ISL1220IUZ-T Intersil, ISL1220IUZ-T Datasheet
ISL1220IUZ-T
Specifications of ISL1220IUZ-T
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ISL1220IUZ-T Summary of contents
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... RANGE ISL1220IUZ 1220Z 2.7V to 5.5V - MSOP ISL1220IUZ-T 1220Z 2.7V to 5.5V - MSOP NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations ...
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Block Diagram SDA SDA BUFFER SCL SCL BUFFER X1 CRYSTAL OSCILLATOR TRIP V BAT GND Pin Descriptions PIN NUMBER SYMBOL 1 X1 The X1 pin is the input of an inverting amplifier and is intended to ...
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Absolute Maximum Ratings Voltage SCL, SDA, and IRQ BAT (respect to ground ...
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Serial Interface Specifications SYMBOL PARAMETER V SDA and SCL Input Buffer HIGH IH Voltage Hysteresis SDA and SCL Input Buffer Hysteresis V SDA Output Buffer LOW Voltage, OL Sinking 3mA Cpin SDA and SCL Pin Capacitance f SCL Frequency SCL ...
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SDA vs SCL Timing SCL t SU:STA t HD:STA SDA (INPUT TIMING) SDA (OUTPUT TIMING) Symbol Table WAVEFORM INPUTS Must be steady May change from LOW to HIGH May change from HIGH to LOW Don’t Care: Changes Allowed N/A 5 ...
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Typical Performance Curves 1E-6 900E-9 800E-9 700E-9 600E-9 500E-9 400E-9 300E-9 200E-9 100E-9 000E+0 1.5 2.0 2.5 3.0 3.5 4.0 V (V) BAT FIGURE BAT 2.4E-06 2.2E- 2.0E-06 1.8E-06 1.6E- ...
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... Functional Description Power Control Operation The power control circuit accepts a V Many types of batteries can be used with Intersil RTC products. For example, 3.0V or 3.6V Lithium batteries are appropriate, and battery sizes are available that can power the ISL1220 for years. Another option is to use a ...
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Super Cap for applications where month. See the Applications Section for more information. Normal Mode ( Battery Backup Mode BAT To transition from the mode, both of the ...
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Accuracy of the Real Time Clock The accuracy of the Real Time Clock depends on the frequency of the quartz crystal that is used as the ...
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Write capability is allowable into the RTC registers (00h to 06h) only when the WRTC bit (bit 4 of address 07h) is set to “1”. A multi-byte read or write operation is limited to one section per operation. Access to ...
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Real Time Clock Registers Addresses [00h to 06h] RTC REGISTERS (SC, MN, HR, DT, MO, YR, DW) These registers depict BCD representations of the time. As such, SC (Seconds) and MN (Minutes) range from 0 to 59, HR (Hour) can ...
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NOTE: Writing to register 08h has restrictions byte writes to register 08h are allowed, only page writes beginning with register 07h >V , then a byte write to register 08h IS DD BAT allowed, as well ...
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C is changed via two digitally LOAD controlled capacitors, C and C , connected from the and X2 pins to ground (see Figure 11). The value given by the following formula: ...
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Below are examples of both Single Event and periodic Interrupt Mode alarms. Example 1 – Alarm set with single interrupt (IM = ”0”) A single alarm will occur on January 1 at 11:30am. A. Set Alarm registers as follows: BIT ...
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SDA line LOW to acknowledge the reception of the eight bits of data (See Figure 13). The ISL1220 responds with an ACK after recognition of a START condition followed by a valid Identification Byte, and SCL SDA ...
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Device Addressing Following a start condition, the master must output a Slave Address Byte. The 7 MSBs are the device identifier. These bits are “1101111”. Slave bits “1101” access the register. Slave bits “111” specify the device select bits. The ...
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Application Section Oscillator Crystal Requirements The ISL1220 uses a standard 32.768kHz crystal. Either through hole or surface mount crystals can be used. Table 7 lists some recommended surface mount crystals and the parameters of each. This list is not exhaustive ...
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Fairly accurate temperature compensation can be implemented just by using the crystal manufacturer’s specifications for the turnover temperature T and the drift coefficient (β). The ...
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For a robust design, a margin of 30% should be included to cover supply current and capacitance tolerances over the results of the calculations. Even more margin ...
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... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...