74ACT109

Features:

· ICC reduced by 50%
· Outputs source/sink 24 mA
·ACT109 has TTL-compatible inputs


Pinout




Specifications

Supply Voltage (VCC)  . . . . . . . . . . . . . . .−0.5V to +7.0V
DC Input Diode Current (IIK)
    VI = −0.5V  . . . . . . . . . . . . . . . . . . . . . . . .  . .  −20 mA
    VI = VCC + 0.5V  . . . . . . . . . . . . . . . . . . . . . ..  +20 mA
DC Input Voltage (VI)  . . . . . . . . . . .−0.5V to VCC + 0.5V
DC Output Diode Current (IOK)
    VO = −0.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . −20 mA
    VO = VCC + 0.5V . . . . . . . . . . . . . . . . . . . . . .   +20 mA
DC Output Voltage (VO)  . . . . . . . .  −0.5V to VCC + 0.5V
DC Output Source
or Sink Current (IO) . . . . . . . . . . . . . . . . . . . . .  ± 50 mA
DC VCC or Ground Current
per Output Pin (ICC or IGND)  . . . . . . . . . . . . . .± 50 mA
Storage Temperature (TSTG)  . . . . . .−65°C to +150°C
Junction Temperature (TJ)
    PDIP  . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . .140°C


Description

The 74ACT109 consists of two high-speed completely independent transition clocked JK flip-flops. The clocking
operation is independent of rise and fall times of the clock waveform. TheJK design allows operation as a D-Type
flip-flop (refer to AC/ACT74 data sheet) by connecting the J and K inputs together.

Asynchronous Inputs of the 74ACT109:
LOW input to SD (Set) sets Q to HIGH level
LOW input to CD (Clear) sets Q to LOW level
Clear and Set are independent of clock
Simultaneous LOW on CD and SD makes
both Q and Q HIGH