RTC58321 EPSON Electronics, RTC58321 Datasheet
RTC58321
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RTC58321 Summary of contents
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Hotlines: Tel (02) 2434 2200 - - - Fax (02) 2434 3200 ...
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Overview .............................................................................................................................................. 1 n Features............................................................................................................................................... 1 n Pin connections .................................................................................................................................. 1 n Block diagram ..................................................................................................................................... 1 n Pin functions ....................................................................................................................................... 1 n Characteristics .................................................................................................................................... 1 1. Absolute maximum ratings ........................................................................................................................ 1 2. Operating Conditions................................................................................................................................. 1 3. Frequency characteristics .......................................................................................................................... ...
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REAL TIME CLOCK MODULE with I/O CONNECTIONS RTC-58321/58323 n Overview The RTC-58321/58323 is a CMOS real time clock modules with perpetual calendar function developed for microcomputer applications. It has a built-in 32.768 kHz quartz resonator, and provides clock and ...
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RTC-58321/58323 n Block diagram 32.768 kHz quarts oscillator 15 1/2 BUSY OSC R BUSY N STOP R 1’ TEST R 1’ WRITE R 1’ READ R 1’ CS1 R 1’ CS2 R 1’ ADDRESS WRITE R 1’ ...
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Characteristics 1. Absolute maximum ratings Item Symbol Power supply voltage V DD Input voltages V Output voltages V Storage temperature T STG Soldering temperature T SOL 2. Operating Conditions Item Power supply Data hold voltage *1 Operating RTC-58321 temperature ...
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RTC-58321/58323 4. DC characteristics Item High input voltage Low input voltage Low output voltage Low output current High input current Low input current Input leakage current Input off-state leakage current Input capacity Current consumption Oscillation start time *6 *1 Pins ...
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Timing chart Address write Write Read Address bus in IC Data bus Data hold timing CDR 1 V IH2 can ...
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RTC-58321/58323 n Registers 1. Register table Address (hexadecimal ...
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Reset register (Control register D) Select this register to reset the last five stages of the 1/2 Latch the hexadecimal value D using the ADDRESS LATCH pin, and set WRITE high to carry out the reset. 3. Reference signal ...
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... RTC-58321/58323 n Marking layout RTC58321 B EPSON 4162 C Logo Note: The illustration is a general representation of the content and the location of information on the label, and is not a detailed specification of the typeface, size or positioning of printing used on the label. n Application notes (1) In order to realize low-power operation, the device has a high impedance; the shaded portion in the figure below is highly susceptible to inductance effects, and should be kept clear of signal lines ...
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