W91414A Winbond, W91414A Datasheet
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W91414A
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W91414A Summary of contents
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GENERAL DESCRIPTION The W91410 series are monolithic ICs that provide the necessary signals for either pulse or tone dialing. The W91410 series feature a redial and save memory. FEATURES DTMF/Pulse switchable dialer Two by 32 digits for redial and save ...
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PIN CONFIGURATION PIN DESCRIPTION SYMBOL PIN I/O Column Row Inputs & XT T/P MUTE MODE HKS ...
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Pin Description, continued SYMBOL PIN I DTMF 14 B FUNCTION N-channel open drain dialing pulse output (Figure 1). Flash key will cause active ...
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BLOCK DIAGRAM ROW (R1 to R4) KEYBOARD INTERFACE COLUMN (C1 to C4) D/A DTMF CONVERTER FUNCTIONAL DESCRIPTION Keyboard Operation F: Flash key R/P: Redial and pause function key P T: Pulse mode to tone mode SAVE: Save memory key XT ...
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Normal Dialing OFF HOOK , D1, D2, ..., Dn will be dialed out. 2. Dialing length is unlimited, but redial is inhibited if length oversteps 32 digits. Redialing OFF HOOK , The R/P ...
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Flash OFF HOOK , F 1. Flash key can be stored as a digit in memory. 2. The system will return to the initial state after the break time is finished. 3. The flash function timing diagram is shown in ...
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DC CHARACTERISTICS ( 2.5V, Fosc. = 3.58 MHz PARAMETER SYMBOL Operating Voltage V DD Operating Current I OP Standby Current I SB Memory Retention I MR Current DTMF Output V TO Voltage Pre-emphasis DTMF ...
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... Crystal oscillator accuracy directly affects these times. SYMBOL CONDITIONS T KID T KRD PDP 10 ppS B B PDP 20 ppS B ppS IDP 20 ppS M Auto Dialing TD T Auto Dialing ITP T W91414 FB W91414A W91412A W91412/W91416 T W91414A FP W91414 W91412A W91412/W91416 T W91412 P W91414/A/W9141 W91410 SERIES MIN. TYP. MAX. UNIT - 33 16 ...
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TIMING WAVEFORMS HKS KEY IN DP T/P MUTE DTMF OSC. HKS KEY IN DP T/P MUTE DTMF OSC. ON HOOK KID IDP T T IDP PDP LOW OSCILLATION NORMAL DIALING Figure 1(a). Pulse Mode ...
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Timing Waveforms, continued HKS KEY IN DTMF T/P MUTE DP OSC. HKS KEY IN DTMF T/P MUTE DP OSC KRD KID T ITP T TD HIGH OSCILLATION NORMAL DIALING Figure 2(a). Tone Mode Timing Diagram R/P T KID ...
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Timing Waveforms, continued HKS KEY IN DP T/P MUTE DTMF OSC. HKS KEY IN DP T/P MUTE DTMF OSC R/P T KID IDP PDP IDP LOW OSCILLATION Figure 3. Pause ...
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... No. 115, Sec. 3, Min-Sheng East Rd., Taipei, Taiwan TEL: 886-2-7190505 FAX: 886-2-7197502 Note: All data and specifications are subject to change without notice. W91410 SERIES Winbond Electronics North America Corp. Winbond Memory Lab. Winbond Microelectronics Corp. Winbond Systems Lab. 2730 Orchard Parkway, San Jose, CA 95134, U.S.A. ...