參數(shù)資料
型號(hào)： STR71XF
廠商： 意法半導(dǎo)體
英文描述： ARM7TDMI? 16/32-BIT MCU WITH FLASH, USB, CAN 5 TIMERS, ADC, 10 COMMUNICATIONS INTERFACES
中文描述： ARM7TDMI的？ 16/32位微控制器5定時(shí)器，ADC和10 COMMUNICAT離子接口與閃存，USB，可以
文件頁數(shù)： 38/49頁
文件大小： 678K
代理商： STR71XF
STR71xF - ELECTRICAL CHARACTERISTICS
38/49
2.10 External Memory Bus Timing
V
33
= 3.3
±
10%, T
A
= -40 / 85 °C unless otherwise specified.
The tables below use a variable which is derived from the EMI_BCONn registers (described in
the STR71x Reference Manual) and represents the special characteristics of the programmed
memory cycle.
Table 21. EMI Read Operation
See
Figure 10
,
Figure 11
,
Figure 12
and
Figure 13
for related timing diagrams.
Table 22. EMI Write Operation
See
Figure 14
,
Figure 15
,
Figure 16
and
Figure 17
for related timing diagrams.
Symbol
t
MCLK
t
C
Parameter
Value
1 / f
MCLK
CPU clock period
Memory cycle time wait states
t
MCLK
x (1 + [C_LENGTH])
Symbol
Parameter
Test Conditions
Value
Typ
t
MCLK
t
C
3
3
1.3*t
MCLK
3
3
t
MCLK
Unit
Min
Max
t
RCR
t
RP
t
RDS
t
RDH
t
RAS
t
RAH
t
RAT
t
RRT
Read to CSn Removal Time
Read Pulse Time
Read Data Setup Time
Read Data Hold Time
Read Address Setup Time
Read Address Hold Time
Read Address Turnaround Time
RDn Turnaround Time
ns
ns
ns
ns
ns
ns
ns
ns
Symbol
Parameter
Test Conditions
Value
Typ
t
MCLK
t
C
3
3
1.3*t
MCLK
3
3
t
MCLK
Unit
Min
Max
t
WCR
t
WP
t
WDS
t
WDH
t
WAS
t
WAH
t
WAT
t
WWT
WEn to CSn Removal Time
Write Pulse Time
Write Data Setup Time
Write Data Hold Time
Write Address Setup Time
Write Address Hold Time
Write Address Turnaround Time
WEn Turnaround Time
ns
ns
ns
ns
ns
ns
ns
ns
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