- 您现在的位置：买卖IC网 > PDF目录20094 > CAT28C256HI-12T (ON Semiconductor)IC EEPROM 256KBIT 120NS 28TSOP PDF资料下载
参数资料
| 型号： | CAT28C256HI-12T |
| 厂商： | ON Semiconductor |
| 文件页数： | 9/14页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 256KBIT 120NS 28TSOP |
| 标准包装： | 1 |
| 格式 - 存储器： | EEPROMs - 并行 |
| 存储器类型： | EEPROM |
| 存储容量： | 256K (32K x 8) |
| 速度： | 120ns |
| 接口： | 并联 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 28-TSSOP（0.465"，11.8mm 宽） |
| 供应商设备封装： | 28-TSOP（8x13.4） |
| 包装： | 标准包装 |
| 产品目录页面： | 808 (CN2011-ZH PDF) |
| 其它名称： | CAT28C256H13I-12TDKR CAT28C256H13I-12TDKR-ND CAT28C256HI-12TDKR |
CAT28C256
Hardware Data Protection
The following is a list of hardware data protection features
that are incorporated into the CAT28C256.
1. V CC sense provides for write protection when V CC
falls below 3.5 V min.
2. A power on delay mechanism, t INIT (see AC
characteristics), provides a 5 to 10 ms delay before
a write sequence, after V CC has reached 3.5 V
min.
3. Write inhibit is activated by holding any one of
OE low, CE high or WE high.
4. Noise pulses of less than 20 ns on the WE or CE
inputs will not result in a write cycle.
Software Data Protection
The CAT28C256 features a software controlled data
protection scheme which, once enabled, requires a data
algorithm to be issued to the device before a write can be
performed. The device is shipped from ON Semiconductor
with the software protection NOT ENABLED (the
CAT28C256 is in the standard operating mode).
WRITE DATA:
ADDRESS:
WRITE DATA:
ADDRESS:
WRITE DATA:
ADDRESS:
AA
5555
55
2AAA
A0
5555
WRITE DATA:
ADDRESS:
WRITE DATA:
ADDRESS:
WRITE DATA:
ADDRESS:
AA
5555
55
2AAA
80
5555
SOFTWARE DATA
PROTECTION ACTIVATED (Note 15)
WRITE DATA:
ADDRESS:
AA
5555
WRITE DATA:
XX
WRITE DATA:
55
TO ANY ADDRESS
WRITE LAST BYTE
TO
LAST ADDRESS
ADDRESS:
WRITE DATA:
ADDRESS:
2AAA
20
5555
Figure 10. Write Sequence for Activating
Software Data Protection
Figure 11. Write Sequence for Deactivating
Software Data Protection
15. Write protection is activated at this point whether or not any more writes are completed. Writing to addresses must occur within t BLC Max.,
after SDP activation.
http://onsemi.com
9
相关PDF资料 |
PDF描述 |
|---|---|
| HHR-30SCPY20F2X5 | BATTERY PACK NIMH 12.0V 3000 MAH |
| GMM43DTBH | CONN EDGECARD 86POS R/A .156 SLD |
| GSM43DTBD | CONN EDGECARD 86POS R/A .156 SLD |
| GJM1555C1H1R6CB01D | CAP CER 1.6PF 50V NP0 0402 |
| GBM12DRYI-S13 | CONN EDGECARD 24POS .156 EXTEND |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT28C256L12 | 功能描述:电可擦除可编程只读存储器 (32kx8) 256K 5V 120 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 |
| CAT28C256L-12 | 制造商:ON Semiconductor 功能描述:IC EEPROM 256KBIT PARALLEL DIP-28 |
| CAT28C256L15 | 功能描述:电可擦除可编程只读存储器 (32kx8) 256K 5V 150 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 |
| CAT28C256L-15 | 制造商:ON Semiconductor 功能描述:Serial EEPROM IC |
| CAT28C256LA-12 | 功能描述:电可擦除可编程只读存储器 (32kx8) 256K 5V 120 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。