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MCP4716 датащи(PDF) 69 Page - Microchip Technology |
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MCP4716 датащи(HTML) 69 Page - Microchip Technology |
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69 / 86 page ![]() © 2011 Microchip Technology Inc. DS22272A-page 69 MCP4706/4716/4726 8.8 Serial Interface Communication Times Table 8-1 shows time/frequency of the supported operations of the I2C serial interface for the different serial interface operational frequencies. This, along with the VOUT output performance (such as slew rate), would be used to determine your applications volatile DAC register update rate. TABLE 8-1: SERIAL INTERFACE TIMES / FREQUENCIES Command Writes Volatile Memory? Writes EEPROM Memory? # of Serial Interface bits (2) Command Time (uS) Command Frequency (kHz) Code Function C2 C1 C0 Config. DAC Config. DAC 100kHz 400kHz 3.4MHz100kHz 400kHz 3.4MHz 00 X Write Volatile DAC Yes(1) Yes No No 29 290 72.5 8.5 3.4 13.8 117.2 01 0 Write Volatile Memory Yes Yes No No 38 380 95 11.2 2.6 10.5 89.5 01 1 Write All Memory Yes Yes Yes Yes 38 380 95 11.2 2.6 10.5 89.5 10 0 Write NV Configuration Bits Yes No No No 20 200 50 5.9 5.0 20.0 170.0 N.A. Read N.A. N.A. N.A. N.A. 77 750 187.5 22.1 1.3 5.3 45.3 Note 1: Only the volatile PD1:PD0 bits of the Configuration bits are written. 2: Includes the Start or Stop bits. |
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