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ST72C254G2 데이터시트(PDF) 108 Page - STMicroelectronics |
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ST72C254G2 데이터시트(HTML) 108 Page - STMicroelectronics |
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108 / 140 page ![]() ST72104G, ST72215G, ST72216G, ST72254G 108/140 CLOCK AND TIMING CHARACTERISTICS (Cont’d) Table 22. Typical Ceramic Resonators for Automotive Applications Notes: 1. Murata Ceralock (refer to Table 23 for correlation factor) 2. VDD 4.5 to 5.5V 3. Values in parentheses refer to the capacitors integrated in the resonator Figure 65. Typical Application with Ceramic Resonator Notes: 1. Resonator characteristics given by the ceramic resonator manufacturer. 2. tSU(OSC) is the typical oscillator start-up time measured between VDD=2.8V and the fetch of the first instruction (with a quick VDD ramp-up from 0 to 5V (<50µs). 3. The oscillator selection can be optimized in terms of supply current using an high quality resonator with small RS value. Refer to ceramic resonator manufacturer for more details. Option Byte Config. fOSC (MHz) Resonator Part Number1 CL1 [pF]3 CL2 [pF]3 RFEXT [k Ω] RD [k Ω] LP 1 CSB1000JA 100 100 Open 3.3 CSBF1000JA 2 CSTS0200MGA06 (47) (47) 0 CSTCC2.00MGA0H6 MP 2 CSTS0200MGA06 CSTCC2.00MGA0H6 4 CSTS0400MGA06 CSTCC4.00MGA0H6 MS 4 CSTS0400MGA06 CSTCC4.00MGA0H6 8 CSTS0800MGA06 CSTCC8.00MGA0H6 HS 8 CSTS0800MGA06 CSTCC8.00MGA0H6 10 CSTS1000MGA03 (15) (15) CSTCC10.0MGA 12 CST12.0MTWA 30 30 CSTCS12.0MTA (30) (30) 162 CSA16.00MXZA040 15 15 CST16.00MXWA0C3 (15) (15) CSACV16.00MXA040Q 15 15 10 CSTCV16.00MXA0H3Q (15) (15) OSC2 OSC1 fOSC CL1 CL2 i2 RF ST72XXX RESONATOR WHEN RESONATOR WITH INTEGRATED CAPACITORS RD RF(EXT) |
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