M48T08-150PC1TR STMICROELECTRONICS [STMicroelectronics], M48T08-150PC1TR Datasheet
M48T08-150PC1TR
Related parts for M48T08-150PC1TR
M48T08-150PC1TR Summary of contents
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... BCD CODED YEAR, MONTH, DAY, DATE, HOURS, MINUTES, and SECONDS TYPICAL CLOCK ACCURACY OF ±1 MINUTE A MONTH, AT 25°C AUTOMATIC POWER-FAIL CHIP DESELECT AND WRITE PROTECTION WRITE PROTECT VOLTAGES (V = Power-fail Deselect Voltage): PFD – M48T08 4.75 to 5.5V CC 4.5V V 4.75V PFD – M48T18/T08Y 4 ...
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... M48T08, M48T08Y, M48T18 TABLE OF CONTENTS FEATURES SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 1. 28-pin PCDIP, CAPHAT™ Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. 28-pin SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SUMMARY DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Figure 3. Logic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Table 1. Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Figure 4. DIP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 5. SOIC Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 6. Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 OPERATION MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Table 2. Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 READ Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 7 ...
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... Figure 18.SH – 4-pin SNAPHAT Housing for 120mAh Battery & Crystal, Package Outline . . . . . . 24 Table 15. SH – 4-pin SNAPHAT Housing for 120mAh Battery & Crystal, Package Mech. Data PART NUMBERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Table 16. Ordering Information Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Table 17. SNAPHAT Battery Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 REVISION HISTORY Table 18. Document Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 M48T08, M48T08Y, M48T18 3/27 ...
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... PROMs without any requirement for special WRITE timing or limitations on the number of WRITEs that can be performed. The 28-pin, 600mil DIP CAPHAT™ houses the M48T08/18/08Y silicon with a quartz crystal and a long- life lithium button cell in a single package. Figure 3. Logic Diagram V CC ...
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... A11 A10 DQ7 18 DQ6 17 DQ5 16 DQ4 15 DQ3 CLOCK CHAIN POWER V PFD AND SWITCHING CIRCUITRY INT M48T08, M48T08Y, M48T18 INT A12 A11 M48T08Y A2 8 ...
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... The information can be accessed by the user in the same manner as any other location in the static memory array. The M48T08/18/08Y also has its own Power-fail Detect circuit. The control circuitry constantly mon- itors the single 5V supply for an out of tolerance condition ...
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... READ Mode The M48T08/18/08Y is in the READ Mode when- ever W (WRITE Enable) is high, E1 (Chip Enable 1) is low, and E2 (Chip Enable 2) is high. The de- vice architecture allows ripple-through access of data from eight of 65,536 locations in the static storage array. Thus, the unique address specified by the 13 address inputs defines which one of the 8,192 bytes of data accessed ...
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... M48T08, M48T08Y, M48T18 Table 3. READ Mode AC Characteristics Symbol t READ Cycle Time AVAV t Address Valid to Output Valid AVQV t Chip Enable 1 Low to Output Valid E1LQV t Chip Enable 2 High to Output Valid E2HQV t Output Enable Low to Output Valid GLQV t Chip Enable 1 Low to Output Transition E1LQX ...
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... WRITE Mode The M48T08/18/08Y is in the WRITE Mode when- ever W, E1, and E2 are active. The start of a WRITE is referenced from the latter occurring fall- ing edge E1, or the rising edge of E2. A WRITE is terminated by the earlier rising edge E1, or the falling edge of E2. The addresses must be held valid throughout the cycle ...
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... M48T08, M48T08Y, M48T18 Figure 9. Chip Enable Controlled, WRITE AC Waveforms A0-A12 tAVE1L E1 tAVE2H E2 W DQ0-DQ7 10/27 tAVAV VALID tAVE1H tE1LE1H tAVE2L tE2HE2L tAVWL DATA INPUT tDVE1H tDVE2L tE1HAX tE2LAX tE1HDX tE2LDX AI00964B ...
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... Address Valid to Chip Enable 2 Low AVE2L t WRITE Enable High to Output Transition WHQX Note: 1. Valid for Ambient Operating Temperature: T (1) Parameter = 0 to 70° 4.75 to 5.5V or 4.5 to 5.5V (except where noted M48T08, M48T08Y, M48T18 M48T08/M48T18/T08Y –100/–10 (T08Y) –150/–15 (T08Y) Min Max Min Max 100 150 0 0 ...
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... CC lines is recommended. When V drops below switches power to the internal battery which pre- serves data and powers the clock. The internal button cell will maintain data in the M48T08/18/ 08Y for an accumulated period of at least 10 years when V is less than 12/27 Note: ...
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... Rolling Into the 21 Century Rollover. Data Year 10 M Month 10 Date Date Hours Hours Minutes Seconds Calibration M48T08, M48T08Y, M48T18 Table 5. must be written to '0' st Century” for information on Function/Range BCD Format D1 D0 Year Month Date Day Day Hours Minutes Seconds Control Ta- ® ...
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... The STOP Bit (ST) is the MSB of the seconds register. Setting '1' stops the oscillator. The M48T08/18/08Y (in the PCDIP28 package) is shipped from STMi- croelectronics with the STOP Bit set to a '1.' When reset to a '0,' the M48T08/18/08Y oscillator starts within one second ...
