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MC14517B Folha de dados(PDF) 4 Page - ON Semiconductor |
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MC14517B Folha de dados(HTML) 4 Page - ON Semiconductor |
4 / 6 page MC14517B http://onsemi.com 4 Figure 2. Typical Output Source Current Characteristics Test Circuit Figure 3. Typical Output Sink Current Characteristics Test Circuit EXTERNAL POWER SUPPLY IOH Vout = VOH VDD = VGS VSS D C WE D C WE Q16 Q32 Q48 Q64 Q16 Q32 Q48 Q64 (Output being tested should be in the high−logic state) EXTERNAL POWER SUPPLY IOL Vout = VOL VDD = VGS VSS D C WE D C WE Q16 Q32 Q48 Q64 Q16 Q32 Q48 Q64 (Output being tested should be in the low−logic state) Figure 4. AC Test Waveforms VDD VSS VDD VSS VDD VSS VDD VSS VDD VSS VDD VSS VDD VSS 50% 12216 17 18 19 33 90% 10% tsu 16−BIT OUTPUT 1 (15) 17−BIT INPUT 32−BIT OUTPUT 6 (10) 33−BIT INPUT 48−BIT OUTPUT 2 (14) 49−BIT INPUT 64−BIT OUTPUT 5 (11) th1 th1 th1 th1 tWH tWL tTHL tTHL tTHL tTHL VOL VOL VOL VOH VOH VOH 50% 90% 10% 20 ns trel tPHL tPHL tPHL tPHL tPLH 90% 10% tTLH tTLH tTLH tTLH th0 th0 th0 th0 tsu0 tsu0 tsu0 50% 20 ns 20 ns 20 ns VDD VDD VDD tsu0 tsu1 tsu1 tsu1 tsu1 DATA IN 7 (9) WRITE 3 (13) CLOCK 4 (12) PIN NO’S 90% 10% 50% tPLH tPLH tPLH EXPANDED BLOCK DIAGRAM (1/2 OF DEVICE SHOWN) WRITE ENABLE = 0, 16−BIT OUTPUT WRITE ENABLE = 1, 17−BIT INPUT CLOCK DATA WRITE ENABLE 32−BIT OUTPUT 33−BIT INPUT 48−BIT OUTPUT 49−BIT INPUT 64−BIT OUTPUT HIGH IMPEDANCE D C 3−STATE Q 32 D C WE Q 33 D C 3−STATE Q 48 D C WE Q 49 D C 3−STATE Q 64 D C Q 1 D C Q 2 D C 3−STATE Q 16 D C WE Q 17 |
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