(China (Mainland))
Product Summary
The 82S137A/BVA is a field programmable 4k-bit TTL bipolar PROM, which means that custom patterns are immediately available by following the philips generaic I fusing procedure. The device is supplied with all outputs at a logical low. Outputs are programmed to a logic high level at any specified address by fusing the Ni-Cr link matrix. The applicaitons of the 82S137A/BVA are sequential controllers, control store, random logic and code conversion.
Parametrics
82S137A/BVA absolute maximum ratings: (1)VCC,supply votlage: 7V; (2)VI, input voltage: 5.5V; (3)VO, output voltage off-state: 5.5V; (4)TA, operating temperature range: -55 to 125℃; (5)Tstg, storage temperature range: -65 to 150℃.
Features
82S137A/BVA features: (1)address access time: 55ns max; (2)input loading: -150μA max; (3)on-chip address decoding; (4)no separate fusing pins; (5)unprogrammed outputs are low level; (6)fully TTL compatible; (7)two chip enable inputs; (8)outputs: 3-state.
Diagrams
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