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... Figure 10. Crystal Accuracy Across Temperature ppm 20 0 -20 -40 -60 -80 -100 0 5 Figure 11. Clock Calibration NORMAL POSITIVE CALIBRATION NEGATIVE CALIBRATION F = -0.038 ppm 10 M48T08, M48T08Y, M48T18 AI02124 AI00594B 15/27 ...
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... M48T08, M48T08Y, M48T18 V Noise And Negative Going Transients CC I transients, including those produced by output CC switching, can produce voltage fluctuations, re- sulting in spikes on the V bus. These transients CC can be reduced if capacitors are used to store en- ergy which stabilizes the V CC stored in the bypass capacitors will be released as low going spikes are generated or energy will be absorbed when overshoots occur ...
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... CAUTION: Do NOT wave solder SOIC to avoid damaging SNAPHAT sockets. not implied. Exposure to Absolute Maximum Rat- ing conditions for extended periods may affect de- vice reliability. STMicroelectronics SURE Program and other rel- evant quality documents. Parameter Off, Oscillator Off) CC M48T08, M48T08Y, M48T18 Refer also to the Value Unit °C – ° ...
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... M48T08, M48T08Y, M48T18 DC AND AC PARAMETERS This section summarizes the operating and mea- surement conditions, as well as the DC and AC characteristics of the device. The parameters in the following DC and AC Characteristic tables are derived from tests performed under the Measure- Table 7. Operating and AC Measurement Conditions Parameter ...
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... OUT CC Outputs open IH – 0.2V 0. 2.1mA OL ( 0.5mA –1mA 70° 4.75 to 5.5V or 4.5 to 5.5V (except where noted M48T08, M48T08Y, M48T18 M48T08/M48T18/T08Y Unit Min Max ±1 µA ±1 µ –0.3 0 0.3 2 0 ...
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... M48T08, M48T08Y, M48T18 Figure 14. Power Down/Up Mode AC Waveforms PFD (max) V PFD (min tPD INT INPUTS RECOGNIZED OUTPUTS VALID (PER CONTROL INPUT) Note: Inputs may or may not be recognized at this time. Caution should be taken to keep E1 high or E2 low as V Some systems may perform inadvertent WRITE cycles after V Even though a power on reset is being applied to the processor, a reset condition may not occur until after the system clock is running ...
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... Min Max 8.89 9.65 0.38 0.76 8.38 8.89 0.38 0.53 1.14 1.78 0.20 0.31 39.37 39.88 17.83 18.34 2.29 2.79 29.72 36.32 15.24 16.00 3.05 3.81 28 M48T08, M48T08Y, M48T18 C eA PCDIP inches Typ Min Max 0.350 0.380 0.015 0.030 0.330 0.350 0.015 0.021 0.045 0.070 0.008 0.012 1.550 1.570 0.702 0.722 0.090 0.110 1.170 1.430 0.600 0.630 0.120 0.150 28 21/27 ...
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... M48T08, M48T08Y, M48T18 Figure 16. SOH28 – 28-lead Plastic Small Outline, 4-socket battery SNAPHAT, Package Outline SOH-A Note: Drawing is not to scale. Table 13. SOH28 – 28-lead Plastic SO, 4-socket battery SNAPHAT, Package Mech. Data Symb Typ 1. ...
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... Table 14. SH – 4-pin SNAPHAT Housing for 48mAh Battery & Crystal, Package Mech. Data Symb Typ Min Max 9.78 6.73 7.24 6.48 6.99 0.38 0.46 0.56 21.21 21.84 14.22 14.99 15.55 15.95 3.20 3.61 2.03 2.29 M48T08, M48T08Y, M48T18 SHTK-A inches Typ Min Max 0.385 0.265 0.285 0.255 0.275 0.015 0.018 0.022 0.835 0.860 0.560 0.590 0.612 0.628 0.126 0.142 0.080 0.090 A2 23/27 ...
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... M48T08, M48T08Y, M48T18 Figure 18. SH – 4-pin SNAPHAT Housing for 120mAh Battery & Crystal, Package Outline Note: Drawing is not to scale. Table 15. SH – 4-pin SNAPHAT Housing for 120mAh Battery & Crystal, Package Mech. Data Symb Typ 24/27 A1 ...
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... TR = Tape & Reel (Not for New Design - Use F) For PCDIP28: blank = ECOPACK Package, Tubes Note: 1. The M48T08/18 part is offered with the PCDIP28 (e.g., CAPHAT™) package only. 2. The SOIC package (SOH28) requires the SNAPHAT “M4TXX-BR12SH” in plastic tube or “M4TXX-BR12SHTR” in Tape & Reel form (see SOH28 (SNAPHAT) package only. Caution: Do not place the SNAPHAT battery package “ ...
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... Reference to App. Note corrected in “Calibrating the Clock” section 21-Dec-01 3.2 Changes to text in document to reflect addition of M48T08Y option 06-Mar-02 3.3 Fix Ordering Information table and add to footnote (Table 16) 20-May-02 3.4 Modify reflow time and temperature footnotes (Table 6) t 29-Aug-02 3 ...
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