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ISPMACH4ACPLDFAMILY датащи(PDF) 41 Page - Lattice Semiconductor |
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ISPMACH4ACPLDFAMILY датащи(HTML) 41 Page - Lattice Semiconductor |
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41 / 62 page ![]() ispMACH 4A Family 41 ICC vs. FREQUENCY These curves represent the typical power consumption for a particular device at system frequen- cy.The selected “typical” pattern is a 16-bit up-down counter.This pattern fills the device and ex- ercises every macrocell. Maximum frequency shown uses internal feedback and a D-type register. Power/Speed are optimized to obtain the highest counter frequency and the lowest power.The highest frequency (LSBs) is placed in common PAL blocks, which are set to high power.The low- est frequency signals (MSBs) are placed in a common PAL block and set to lowest power. 350 300 250 200 150 100 50 0 VCC = 5 V or 3.3 V, TA = 25º C Frequency (MHz) M4A-32/32 M4A-64/32 M4A-128/64 M4A-256/128 Figure 19. ispMACH 4A ICC Curves at High Speed Mode M4A-256/160 M4A-64/64 M4A-96/48 400 M4A-512/160 M4A-192/96 M4A-384/160 250 200 150 100 50 0 VCC = 5 V or 3.3 V, TA = 25º C M4A-32/32 Frequency (MHz) M4A-64/32 M4A-128/64 M4A-256/128 Figure 20. ispMACH 4A ICC Curves at Low Power Mode M4A-256/160 M4A-64/64 M4A-96/48 M4A-512/160 M4A-192/96 M4A-384/160 |
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