AS2578BN AMSCO [austriamicrosystems AG], AS2578BN Datasheet
AS2578BN
Related parts for AS2578BN
AS2578BN Summary of contents
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Data Sheet Austria Mikro Systeme International Key Features Low operating voltage Low current consumption, standby Oscillator using Xtal or ceramic resonator (3.58 MHz) Serial interface to external EEPROM Consistent, simple and usable procedures The settings are programmed via the keyboard ...
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Data Sheet Pin Description Pin # Symbol Function 1 C4 Keyboard Columns Hook Switch Input This input is active high with internal pull-down resistor. 6 MODE Signalling (LD/MF) Default Mode Select Input ...
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Data Sheet Pin Description cont´d Pin # Symbol Function 18 DPN Dial Pulse Output This is the push-pull output for controlling the hook-switch transistor low during on- hook and break periods and high during off-hook (see timing diagrammes). ...
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Data Sheet Valid Keys The keyscanning is enabled when are high. During setup the keyboard is disabled. A valid key is detected from the keyboard by connecting the appropriate row to the column. This can be done ...
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Data Sheet After a recall a pause will automatically be generated. The pause time is 3 sec. The ground loop (GL) has two pulse lengths, namely a short of 500 ms and a long of 1250 ms. Short GL: If ...
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Data Sheet data transmission and await the stop condition to return to the standby power mode. SDA SCL data data stable change Figure 1 Data Validity SDA SCL start bit Figure 2 Definition of Start and Stop SCL from master ...
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Data Sheet LM Codes and Pin Options LM code Pin option 02 033* MODE = L 033* MODE = H 036 - 037 - - MODE = Hi-Z 250 ...
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Data Sheet Operating Procedures Procedure Principles The procedures for utilizing the features of the AS2578 /B are optimized out of consideration for the human factor in order to: - meet the user´s expectations - be easy to learn and relearn ...
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Data Sheet Setup Procedures SET ANY OTHER 1 ENTRY FALSE 1590 ANY OTHER LNR ENTRY LM Codes ANY OTHER 022 or 023 or SEQUENCE 033 or 036 or 037 LNR 022, 023 executed. LNR 033, 036, 037 buffered Rev. 3 ...
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Data Sheet Clear Procedures ANY OTHER ENTRY ANY OTHER ENTRY ANY OTHER SEQUENCE LNR Exit programme state Rev. 3 SET 1 * Temporary MF Select Programming Melody LNR 1590 Setup Procedures LM Codes: LM Code 258 = Inhibits LNR and ...
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Data Sheet Programming Melody ANY OTHER ENTRY ANY OTHER ENTRY IGNORED Executing LM Code Exit programme state Rev. 3 SET * Temporary MF Select Setup Procedures Clear Procedure Key LM Codes: (5) ...
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Data Sheet Programming Volume of Melody During Ringing ANY OTHER ENTRY IGNORED Rev. 3 RINGING Key Only one change during ringing phase! LM Codes Volume - 17 Volume - ...
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Data Sheet Temporary MF Select 1 (AP pin = open or low) FIFO Pressing any other key does not change the state. Rev. 3 Set Set R Set Set 2 1 FIFO R Set ...
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Data Sheet Temporary MF Select 2 (AS2578 only) (AP pin = high) FIFO Pressing any other key does not change the state. 2 Rev. 3 Set Set R FIFO R Set Set EXIT FIFO 14 AS2578 ...
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Data Sheet Automatic Dialling Rev. 3 MEM M1 Postdialled digits are not stored but buffered in FIFO 15 AS2578 /B LNR March 1997 ...
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Data Sheet Storing Numbers ANY OTHER ENTRY Exit programme state SET CLEARS SAID RAM MEMORY LOCATION Rev. 3 SET Temporary MF Select M1-3 MEM M1-3 M1-3 SET 40 sec CLEARS SAID RAM MEMORY LOCATION ...
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Data Sheet Privacy Mute Rev. 3 MUTE 17 AS2578 /B March 1997 ...
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Data Sheet Electrical Characteristics Absolute Maximum Ratings Positive Supply Voltage ...................................................................................................................-0.3V Input Current ................................................................................................................................................ 25 mA Digital Input Voltage ......................................................................................................V Electrostatic Discharge (HBM) ........................................................................................................................ 800V Storage Temperature ......................................................................................................................- +125 C Recommended Operating Conditions Supply Voltage (except DTMF) .....................................................................................................2.2V ...
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Data Sheet AC Characteristics Cont´d Symbol Parameter DTMF V MF Tone Level MF V Preemphasis Low to High L-H THD Distortion (0 kHz) t Tone Duration TD t Inter Tone Pause ITP t Tone Rise Time TR t ...
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Data Sheet Pin Configurations MODE OSC2 8 OSC1 9 Vss 10 TONE SDA 13 SCL MODE CE AS2578 OSC2 OSC1 Vss ...
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Data Sheet Ordering Information: Part Number Package AS2578 P 28 pin DIP AS2578 N 28 pin PLCC AS2578B P 28 pin DIP AS2578B N 28 pin PLCC Applications: For application support contact your local AMS sales office. Devices sold by ...