A series of DTL devices from TI.
Pinouts for devices in this series correlate to standard 800/900 series DTL. Also, SN15846 (846 quad 2-in NAND DTL) ICs have been observed in place of SN3925 in a Canon 163 calculator.
The difference then, between this series and standard 800/900 series DTL is not known. There may be no functional difference. These may be units selected for consumer-grade service, or just stamped with part numbers specifically for Canon.
|Known Devices:||SN3920, SN3925, SN3931, SN4552, SN4553, SN4554, SN4555, SN4556.|
|Period:||Late 1960s to early 1970s.|
|Source of Data:||Data for these devices was obtained from a data sheet for the Monroe 925 and reverse engineering of a Canon EP151 and Canon 163.|
|Supply Voltage:||+5 V.|
|Logic:||Gate symbols are presented in accordance with
TI SN3900/SN4500 Series
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