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參數(shù)資料
| 型號(hào)： | MAC7121CVF |
| 廠商： | Motorola, Inc. |
| 英文描述： | MAC7100 Microcontroller Family Hardware Specifications |
| 中文描述： | MAC7100微控制器系列硬件規(guī)格 |
| 文件頁數(shù)： | 34/48頁 |
| 文件大?。?/td> | 1514K |
| 代理商： | MAC7121CVF |
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34
MAC7100 Microcontroller Family Hardware Specifications
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
Electrical Characteristics
3.13.1.3 Sector Erase
Erasing a 4k byte Flash sector takes:
The setup time can be ignored for this operation.
3.13.1.4 Mass Erase
Erasing a NVM block takes:
The setup time can be ignored for this operation.
3.13.1.5 Blank Check
The time it takes to perform a blank check on the Flash or Data Flash is dependant on the location of the
first non-blank word starting at relative address zero. It takes one bus cycle per word to verify plus a setup
of the command.
t
check
location t
cyc
≈
Table 36. NVM Timing Characteristics
1
1
Conditions are shown in Table 6 unless otherwise noted
Restrictions for oscillator in crystal mode apply!
Minimum programming times are achieved under maximum NVM operating frequency f
NVMOP
and maximum bus frequency f
bus
.
Maximum erase and programming times are achieved under particular combinations of f
NVMOP
and bus frequency
f
bus
. Refer to formulae in Section 3.13.1.1, “Single Word Programming,”
through Section 3.13.1.4, “Mass Erase,” for
more information.
Minimum erase times are achieved under maximum NVM operating frequency f
NVMOP
.
Minimum time, if first word in the array is not blank
Maximum time to complete check on an erased block
Num C
Rating
Symbol
Min
Typ
Max
Unit
Z1
D System Clock/2
f
NVMfsys
f
NVMBUS
f
NVMOP
t
swpgm
t
bwpgm
t
brpgm
t
era
t
mass
t
check
t
check
0.5
—
50
2
2
MHz
Z2
D
Bus frequency for Programming or Erase Operations
1
—
—
MHz
Z3
D Operating Frequency
150
46
3
20.4
3
678.4
3
20
5
100
5
11
6
11
6
—
200
74.5
4
31
4
1035.5
4
26.7
4
133
4
32778
7
2058
7
kHz
Z4
P Single Word Programming Time
3
—
4
μ
s
Z5
D Flash Burst Programming consecutive word
—
μ
s
Z6
D Flash Burst Programming Time for 32 Words
—
μ
s
Z7
P Sector Erase Time
5
—
ms
Z8
P Mass Erase Time
—
ms
Z9
D Blank Check Time Flash per block
6
—
7
t
cyc
t
cyc
Z10
D Blank Check Time Data Flash per block
—
t
era
4000
1
f
NVMOP
-----------------
≈
t
mass
20000
1
f
NVMOP
-----------------
≈
10 t
cyc
+
F
Freescale Semiconductor, Inc.
n
.
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