SC91215-A SILAN [Silan Microelectronics Joint-stock], SC91215-A Datasheet
SC91215-A
Related parts for SC91215-A
SC91215-A Summary of contents
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T/P SWITCHABLE DIALER WITH REDIAL HANDFREE FUNCTION DESCRIPTION The SC91214/15 Series is a single-chip, silicon gate, CMOS integrated circuit with an on-chip oscillator for a 3.58MHZ crystal or ceramic resonator. It provides a dialing pulse (DP) or dual tone multi- ...
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BLOCK DIAGRAM ABSOLUTE MAXIMUM RATING Characteristics Power Supply Voltage Input Voltage Output Voltage Output Voltage (DP, XMIT MUTE) Tone Output Current Power Dissipation Operating Temperature Storage Temperature Note: Stresses above those listed under “ Absolute Maximum Ratings” may cause permanent ...
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AC ELECTRICAL CHARACTERISTICS referenced unless otherwise specified) SS Characteristics Symbol Operating Voltage V DD Memory Retention Voltage V MR Memory Retention Current DDP Operating Current I DDT Standby Current Input ...
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Characteristics Break Time Inter-digit Pause Time Pause Time Auto-redial Break Time Delay Time Key Valid to Signal Out Key-in Debounce Key Release Debounce Time Key-in Tone Duration Key-in Tone Frequency Minimum Tone Duration Time Min. Tone Inter-digit Pause Redial ...
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F1: Flash key. The break time is 297 (SC91214/15 respectively) 3) F2: Flash key for break time 640 Pause key (2.2 seconds) 5) RD: One key redial key 6) EMn: One touch ...
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... OSCI and OSCO pins. 3 MODE TRI-STATE mode select pin. IN There ate two versions of the SC91214/15 as follows: a. SC91215 Series is for European and American systems. MODE Floating b. The SC91214 Series is for the Japanese system ...
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Pin No. SC9121 SC9121 SC9121 (N.A.) (N.A (N.A.) 9 (N.A ...
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KEYBOARD OPERATION Symbol definitions: In the description below, signals are defined in terms of the key or switch, which is activated. OFF Hook means the phone is off the hook. ON Hook means the phone is on the hook. D1 ...
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The INITIAL mode is PULSE mode if the mode selection pin, MODE IN, is VDD or floating. The */T key can switch the DIALING mode to TONE mode. Unlike NORMAL mode switching, the */T key entry, as the first key ...
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If the dialing finished, pressing RD will cause the pulse dialing pin to go low for 67 seconds of break time and an 824 ms pause will automatically be added. If the pulses of the ...
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TIMING DIAGRAMS 1.Timing diagram in PULSE mode: 2. Timing diagram in TONE mode (i) Normal dialing (ii) After (i), redialing HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC91214/91215 SERIES REV:1.0 2004.08.03 Page ...
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Timing diagram for SWITCHING mode operation: (i) By mode selection pin switches (ii) By */T key entry TPAU: Pause time (2.2 secs) HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC91214/91215 SERIES REV:1.0 2004.08.03 Page ...
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One key redial (DTMF mode used as example): TAOBK: Break time (2.2 secs) 5. Flash dialing (DTMF mode used as example): HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC91214/91215 SERIES REV:1.0 2004.08.03 Page ...
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TYPACAL APPLICATION CIRCUIT 20P 20P PULSE TONE 100 LED 8050 PIEZO SPE HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC91214/91215 SERIES 100K 100K 220K A42 0.47 8050 0.1 0.47 100k 0.02 8050 100K 47 1K 3.9V 200 2M REV:1.0 2004.08.03 Page ...
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PACKAGE OUTLINE DIP-16-300-2.54 DIP-18-300-2.54 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC91214/91215 SERIES UNIT: mm UNIT: mm REV:1.0 2004.08.03 Page ...
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PACKAGE OUTLINE (continued) DIP-20-300-2.54 0.51MIN HANDLING MOS DEVICES: Electrostatic charges can exist in many things. All of our MOS devices are internally protected against electrostatic discharge but they can be damaged if the following precautions are not taken: Persons at ...