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W91314 Datasheet(PDF) 7 Page - Winbond |
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W91314 Datasheet(HTML) 7 Page - Winbond |
7 / 12 page W91310 SERIES Publication Release Date: January 1995 - 7 - Revision A3 DC Characteristics, continued PARAMETER SYM. CONDITIONS MIN. TYP. MAX. UNIT Keypad Input Drive Current IKD VI = 0V 30 - - µA Keypad Input Sink Current IKS VI = 2.5V 200 400 - µA Keypad Resistance - - 5.0 K Ω AC CHARACTERISTICS PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT Keypad Active in Debounce TKID - 20 - mS Key Release Debounce TKRD - 20 - mS Pre-digit Pause1 TPDP1 B/M = 1 - 40 - mS 10 ppS B/M = 0 - 33.3 - Pre-digit Pause2 TPDP2 B/M = 1 - 20 - mS 20 ppS B/M = 0 - 16.7 - Interdigit Pause (Auto dialing) TIDP 10 ppS - 800 - mS 20 ppS - 500 - Make/Break Ratio M/B B/M = 1 - 40:60 - % B/M = 0 - 33:67 - DTMF Output Duration TTD Auto Dialing - 100 - mS Intertone Pause TITP Auto Dialing - 100 - mS Flash Break Time TFB W91314 - 73 - mS W91314A - 100 - W91312A - 300 - W91312/W91316 - 600 - Flash Pause Time TFP W91314A - 100 - mS W91314 - 140 - W91312A 300 W91312/W91316 - 600 - Pause Time TP W91312 - 2.0 - S W91314/A/W9131 6 - 3.6 - Notes: 1. Crystal parameters suggested for proper operation are Rs < 100 Ω, Lm = 96 mH, Cm = 0.02 pF, Cn = 5 pF, Cl = 18 pF, FOSC. = 3.579545 MHz ±0.02%. 2. Crystal oscillator accuracy directly affects these times. |
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