Interface Logic Circuit Comparators, counters, latches, drivers m

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Interface Logic Circuit Comparators, counters, latches, drivers m

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CY7C9
Interface Logic Circuit
Comparators, counters, latches, drivers minimize logic requirements variety multiplexed non-multiplexed buses Directly drives VMEbus address data signals 8-bit comparator slave address decoding Flexible interface optimized VMEbus applications Companion device Cypress VMEbus family components Replaces multiple SSI/MSI components Cascadable 64-pin 68-pin packages VMEbus Interface Handbook more information ler. every case, controllers provide control timing signals Interface Logic Circuit acts bridge between VMEbus Local bus.
Application with VMEbus Architecture
with Cypress VMEbus Controllers CY7C964 Interface Logic Circuit seamless interface between VIC068A/VIC64 VMEbus signals. device functions equally well established 32-bit VMEbus arena 64-bit VMEbus standard. device contains three 8-bit counters fulfill functions Block counters, counters implied portion VMEbus specification. also contains necessary multiplexing logic allow 64-bit-wide VMEbus path funnelled from 32-bit local bus. Control circuitry included manage switching 32-bit address during normal (32-bit) operations, during MBLT (64-bit) operations. on-chip drivers capable driving VMEbus directly mA). Other VMEbus Controller Implementations CY7C964 circuitry designed designers VMEbus circuitry, including (VME subsystem bus) designs requiring features Cypress VIC068A, VIC64, CY7C960, CY7C961. logic diagram includes general-purpose blocks comparators, counters, latches that controlled using flexible control interface allow many different options implemented. Although device packaged small 64-pin package, multiplexed input output pins provides access many internal functions, thus saving external circuitry.
Functional Description
CY7C964 integrates several space-consuming functions into small package, freeing board space implementation added-value board features. contains counters, comparators, latches, drivers configured value implementors backplane interface with address data buses, particularly VMEbus interfaces. on-chip drivers suitable driving VMEbus directly. CY7C964 ideal applications where high-performance real estate primary concerns. Although having many applications, Interface Logic Circuit ideal companion part Cypress's VMEbus family components, VIC068A, VIC64, CY7C960, CY7C961. intended drive address data buses, three four these small devices needed control-
Configuration
PQFP/CQFP/TQFP View
STROBE* MWB* LCOUT* VCOMP* VCOUT* LADO LADI LEDI LEDO
DENIN* DENIN1* LAEN LCIN* VCIN* BLT* DENO* ABEN*
Cypress Semiconductor Corporation
3901 North First Street
C964-1
Jose 95134 408-943-2600 November 1992 Revised December 1997
CY7C9Pin Configuration (continued)
68-Pin Ceramic Bottom View
ABEN*
LCIN*
DENIN1*
DENO*
BLT*
VCIN*
LAEN
DENIN*
LEDI
LADO
VCOMP*
LCOUT*
STROBE*
LEDO
LADI
VCOUT*
MWB*
Index Mark
CY7C9Application with Other Architectures
CY7C964 optimized applications requiring wide buffers high-performance multiplexing operations. architecture configured provide functions such 16-bit bidirectional three-state latch 16-bit comparator with mask register, more complex functions such 16-to-8 pipelined bidirectional multiplexer with address counter/comparator circuitry. device cascaded generate counters comparators suitable multiple byte address/data buses. on-chip drivers directly connected many standard backplane buses.
Ordering Information
Ordering Code CY7C964-ASC CY7C964-NC CY7C964-GM CY7C964-GMB CY7C964-UM CY7C964-UMB Package Name Package Type 64-Pin Thin Quad Flatpack 64-Pin Plastic Quad Flatpack 68-Pin Ceramic 68-Pin Ceramic 64-Pin Ceramic Quad Flatpack 64-Pin Ceramic Quad Flatpack Military Operating Range Commercial
Related Documents
VMEbus Interface Handbook
Document 38-00197-C
CY7C9Package Diagrams
64-Pin Thin Quad Flatpack
68-Pin Grid Array (Cavity
CY7C9Package Diagrams (continued)
64-Lead Plastic Thin Quad Flatpack
CY7C9Package Diagrams (continued)
64-Lead Ceramic Quad Flatpack (Cavity
Cypress Semiconductor Corporation, 1997. information contained herein subject change without notice. Cypress Semiconductor Corporation assumes responsibility circuitry other than circuitry embodied Cypress Semiconductor product. does convey imply license under patent other rights. Cypress Semiconductor does authorize products critical components life-support systems where malfunction failure reasonably expected result significant injury user. inclusion Cypress Semiconductor products life-support systems application implies that manufacturer assumes risk such doing indemnifies Cypress Semiconductor against charges.

Interface Logic Circuit Comparators, counters, latches, drivers m

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