ZHCSQK2F December 1982 – May 2022 SN54HC244 , SN74HC244
PRODUCTION DATA
请参考 PDF 数据表获取器件具体的封装图。
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | ||||
---|---|---|---|---|---|---|---|---|---|
tpd | From A (input) to Y (output) | VCC = 2 V | SN54HC244 | 245 | ns | ||||
SN74HC244 | 210 | ||||||||
VCC = 4.5 V | SN54HC244 | 49 | |||||||
SN74HC244 | 42 | ||||||||
VCC = 6 V | SN54HC244 | 42 | |||||||
SN74HC244 | 35 | ||||||||
ten | From OE (input) to Y (output) | VCC = 2 V | SN54HC244 | 300 | ns | ||||
SN74HC244 | 250 | ||||||||
VCC = 4.5 V | SN54HC244 | 60 | |||||||
SN74HC244 | 50 | ||||||||
VCC = 6 V | SN54HC244 | 51 | |||||||
SN74HC244 | 43 | ||||||||
tt | To Y (output) | VCC = 2 V | SN54HC244 | 315 | ns | ||||
SN74HC244 | 265 | ||||||||
VCC = 4.5 V | SN54HC244 | 63 | |||||||
SN74HC244 | 53 | ||||||||
VCC = 6 V | SN54HC244 | 53 | |||||||
SN74HC244 | 45 |