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M54HC670 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 4 WORD x 4 BIT REGISTER FILE - ST Microelectronics

भाग संख्या M54HC670
समारोह 4 WORD x 4 BIT REGISTER FILE
मैन्युफैक्चरर्स ST Microelectronics 
लोगो ST Microelectronics लोगो 
पूर्व दर्शन
1 Page
		
<?=M54HC670?> डेटा पत्रक पीडीएफ

M54HC670 pdf
M54/M74HC670
WRITE FUNCTION TABLE
READ FUNCTION TABLE
WRITE INPUTS
WORDS
READ INPUTS
OUTPUTS
WB WA WE 0 1 2 3
RB RA RE Q0 Q1 Q2 Q3
L L L Q = D Q0 Q0 Q0
L L L W0B1 W0B2 W0B3 W0B4
L H L Q0 Q = D Q0 Q0
L H L W1B1 W1B2 W1B3 W1B4
H L L Q0 Q0 Q = D Q0
H L L W2B1 W2B2 W2B3 W2B4
H H L Q0 Q0 Q0 Q = D
H H L W3B1 W3B2 W3B3 W3B4
X X H Q0 Q0 Q0 Q0
XXH Z Z Z Z
Notes:
1 *: DON’T CARE Z: HIGH IMPEDANCE
2 (Q = D) = THE FOUR SELECT INTERNAL FLIP FLOP OUTPUTS WILL ASSUME THE STATES APPLIED TO THE FOUR
EXTERNAL DATA INPUTS.
3 Q0 = THE LEVEL OF Q BEFORE THE INDICATED INPUT CONDITIONS WERE ESTABLISHED.
4 W0B1 = THE FIRST BIT OF WORD 0, ETC.
LOGIC DIAGRAM
2/12

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