M74HC112 DUAL J-K FLIP FLOP WITH PRESET AND CLEAR HIGH SPEED : f = 79MHz (TYP.) at V = 6V MAX CC LOW POWER DISSIPATION: I =2A(MAX.) at T =25C CC A HIGH NOISE IMMUNITY: V = V = 28 % V (MIN.) NIH NIL CC DIP SOP TSSOP SYMMETRICAL OUTPUT IMPEDANCE: I = I = 4mA (MIN) OH OL BALANCED PROPAGATION DELAYS: t t PLH PHL ORDER CODES WIDE OPERATING VOLTAGE RANGE: PACKAGE TUBE T & R V (OPR) = 2V to 6V CC DIP M74HC112B1R PIN AND FUNCTION COMPATIBLE WITH SOP M74HC112M1R M74HC112RM13TR 74 SERIES 112 TSSOP M74HC112TTR DESCRIPTION The M74HC112 is an high speed CMOS DUAL may be allowed to change when the clock pulse is J-K FLIP-FLOP WITH PRESET AND CLEAR high and the bistable will function as shown in the 2 fabricated with silicon gate C MOS technology. truth table. Input data is transferred to the input on The M74HC112 dual JK flip-flop features the negative going edge of the clock pulse. individual J, K, clock, and asynchronous set and All inputs are equipped with protection circuits clear inputs for each flip-flop. When the clock goes against static discharge and transient excess high, the inputs are enabled and data will be voltage. accepted. The logic level of the J and K inputs PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/12 Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) M74HC112 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION Clock Input(HIGH to LOW 1, 13 1CK, 2CK edge triggered) Data Inputs: Flip-Flop 1 2, 12 1K, 2K and 2 Data Inputs: Flip-Flop 1 3, 11 1J, 2J and 2 4, 10 1PR, 2PR Set Inputs 5, 9 1Q, 2Q True Flip-Flop Outputs Complement Flip-Flop 6, 7 1Q, 2Q Outputs 15, 14 1CLR, 2CLR Reset Inputs 8 GND Ground (0V) 16 Vcc Positive Supply Voltage TRUTH TABLE INPUTS OUTPUTS FUNCTION CLR PR JK CK Q Q L H X X X L H CLEAR H L X X X H L PRESET LL X X X H H ---- H H L L Qn Qn NO CHANGE HHH L H L ---- H H LH LH ---- HHHH Qn Qn TOGGLE H H X X Qn Qn NO CHANGE X : Dont Care LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays 2/12 Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s)