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T8533 Datasheet(PDF) 8 Page - Agere Systems |
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T8533 Datasheet(HTML) 8 Page - Agere Systems |
8 / 48 page Preliminary Data Sheet July 2001 Signal Processor T8533/34 Quad Programmable Line Card 8 Agere Systems Inc. Pin Information (continued) Table 4. Pin Assignments, 68-Pin PLCC, Common Functions Pin Name Type Name/Description 1DO O Serial Data Output. This is a 3-state output. 2DI I Serial Data Input. 3 DCLK I Serial Data Clock Input. 4CS I Chip Select Input. This pin determines the interval that the serial interface is active. 5INTS I Serial Interface Select. Leaving this pin open places the serial interface in the normal mode; grounding it places the interface into the byte-by-byte mode. This pin has an internal pull-up. 10 FILTV PWR Frequency Synthesizer Power (5 V). This pin must be tied to VDD. 11 PVCOIN — Internal Test Point. Do not connect to this pin. 12 PVCO — Internal Test Point. Do not connect to this pin. 13 PLLT — Internal Test Point. Do not connect to this pin. 14 SGND GND Synthesizer Ground. Connect to DGND. A common AGND, DGND, SGND plane is highly recommended. 24, 45, 58, 68 DGND GND Digital Ground. Logic ground and return for logic power supply. A common AGND, DGND, SGND plane is highly recommended. 28, 40, 55, 66 VDD PWR Digital Power Supply (5 V). 56 FS I PCM Frame Strobe Input. This 8 kHz clock must be derived from the same source as BCLK. See the Clocking Considerations section. 57 BCLK I PCM Clock Input. This pin is used to develop internal clocks for certain clock rates. See the Clocking Considerations section. 59 DX O PCM Bus Output Pin. This is a 3-state output. 60 DR I PCM Bus Input Pin. 65 RST I Power-On Reset. A low causes a reset of the entire chip. This pin may be connected to DGND with a 0.1 µF capacitor for a power-on reset function, or it may be driven by external logic. This pin has an internal pull-up. 67 MCLK I 1.024 MHz Master Clock Input. Internal timing is derived from this clock input for certain PCM bus rates. See the Clocking Considerations section. When unused, this pin may be left open. This pin has an internal pull-up. |
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