Features: • Single + 5 V Power Supply• Detects All 16 Standard Digits• Uses Inexpensive 3.58 MHz Crystal• Provides Guard Time Controls to Improve Speech Immunity• Output in 4Bit Hexadecimal Code• BuiltIn 60 Hz and Dial Tone Rejection• Pin Compatible with S...
MC145436A: Features: • Single + 5 V Power Supply• Detects All 16 Standard Digits• Uses Inexpensive 3.58 MHz Crystal• Provides Guard Time Controls to Improve Speech Immunity• Outpu...
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Rating | Symbol | Value | Unit |
DC Supply Voltage | VDD | 0.5 to + 6.0 | V |
Input Voltage, Any Pin Except Ain | Vin | 0.5 to VDD+ 0.5 | V |
Input Voltage, Ain | Vin | VDD 10 to VDD+ 0.5 | V |
DC Current Drain per Pin | I | ±10 | mA |
Power Dissipation | PD | 100 | mW |
Operating Temperature Range | TA | 40 to + 85 | °C |
Storage Temperature Range |
Tstg | 65 to + 150 | °C |
The MC145436A is a lowpower and improved input sensitivity version of theMC14LC5436.
The MC145436A is a silicon gate CMOS LSI device containing the filter and decoder for detection of a pair of tones conforming to the DTMF standard with outputs in hexadecimal. Switched capacitor filter technology is used together with digital circuitry for the timing control and output circuits. The MC145436A provides excellent power line noise and dial tone rejection and is suitable for applications in central office equipment, PABX, and keyphone systems, remote control equipment and consumer telephony products.