SN54ACT564, SN74ACT564 OCTAL D-TYPE EDGE-TRIGGERED.
SN54ACT564 - OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
SN54ACT564, SN74ACT564 OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS SCAS549B – NOVEMBER 1995 – REVISED NOVEMBER 2002 D 4.5-V to 5.5-V .