数据搜索系统,热门电子元器件搜索 |
|
SN74F109D 数据表(PDF) 1 Page - Texas Instruments |
|
|
SN74F109D 数据表(HTML) 1 Page - Texas Instruments |
1 / 6 page SN54F109, SN74F109 DUAL J-K POSITIVE-EDGE-TRIGGERED FLIP-FLOPS WITH CLEAR AND PRESET SDFS047A – MARCH 1987 – REVISED OCTOBER 1993 Copyright © 1993, Texas Instruments Incorporated 2–1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 • Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs description These devices contain two independent J-K positive-edge-triggered flip-flops. A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs regardless of the levels of the other inputs. When PRE and CLR are inactive (high), data at the J and K input meeting the setup-time requirements are transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold time interval, data at the J and K inputs may be changed without affecting the levels at the outputs. These versatile flip-flops can perform as toggle flip-flops by grounding K and trying J high. They also can perform as D-type flip-flops if J and K are tied together. The SN54F109 is characterized for operation over the full military temperature range of – 55 °C to 125 °C. The SN74F109 is characterized for operation from 0 °C to 70°C. FUNCTION TABLE INPUTS OUTPUTS PRE CLR CLK J K Q Q L H X X X H L H LX X X L H L LX X X H† H† H H ↑ LL L H H H ↑ H L Toggle H H ↑ LH Q0 Q0 H H ↑ HH H L H H L X X Q0 Q0 † The output levels are not guaranteed to meet the minimum levels for VOH. Furthermore, thisconfigurationisnonstable; that is, it will not persist when PRE or CLR returns to its inactive (high) level. SN54F109 ...J PACKAGE SN74F109 ...D OR N PACKAGE (TOP VIEW) SN54F109 . . . FK PACKAGE (TOP VIEW) 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 2J 2K NC 2CLK 2PRE 1K 1CLK NC 1PRE 1Q NC – No internal connection 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1CLR 1J 1K 1CLK 1PRE 1Q 1Q GND VCC 2CLR 2J 2K 2CLK 2PRE 2Q 2Q PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
类似零件编号 - SN74F109D |
|
类似说明 - SN74F109D |
|
|
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 |