您的位置：维库电子市场网 > Datasheet > 93AA46A

93AA46A Datasheet

  • 93AA46A

  • 1K Microwire Compatible Serial EEPROM

  • 1002.08KB

  • 34页

  • Microchip   Microchip

阅览下载 纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

93AA46A/B/C, 93LC46A/B/C, 93C46A/B/C
2.0
FUNCTIONAL DESCRIPTION
2.3
Data Protection
When the ORG* pin is connected to V
CC
, the (x16)
organization is selected. When it is connected to
ground, the (x8) organization is selected. Instructions,
addresses and write data are clocked into the DI pin on
the rising edge of the clock (CLK). The DO pin is
normally held in a HIGH-Z state except when reading
data from the device, or when checking the READY/
BUSY status during a programming operation. The
READY/BUSY status can be verified during an Erase/
Write operation by polling the DO pin; DO low indicates
that programming is still in progress, while DO high
indicates the device is ready. DO will enter the HIGH-Z
state on the falling edge of CS.
All modes of operation are inhibited when V
CC
is below
a typical voltage of 1.5V for '93AA' and '93LC' devices
or 3.8V for '93C' devices.
The EWEN and EWDS commands give additional
protection against accidentally programming during
normal operation.
Note:
For added protection, an EWDS command
should be performed after every write
operation.
After power-up, the device is automatically in the
EWDS mode. Therefore, an
EWEN
instruction must be
performed before the initial
ERASE
or
WRITE
instruction
can be executed.
2.1
Start Condition
Block Diagram
V
CC
V
SS
Address
Decoder
The Start bit is detected by the device if CS and DI are
both high with respect to the positive edge of CLK for
the first time.
Before a Start condition is detected, CS, CLK, and DI
may change in any combination (except to that of a
Start condition), without resulting in any device
operation (READ, WRITE, ERASE, EWEN, EWDS,
ERAL, or WRAL). As soon as CS is high, the device is
no longer in Standby mode.
An instruction following a Start condition will only be
executed if the required opcode, address and data bits
for any particular instruction are clocked in.
Memory
Array
Address
Counter
Data Register
DI
ORG*
CS
CLK
Mode
Decode
Logic
Clock
Register
Output
Buffer
DO
2.2
Data In/Data Out (DI/DO)
It is possible to connect the Data In and Data Out pins
together. However, with this configuration it is possible
for a 鈥渂us conflict鈥?to occur during the 鈥渄ummy zero鈥?/div>
that precedes the READ operation, if A0 is a logic high
level. Under such a condition the voltage level seen at
Data Out is undefined and will depend upon the relative
impedances of Data Out and the signal source driving
A0. The higher the current sourcing capability of A0,
the higher the voltage at the Data Out pin. In order to
limit this current, a resistor should be connected
between DI and DO.
*ORG input is not available on A/B devices
铮?/div>
2003 Microchip Technology Inc.
DS21749D-page 5

93AA46A相关型号PDF文件下载

  • 型号
    版本
    描述
    厂商
    下载
  • 93AA46
    英文版
    1K/2K/4K 1.8V Microwire Serial EEPROM
    Microchip
    93AA46
  • 93AA46
    英文版
    1K/2K/4K 1.8V Microwire Serial EEPROM
    MICROCHIP ...
    93AA46
  • 93AA56
    英文版
    1K/2K/4K 1.8V Microwire Serial EEPROM
    ETC
    93AA56
  • 93AA56
    英文版
    1K/2K/4K 1.8V Microwire Serial EEPROM
    Microchip
    93AA56
  • 93AA56
    英文版
    1K/2K/4K 1.8V Microwire Serial EEPROM
    MICROCHIP ...
    93AA56
  • 93AA66
    英文版
    1K/2K/4K 1.8V Microwire Serial EEPROM
    ETC
    93AA66
  • 93AA66
    英文版
    1K/2K/4K 1.8V Microwire Serial EEPROM
    Microchip
    93AA66
  • 93AA66
    英文版
    1K/2K/4K 1.8V Microwire Serial EEPROM
    MICROCHIP ...
    93AA66
  • 93AA76
    英文版
    Serial EEPROM
    ETC
    93AA76
  • 93AA76
    英文版
    8K/16K 1.8V Microwire Serial EEPROM
    Microchip
    93AA76
  • 93AA76
    英文版
    8K/16K 1.8V Microwire Serial EEPROM
    MICROCHIP ...
    93AA76
  • 93AA86
    英文版
    Serial EEPROM
    ETC
    93AA86
  • 93AA86
    英文版
    8K/16K 1.8V Microwire Serial EEPROM
    Microchip
    93AA86
  • 93AA86
    英文版
    8K/16K 1.8V Microwire Serial EEPROM
    MICROCHIP ...
    93AA86
  • 93AA46A
    英文版
    1K Microwire Compatible Serial EEPROM
    Microchip
    93AA46A
  • 93AA46A
    英文版
    1K Microwire Compatible Serial EEPROM
    MICROCHIP ...
    93AA46A
  • 93AA46B
    英文版
    1K Microwire Compatible Serial EEPROM
    Microchip
    93AA46B
  • 93AA46B
    英文版
    1K Microwire Compatible Serial EEPROM
    MICROCHIP ...
    93AA46B
  • 93AA46C
    英文版
    1K Microwire Compatible Serial EEPROM
    Microchip
    93AA46C
  • 93AA46C
    英文版
    1K Microwire Compatible Serial EEPROM
    MICROCHIP ...
    93AA46C

您可能感兴趣的PDF文件资料

热门IC型号推荐

©2024 维库电子市场网（www.dzsc.com）　备案号：浙B2-20050339-1 经营许可证：浙B2-20210386版权声明
买家服务热线：0571-85317607 | 买家服务部QQ： QQ:1609526468
卖家服务热线：0571-85317607 | 卖家服务部QQ： QQ:331652727

扫码下载APP，
一键连接广大的电子世界。

在线人工客服

买家服务：
卖家服务：

0571-85317607

客服在线时间周一至周五
9:00-17:30

关注官方微信号，
第一时间获取资讯。

建议反馈
返回顶部

建议反馈

联系人：

联系方式：

按住滑块，拖拽到最右边
>>
感谢您向阿库提出的宝贵意见，您的参与是维库提升服务的动力！意见一经采纳，将有感恩红包奉上哦！

PDF纠错X

投诉电话：0571-85317607 投诉QQ：

如选匿名将无法为您反馈投诉结果，建议实名投诉！