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MT91L60 Datasheet(PDF) 2 Page - Mitel Networks Corporation |
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MT91L60 Datasheet(HTML) 2 Page - Mitel Networks Corporation |
2 / 20 page MT91L60 Advance Information 7-108 Figure 2 - Pin Connections Pin Description Pin # SOIC DIP Name Description 11 VBias Bias Voltage (Output). (VDD/2) volts is available at this pin for biasing external amplifiers. Connect 0.1 µF capacitor to VSSA. 22 VRef Reference Voltage for Codec (Output). Used internally. Connect 0.1 µF capacitor to VSSA. 3 4 PWRST Power-up Reset (Input). CMOS compatible input with Schmitt Trigger (active low). 45 IC Internal Connection. Tie externally to VSS for normal operation. 56 A/ µ/IRQ A/µ - When internal control bit DEn = 0 this CMOS level compatible input pin governs the companding law used by the filter/Codec; µ-Law when tied to V SS and A-Law when tied to VDD. Logically OR’ed with A/µ register bit. IRQ - When internal control bit DEn = 1 this pin becomes an open-drain interrupt output signalling valid access to the D-Channel registers in ST-BUS mode. 67 VSSD Digital Ground. Nominally 0 volts. 78 CS Chip Select (Input). This input signal is used to select the device for microport data transfers. Active low. CMOS level compatible. 810SCLK Serial Port Synchronous Clock (Input). Data clock for microport. CMOS level compatible. 911 DATA 1 Bidirectional Serial Data. Port for microprocessor serial data transfer. In Motorola/ National mode of operation, this pin becomes the data transmit pin only and data receive is performed on the DATA 2 pin. Input CMOS level compatible. 10 12 DATA 2 Serial Data Receive. In Motorola/National mode of operation, this pin is used for data receive. In Intel mode, serial data transmit and receive are performed on the DATA 1 pin and DATA 2 is disconnected. Input CMOS level compatible. M - M + VBias VRef IC VSSD SCLK DATA1 DATA2 Din Dout VSSA HSPKR + HSPKR - VDD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 24 23 22 21 20 19 18 17 NC PWRST A/ µ/IRQ CS NC STB/F0i NC CLOCKin NC M - M + VBias VRef IC VSSD SCLK DATA1 DATA2 Din Dout VSSA HSPKR + HSPKR - VDD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 20 19 18 17 PWRST A/ µ/IRQ CS STB/F0i CLOCKin 20 PIN SOIC 24 PIN PDIP |
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Similar Description - MT91L60 |
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