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參數(shù)資料
| 型號： | NM29A040EV |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PROM |
| 英文描述： | 4 Mbit Uniform Sector, Serial Flash Memory |
| 中文描述： | 4M X 1 FLASH 5V PROM, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 218K |
| 代理商： | NM29A040EV |
Number of Valid Blocks
The NM29A040/080 may contain unusable blocks. These
unusable blocks should not be used to store data. Notifica-
tion (5) describes how to identify unusable blocks.
Symbol
Parameter
Min
Typ
Max
Units
N
VB4
4-Mbit Number of Valid Blocks
(1)
117
TBD
127
(2)
Block
N
VB8
8-Mbit Number of Valid Blocks
(1)
234
TBD
254
(2)
Block
Note 1:
A valid block is a block having all 4096 bytes usable. An unusable block is a block in which
a minimum of one bit is unusable.
Note 2:
Not including Block 127 (4-Mbit) or 254 (8-Mbit).
Timing Diagrams
Synchronous Data Timing
TL/D/12475–16
Get Status Timing
TL/D/12475–17
Note:
To avoid putting the device in an unknown state, DI should be held low when not clocking in data/commands.
Set Address Timing
TL/D/12475–18
Note:
CS can be pulled high during t
SADD
, t
R
, t
PROG
, and t
BERASE
. However, DO will only reflect the status (ready/busy) while CS is low.
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NM29A040M | 4 Mbit Uniform Sector, Serial Flash Memory |
| NM29A040V | 4 Mbit Uniform Sector, Serial Flash Memory |
| NM29A080 | 4 Mbit Uniform Sector, Serial Flash Memory |
| NM29A080EM | 4 Mbit Uniform Sector, Serial Flash Memory |
| NM29A080EV | 4 Mbit Uniform Sector, Serial Flash Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NM29A040M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:4-Mbit/8-Mbit CMOS Serial FLASH E2PROM |
| NM29A040V | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:4-Mbit/8-Mbit CMOS Serial FLASH E2PROM |
| NM29A080 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:4-Mbit/8-Mbit CMOS Serial FLASH E2PROM |
| NM29A080EM | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:4-Mbit/8-Mbit CMOS Serial FLASH E2PROM |
| NM29A080EV | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:4-Mbit/8-Mbit CMOS Serial FLASH E2PROM |
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