công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
STM6719 bảng dữ liệu(PDF) 8 Page - STMicroelectronics |
|
STM6719 bảng dữ liệu(HTML) 8 Page - STMicroelectronics |
8 / 30 page Description STM6717/6718/6719/6720/STM6777/6778/6779/6780 8/30 Doc ID 11469 Rev 8 VCC1. It can be driven from a TTL or CMOS logic line, or with open drain/collector outputs, or connected to VSS through a switch. If unused, leave this pin open or connect it to VCC1. Connect a normally open momentary switch from MR to VSS; external debounce circuitry is not required. (If MR is driven from long cables or if the device is used in noisy environments, connecting a 0.1µF capacitor from MR to VSS provides additional noise immunity. 1.1.4 Manual reset delay input (MRC) - STM6777/78/79/80) This pin is either left open or connected to VSS via a capacitor. By selecting the appropriate capacitor, the manual reset process, initiated by pressing the push-button manual reset input, can be delayed by any value from 6 µs or more (see Table 7 on page 21). 1.1.5 Primary supply voltage monitoring input (VCC1) It also is the input for the primary reset threshold monitor. Available fixed (customer- selectable, factory-programmed) reset thresholds include 4.63 V to 1.58 V. 1.1.6 Secondary supply voltage monitoring input (VCC2) This function is available on the STM6717/18/19/20/77/78. Fixed (customer-selectable, factory-programmed) reset thresholds include 3.08 V to 0.79 V. 1.1.7 Adjustable reset comparator input (RSTIN; STM6719/20/79/80) This is a high impedance input. RST is driven low when the voltage at the RSTIN pin falls below 0.626 V (internal reference voltage at this comparator). The monitored voltage reset threshold is set with an external resistor-divider network. Table 3. Pin functions Pin Name Function STM6717 STM6718 STM6719 STM6720 STM6777 STM6778 STM6779 STM6780 1111 RST Active-low reset output 3333 MR Push-button reset input — — 5 4 MRC Manual reset delay input 5666 VCC1 Primary supply voltage input 444 — VCC2 Secondary supply voltage input — 5 — 5 RSTIN Adjustable reset comparator input 2222 VSS Ground |
Số phần tương tự - STM6719 |
|
Mô tả tương tự - STM6719 |
|
|
Link URL |
Chính sách bảo mật |
ALLDATASHEET.VN |
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 | 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 |