数据搜索系统,热门电子元器件搜索 |
|
74F8963 数据表(PDF) 5 Page - NXP Semiconductors |
|
74F8963 数据表(HTML) 5 Page - NXP Semiconductors |
5 / 10 page Philips Semiconductors FAST Products Product specification 74F8962/8963 9-Bit latched bidirectional Futurebus transceivers (open-collector) March 11, 1993 5 FUNCTION TABLE FOR 74F8962 INPUTS LATCH STATES OUTPUTS OPERATING MODE AIn Bn* LEAB LEBA OEAB OEBA AB BA AOn Bn H H L L H H H H Z X L L L L H H L L Z X B and AO disabled X X H H H H Qn Qn Z X H – L X L H H Qn Z L AO 3–state, transparent data from AI to B L – L X L H L Qn Z H** X H X L H L Qn H L X B disabled, transparent data from B to AO X L X L H L Qn L H X X X H X L H Qn Qn Z Qn AO 3–state, latched data to B X X X H H L Qn Qn Qn X B disabled, latched to AO X X H H L L Qn Qn Qn Qn Latched state to AO and B H – L L L L H L H L Read back from AI to B to AO L – L L L L L H L H** (both latches transparent) Notes to function table for 74F8962 1. H = High voltage level 2. L = Low voltage level 3. X = Don’t care 4. – = Input not externally driven 5. Z = High impedance ”off’ state 6. Qn = High or low voltage level one setup time prior to the low–to–high LEXX transition. 7. H**= Goes to level of pullup voltage. 8. B* = Precaution should be taken to insure B inputs do not float. If they do they are equal to low state. FUNCTION TABLE FOR 74F8963 INPUTS LATCH STATES OUTPUTS OPERATING MODE AIn Bn* LEAB LEBA OEAB OEBA AB BA AOn Bn H H L L H H L L Z X L L L L H H H H Z X B and AO disabled X X H H H H Qn Qn Z X H – L X L H L Qn Z H AO 3–state, transparent data from AI to B L – L X L H H Qn Z L X H X L H L Qn L H X B disabled, transparent data from B to AO X L X L H L Qn H L X X X H X L H Qn Qn Z Qn AO 3–state, latched data to B X X X H H L Qn Qn Qn X B disabled, latched to AO X X H H L L Qn Qn Qn Qn Latched state to AO and B H – L L L L L L H H** Read back from AI to B to AO L – L L L L H L L L (both latches transparent) Notes to function table for 74F8963 1. H = High voltage level 2. L = Low voltage level 3. X = Don’t care 4. – = Input not externally driven 5. Z = High impedance ”off” state 6. Qn = High or low voltage level one setup time prior to the low–to–high LEXX transition. 7. H**= Goes to level of pullup voltage. 8. B* = Precaution should be taken to insure B inputs do not float. If they do they are equal to low state. |
类似零件编号 - 74F8963 |
|
类似说明 - 74F8963 |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 链接交换 | 制造商名单 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 |