參數(shù)資料
型號: 21555-AA
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項-數(shù)據(jù)表參考
文件頁數(shù): 10/30頁
文件大?。?/td> 485K
代理商: 21555-AA
Non-Transparent PPB
10
Datasheet
2.0
Pin Assignment
This chapter describes the 21555 pin assignment and lists the pins according to location and in
alphabetic order.
Figure 3
shows the 21555 304-point ball grid array (PBGA), representing the pins in vertical rows
labeled numerically, and horizontal rows labeled alphabetically.
Table 2
defines the signal type
abbreviations used in the signal and pin tables for this specification.
Table 3
and
Table 4
use these
alphanumerics to identify pin assignments.
Table 2. Signal Type Abbreviations
Signal Type
Description
I
Standard input only.
O
Standard output only.
TS
Tristate bidirectional.
STS
Sustained tristate. Active low signal must be pulled high for one clock cycle when
deasserting.
OD
Standard open drain.
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