參數(shù)資料
型號(hào)： LRS1805A
廠商： Sharp Corporation
英文描述： Stacked Chip 64M (x16) Flash Memory + 16M (x16) Smartcombo RAM
中文描述： 堆疊芯片64M號(hào)（x16）的閃存16M內(nèi)存（× 16）Smartcombo內(nèi)存
文件頁(yè)數(shù)： 41/57頁(yè)
文件大小： 1373K
代理商： LRS1805A
LRS1805A
39
16. Design Considerations
1. Power Supply Decoupling
To avoid a bad effect to the system by flash memory and Smartcombo RAM power switching characteristics, each
device should have a 0.1μF ceramic capacitor connected between F-V
CC
and GND, between F-V
PP
and GND and
between S-V
CC
and GND.
Low inductance capacitors should be placed as close as possible to package leads.
2. F-V
PP
Trace on Printed Circuit Boards
Updating the memory contents of flash memories that reside in the target system requires that the printed circuit board
designer pay attention to the F-V
PP
Power Supply trace. Use similar trace widths and layout considerations given to the F-
V
CC
power bus.
3. The Inhibition of Overwrite Operation
Please do not execute reprograming “0” for the bit which has already been programed “0”. Overwrite operation may
generate unerasable bit.
In case of reprograming “0” to the data which has been programed “1”.
Program “0” for the bit in which you want to change data from “1” to “0”.
Program “1” for the bit which has already been programed “0”.
For example, changing data from “1011110110111101” to “1010110110111100”
requires “1110111111111110” programing.
4. Power Supply
Block erase, full chip erase, word write with an invalid F-V
PP
(See Chapter 11. DC Electrical Characteristics) produce
spurious results and should not be attempted.
Device operations at invalid F-V
CC
voltage (See Chapter 11. DC Electrical Characteristics) produce spurious results
and should not be attempted.
17. Related Document Information
(1)
Document No.
Note:
1. International customers should contact their local SHARP or distribution sales offices.
Document Name
FUM00701
LH28F320BF, LH28F640BF Series Appendix
sharp
相關(guān)PDF資料
PDF描述
LRS250 LIGHT EMITTING DIODES
LRS250-DO LIGHT EMITTING DIODES
LRZ180-CO Array LED 2 mm LED, Diffused
LS-3101S Thyratrons
LS0BB-1HT Surface Mountable Illuminated Switch
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LRS1806A 制造商:Sharp Microelectronics Corporation 功能描述:COMBO 4MX16 FLASH + 1MX16 SRAM 2.7V TO 3.6V 72CSP - Trays
LRS1806C 制造商:Sharp Microelectronics Corporation 功能描述:COMBO 4MX16 FLASH + 1MX16 SRAM 3V 72CSP - Trays
LRS1808A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Flash ROM
LRS1828 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Flash ROM
LRS1832 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Flash ROM
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*