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CY8C27x43 Datasheet(PDF) 4 Page - Cypress Semiconductor |
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CY8C27x43 Datasheet(HTML) 4 Page - Cypress Semiconductor |
4 / 37 page CY8C23433, CY8C23533 Document Number: 001-44369 Rev. *B Page 4 of 37 Additional System Resources System Resources, some of which are listed in the previous sections, provide additional capability useful to complete systems. Additional resources include a multiplier, decimator, low voltage detection, and power on reset. Brief statements describing the merits of each system resource follow: ■ Digital clock dividers provide three customizable clock frequencies for use in applications. The clocks can be routed to both the digital and analog systems. Additional clocks can be generated using digital PSoC blocks as clock dividers. ■ A multiply accumulate (MAC) provides a fast 8-bit multiplier with 32-bit accumulate, to assist in both general math and digital filters. ■ The decimator provides a custom hardware filter for digital signal processing applications including the creation of Delta Sigma ADCs. ■ The I2C module provides 100 and 400 kHz communication over two wires. Slave, master, and multi-master modes are all supported. ■ Low Voltage Detection (LVD) interrupts can signal the application of falling voltage levels, while the advanced POR (Power On Reset) circuit eliminates the need for a system supervisor. ■ An internal 1.3V reference provides an absolute reference for the analog system, including ADCs and DACs. PSoC Device Characteristics Depending on the PSoC device characteristics, the digital and analog systems can have 16, 8, or 4 digital blocks and 12, 6, or 3 analog blocks. The following table lists the resources available for specific PSoC device groups. Getting Started The quickest path to understanding the PSoC silicon is by reading this data sheet and using the PSoC Designer Integrated Development Environment (IDE). This data sheet is an overview of the PSoC integrated circuit and presents specific pin, register, and electrical specifications. For in-depth information, along with detailed programming information, refer the PSoC Mixed-Signal Array Technical Reference Manual. For latest Ordering, Packaging, and Electrical Specification information, refer the latest PSoC device data sheets on the web at http://www.cypress.com/psoc. To determine which PSoC device meets your requirements, navigate through the PSoC Decision Tree in the Application Note AN2209 at http://www.cypress.com and select Application Notes under the Design Resources. Development Kits Development Kits are available from the following distributors: Digi-Key, Avnet, Arrow, and Future. The Cypress Online Store contains development kits, C compilers, and all accessories for PSoC development. Go to the Cypress Online Store web site at http://www.cypress.com/onlinestore. Technical Training Modules Free PSoC technical training modules are available for users new to PSoC. Training modules cover designing, debugging, advanced analog and CapSense. Go to http://www.cypress.com. Consultants Certified PSoC Consultants offer everything from technical assistance to completed PSoC designs. To contact or become a PSoC Consultant go to http://www.cypress.com, click on Design Support located at the top of the web page, and select CYPros Consultants. Technical Support PSoC application engineers take pride in fast and accurate response. They can be reached with a 4-hour guaranteed response at http://www.cypress.com/support. Application Notes A long list of application notes can assist you in every aspect of your design effort. To view the PSoC application notes, go to http://www.cypress.com/psocapnotes. Table 1. PSoC Device Characteristics PSoC Part Number CY8C29x66 up to 64 4 16 12 4 4 12 No CY8C27x43 up to 44 2 8 12 4 4 12 No CY8C24x94 56 1 4 48 2 2 6 No CY8C23X33 up to 26 1 4 12 2 2[1] 4 Yes CY8C24x23A up to 24 1 4 12 22 6No CY8C21x34 up to 28 14 28 0 2 4[2] No CY8C21x23 16 1 4 8 0 2 4[2] No CY8C20x34 up to 28 0 0 28 0 0 3[3] No Notes 1. One complete column, plus one Continuous Time Block. 2. Limited analog functionality . 3. Two analog blocks and one CapSense. [+] Feedback |
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