參數(shù)資料
型號: MC56F8023VLC
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP32
封裝: ROHS COMPLIANT, PLASTIC, LQFP-32
文件頁數(shù): 29/157頁
文件大?。?/td> 2117K
代理商: MC56F8023VLC
56F8033/56F8023 Data Sheet, Rev. 6
124
Freescale Semiconductor
10.4 Flash Memory Characteristics
10.5 External Clock Operation Timing
Figure 10-4 External Clock Timing
Table 10-9 Flash Timing Parameters
Characteristic
Symbol
Min
Typ
Max
Unit
Program time1
1. There is additional overhead which is part of the programming sequence. See the 56F802X and 56F803X Peripheral
Reference Manual for details.
Tprog
20
40
μs
Erase time 2
2. Specifies page erase time. There are 512 bytes per page in the Program Flash memory.
Terase
20
ms
Mass erase time
Tme
100
ms
Table 10-10 External Clock Operation Timing Requirements1
1. Parameters listed are guaranteed by design.
Characteristic
Symbol
Min
Typ
Max
Unit
Frequency of operation (external clock driver)2
2. See Figure 10-4 for details on using the recommended connection of an external clock driver.
fosc
48
8
MHz
Clock Pulse Width3
3. The chip may not function if the high or low pulse width is smaller than 6.25ns.
tPW
6.25
ns
External Clock Input Rise Time4
4. External clock input rise time is measured from 10% to 90%.
trise
——
3
ns
External Clock Input Fall Time5
5. External clock input fall time is measured from 90% to 10%.
tfall
——
3
ns
External
Clock
VIH
VIL
Note: The midpoint is VIL + (VIH – VIL)/2.
90%
50%
10%
90%
50%
10%
tPW
tfall
trise
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