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參數(shù)資料
| 型號(hào)： | NM29A080V |
| 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： | 8M X 1 FLASH 5V PROM, PQCC32 |
| 封裝： | PLASTIC, LCC-32 |
| 文件頁(yè)數(shù)： | 3/14頁(yè) |
| 文件大小： | 218K |
| 代理商： | NM29A080V |
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System Concepts
The NM29A040/080 are 4-Mbit and 8-Mbit NAND Flash de-
signed to provide the most cost effective solution for file
storage applications. These applications include digital au-
dio recording, digital image storage and data logging appli-
cations.
For digital audio storage, the NM29A040/080 have been
matched with National’s NSAM266 voice processor. Appli-
cations that can benefit from this combination include digital
answering machines, personal digital recorders, pagers and
voicemail systems. When combined with National Semicon-
ductor’s CompactSPEECH
TM
embedded software and the
NSAM266 processor, customers can quickly bring to market
systems capable of recording up to 15 minutes of audio on
a single 4 Mb device. Multiple NM29A040/080’s can be
used to extend the record time up to 2 hours.
Digital imaging applications include FAX machines, hand-
held
scanners
and
digital
NM29A040/080 with the CompactRISC family of embedded
processors can enable complete solutions for image stor-
age.
cameras.
Combining
the
Data logging applications can take advantage of the
NM29A040/080’s simple interface and nonvolatility to allow
simple 8-bit microcontroller based systems to have access
to over 4 Mb of storage. The nonvolatility ensures data in-
tegrity in remote, battery powered applications.
TL/D/12475–4
FIGURE 1. Digital Audio Recording Solution
TABLE I. Data Transfer Rates
Transfer Rates
Total Time
Page
Block
Page
Block
Read
1.02 Mbits/s
(127.5 kbytes/s)
2.61 Mbits/s
(325.8 kbytes/s)
251
m
s
12.6 ms
Write
406.3 kbits/s
(50.8 kbytes/s)
536.4 kbits/s
(67.1 kbytes/s)
630
m
s
61.1 ms
Erase
D
D
D
6 ms
http://www.national.com
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