Shanghai Shuangling Electronics Co., Ltd. is a high-tech enterprise in Shanghai. It is the earliest specialized enterprise in China to develop and produce field-effect semiconductor devices. It has a broad market in the fields of aviation, communications, sensors, instrumentation and automation control.
The company's main products include diodes, junction field effect transistors, MOS field effect transistors and CC4000 series CMOS integrated circuits. "Shuangling brand three series of products have passed the national military standard GJB9001A-2001 quality management system certification", and have won the trust and praise of new and old customers with reliable quality and perfect service.
The company uses CAD computer-aided design system and 1.2um line width production process to help you realize your idea of circuit integration and specialization, making your products more competitive in the market.
"Shuangling" is committed to honest reputation and building an excellent brand" has always been the pursuit of Shuangling people.
PROGRAMMABLE TIMERProgrammable timer
Features
Product Name: PROGRAMMABLE TIMER
Product model: CC4541
product features:
1.16 STAGE BINARY COUNTER
2.LOW SYMMETR. OUTPUT RESISTANCE, TYPICALLY 100??at VDD = 15V
3.OSCILLATOR FREQUENCY RANGE : DC to 100KHz
4. AUTO OR MASTER RESET DISABLES OSCILLATOR DURING RESET TO REDUCE POWER DISSIPATION
5. OPERATES WITH VERY SLOW CLOCK RISE AND FALL TIMES
6.BUILT-IN LOW-POWER RC OSCILLATOR
7. EXTERNAL CLOCK (applied to pin 3) CAN BE USED INSTEAD OF OSCILLATOR
8. OPERATES AS FREQUENCY DIVIDER OR AS A SINGLE-TRANSITION TIMER
9.Q/Q SELECT PROVIDES OUTPUT LOGIC LEVEL FLEXIBILITY
10.CAPABLE OF DRIVING SIX LOW POWER TTL LOADS, THREE LOW POWER SCHOTTKY LOADS, OR SIX HTL LOADS OVER THE RATED TEMP. RANGE
11.5V, 10V AND 15V PARAMETRIC RATINGS
12.100% TESTED FOR QUIESCENT CURRENT AT 20V
13. MEETS ALL REQUIREMENTS OF JEDEC JESD13B ” STANDARD SPECIFICATIONS FOR DESCRIPTION OF B SERIES CMOS DEVICES”
Product Description:
The CC4541 is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor
technology available in DIP and SOP packages. This device is composed of a 16-stages binary counter, an oscillator controlled by 2 external resistors and a capacitor, an output control logic and an automatic power-on reset circuit. The counter varies on positive-edge clock transition and it can be cleared by the MASTER RESET input. The output from this timer is the Q or Q output from the 8th, 13th, or 16th counter stage.
The choice of the stage depends on the time select inputs A or B (see frequency selection table). The output is available in one of the two modes that can be selected via the MODE input pin 10 (see truth table). The output turns out as a continuos square wave, with a frequency equal to the oscillator frequency divided by . When this MODE input is a logic ”1”, when it is a logic ”0” and after a MASTER RESET is started, and Q output has been selected, the output goes up to a high state after counts. It remains in that state till another MASTER RESET pulse is apply or the mode input is a logic ”1”. The process starts by setting the AUTO RESET input (pin 5) to logic ”0” and switching power on. If pin 5 is set to logic ”1”, the AUTO RESET circuit is not enabled and counting cannot start till a positive MASTER RESET pulse is applied, returning to a low level. The AUTO RESET consumes a remarkable amount of power and should not be used if low power operation is wanted. The frequency of the oscillator depends on the RC network. It can be calculated using the following formula :f = 1 / 2.3 RTC CTC where f is between 1KHz and 100KHz and RS >10 K??and ?2 RTC
Product package:DIP
Embedded System
Electronics Design Contest
Embedded System
Analog electronics
Embedded System
stm32/stm8
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