STM6315 STMicroelectronics, STM6315 Datasheet
STM6315
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STM6315 Summary of contents
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... Guaranteed RST assertion down 1.0V CC ■ Open drain RST output can exceed V ■ Power supply transient immunity ■ Operating temperature: –40 to +125°C ■ Available in SOT143-4 package. March 2007 Open drain microprocessor reset CC Rev 5 STM6315 SOT143-4 (W1) 1/21 www.st.com 1 ...
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Contents 1 Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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List of tables Table 1. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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List of figures Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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... Summary description The STM6315 Microprocessor Reset Circuit is a low power supervisory device used to monitor power supplies. It performs a single function: asserting a reset signal whenever the V supply voltage drops below a preset value and keeping it asserted until V CC above the preset threshold for a minimum period of time (t reset input (MR) ...
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... Figure 3. Block diagram RST MR Figure 4. Hardware hookup V CC Manual Reset 1. Open drain RST output requires external pull-up resistor. 6/21 COMPARE DEBOUNCE V CC 10k STM6315 RST (1) RESET MR Input rec RST Generator AI11164 V CC MCU V SS AI11165 ...
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... The STM6315 is relatively immune to negative-going V page 11 shows typical transient duration versus reset comparator overdrive (for which the STM6315 will NOT generate a reset pulse). The graph was generated using a negative pulse applied the magnitude indicated (Reset Threshold Overdrive). The graph indicates the maximum ...
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Valid RST output down to V When V falls below 1V, the RST output no longer sinks current, but becomes an open CC circuit. In most systems this is not a problem, as most MCUs do not operate below ...
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Typical operating characteristics Note: Typical values are at T Figure 7. Supply current vs. supply voltage, V 3.00 2.75 2.50 2.25 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 0.0 0.5 1.0 Figure 8. Supply current vs. temperature ...
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Figure 9. RST output voltage vs. output current, V 0.20 0.16 0.12 0.08 0. Figure 10. Normalized reset time-out period vs. temperature 1.14 1.12 1.10 1.08 1.06 1.04 1.02 1.00 0.98 –40 –20 10/21 = 4.25V CC 3 ...
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Figure 11. Normalized reset threshold vs. temperature 1.01 1.005 1 0.995 0.99 –40 –20 Figure 12. Max. transient duration not causing reset pulse vs. reset threshold Overdrive 100 Note: ...
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... These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 2. ...
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... Supply Voltage CC Ambient Operating Temperature (T Input Rise and Fall Times Input Pulse Voltages Input and Output Timing Reference Voltages Figure 13. AC testing input/output waveforms conditions. Designers should check that the Parameter ) A 0.8V CC 0.2V CC STM6315 Unit 1.0 to 5.5 V –40 to +125 ° 0 0 ...
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... Reset threshold V (see Table 6 on page 18 RST for detailed listing -to-RST delay RD CC STM6315xAxxxx STM6315xBxxxx RST pulse t (2) rec width STM6315xDxxxx STM6315xGxxxx Reset threshold temperature coefficient 14/21 (1) Test Condition V = 5.5V, no load –40 to +85° 5.5V, no load –40 to +125° ...
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Table 4. DC and AC characteristics (continued) Sym Description Manual Reset Input V MR low input threshold low input threshold IH MR input pulse width MR glitch rejection MR-to-RST delay MR pull-up resistance 1. Valid for ambient ...
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Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner ...
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Figure 14. SOT143-4 – 4-lead small outline transistor package outline 0. SOT143-4 Note: Drawing is not to scale. Table 5. SOT143-4 – 4-lead small outline transistor package mechanical data Symbol Typ ...
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... F = ECOPACK Package, Tape & Reel 1. Other V thresholds and t RST sales office for availability. Note: For other options, or for more information on any aspect of this device, please contact the ST Sales Office nearest you. 18/21 STM6315 R (1) timings are offered. Minimum order quantities may apply. Contact local rec ...
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... STM6315LB 4.63 STM6315MD 4.38 STM6315SD 2.93 STM6315RA 2.63 STM6315RB 2.63 STM6315RD 2.63 STM6315RG 2.63 1. Other V thresholds and t timings are offered. Minimum order quantities may apply. Contact local RST rec sales office for availability. 2. Where "x" = Assembly Work Week (A to Z), such that "A" = WW01-02, "B" = WW03-04, and so forth. ...
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Revision history Table 8. Document revision history Date Revision 14-Nov-2005 08-Feb-2006 12-Apr-2006 27-Jul-2006 21-Mar-2007 20/21 1.0 First edition. Update template, characteristics, marking (Figure 10, and 11; 2.0 Table 4, 6, and 7). 3 Updated characteristics (Figure ...
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... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...