參數(shù)資料
型號: L64781
廠商: LSI CORP
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝: PLASTIC, QFP-100
文件頁數(shù): 49/164頁
文件大?。?/td> 2003K
代理商: L64781
6-4
Specications
6.2 AC Timing
The following subsections provide the AC timing for the microprocessor
interface, input interface, and output interface.
6.2.1 Microprocessor Interface Timing
The microprocessor interface timing is given in Table 6.4.
Table 6.4
AC Timings of the Microprocessor Interface
Parameter
Description
Min
Max
Unit
0fCLK18
CLK18 clock frequency.
18.5
MHz
1fSCL
SCL clock frequency.
1.32
MHz
2tBUF
Bus free time between STOP and
START condition.
2
Cycle of CLK18
3tHD;STA
Hold time (repeated) START condition.
After this period, the rst clock pulse is
generated.
2
Cycle of CLK18
4tLOW
Low period for the SCL clock.
7
Cycle of CLK18
5tHIGH
High period for the SCL clock.
7
Cycle of CLK18
6tSU;STA
Set-up time for a repeated START
condition.
2
Cycle of CLK18
7tHD;DAT
Data hold time.
1
6
Cycle of CLK18
8tSU;DAT
Data setup time.
1
Cycle of CLK18
9tSU;STO
Setup time for STOP condition.
1
Cycle of CLK18
l64781.book Page 4 Friday, January 19, 2001 1:28 PM
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