PM7346 datasheet(76/419 Pages) PMC

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PM7346 S/UNI-QJET

DATASHEET

PMC-960835

ISSUE 6

SATURN QUAD USER NETWORK INTERFACE FOR J2, E3, T3

PMC-SIERRA, INC. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND ITS CUSTOMERS’ INTERNAL USE 55

Pin Name

Type

Pin No.

Function

VSS[30]

VSS[31]

VSS[32]

Ground

Y18

Y19

Y20

DC Ground. The DC Ground pins should

be connected to GND.

Notes on Pin Description:

1. All S/UNI-QJET inputs and bi-directionals present minimum capacitive

loading and operate at TTL logic levels.

2. All S/UNI-QJET outputs and bi-directionals have at least 3 mA drive

capability. The data bus outputs, D[7:0], have 3 mA drive capability. The

FIFO interface outputs, RDAT[15:0], RPRTY, RCA, DRCA[4:1], RSOC, TCA,

and DTCA[4:1], have 12 mA drive capability. The outputs TCLK[4:1],

TPOS/TDATO[4:1], TNEG/TOHM[4:1],

TPOHFP/TFPO/TMFPO/TGAPCLK[4:1], LCD/RDATO[4:1],

RPOH/ROVRHD[4:1], RPOHCLK/RSCLK/RGAPCLK[4:1], and

REF8KO/RPOHFP/RFPO/RMFPO[4:1] have 6 mA drive capability. All other

outputs have 3 mA drive capability.

3. Inputs RSTB, ALE, TMS, TDI and TRSTB have internal pull-up resistors.

4. RSTB, TRSTB, TMS, TDI, TCK, REF8KI, TFCLK, RFCLK, TICLK[4:1], and

RCLK[4:1] are schmitt trigger input pads.

5. RFCLK and TFCLK are 3.3 V only input pins – they are not 5 V tolerant.

Connecting a 5 V signal to these inputs may result in damage to the part.

6. The VSS [32:1] ground pins are not internally connected together. Failure to

connect these pins externally may cause malfunction or damage the

S/UNI-QJET.

7. The VDD[28:1] power pins are not internally connected together. Failure to

connect these pins externally may cause malfunction or damage the device.

These power supply connections must all be utilized and must all connect to

a common +3.3 V or ground rail, as appropriate.

8. During power-up and power-down, the voltage on the BIAS pin must be kept

equal to or greater than the voltage on the VDD [28:1] pins, to avoid damage

to the device.

PM7346 Datasheet(PDF) 76 Page - PMC-Sierra, Inc

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