參數(shù)資料
型號(hào): PM73488
廠商: PMC-SIERRA INC
元件分類: 數(shù)字傳輸電路
英文描述: 5 Gbit/s ATM Switch Fabric Element
中文描述: ATM SWITCHING CIRCUIT, PBGA596
封裝: EPBGA-596
文件頁數(shù): 68/135頁
文件大小: 1735K
代理商: PM73488
PMC-Sierra, Inc.
PM73488 QSE
L
PMC-980616
Issue 3
5 Gbit/s ATMSwitch Fabric Element
Released
Datasheet
70
6.4
All inputs except SE_CLK are 5V tolerant. All bidirectional signals are 5 V tolerant. Other outputs are not 5 V toler-
ant. All pins have pull-ups except /IDDTN.
Pin Descriptions
All inputs have Schmitt triggers, except the SCAN_TDI, SCAN_TMS, /SCAN_TRST, /SCAN_EN, /TEST_MODE,
/PLL_BYPASS, DATA[7:0] (which is a bi-di) and RAM_DATA[15:0] (which is also a bi-di).
For outputs, the drive strength listed in the “Type” column (in
Table 16 on page 72
through
Table 20 on page 81
) is in
milliamperes. (For example, Out 5 is and output with a drive strength of 5mA.) All switch fabric interface outputs,
namely SE_SOC_OUT, SE_D_OUT and BP_ACK_OUT, should be series terminated if the trace is more than four
inches long. (Use the series termination resistor as close as possible to the QSE. If the characteristic impedance of the
board trace is R ohms, then use a series termination of (R-11) ohms for SE_SOC_OUT, and (R-17) ohms for
SE_D_OUT and BP_ACK_OUT .)
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