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CY8C24223A-24PVXI Datasheet(PDF) 5 Page - Cypress Semiconductor |
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CY8C24223A-24PVXI Datasheet(HTML) 5 Page - Cypress Semiconductor |
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5 / 65 page  CY8C24123A CY8C24223A CY8C24423A Document Number: 38-12028 Rev. *R Page 5 of 65 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, switch-mode pump, low-voltage detection, and power-on-reset (POR). 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 may 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 are supported. ■ Low-voltage detection (LVD) interrupts can signal the appli- cation of falling voltage levels, while the advanced POR circuit eliminates the need for a system supervisor. ■ An internal 1.3 V reference provides an absolute reference for the analog system, including ADCs and DACs. ■ An integrated switch-mode pump generates normal operating voltages from a single 1.2 V battery cell, providing a low cost boost converter. PSoC Device Characteristics Depending on your PSoC device characteristics, the digital and analog systems can have 16, 8, or 4 digital blocks, and 12, 6, or 4 analog blocks. Table 1 on page 5 lists the resources available for specific PSoC device groups. The PSoC device covered by this datasheet is highlighted in this table. Table 1. PSoC Device Characteristics PSoC Part Number Digital I/O Digital Rows Digital Blocks Analog Inputs Analog Outputs Analog Columns Analog Blocks SRAM Size Flash Size CY8C29x66 up to 64 4 16 up to 12 4 4 12 2 K 32 K CY8C28xxx up to 44 up to 3 up to 12 up to 44 up to 4 up to 6 up to 12 + 4[1] 1 K 16 K CY8C27x43 up to 44 2 8 up to 12 4 4 12 256 16 K CY8C24x94 up to 56 1 4 up to 48 2 2 6 1 K 16 K CY8C24x23A up to 24 1 4 up to 12 2 2 6 256 4 K CY8C23x33 up to 26 1 4 up to 12 2 2 4 256 8 K CY8C22x45 up to 38 2 8 up to 38 0 4 6[1] 1 K 16 K CY8C21x45 up to 24 1 4 up to 24 0 4 6[1] 512 8 K CY8C21x34 up to 28 1 4 up to 28 0 2 4[1] 512 8 K CY8C21x23 up to 16 1 4 up to 8 0 2 4[1] 256 4 K CY8C20x34 up to 28 0 0 up to 28 0 0 3[1,2] 512 8 K CY8C20xx6 up to 36 0 0 up to 36 0 0 3[1,2] up to 2 K up to 32 K Notes 1. Limited analog functionality. 2. Two analog blocks and one CapSense®. |
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