전자부품 데이터시트 검색엔진 |
|
TS68020MF25 데이터시트(PDF) 8 Page - ATMEL Corporation |
|
TS68020MF25 데이터시트(HTML) 8 Page - ATMEL Corporation |
8 / 45 page 8 TS68020 2115A–HIREL–07/02 This device contains protective circuitry against damage due to high static voltages or electrical fields; however, it is advised that normal precautions be taken to avoid applica- tion of any voltages higher than maximum-rated voltages to this high-impedance circuit. Reliability of operation is enhanced if unused inputs are tied to an appropriate logic volt- age level (e.g., either GND or VCC). Figure 5. Clock Input Timing Diagram Note: Timing measurements are referenced to and from a low voltage of 0.8V and a high volt- age of 2.0V, unless otherwise noted. The voltage swing through this range should start outside and pass through the range such that the rise or fall will be linear between 0.8V and 2.0V. Power Considerations The average chip-junction temperature, T J, in °C can be obtained from: T J =TA +(PD · θ JA)(1) T A = Ambient Temperature, °C θ JA = Package Thermal Resistance, Junction-to-Ambient, °C/W P D =PINT +PI/O P INT =ICC ·VCC, Watts — Chip Internal Power P I/O = Power Dissipation on Input and Output Pins — User Determined For most applications P I/O <PINT and can be neglected. An approximate relationship between P D and TJ (if PI/O is neglected) is: P D =K +(TJ + 273) (2) Solving equations (1) and (2) for K gives: K= P D ·(TA +273) + θJA ·PD 2 (3) where K is a constant pertaining to the particular part K can be determined from equa- tion (3) by measuring P D (at equilibrium) for a known TA. Using this value of K, the values of P D and TJ can be obtained by solving equations (1) and (2) iterativley for any value of T A. Table 4. Thermal Characteristics at 25 °C Package Symbol Parameter Value Unit PGA 114 θ JA Thermal Resistance - Ceramic Junction to Ambient 26 °C/W θ JC Thermal Resistance - Ceramic Junction to Case 5 °C/W CQFP 132 θ JA Thermal Resistance - Ceramic Junction to Ambient 34 °C/W θ JC Thermal Resistance - Ceramic Junction to Case 2 °C/W |
유사한 부품 번호 - TS68020MF25 |
|
유사한 설명 - TS68020MF25 |
|
|
링크 URL |
개인정보취급방침 |
ALLDATASHEET.CO.KR |
ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크교환 | 제조사별 검색 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |