数据搜索系统,热门电子元器件搜索 |
|
74HC165DB 数据表(PDF) 4 Page - NXP Semiconductors |
|
74HC165DB 数据表(HTML) 4 Page - NXP Semiconductors |
4 / 22 page 74HC_HCT165_3 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 03 — 14 March 2008 4 of 22 NXP Semiconductors 74HC165; 74HCT165 8-bit parallel-in/serial out shift register 6.2 Pin description 7. Functional description [1] H = HIGH voltage level; h = HIGH voltage level one set-up time prior to the LOW-to-HIGH clock transition; L = LOW voltage level; l = LOW voltage level one set-up time prior to the LOW-to-HIGH clock transition; q = state of the referenced output one set-up time prior to the LOW-to-HIGH clock transition; X = don’t care; ↑ = LOW-to-HIGH clock transition. Table 2. Pin description Symbol Pin Description PL 1 asynchronous parallel load input (active LOW) CP 2 clock input (LOW-to-HIGH edge-triggered) Q7 7 complementary output from the last stage GND 8 ground (0 V) Q7 9 serial output from the last stage DS 10 serial data input D0 to D7 11, 12, 13, 14, 3, 4, 5, 6 parallel data inputs (also referred to as Dn) CE 15 clock enable input (active LOW) VCC 16 positive supply voltage Table 3. Function table[1] Operating modes Inputs Qn registers Outputs PL CE CP DS D0 to D7 Q0 Q1 to Q6 Q7 Q7 parallel load L XXXL L L to L L H L XXXH H H to H H L serial shift H L ↑ l X L q0 to q5 q6 q6 HL ↑ h X H q0 to q5 q6 q6 H ↑ L l X L q0 to q5 q6 q6 H ↑ L h X H q0 to q5 q6 q6 hold “do nothing” H H X X X q0 q1 to q6 q7 q7 H X H X X q0 q1 to q6 q7 q7 |
类似零件编号 - 74HC165DB |
|
类似说明 - 74HC165DB |
|
|
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 |