Delay(ns) | Voltage | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|
| 74HC158D | SOT109-1
(SO16) | Quad 2-Input Multiplexer; Inverting | 12@5V | 2.0-6.0 V | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC158N | SOT38-4
(DIP16) | Quad 2-Input Multiplexer; Inverting | 12@5V | 2.0-6.0 V | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
Similar products
74HC158 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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