- 您现在的位置：买卖IC网 > PDF目录42428 > 93LC76CT-I/STG 512 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 PDF资料下载
参数资料
| 型号： | 93LC76CT-I/STG |
| 元件分类： | PROM |
| 英文描述： | 512 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 |
| 封装： | 4.40 MM, ROHS COMPLIANT, PLASTIC, TSSOP-8 |
| 文件页数： | 24/28页 |
| 文件大小： | 518K |
| 代理商： | 93LC76CT-I/STG |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页当前第24页第25页第26页第27页第28页
2008 Microchip Technology Inc.
DS21796K-page 5
93AA76A/B/C, 93LC76A/B/C, 93C76A/B/C
2.0
FUNCTIONAL DESCRIPTION
When the ORG pin (93XX76C) is connected to VCC,
the (x16) organization is selected. When it is connected
to ground, the (x8) organization is selected. Instruc-
tions, 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.
2.1
Start Condition
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.
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 “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 the
driver, the higher the voltage at the Data Out pin. In
order to limit this current, a resistor should be
connected between DI and DO.
2.3
Data Protection
All modes of operation are inhibited when VCC 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.
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.
Block Diagram
Note:
When preparing to transmit an instruction,
either the CLK or DI signal levels must be
at a logic low as CS is toggled active high.
Note:
For added protection, an EWDS command
should be performed after every write
operation and an external 10 k
Ω pull-down
protection resistor should be added to the
CS pin.
Note:
To prevent accidental writes to the array in
the 93XX76C devices, set the PE pin to a
logic low.
Memory
Array
Data Register
Mode
Decode
Logic
Clock
Register
Address
Decoder
Address
Counter
Output
Buffer
DO
DI
ORG*
CS
CLK
VCC
VSS
*ORG and PE inputs are not available on
PE*
A/B devices.
相关PDF资料 |
PDF描述 |
|---|---|
| 93C76A-E/OT | 1K X 8 MICROWIRE BUS SERIAL EEPROM, PDSO6 |
| 93LC76C-I/STG | 512 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 |
| 93LC76BT-E/OT | 512 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO6 |
| 93AA76CT-I/SNG | 512 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 |
| 93C76C-E/STG | 512 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 93LC76-I/P | 功能描述:电可擦除可编程只读存储器 516x8 Or 1024x8 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 |
| 93LC76-I/SN | 功能描述:电可擦除可编程只读存储器 516x8 Or 1024x8 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 |
| 93LC76T/SN | 功能描述:电可擦除可编程只读存储器 516x8 Or 1024x8 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 |
| 93LC76T-I/SN | 功能描述:电可擦除可编程只读存储器 516x8 Or 1024x8 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 |
| 93LC86/P | 功能描述:电可擦除可编程只读存储器 1024x16-2048x8 PDIP8 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 |
发布紧急采购，3分钟左右您将得到回复。