The Intel 8282 is an 8-bit

latch A latch or catch (called sneck in Northern England and Scotland) is a type of mechanical fastener that joins two (or more) objects or surfaces while allowing for their regular separation. A latch typically engages another piece of hardware on ...

, which was developed primarily for the Intel-8086/ 8087/

8088 The Intel 8088 ("''eighty-eighty-eight''", also called iAPX 88) microprocessor is a variant of the Intel 8086. Introduced on June 1, 1979, the 8088 has an eight-bit external data bus instead of the 16-bit bus of the 8086. The 16-bit registers and ...

8089 The Intel 8089 input/output coprocessor was available for use with the 8086/8088 central processor. It was announced in May 1979, but the price was not available at that time. It used the same programming technique as 8087 for input/output operat ...

-processors. The component comes in 20-pin DIL package. It was licensed to companies such as NEC and Siemens. With the ROM-less versions of the MCS-48 and MCS-51 microcontroller (8035/8039 and 8031/8032) compact systems with external ROM / EPROM can be realized. The 8282 can also be used in 8080/ 8085-systems replacing the 8212. If (''Output Enable'') is connected to GND, the chip is selected. STB (''Strobe'') is connected to the pin ALE (''Address Latch Enable'') of the processor and takes over the address data from the multiplexed address-/databus. The 8283 has the same functionality, but the data is inverted. In 1980 the Intel 8282 and I8282 (industrial grade) version was available for 5.55 USD and 16.25 USD in quantities of 100 respectively.8086 Available for industrial environment, Intel Preview Special Issue: 16-Bit Solutions, Intel Corporation, May/June 1980, page 29 Intel 8282 is functionally identical to 74573 octal latch, although the pinout differ slightly. : 8282 IMG 0792

References

Literature and datasheets

* Datasheet (Intel)
8282/8283 Octal Latch
* NEC Electronics (Europe) GmbH, 1982 Catalog, p. 703–706

External links

* www.cpu-world.com
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{{DEFAULTSORT:8282 Input/output integrated circuits Intel chipsets