전자부품 데이터시트 검색엔진 |
|
CD74HC251MT 데이터시트(PDF) 6 Page - Texas Instruments |
|
|
CD74HC251MT 데이터시트(HTML) 6 Page - Texas Instruments |
6 / 16 page 6 Test Circuits and Waveforms FIGURE 1. HC TRANSITION TIMES AND PROPAGATION DELAY TIMES, COMBINATION LOGIC FIGURE 2. HCT TRANSITION TIMES AND PROPAGATION DELAY TIMES, COMBINATION LOGIC FIGURE 3. HC THREE-STATE PROPAGATION DELAY WAVEFORM FIGURE 4. HCT THREE-STATE PROPAGATION DELAY WAVEFORM NOTE: Open drain waveforms tPLZ and tPZL are the same as those for three-state shown on the left. The test circuit is Output RL =1kΩ to VCC, CL = 50pF. FIGURE 5. HC AND HCT THREE-STATE PROPAGATION DELAY TEST CIRCUIT tPHL tPLH tTHL tTLH 90% 50% 10% 50% 10% INVERTING OUTPUT INPUT GND VCC tr = 6ns tf = 6ns 90% tPHL tPLH tTHL tTLH 2.7V 1.3V 0.3V 1.3V 10% INVERTING OUTPUT INPUT GND 3V tr = 6ns tf = 6ns 90% 50% 10% 90% GND VCC 10% 90% 50% 50% OUTPUT DISABLE OUTPUT LOW TO OFF OUTPUT HIGH TO OFF OUTPUTS ENABLED OUTPUTS DISABLED OUTPUTS ENABLED 6ns 6ns tPZH tPHZ tPZL tPLZ 0.3 2.7 GND 3V 10% 90% 1.3V 1.3V OUTPUT DISABLE OUTPUT LOW TO OFF OUTPUT HIGH TO OFF OUTPUTS ENABLED OUTPUTS DISABLED OUTPUTS ENABLED tr 6ns tPZH tPHZ tPZL tPLZ 6ns tf 1.3 IC WITH THREE- STATE OUTPUT OTHER INPUTS TIED HIGH OR LOW OUTPUT DISABLE VCC FOR tPLZ AND tPZL GND FOR tPHZ AND tPZH OUTPUT RL = 1kΩ CL 50pF CD54HC251, CD74HC251, CD54HCT251, CD74HCT251 |
유사한 부품 번호 - CD74HC251MT |
|
유사한 설명 - CD74HC251MT |
|
|
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 |