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A29400UM-70F

更新时间： 2024-11-04 13:02:47
品牌 Logo 应用领域
联笙电子 - AMICC 闪存存储内存集成电路光电二极管
页数 文件大小 规格书
33页 499K
描述
Flash, 256KX16, 70ns, PDSO44, SOP-44

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A29400UM-70F 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：SOP, SOP44,.63Reach Compliance Code：unknown
风险等级：5.84最长访问时间：70 ns
备用内存宽度：8启动块：BOTTOM
命令用户界面：YES数据轮询：YES
耐久性：100000 Write/Erase CyclesJESD-30 代码：R-PDSO-G44
长度：28.5 mm内存密度：4194304 bit
内存集成电路类型：FLASH内存宽度：16
功能数量：1部门数/规模：1,2,1,7
端子数量：44字数：262144 words
字数代码：256000工作模式：ASYNCHRONOUS
最高工作温度：70 °C最低工作温度：
组织：256KX16封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP44,.63
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
并行/串行：PARALLEL电源：5 V
编程电压：5 V认证状态：Not Qualified
就绪/忙碌：YES座面最大高度：3 mm
部门规模：16K,8K,32K,64K最大待机电流：0.000005 A
子类别：Flash Memories最大压摆率：0.04 mA
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：4.5 V
标称供电电压 (Vsup)：5 V表面贴装：YES
技术：CMOS温度等级：COMMERCIAL
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL切换位：YES
类型：NOR TYPE宽度：12.6 mm
Base Number Matches：1

A29400UM-70F 数据手册

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A29400 Series  
512K X 8 Bit / 256K X 16 Bit CMOS 5.0 Volt-only,  
Boot Sector Flash Memory  
Preliminary  
Features  
nTypical 100,000 program/erase cycles per sector  
n20-year data retention at 125°C  
n5.0V ± 10% for read and write operations  
nAccess times:  
- 55/70/90 (max.)  
nCurrent:  
- Reliable operation for the life of the system  
nCompatible with JEDEC-standards  
- 20 mA typical active read current  
- 30 mA typical program/erase current  
- 1 mA typical CMOS standby  
- Pinout and software compatible with single-power-  
supply Flash memory standard  
- Superior inadvertent write protection  
nFlexible sector architecture  
n
Polling and toggle bits  
- Provides a software method of detecting completion  
of program or erase operations  
Data  
- 16 Kbyte/ 8 KbyteX2/ 32 Kbyte/ 64 KbyteX7 sectors  
- 8 Kword/ 4 KwordX2/ 16 Kword/ 32 KwordX7 sectors  
- Any combination of sectors can be erased  
- Supports full chip erase  
nErase Suspend/Erase Resume  
- Suspends a sector erase operation to read data from,  
or program data to, a non-erasing sector, then  
resumes the erase operation  
- Sector protection:  
A hardware method of protecting sectors to prevent  
any inadvertent program or erase operations within  
that sector  
nHardware reset pin (  
)
RESET  
- Hardware method to reset the device to reading array  
nTop or bottom boot block configurations available  
nEmbedded Erase Algorithms  
data  
nPackage options  
- 44-pin SOP or 48-pin TSOP (I)  
- Embedded Erase algorithm will automatically erase  
the entire chip or any combination of designated  
sectors and verify the erased sectors  
- Embedded Program algorithm automatically writes  
and verifies bytes at specified addresses  
General Description  
The device requires only a single 5.0 volt power supply for both  
read and write functions. Internally generated and regulated  
voltages are provided for the program and erase operations.  
The A29400 is entirely software command set compatible with  
the JEDEC single-power-supply Flash standard. Commands are  
written to the command register using standard microprocessor  
write timings. Register contents serve as input to an internal  
state-machine that controls the erase and programming circuitry.  
Write cycles also internally latch addresses and data needed for  
the programming and erase operations. Reading data out of the  
device is similar to reading from other Flash or EPROM devices.  
Device programming occurs by writing the proper program  
command sequence. This initiates the Embedded Program  
algorithm - an internal algorithm that automatically times the  
program pulse widths and verifies proper program margin.  
Device erasure occurs by executing the proper erase command  
sequence. This initiates the Embedded Erase algorithm - an  
internal algorithm that automatically preprograms the array (if it is  
not already programmed) before executing the erase operation.  
During erase, the device automatically times the erase pulse  
widths and verifies proper erase margin.  
The A29400 is a 5.0 volt only Flash memory organized as  
524,288 bytes of 8 bits or 262,144 words of 16 bits each. The  
A29400 offers the  
function. The 512 Kbytes of data  
RESET  
are further divided into eleven sectors for flexible sector erase  
capability. The 8 bits of data appear on I/O0 - I/O7 while the  
addresses are input on A1 to A17; the 16 bits of data appear  
on I/O0~I/O15. The A29400 is offered in 44-pin SOP and 48-Pin  
TSOP packages. This device is designed to be programmed in-  
system with the standard system 5.0 volt VCC supply.  
Additional 12.0 volt VPP is not required for in-system write or  
erase operations. However, the A29400 can also be  
programmed in standard EPROM programmers.  
The A29400 has the first toggle bit, I/O6, which indicates  
whether an Embedded Program or Erase is in progress, or it is  
in the Erase Suspend. Besides the I/O6 toggle bit, the A29400  
has a second toggle bit, I/O2, to indicate whether the addressed  
sector is being selected for erase. The A29400 also offers the  
ability to program in the Erase Suspend mode. The standard  
A29400 offers access times of 55, 70 and 90 ns, allowing high-  
speed microprocessors to operate without wait states. To  
eliminate bus contention the device has separate chip enable  
(
), write enable (  
) and output enable (  
) controls.  
OE  
WE  
CE  
PRELIMINARY  
(February, 2001, Version 0.1)  
1
AMIC Technology, Inc.  
1234567...33

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