參數(shù)資料
型號: MCF52235
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: ColdFire Microcontroller
中文描述: ColdFire微控制器
文件頁數(shù): 36/50頁
文件大?。?/td> 656K
代理商: MCF52235
MCF52235 ColdFire Microcontroller, Rev. 3
Preliminary Electrical Characteristics
Freescale Semiconductor
36
2.6
Reset Timing
Figure 7. RSTI and Configuration Override Timing
2.7
Table 28
lists specifications for the I
2
C input timing parameters shown in
Figure 8
.
Table 28. I
2
C Input Timing Specifications between I2C_SCL and I2C_SDA
I
2
C Input/Output Timing Specifications
Table 29
lists specifications for the I
2
C output timing parameters shown in
Figure 8
.
Table 27. Reset and Configuration Override Timing
(V
DD
= 2.7 to 3.6 V, V
SS
= 0 V, T
A
= T
L
to T
H
)
1
1
All AC timing is shown with respect to 50% V
DD
levels unless otherwise noted.
2
During low power STOP, the synchronizers for the RSTI input are bypassed and RSTI is asserted asynchronously to the
system. Therefore, RSTI must be held a minimum of 100ns.
Num
Characteristic
Symbol
Min
Max
Unit
R1
RSTI input valid to CLKOUT high
t
RVCH
t
CHRI
t
RIVT
t
CHROV
9
ns
R2
CLKOUT high to RSTI input invalid
RSTI input valid time
2
1.5
ns
R3
5
t
CYC
ns
R4
CLKOUT high to RSTO valid
10
Num
Characteristic
Min
Max
Units
I1
Start condition hold time
2
×
t
CYC
8
×
t
CYC
ns
I2
Clock low period
ns
I3
SCL/SDA rise time (V
IL
= 0.5 V to V
IH
= 2.4 V)
1
ms
I4
Data hold time
0
ns
I5
SCL/SDA fall time (V
IH
= 2.4 V to V
IL
= 0.5 V)
1
ms
I6
Clock high time
4
×
t
CYC
ns
I7
Data setup time
0
ns
I8
Start condition setup time (for repeated start condition only)
2
×
t
CYC
2
×
t
CYC
ns
I9
Stop condition setup time
ns
1
R1
R2
CLKOUT
RSTI
RSTO
R3
R4
R4
相關(guān)PDF資料
PDF描述
MCF5232CAB80 Integrated Microprocessor Hardware Specification
MCF5232 Integrated Microprocessor Hardware Specification
MCF5249 CodeWarrior Development Studio for ColdFire㈢ Architectures
MCF5251_07 ColdFire㈢ Microprocessor Data Sheet
MCF5251 ColdFire Processor
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