参数资料
型号: SAB-C167CS-LMCA
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 16-BIT, 25 MHz, MICROCONTROLLER, PQFP144
封装: PLASTIC, MQFP-144
文件页数: 77/84页
文件大小: 1082K
代理商: SAB-C167CS-LMCA
C167CS-4R
C167CS-L
Data Sheet
75
V2.2, 2001-08
External XRAM Access
If XPER-Share mode is enabled the on-chip XRAM of the C167CS can be accessed
(during hold states) by an external master like an asynchronous SRAM.
Figure 24
External Access to the XRAM
Table 21
XRAM Access Timing (Operating Conditions apply)
Parameter
Symbol
Limit Values
Unit
min.
max.
Address setup time before RD/WR falling edge
t40 SR 4
ns
Address hold time after RD/WR rising edge
t41 SR 0
ns
Data turn on delay after RD falling edge
Re
ad
t42 CC 2
ns
Data output valid delay after address latched
t43 CC –
37
ns
Data turn off delay after RD rising edge
t44 CC 0
10
ns
Write data setup time before WR rising edge
Write
t45 SR 10
ns
Write data hold time after WR rising edge
t46 SR 1
ns
WR pulse width
t47 SR 18
ns
WR signal recovery time
t48 SR t40
ns
Read Data
43
t
42
t
44
t
MCT04423
(RD, WR)
Write Data
Command
Address
40
t
45
t
47
t
46
t
48
t
41
t
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