KS58555

KS58555B UNIVERSAL 15 MEMORY DIALER INTRODUCTION The KS58555B is 15 memory Tone/pulse switchable dialer with 32 digit redial memory. 16 digit indirect 10 memory and 16 digit direct 4 memory are possible. The Flash time is selectable on the keyboard. Also, Hands-Free and Hold functions are controlled on the keyboard. The KS58555B can fulfill all the standards of each country. 22-DIP-400 FEATURES Flash Time selectable on the keyboard (100, 303, 604 mS) Hands-Free and Hold functions Tone/Pulse switchable 16 digit indirect (Two-touch) 10 memory (PuIse : 16 digit, Tone : 15 digit) 16 digit direct (One-touch) 4 memory (Pulse : 16 digit, Tone : 15 digit) Uses 3.579545MHz Color burst Crystal or ceramic resonator Pulse rate selectable. (10 pps, 20 pps) Make/Break ratio selectable (40 : 60, 33 : 66) Single tone enable for test Tone (T/) key function (Pulse → Tone) Redial function (Pulse : 32 digit, Tone : 31 digit) Pin compatible with KS58006, KS58012, and KS58550 ORDERING INFORMATION Devic e KS58555B *HFD *HOLD *EM : : : Package HFD 22-DIP-400 O HOLD O EM O Function Flash Time Selectable M/B Ratio Selectable PPS Selectable Hands Free Dialing Function Hold for Melody Emergency Memory KS58555B BLOCK DIAGRAM UNIVERSAL 15 MEMORY DIALER VDD OSCI OSCO M/B OSC DIVIDER M/B C OUNTER PU LSE COUNTER DP HS CONTROL CIRCUIT MDS/DRS SYSTEM C LOCK TIMING COUNTER DEBOUNCE CIRCUIT X’MUTE WRITE/READ ADDRESS COUNTER 4 REDIAL R AM DATA LATCH C1 C2 C3 C4 C5 R1 R2...