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AT29C257-12JI集成電路（IC）的存儲(chǔ)器規(guī)格書PDF中文資料
| 廠商型號 |
AT29C257-12JI |
| 參數(shù)屬性 | AT29C257-12JI 封裝/外殼為32-LCC（J 形引線）；包裝為管件；類別為集成電路（IC）的存儲(chǔ)器；產(chǎn)品描述：IC FLASH 256KBIT PARALLEL 32PLCC |
| 功能描述 | 256K 32K x 8 5-volt Only CMOS Flash Memory |
| 封裝外殼 | 32-LCC（J 形引線） |
| 文件大小 |
562.2 Kbytes |
| 頁面數(shù)量 |
12 頁 |
| 生產(chǎn)廠商 | Atmel Corporation |
| 企業(yè)簡稱 |
Atmel【愛特梅爾】 |
| 中文名稱 | 愛特梅爾公司官網(wǎng) |
| 原廠標(biāo)識 |  |
| 數(shù)據(jù)手冊 | |
| 更新時(shí)間 | 2025-2-14 22:58:00 |
AT29C257-12JI規(guī)格書詳情
Description
The AT29C257 is a 5-volt-only in-system Flash programmable and erasable read only memory (PEROM). Its 256K of memory is organized as 32,768 words by 8 bits. Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers access times to 70 ns with power dissipation of just 275 mW. When the device is deselected, the CMOS standby current is less than 300 μA. The device endurance is such that any sector can typically be written to in excess of 10,000 times.
To allow for simple in-system reprogrammability, the AT29C257 does not require high input voltages for programming. Five-volt-only commands determine the operation of the device. Reading data out of the device is similar to reading from a static RAM. Reprogramming the AT29C257 is performed on a page basis; 64-bytes of data are loaded into the device and then simultaneously programmed. The contents of the entire device may be erased by using a 6-byte software code (although erasure before programming is not needed).
During a reprogram cycle, the address locations and 64-bytes of data are internally latched, freeing the address and data bus for other operations. Following the initiation of a program cycle, the device will automatically erase the page and then program the latched data using an internal control timer. The end of a program cycle can be detected by DATA polling of I/O7. Once the end of a program cycle has been detected a new access for a read, program or chip erase can begin.
Features
? Fast Read Access Time - 70 ns
? 5-Volt-Only Reprogramming
? Page Program Operation
Single Cycle Reprogram (Erase and Program)
Internal Address and Data Latches for 64-Bytes
? Internal Program Control and Timer
? Hardware and Software Data Protection
? Fast Program Cycle Times
Page (64-Byte) Program Time - 10 ms
Chip Erase Time - 10 ms
? DATA Polling for End of Program Detection
? Low Power Dissipation
50 mA Active Current
300 μA CMOS Standby Current
? Typical Endurance > 10,000 Cycles
? Single 5V ± 10 Supply
? CMOS and TTL Compatible Inputs and Outputs
? Pin-Compatible with AT29C010A and AT29C512 for Easy System Upgrades
產(chǎn)品屬性
- 產(chǎn)品編號：
AT29C257-12JI
- 制造商：
Microchip Technology
- 類別：
集成電路（IC） > 存儲(chǔ)器
- 包裝：
管件
- 存儲(chǔ)器類型：
非易失
- 存儲(chǔ)器格式：
閃存
- 技術(shù)：
閃存
- 存儲(chǔ)容量：
256Kb（32K x 8）
- 存儲(chǔ)器接口：
并聯(lián)
- 寫周期時(shí)間 - 字，頁：
10ms
- 電壓 - 供電：
4.5V ~ 5.5V
- 工作溫度：
-40°C ~ 85°C（TC）
- 安裝類型：
表面貼裝型
- 封裝/外殼：
32-LCC（J 形引線）
- 供應(yīng)商器件封裝：
32-PLCC（13.97x11.43）
- 描述：
IC FLASH 256KBIT PARALLEL 32PLCC
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
ATMEL |
2016+ |
PLCC32 |
9000 |
只做原裝,假一罰十,公司可開17%增值稅發(fā)票! |
詢價(jià) | ||
ATMEL/愛特梅爾 |
1948+ |
PLCC |
6852 |
只做原裝正品現(xiàn)貨!或訂貨假一賠十! |
詢價(jià) | ||
Microchip Technology |
21+ |
32-LCC(J 形引線) |
576 |
100%進(jìn)口原裝!長期供應(yīng)!絕對優(yōu)勢價(jià)格(誠信經(jīng)營 |
詢價(jià) | ||
AT |
22+ |
PLCC |
30000 |
十七年VIP會(huì)員,誠信經(jīng)營，一手貨源，原裝正品可零售！ |
詢價(jià) | ||
AT |
23+ |
PLCC |
3500 |
原裝正品假一罰百!可開增票! |
詢價(jià) | ||
AT |
24+ |
PLCC |
35200 |
一級代理/放心采購 |
詢價(jià) | ||
ATMEL |
24+ |
PLCC-32 |
2630 |
詢價(jià) | |||
ATMEL/愛特梅爾 |
24+ |
PLCC |
40 |
只做原廠渠道 可追溯貨源 |
詢價(jià) | ||
ATMEL |
24+ |
PLCC32 |
1000 |
詢價(jià) | |||
Atmel |
23+ |
32-PLCC |
39257 |
專業(yè)分銷產(chǎn)品!原裝正品!價(jià)格優(yōu)勢! |
詢價(jià) |
