74HC76 Datasheet | STMicroelectronics

DESCRIPTION The M74HC76 is an high speed CMOS DUAL J-K FLIP FLOP WITH CLEAR fabricated with silicon gate C2MOS technology. Depending on with the logic level at J and K inputs, this device changes state on the negative going transition of clock pulse (CK). CLEAR (CLR) and PRESET (PR) are independent of the clock and are acplished by a logic low on the corresponding input. All inputs are equipped with protection circuits against static discharge and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS August 2001 1/11 M74HC76 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1, 6 2, 7 3, 8 4, 9 .. SYMBOL 1CK, 2CK NAME AND FUNCTION 10, 14 11, 15 16, 12 13 5 Clock Input(HIGH to LOW edge triggered) 1PR, 2PR Set Inputs (Active LOW) Asynchronous Reset 1CLR, 2CLR Inputs (Active LOW) Data Inputs: Flip-Flop 1 1J, 2J and 2 plement Flip-Flop 1Q, 2Q Outputs 1Q, 2Q True Flip-Flop Outputs Data Inputs: Flip-Flop 1 1K, 2K and 2 GND Ground (0V) Vcc Positive Supply Voltage TRUTH TABLE INPUTS CLR L H L H H H H H X : Don’t Care OUTPUTS FUNCTION K X X X L H L H X CK X X X Q L H H Qn L H Qn Qn Q H L H Qn H L Qn Qn CLEAR PRESET ---NO CHANGE ------TOGGLE NO CHANGE PR H L L H H H H H J X X X L L H H X LOGIC DIAGRAM 2/11 M74HC76 ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IIK IOK IO PD Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Current Power Dissipation Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 ± 20 ± 20 ± 25 ± 50 500(- ) -65 to +150 300 Unit V V V m A m A m A m A m W °C °C ICC or IGND DC VCC or Ground Current .. Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied (- ) 500m W at 65 °C; derate to 300m W by 10m W/°C from 65°C to 85°C REMENDED OPERATING CONDITIONS Symbol VCC VI VO Top tr, tf Supply Voltage Input Voltage Output Voltage...