
Semiconductor integrated circuits-Detail specification for type JT54LS247 BCD-to-seven segment decoders/drivers of LS-TTL
标准号:SJ 50597/15-1994
Semiconductor integrated circuits-Detail specification for type JT54LS247 BCD-to-seven segment decoders/drivers of LS-TTL
标准号:SJ 50597/15-1994