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DSP56600FM/AD 데이터시트(PDF) 46 Page - NXP Semiconductors |
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DSP56600FM/AD 데이터시트(HTML) 46 Page - NXP Semiconductors |
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46 / 76 page ![]() Preliminary 2-4 DSP56652 Technical Data Sheet MOTOROLA Specifications Clock Requirements CLOCK REQUIREMENTS EXTERNAL BUS INTERFACE REQUIREMENTS When the MCU is operating at 16.8 MHz, the bus interface can access 100 ns access time external memory with one wait state or 15 ns access time external memory with no wait states. AC ELECTRICAL CHARACTERISTICS The characteristics listed in this section are given for VDDI = 1.8 V and VDDE = 3.3 V with a capacitive load of 50 pF. Table 2-4 Clock Requirements Characteristics Symbol Min Typ Max Units CKIH input frequency f1 0 Ñ 16.8 MHz CKIL input frequency f2 0 32.768 f1 kHz MCU internal frequency fMCU-CLK 0 Ñ 16.8 MHz DSP internal frequency fDSP-CLK Ñ Ñ 58.8 MHz CKIH input amplitude VI-CKIH 285 Ñ VIH mVPP CKIH input voltage VIH-CKIH 0Ñ VCCE V CKIL input low voltage VIL-CKIL -0.3 Ñ 0.2xVCCE V CKIL input high voltage VIH-CKIL VCCI Ñ 2.77 V CKIH input impedance RI-CKIH TBD Ñ TBD M W Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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