参数资料
| 型号： | AT93C46DN-SH-T |
| 厂商： | Atmel |
| 文件页数： | 5/21页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 1KBIT 2MHZ 8SOIC |
| 标准包装： | 1 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 1K（128 x 8 或 64 x 16） |
| 速度： | 250kHz，1MHz，2MHz |
| 接口： | Microwire 3 线串行 |
| 电源电压： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 标准包装 |
| 其它名称： | AT93C46DN-SH-TDKR |
AT93C46D
Table 1-4.
Instruction Set for the AT93C46D
Op
Address
Data
Instruction
READ
EWEN
ERASE
WRITE
ERAL
WRAL
EWDS
SB
1
1
1
1
1
1
1
Code
10
00
11
01
00
00
00
x8
A 6 – A 0
11XXXXX
A 6 – A 0
A 6 – A 0
10XXXXX
01XXXXX
00XXXXX
x 16
A 5 – A 0
11XXXX
A 5 – A 0
A 5 – A 0
10XXXX
01XXXX
00XXXX
x8
D 7 – D 0
D 7 – D 0
x 16
D 15 – D 0
D 15 – D 0
Comments
Reads data stored in memory, at
specified address
Write enable must precede all
programming modes
Erases memory location A n – A 0
Writes memory location A n – A 0
Erases all memory locations. Valid
only at V CC = 4.5V to 5.5V
Writes all memory locations. Valid
only at V CC = 4.5V to 5.5V
Disables all programming instructions
Note:
The Xs in the address field represent DON’T CARE values and must be clocked.
2. Functional Description
The AT93C46D is accessed via a simple and versatile three-wire serial communication inter-
face. Device operation is controlled by seven instructions issued by the host processor. A valid
instruction starts with a rising edge of CS and consists of a start bit (logic “1”) followed by the
appropriate op code and the desired memory address location.
READ (READ): The Read (READ) instruction contains the address code for the memory loca-
tion to be read. After the instruction and address are decoded, data from the selected memory
location is available at the serial output pin DO. Output data changes are synchronized with the
rising edges of serial clock SK. It should be noted that a dummy bit (logic “0”) precedes the 8- or
16-bit data output string.
ERASE/WRITE ENABLE (EWEN): To assure data integrity, the part automatically goes into the
Erase/Write Disable (EWDS) state when power is first applied. An Erase/Write Enable (EWEN)
instruction must be executed first before any programming instructions can be carried out.
Please note that once in the EWEN state, programming remains enabled until an EWDS instruc-
tion is executed or V CC power is removed from the part.
ERASE (ERASE): The Erase (ERASE) instruction programs all bits in the specified memory
location to the logical “1” state. The self-timed erase cycle starts once the Erase instruction and
address are decoded. The DO pin outputs the Ready/Busy status of the part if CS is brought
high after being kept low for a minimum of 250 ns (t CS ). A logic “1” at pin DO indicates that the
selected memory location has been erased and the part is ready for another instruction.
WRITE (WRITE): The Write (WRITE) instruction contains the 8 or 16 bits of data to be written
into the specified memory location. The self-timed programming cycle t WP starts after the last bit
of data is received at serial data input pin DI. The DO pin outputs the Read/Busy status of the
part if CS is brought high after being kept low for a minimum of 250 ns (t CS ). A logic “0” at DO
indicates that programming is still in progress. A logic “1” indicates that the memory location at
the specified address has been written with the data pattern contained in the instruction and the
5
5193F–SEEPR–1/08
相关PDF资料 |
PDF描述 |
|---|---|
| AT24C01BN-SH-T | IC EEPROM 1KBIT 1MHZ 8SOIC |
| A3PE1500-PQ208 | IC FPGA 1KB FLASH 1.5M 208-PQFP |
| M1A3PE1500-PQG208 | IC FPGA 1KB FLASH 1.5M 208-PQFP |
| ASC35DRAI | CONN EDGECARD 70POS .100 R/A DIP |
| ACB35DHBR | CONN EDGECARD 70POS R/A .050 DIP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT93C46DN-SH-T | 制造商:Atmel Corporation 功能描述:Serial EEPROM IC |
| AT93C46D-PU | 功能描述:电可擦除可编程只读存储器 1K 3-WIRE 128 x 8 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 |
| AT93C46D-TH-B | 功能描述:电可擦除可编程只读存储器 1K 3-WIRE 128 x 8 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 |
| AT93C46D-TH-B | 制造商:Atmel Corporation 功能描述:Serial EEPROM IC |
| AT93C46D-TH-T | 功能描述:电可擦除可编程只读存储器 8 PDIP 1.8V- 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 |
发布紧急采购，3分钟左右您将得到回复。