 |
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
|
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
DS75154M bảng dữ liệu(PDF) 1 Page - National Semiconductor (TI) |
|
|
|
|||||||||||||||||||||||||||||
DS75154M bảng dữ liệu(HTML) 1 Page - National Semiconductor (TI) |
|
|
1 / 8 page  DS75154 Quad Line Receiver General Description The DS75154 is a quad monolithic line receiver designed to satisfy the requirements of the standard interface between data terminal equipment and data communication equipment as defined by EIA Standard RS-232C. Other applications are in relatively short, single-line, point-to-point data transmis- sion systems and for level translators. Operation is normally from a single 5V supply; however, a built-in option allows op- eration from a 12V supply without the use of additional com- ponents. The output is compatible with most TTL and LS cir- cuits when either supply voltage is used. In normal operation, the threshold-control terminals are con- nected to the V CC1 terminal, pin 15, even if power is being supplied via the alternate V CC2 terminal, pin 16. This pro- vides a wide hysteresis loop which is the difference between the positive-going and negative-going threshold voltages. In this mode, if the input voltage goes to zero, the output volt- age will remain at the low or high level as determined by the previous input. For fail-safe operation, the threshold-control terminals are open. This reduces the hysteresis loop by causing the negative-going threshold voltage to be above zero. The positive-going threshold voltage remains above zero as it is unaffected by the disposition of the threshold terminals. In the fail-safe mode, if the input voltage goes to zero or an open-circuit condition, the output will go to the high level re- gardless of the previous input condition. Features n Input resistance, 3 k Ω to7kΩ over full RS-232C voltage range n Input threshold adjustable to meet “fail-safe” requirements without using external components n Inverting output compatible with TTL or LS n Built-in hysteresis for increased noise immunity n Output with active pull-up for symmetrical switching speeds n Standard supply voltage — 5V or 12V Schematic Diagram DS005795-1 Note: When using VCC1 (pin 15), VCC2 (pin 16) may be left open or shorted to VCC1. When using VCC2,VCC1 must be left open or connected to the threshold control pins. May 1998 © 1998 National Semiconductor Corporation DS005795 www.national.com |
Số phần tương tự - DS75154M |
|
Mô tả tương tự - DS75154M |
|
|
|
Link URL |
| Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Liên kết đến bảng dữ liệu | Trao đổi link | Tìm kiếm theo nhà sản xuất 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 |
Vietnamese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
