參數(shù)資料
型號(hào)： MC9S12C32CFA
廠商： MOTOROLA INC
元件分類(lèi)： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP48
封裝： LQFP-48
文件頁(yè)數(shù)： 65/94頁(yè)
文件大小： 906K
代理商： MC9S12C32CFA
Device User Guide — 9S12C32DGV1/D V01.01
68
The setup times can be ignored for this operation.
A.3.1.4 Mass Erase
Erasing a NVM block takes:
The setup times can be ignored for this operation.
A.3.2 NVM Reliability
The reliability of the NVM blocks is guaranteed by stress test during qualification, constant process
monitors and burn-in to screen early life failures.
The failure rates for data retention and program/erase cycling are specified at
<2ppm defects over lifetime
at the operating conditions noted.
A program/erase cycle is specified as two transitions of the cell value from erased
→ programmed →
erased, 1
→ 0 → 1.
Table A-13 NVM Timing Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num
Rating
Symbol
Min
Typ
Max
Unit
1
External Oscillator Clock
fNVMOSC
0.5
501
NOTES:
1. Restrictions for oscillator in crystal mode apply!
MHz
2
Bus frequency for Programming or Erase Operations
fNVMBUS
1
MHz
3
Operating Frequency
fNVMOP
150
200
kHz
4
Single Word Programming Time
tswpgm
462
2. Minimum Programming times are achieved under maximum NVM operating frequency f NVMOP and maximum bus frequen-
cy fbus.
74.53
3. Maximum Erase and Programming times are achieved under particular combinations of f NVMOP and bus frequency f bus
. Refer to formulae in Sections A.3.1.1 - A.3.1.4 for guidance.
s
5
Flash Burst Programming consecutive word
tbwpgm
20.42
313
s
6
Flash Burst Programming Time for 32 Words
tbrpgm
678.42
1035.53
s
7
Sector Erase Time
tera
204
4. Minimum Erase times are achieved under maximum NVM operating frequency f NVMOP .
26.73
ms
8
Mass Erase Time
tmass
1004
1333
ms
9
Blank Check Time Flash per block
t check
115
5. Minimum time, if first word in the array is not blank
327786
6. Maximum time to complete check on an erased block.
tcyc
t
mass
20000
1
f
NVMOP
---------------------
≈
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MC9S12C32CPB16 制造商:FREESCALE-SEMI 功能描述:
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