Electronic Components Datasheet Search |
|
83CXXX Datasheet(PDF) 4 Page - Unisonic Technologies |
|
83CXXX Datasheet(HTML) 4 Page - Unisonic Technologies |
4 / 6 page 83CXXX Preliminary CMOS IC UNISONICTECHNOLOGIESCO.,LTD 4 of 6 www.unisonic.com.tw QW-R502-353.a DETAILED DESCRIPTION The UTC 83CXXX have a push-pull output stage. A microprocessor’s (µP’s) reset input initiates the microprocessor in a known state. The UTC 83CXXX assert a reset signal as long as the VCC power supply voltage drops below a preset threshold. When VCC has risen over the reset threshold, the devices keep the signal for at least 140ms. They have a function of preventing code-execution errors during power-up, power-down, or brownout conditions by resetting. See the manual reset input section if you want to see function that the manual reset input ( MR ) can initiate a reset. Manual Reset Input Many products based on microprocessor need manual reset characteristic, allowing them to initiate a reset. Reset keeps working while MR is low, and when MR returns high it is for the reset Active Timeout Period (tRP). TTL or CMOS-logic levels, or with open-drain / collector outputs both can drive MR . MR will be started by a logic low on manual reset .Because the input has a build-in 20kΩ pull-up resistor; it can be left open if it is not used. We can put a 0.1µF capacitor from MR to ground if MR is driven from long cables or the device is used in a noisy environment strengthening additional noise capacity. Connecting a normally open momentary switch from MR to ground to create a manual-reset function, and external debounce circuitry is not required. UTC 83CXXX VCC GND RESET R1= 100K Figure 1. RESET Valid to VCC = Ground Circuit |
Similar Part No. - 83CXXX |
|
Similar Description - 83CXXX |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List 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 |