数据搜索系统,热门电子元器件搜索 |
|
74HC221N 数据表(PDF) 4 Page - NXP Semiconductors |
|
74HC221N 数据表(HTML) 4 Page - NXP Semiconductors |
4 / 15 page December 1990 4 Philips Semiconductors Product specification Dual non-retriggerable monostable multivibrator with reset 74HC/HCT221 Fig.4 Functional diagram. FUNCTION TABLE Notes 1. H = HIGH voltage level L = LOW voltage level X = don’t care ↑ = LOW-to-HIGH level ↓ = HIGH-to-LOW level = one HIGH-level output pulse = one LOW-level output pulse 2. If the monostable was triggered before this condition was established the pulse will continue as programmed. 3. For this combination the reset input must be LOW and the following sequence must be used: pin 1 (or 9) must be set HIGH or pin 2 (or 10) set LOW; then pin 1 (or 9) must be LOW and pin 2 (or 10) set HIGH. Now the reset input goes from LOW-to-HIGH and the device will be triggered. INPUTS OUTPUTS nRD nAnB nQ nQ LX X L H XH X L (2) H (2) XX L L (2) H (2) HL ↑ H ↓ H ↑ LH (3) (3) |
类似零件编号 - 74HC221N |
|
类似说明 - 74HC221N |
|
|
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 |