參數(shù)資料
型號(hào): SAB-C163-16F25F
廠商: INFINEON TECHNOLOGIES AG
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP100
封裝: METRIC, PLASTIC, TQFP-100
文件頁(yè)數(shù): 54/66頁(yè)
文件大?。?/td> 669K
代理商: SAB-C163-16F25F
1997 Intermediate Version
Semiconductor Group
58
1997-10-01
C163-16F
AC Characteristics
Unlatched Chip Select
The C163-16F provides the standard latched CS mode known from other C166-Family derivatives
and optinally an unlatched CS mode. In this case the CS signals are directly derived from the
address and are output without latching. Unlatched CS mode is selected with bit CSCFG = ‘1’
(SYSCON.6).
The table and the figure below describe the CS timing in unlatched mode.
Figure 17
External Memory Cycle: Unlatched CS Signal
Parameter
Symbol
Max. CPU Clock
= 25 MHz
Variable CPU Clock
1 / 2TCL = 1 to 25 MHz
Unit
min.
max.
min.
max.
Address to CS
(unlatched CS mode)
t
69
CC 0
5
05ns
CS hold after WR
t
70
CC 0
15
0
15
ns
ALE
CSx
A23 - A16
(A15 - A8)
BHE
Address
MCT03675
5
t
16
t
26
t
39
t
t 38
t 41
t 6
t 70
t 28
t 55
t 17
t 89
(latched)
(unlatched)
CSx
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