DS1077LU-50+ Maxim Integrated Products, DS1077LU-50+ Datasheet
DS1077LU-50+
Specifications of DS1077LU-50+
Related parts for DS1077LU-50+
DS1077LU-50+ Summary of contents
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... GND - Ground CTRL1 - Control Pin for OUT1 CTRL0 - Control Pin for OUT0 SDA - 2-Wire Serial Data Input/Output SCL - 2-Wire Serial Clock ORDERING INFORMATION Note: XXX denotes frequency option DS1077LZ-XXX 8-pin 150mil SO DS1077LU-XXX 8-pin 118mil µSOP DS1077L 8 SCL 7 SDA 6 CTRL1 5 CTRL0 011006 ...
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BLOCK DIAGRAM DS1077L Figure 1 INTERNAL OSCILLATOR DIV1 0M1 0M0 1M1 1M0 EN0 SEL0 PDN0 PDN1 CONTROL REGISTERS 2-WIRE INTERFACE SDA SCL MCLK MUX P0 PRESCALER (M DIVIDER) 0M1 0M0 P1 PRESCALER (M DIVIDER) Power-Down 1M1 1M0 PDN1 2 of ...
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OVERVIEW A block diagram of the DS1077L is shown in Figure 1. The DS1077L consists of four major components: 1) internal master oscillator, 2) prescalers, 3) programmable divider, and 4) control registers. The internal oscillator is factory trimmed to provide ...
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TABLE 1 EN0 SEL0 PDN0 (BIT) (BIT) (BIT *This mode is for applications where OUT0 is not used, but CTRL0 is used ...
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TABLE 3 PDN0 PDN1 (BIT) (BIT *CTRL0 performs a power-down if SEL0 and EN0 are both 0. (See Table 1.) Serial Data Input/Output (SDA) – Input/output pin for the 2-wire serial interface ...
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EN0 (bit) If EN0 = 1 and PDN0 = 0, the CTRL0 pin functions as an output enable for OUT0, the frequency of the output is determined by the SEL0 bit. If PDN0 = 1, the EN0 bit is ignored, ...
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TABLE 5 BIT VALUE DIVISOR ( 000 000 000 001 — — — — 1 111 111 111 *Default Condition BUS WORD NAME — Factory Default 0* *These bits are reserved and must ...
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Accordingly, the following bus conditions have been defined: Bus not busy: Both data and clock lines remain high. Start data transfer: A change in the state of the data line from high to low while the clock is high defines ...
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Figure 2 details how data transfer is accomplished on the 2-wire bus. Depending upon the state of the R/W bit, two types of data transfer are possible: 1) Data transfer from a master transmitter to a slave receiver. The first ...
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SERIAL COMMUNICATION WITH DS1077L Figure 3 Send a “Standalone” Command SCL SDA Start Address Byte DS1077L Write MSB of a Two-Byte Register SCL SDA ...
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SERIAL COMMUNICATION WITH DS1077L Figure 3 (cont.) Read Single Byte Register or MSB from a Two-Byte Register SCL SDA Start Control Byte DS1077L ACK Read from a Two-Byte ...
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COMMAND SET Data and control information is read from and written to the DS1077L in the format shown in Figure 3. To write to the DS1077L, the master will issue the slave address of the DS1077L and the R/ 0. ...
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ABSOLUTE MAXIMUM RATINGS Voltage on Any Pin Relative to Ground Operating Temperature Range Programming Temperature Range Storage Temperature Range Soldering Temperature DC ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL Supply Voltage High-Level Output Voltage (OUT1, OUT0) Low-Level Output Voltage (OUT1, OUT0) High-Level Input ...
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AC ELECTRICAL CHARACTERISTICS PARAMETER Output Frequency Tolerance (from Nominal) Combined Freq. Variation (from Nominal) Output Frequency Min Output Frequency Max Power-Up Time Enable OUT1 from CTRL1 Enable OUT0 from CTRL0 OUT1 Hi-Z from CTRL1 OUT0 Hi-Z from CTRL0 Load Capacitance ...
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AC ELECTRICAL CHARACTERISTICS: 2-WIRE INTERFACE PARAMETER SYMBOL SCL Clock Frequency Bus Free Time Between a STOP and START Condition Hold Time (Repeated) START Condition. LOW Period of SCL HIGH Period of SCL Setup Time for a Repeated START Data Hold ...
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NOTES: 1) All voltages are referenced to ground. 2) 4.87kHz is obtained from a -40MHz standard part. 3) Output voltage swings may be impaired at high frequencies combined with high output loading. 4) After this period, the first clock pulse ...
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TYPICAL OPERATING CHARACTERISTICS 2 3.3V SUPPLY CURRENT vs. TEMPERATURE TEMPERATURE (C) SUPPLY ...
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TYPICAL OPERATING CHARACTERISTICS (cont.) 3.4 3.2 3 2.8 2.6 2.4 2 4.5 4 3 3.3V +25ºC, unless otherwise specified SUPPLY CURRENT vs. DIVISOR (FREQUENCY) 100 200 300 400 ...
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TYPICAL OPERATING CHARACTERISTICS (cont.) 0.880 0.860 0.840 0.820 0.800 0.780 0.760 0 1 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0 3.3V +25ºC, unless otherwise specified DS1077L SHUTDOWN CURRENT vs. TEMPERATURE ...
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TYPICAL OPERATING CHARACTERISTICS (cont.) 1 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0 3.3V +25ºC, unless otherwise specified DS1077L VOLTCO 2.8 2.9 3.0 3.1 SUPPLY VOLTAGE ( -66 ...