AC Types Feature 1.5-V to 5.5-V Operation

and Balanced Noise Immunity at 30% of the

Supply Voltage

Speed of Bipolar F, AS, and S, With

Significantly Reduced Power Consumption

Balanced Propagation Delays

±24-mA Output Drive Current

– Fanout to 15 F Devices

SCR-Latchup-Resistant CMOS Process and

Circuit Design

Exceeds 2-kV ESD Protection Per

MIL-STD-883, Method 3015

description/ordering information

The ’AC112 devices contain two independent J-K negative-edge-triggered flip-flops. A low level at the preset

(PRE) or clear (CLR) inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE

and CLR are inactive (high), data at the J and K inputs meeting the setup-time requirements is transferred to

the outputs on the negative-going edge of the clock pulse (CLK). Clock triggering occurs at a voltage level and

is not directly related to the fall time of the clock pulse. Following the hold-time interval, data at the J and K inputs

may be changed without affecting the levels at the outputs. These versatile flip-flops can perform as toggle

flip-flops by tying J and K high.