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MSP430F2619 bảng dữ liệu(PDF) 39 Page - Texas Instruments |
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MSP430F2619 bảng dữ liệu(HTML) 39 Page - Texas Instruments |
39 / 120 page 39 MSP430F2619, MSP430F2618, MSP430F2617, MSP430F2616 MSP430F2419, MSP430F2418, MSP430F2417, MSP430F2416 www.ti.com SLAS541L – JUNE 2007 – REVISED MAY 2020 Submit Documentation Feedback Product Folder Links: MSP430F2619 MSP430F2618 MSP430F2617 MSP430F2616 MSP430F2419 MSP430F2418 MSP430F2417 MSP430F2416 Specifications Copyright © 2007–2020, Texas Instruments Incorporated (1) To improve EMI on the XT2 oscillator the following guidelines should be observed: • Keep the trace between the device and the crystal as short as possible. • Design a good ground plane around the oscillator pins. • Prevent crosstalk from other clock or data lines into oscillator pins XIN and XOUT. • Avoid running PCB traces underneath or adjacent to the XIN and XOUT pins. • Use assembly materials and processes that avoid any parasitic load on the oscillator XIN and XOUT pins. • If conformal coating is used, make sure that it does not induce capacitive or resistive leakage between the oscillator pins. • Do not route the XOUT line to the JTAG header to support the serial programming adapter as shown in other documentation. This signal is no longer required for the serial programming adapter. (2) Includes parasitic bond and package capacitance (approximately 2 pF per pin). Because the PCB adds additional capacitance, verify the correct load by measuring the ACLK frequency. For a correct setup, the effective load capacitance should always match the specification of the used crystal. (3) Requires external capacitors at both terminals. Values are specified by crystal manufacturers. (4) Frequencies below the MIN specification set the fault flag, frequencies above the MAX specification do not set the fault flag, and frequencies in between might set the flag. (5) Measured with logic-level input frequency, but also applies to operation with crystals. 5.31 Crystal Oscillator LFXT1, High-Frequency Mode (1) PARAMETER TEST CONDITIONS VCC MIN TYP MAX UNIT fLFXT1,HF0 LFXT1 oscillator crystal frequency, HF mode 0 XTS = 1, LFXT1Sx = 0, XCAPx = 0 1.8 V to 3.6 V 0.4 1 MHz fLFXT1,HF1 LFXT1 oscillator crystal frequency, HF mode 1 XTS = 1, LFXT1Sx = 1, XCAPx = 0 1.8 V to 3.6 V 1 4 MHz fLFXT1,HF2 LFXT1 oscillator crystal frequency, HF mode 2 XTS = 1, LFXT1Sx = 2, XCAPx = 0 1.8 V to 3.6 V 2 10 MHz 2.2 V to 3.6 V 2 12 3 V to 3.6 V 2 16 fLFXT1,HF,logic LFXT1 oscillator logic-level square-wave input frequency, HF mode XTS = 1, LFXT1Sx = 3, XCAPx = 0 1.8 V to 3.6 V 0.4 10 MHz 2.2 V to 3.6 V 0.4 12 3 V to 3.6 V 0.4 16 OAHF Oscillation allowance for HF crystals (see Figure 5-23 and Figure 5-24) XTS = 1, XCAPx = 0, LFXT1Sx = 0, fLFXT1,HF = 1 MHz, CL,eff = 15 pF 2700 Ω XTS = 1, XCAPx = 0, LFXT1Sx = 1, fLFXT1,HF = 4 MHz, CL,eff = 15 pF 800 XTS = 1, XCAPx = 0, LFXT1Sx = 2, fLFXT1,HF = 16 MHz, CL,eff = 15 pF 300 CL,eff Integrated effective load capacitance, HF mode(2) XTS = 1, XCAPx = 0(3) 1 pF Duty cycle, HF mode XTS = 1, XCAPx = 0, Measured at P2.0/ACLK, fLFXT1,HF = 10 MHz 2.2 V, 3 V 40% 50% 60% XTS = 1, XCAPx = 0, Measured at P2.0/ACLK, fLFXT1,HF = 16 MHz 40% 50% 60% fFault,HF Oscillator fault frequency(4) XTS = 1, LFXT1Sx = 3, XCAPx = 0(5) 2.2 V, 3 V 30 300 kHz |
Số phần tương tự - MSP430F2619 |
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Mô tả tương tự - MSP430F2619 |
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