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82S123 Datasheet PDF

NXP Semiconductors 82S123

The 82S23 and 82S123 are field programmable, which means that custom patterns are immediately available by following the Signetics Generic I fusing procedure. The 82S23 and 82S123 devices are supplied with all outputs at logical Low. These devices include on-chip decoding and 1 Chip Enable input for memory expansion.
Part No. 82S123
Datasheet 82S123 Download
Manufacturer
NXP Semiconductors
Description 256-bit TTL bipolar PROM
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82S123 datasheet page 1 preview

DESCRIPTION

Outputs are programmed to a logic High level at any specified address by fusing the Ni-Cr link matrix. They feature either Open Collector or 3-State outputs for optimization of word expansion in bused organizations. Ordering information can be found on the following page. The 82S23 and 82S123 devices are also processed to military requirements for operation over the military temperature range. For specifications and ordering information, consult the Signetics Military Data Handbook.

FEATURES

● Address access time: 50ns max
● Power dissipation: 1.3mW/bit typ
● Input loading: –100µA max
● On-chip address decoding
● One Chip Enable input
● Output options: – N82S23: Open Collector – N82S123: 3-State
● No separate fusing pins
● Unprogrammed outputs are Low level
● Fully TTL compatible

APPLICATIONS

● Prototyping/volume production
● Sequential controllers
● Format conversion
● Hardwired algorithms
● Random logic
● Code conversion PIN CONFIGURATIONS N Package O1 1 O2 2 O3 3 O4 4 O5...
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