参数资料
| 型号： | 93AA86/SN |
| 厂商： | Microchip Technology |
| 文件页数： | 6/22页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 16KBIT 3MHZ 8SOIC |
| 标准包装： | 100 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 16K（2K x 8 或 1K x 16） |
| 速度： | 1MHz，2MHz，3MHz |
| 接口： | Microwire 3 线串行 |
| 电源电压： | 1.8 V ~ 6 V |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 管件 |
93AA76/86
2.0
PRINCIPLES OF OPERATION
2.3
Erase/Write Enable and Disable
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.
The DO will enter the high-impedance state on the falling
edge of the CS.
(EWEN, EWDS)
The 93AA76/86 powers up in the Erase/Write Disable
(EWDS) state. All programming modes must be
preceded by an Erase/Write Enable ( EWEN ) instruction.
Once the EWEN instruction is executed, programming
remains enabled until an EWDS instruction is executed
or V CC is removed from the device. To protect against
accidental data disturb, the EWDS instruction can be
used to disable all erase/write functions and should
follow all programming operations. Execution of a READ
instruction is independent of both the EWEN and EWDS
instructions.
2.1
Start Condition
2.4 Data Protection
During power-up, all programming modes of operation
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 opera-
tion (Read, Write, Erase, EWEN, EWDS, ERAL and
WRAL). As soon as CS is high, the device is no longer
in the Standby mode.
An instruction following a Start condition will only be
executed if the required amount of opcode, address
and data bits for any particular instruction are clocked
in.
After execution of an instruction (i.e., clock in or out of
the last required address or data bit) CLK and DI
become “don't care” bits until a new Start condition is
detected.
are inhibited until V CC has reached a level greater than
1.4V. During power-down, the source data protection
circuitry acts to inhibit all programming modes when
V CC has fallen below 1.4V.
The EWEN and EWDS commands give additional
protection against accidentally programming during
normal operation.
After power-up, the device is automatically in the
EWDS mode. Therefore, an EWEN instruction must be
performed before any ERASE or WRITE instruction can
be executed.
2.2
DI/DO
It is possible to connect the Data In and Data Out pins
together. However, with this configuration it is possible
for a “bus conflict” to occur during the “dummy zero”
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.
DS21130E-page 6
? 2004 Microchip Technology Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 93AA86T/SN | 功能描述:电可擦除可编程只读存储器 1024x16-2048x8 1.8V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| 93-B | 制造商:Farnell / Pro-Power 功能描述:LOCKNUT M20 制造商:pro-power 功能描述:LOCKNUT, M20 制造商:pro-power 功能描述:LOCKNUT, NYLON 6.6, M20 x 1.5; Thread Size - Metric:M20 x 1.5; Material:Nylon 6.6; Thickness:8mm; Accessory Type:Locknut; Cable Bundle Diameter Max:0.571"; Cable Bundle Diameter Min:0.157"; Fastener Material:Nylon 6.6; Type:Locknut ;RoHS Compliant: Yes |
| 93B/H | 制造商:Everlight Electronics Co 功能描述:LED, Stackable, Red, Diffused |
| 93C06 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:256 Bit/1K 5.0V CMOS Serial EEPROM |
| 93C06 WAF | 制造商:Microchip Technology Inc 功能描述: |
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