LC7367中文資料三洋數(shù)據(jù)手冊(cè)PDF規(guī)格書

Overview

The LC7367J, 7367JM are DTMF/OUTPUT-PULSE dialer CMOS ICs with redial function for use in pushbutton telephones.

Features

? Low voltage CMOS process for direct operation from telephone line.

? Possible to use single contact or standard 2-of-7, 2-of-8 key pad.

? Possible to use color-burst crystal resonator for on-chip oscillator (fOSC=3.58MHz).

? Possible to use either mode select pin (P/T) or function key (4×4 matrix key) to select DTMF mode/OUTPUTPULSE mode.

? Mode change with MC key is made in one direction onlyfrom pulse mode to tone mode.

? Delivers 12 DTMF signals when in DTMF mode.

? On-chip 31-digit redial memory.

? Possible to provide mix redial (31 digits-PAUSE-MC) of DTMF/OUTPUT-PULSE mode.

? Either auto pause select (4s.×n) or manual release available for mode select standby time during redial operation.

? Output pulse make rate of OUTPUT-PULSE mode : Pinselectable (33.2 or 40).

? Output pulse rate of OUTPUT-PULSE mode : Pinselelctable (10pps or 20pps).

? On-chip circuit to prevent malfunction due to noise pulse caused by key entry.

? Key touch tone (pacifier tone) output capability. OUTPUT-PULSE mode : 1243Hz/50ms

? Supply voltage / operating temperature

DTMF mode :

VDD=2.0 to 6.0V / Ta=–30 to +70°C

OUTPUT-PULSE mode :

VDD=1.5 to 6.0V / Ta=–30 to +70°C

? Operating current

DTMF mode :

IDD=1.0mA max / VDD=3.5V

OUTPUT-PULSE mode :

IDD=500μA max / VDD=3.5V

? Data retention current IDR≤0.5μA / VDD=1.0V

? Package

LC7367J : Dual-in-line shrink 22-pin package

LC7367JM : Miniflat 30-pin package