IL91260C

TECHNICAL DATA IL91260C 10 Memory Tone/Pulse Dialer High-Performance Silicon-Gate CMOS The IL91260C is tone/pulse switchable dialer with ten 16-digit number memories and 32-digit redial memory. Pulse to tone mode switching is performed via a slide switch. 32-digit redial memory (31 digits in tone mode) Ten indirect memories, 16 digits in pulse mode, 15 digits in tone mode Tone/Pulse mode switching via slide switch (4.1 second pause inserted automatically) Wide operating voltage: 1.8 V ∼ 5.5 V Uses 480 KHz ceramic resonator Low memory retention current Selectable Make/Break ratio Dial Pulse Rate: 10 pps ORDERING INFORMATION IL91260CN TA = -20° to 70° C PIN ASSIGNMENT LOGIC DIAGRAM www.DataSheet4U.com PIN 11 = GND PIN 10 = VCC Keyboard Assignments* 1 4 7 * C1 2 5 8 0 C2 3 6 9 # C3 S A/L P R C4 R1 R2 R3 R4 S A/L P R : Store : Auto/Location : Pause : Redial ww.DataSheet4U.com IL91260C Pin Description Pin No. 1 2 3 4 5 Designation R1 R2 R3 R4 HK Hook switch input. When HK = VCC, an ON-Hook state exists. When HK = GND, an Off-Hook state exists. Dial pulse Make/Break ratio select input. If M/B = VCC , the Make/Break ratio is 1/2. If M/B = GND, the Make/Break ratio is 2/3. Pulse/DTMF mode select input. If MODE SELECT = VCC , Pulse mode is in effect. If MODE SELECT = GND, DTMF mode is in effect. Oscillator I/O. A 480 KHz ceramic resonator and two 100 pF serial loading capacitors form a complete oscillator circuit. The circuit is activated when HK is low. Osci...