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74112

STMicroelectronics
Part Number 74112
Manufacturer STMicroelectronics
Description DUAL J-K FLIP FLOP
Published Apr 3, 2005
Detailed Description M54HC112 M74HC112 DUAL J-K FLIP FLOP WITH PRESET AND CLEAR . . . . . . . . HIGH SPEED fMAX = 67 MHz (TYP.) AT VCC = 5 ...
Datasheet PDF File 74112 PDF File

74112
74112


Overview
M54HC112 M74HC112 DUAL J-K FLIP FLOP WITH PRESET AND CLEAR .
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HIGH SPEED fMAX = 67 MHz (TYP.
) AT VCC = 5 V LOW POWER DISSIPATION ICC = 2 µA AT TA = 25 °C HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.
) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE |IOH| = IOL = 4 mA (MIN.
) BALANCED PROPAGATION DELAYS tPLH = tPHL WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V PIN AND FUNCTION COMPATIBLE WITH 54/74LS112 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC112F1R M74HC112M1R M74HC112B1R M74HC112C1R DESCRIPTION The M54/74HC112 is a high speed CMOS DUAL J-K FLIP-FLOP WITH PRESET AND CLEAR fabricated in silicon gate C2MOS technology.
It has the same high speed performance of LSTTL combined with true CMOS low power consumption.
The M54HC112/M74HC112 dual JK flip-flop features individual J,K, clock, and asynchronous set and clearinputs for each flip-flop.
When the clock goes high, the inputs are enabled and data will be accepted.
The logic level of the J and K inputs may be allowed to change when the clock pulse is high and the bistable will function as shown in the truth table.
Input data is transferred to the input on the negative going edge of the clock pulse.
All inputs are equipped withprotection circuits against static discharge and transient excess voltage.
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN CONNECTIONS (top view) NC = No Internal Connection October 1992 1/11 M54/M74HC112 TRUTH TABLE INPUTS CLR L H L H H H H H X: Don’t Care OUTPUTS K X X X L L H H X CK X X X Q L H H Qn H L Qn Qn Q H L H Qn L H Qn Qn PR H L L H H H H H J X X X L H L H X FUNCTION CLEAR PRESET NO CHANGE TOGGLE NO CHANGE PIN DESCRIPTION PIN No 1, 13 2, 12 3, 11 4, 10 5, 9 6, 7 15, 14 8 16 SYMBOL 1CK, 2CK 1K, 2K 1J, 2J 1PR, 2PR 1Q, 2Q 1Q, 2Q 1CLR, 2CLR GND V CC NAME AND FUNCTION Clock Input (HIGH to LOW edge triggered) Data Inputs: Flip-Flop 1 and 2 Data Inputs: Flip-Flop 1 and 2 Set Inputs T...


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