KS58555B Datasheet | Samsung Semiconductor

FEATURES - - - - - - - - - - - - Flash Time selectable on the keyboard (100, 303, 604 m S) Hands-Free and Hold functions Tone/Pulse switchable 16 digit indirect (Two-touch) 10 memory (Pu Ise : 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 patible 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 BLOCK DIAGRAM UNIVERSAL 15 MEMORY DIALER OSCI OSCO M/B OSC DIVIDER M/B C OUNTER PU LSE COUNTER .. HS CONTROL CIRCUIT MDS/DRS X’MUTE WRITE/READ ADDRESS COUNTER 4 REDIAL R AM DATA LATCH SYSTEM C LOCK TIMING COUNTER DEBOUNCE CIRCUIT C1 C2 C3 C4 C5 R1 R2 R3 R4 R5 KEY INPUT INTERFACE CIRCUIT RECALL/LOCATION LATCH & ADDRESS COUNTER 14 MEMORY STORE RAM ROW, COLUMN SINEWAVE COUNTER & D/A CONVERTER TONE HANDS FREE & HOLD CONTROL OUTPUT VS S UNIVERSAL 15 MEMORY DIALER PIN CONFIGURATION R5 R1 R2 R3 1 2 3 4 5 6 7 8 9 10 11 KS58555B 22 21 20 19 18 17 16 15 14 13 12 HFO C4 C3 C2 C1 DP V+ X’MUTE VS S VDD HDO .. R4 HS M/B MDS/DRS OSCI OSCO C5 ARRANGEMENT OF KEY...