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LC73701M Datasheet(PDF) 2 Page - Sanyo Semicon Device |
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LC73701M Datasheet(HTML) 2 Page - Sanyo Semicon Device |
2 / 11 page Pin Assignment No. 5561-2/11 LC73701M Pin Functions Pin No. Pin I/O Pin function 1 CE I Set high when data is valid. This signal is also used when DTMF signals are issued consecutively in DTMF mode. The last DTMF signal is output until CE goes low. 2 CK I Data acquisition clock. Data is acquired on the rising edge of this signal. 3NC 4 DATA I Input for the 8-bit data. 5 RES I Reset input. Apply a low level to this input to reset dialer operation when, for example, power is first applied. 6 BUSYOUT O Outputs a high level during dialer operation, including during pauses. This is a complementary output. 7 OSCI I Oscillator circuit connections. Connect either a crystal or ceramic 4.194304 MHz oscillator element to these pins. 8 OSCO O 9VSS Power supply 10 VDD 11 BMR I Make ratio switching input. High: 33%, Low: 39% 12 NC 13 TEST I LSI internal test pin. This pin either must be left open or must be tied low during normal operation. 14 DTMF O DTMF output. This is an npn emitter-follower output. 15 MUTE2 O DTMF mute output. This is an n-channel open-drain output. 16 MUTE O DP and DTMF mute output. This is an n-channel open-drain output. 17 MUTE1 O DP mute output. This is an n-channel open-drain output. 18 DP O DP output. This can be either an n-channel open-drain output or a complementary output. Unused inputs must always be tied to an appropriate logic level, i.e. either ground or VDD. DTMF VSS |
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