BL1101

( DataSheet : www.DataSheet4U.com ) BL1101 Series Tone/pulse dialer with Hand-free and lock functions Description BL1101 series is a single chip dialer IC using Si-gate CMOS process, it can provide the necessary signal for either pulse or DTMF dialing, it features Hand-free dialing, first number “0” and “9” dialing lock and redialing (at most 32bit) etc., it is compatible with W91330 series. C1 C2 C3 C4 NC Vss XT XT T/PMUTE HF1 1 20 2 19 3 18 4 17 5 BL1101A 16 15 6 14 7 13 8 12 9 10 11 PDIP 20 R4 R3 R2 R1 VDD MODE DTMF DP HKS HFO C1 C2 C3 C4 LOCK Vss XT XT T/PMUTE HF1 1 20 2 19 3 18 4 17 5 BL1101AL 16 15 6 14 7 13 8 9 12 10 11 PDIP 20 R4 R3 R2 R1 VDD MODE DTMF DP HKS HFO C1 C2 C3 C4 NC Vss XT XT T/PMUTE 18 1 2 17 16 3 4 15 5 BL1101 14 13 6 12 7 8 11 9 PDIP 18 R4 R3 R2 R1 VDD MODE DTMF DP HKS C1 C2 C3 C4 LOCK Vss XT XT T/PMUTE 1 18 2 17 16 3 15 4 5 BL1101L 14 13 6 7 12 8 11 9 PDIP 18 R4 R3 R2 R1 VDD MODE DTMF DP HKS Features Operating voltage: 2.0V~5.5V DTMF/Pulse selection with switch Easy operation with Redial, Flash and Pause functions Power on reset on-chip Uses 4¡Á 4 keyboard Pause, P-T(pulse to tone ) can be stored as a digit in memory Flash time: 98ms, 600ms Minimum tone output duration: 100 ms, Minimum inter tone pause: 100ms Uses 3.57945 MHz crystal or ceramic resonator The dial-out of start number “0” or “9” can be locked Package in 18 or 20-pin plastic DIP Application Uses as dialing circuit in telephone set, complete relevant Typical application circuit A...