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PCD3311CT Datasheet(PDF) 8 Page - NXP Semiconductors |
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PCD3311CT Datasheet(HTML) 8 Page - NXP Semiconductors |
8 / 28 page 1996 Nov 21 8 Philips Semiconductors Product specification DTMF/modem/musical-tone generators PCD3311C; PCD3312C 7.10 Power-on reset In order to avoid an undefined state when the power is switched ON, the devices have an internal reset circuit which sets the standby mode (oscillator OFF). 7.11 TABLES OF INPUT AND OUTPUT The specified output tones are obtained when a 3.579545 MHz crystal is used. In each table, the logical states for the input data lines are related to voltage levels as follows: 1 = HIGH = VDD 0 = LOW = VSS X = don’t care Table 2 Input data for no output tone, TONE in 3-state Note 1. The alternative HEX values depend on the value of D5. D5 D4 D3 D2 D1 D0 HEX(1) OSCILLATOR X 0 0 0 0 0 00 or 20 ON X 0 0 0 0 1 01 or 21 OFF X 0 0 0 1 0 02 or 22 OFF X 0 0 0 1 1 03 or 23 OFF handbook, full pagewidth MGG512 S 010010 A0 0 A X X D5 D4 D3 D2 D1 D0 A P slave address data R/W MSB acknowledge from slave acknowledge from slave internal STROBE for data latching Fig.6 I2C-bus data format. |
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