



SDLS071 - DECEMBER 1972 - REVISED MARCH 1988
PRODUCTION DATA documents contain information current as of publicationdate. Products conform to specifications per the terms of Texas Instrumentsstandard warranty. Production processing does not necessarily include testingof all parameters.
These universal, monolithic, 9-bit (8 data bits plus 1 parity bit) paritygenerators/checkers, utilize familiar Series 54/74 TTL circuitry and featureodd/even outputs and control inputs to facilitate operation in either oddor even-parity applications. Depending on whether even or odd parity is beinggenerated or checked, the even or odd inputs can be utilized as the parityor 9th-bit input. The word-length capability is easily expanded by cascading.
The SN54180/SN74180 are fully compatible with other TTL or DTL circuits.Input buffers are provided so that each data input represents only one normalizedseries 54/74 load. A full fan-out to 10 normalized series 54/74 loads is availablefrom each of the outputs at a low logic level. A fan-out to 20 normalizedloads is provided at a high logic level to facilitate the connection of unusedinputs to used inputs. Typical power dissipation is 170 mW.
The SN54180 is characterized for operation over the full military temperaturerange of -55°C to 125°C; and the SN74180 is characterized for operationfrom 0°C to 70°C.
View more information about generic part numbers:SN54180, SN74180
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