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參數(shù)資料
| 型號(hào)： | CAT28HT256 |
| 英文描述： | 256K-Bit CMOS Parallel EEPROM(5V,快速，低功耗，256K位（32K x 8位）并行CMOS EEPROM) |
| 中文描述： | 256K位CMOS并行的EEPROM（5V的，快速，低功耗，256K位（32K的× 8位）并行的CMOS EEPROM的） |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大?。?/td> | 218K |
| 代理商： | CAT28HT256 |
8-91
CAT28HT256
256K-Bit CMOS PARALLEL E
2
PROM
FEATURES
I
Fast Read Access Times: 200/250 ns
I
Low Power CMOS Dissipation:
–Active: 30 mA Max.
–Standby: 150
μ
A Max.
I
Simple Write Operation:
–On-Chip Address and Data Latches
–Self-Timed Write Cycle with Auto-Clear
I
Fast Write Cycle Time:
–10ms Max
I
CMOS and TTL Compatible I/O
I
Automatic Page Write Operation:
–1 to 64 Bytes in 10ms
–Page Load Timer
I
End of Write Detection:
–Toggle Bit
–
DATA
Polling
I
Hardware and Software Write Protection
I
100,000 Program/Erase Cycles
I
100 Year Data Retention
DESCRIPTION
The CAT28HT256 is a fast, low power, 5V-only CMOS
parallel E
2
PROM organized as 32K x 8-bits. It requires
a simple interface for in-system programming. On-chip
address and data latches, self-timed write cycle with
auto-clear and V
CC
power up/down write protection
eliminate additional timing and protection hardware.
DATA
Polling and Toggle status bits signal the start and
end of the self-timed write cycle. Additionally, the
CAT28HT256 features hardware and software write
protection as well as an internal Error Correction Code
(ECC) for extremely high reliability.
The CAT28HT256 is manufactured using Catalyst’s
advanced CMOS floating gate technology. It is designed
to endure 100,000 program/erase cycles and has a data
retention of 100 years. The device is available in JEDEC
approved 28-pin Ceramic DIP package.
BLOCK DIAGRAM
5096 FHD F02
1998 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Advanced
Extended Temperature: 170C
ADDR. BUFFER
& LATCHES
ADDR. BUFFER
& LATCHES
INADVERTENT
WRITE
PROTECTION
CONTROL
LOGIC
TIMER
ROW
DECODER
COLUMN
DECODER
HIGH VOLTAGE
GENERATOR
A6–A14
CE
OE
WE
A0–A5
I/O0–I/O7
I/O BUFFERS
32,768 x 8
E
2
PROM
ARRAY
64 BYTE PAGE
REGISTER
VCC
DATA POLLING
AND
TOGGLE BIT
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT28LV256G25 | 功能描述:電可擦除可編程只讀存儲(chǔ)器 (32kx8) 256K 3V 250 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT28LV256G-25 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT28LV256G-25T | 功能描述:電可擦除可編程只讀存儲(chǔ)器 256K-Bit Parallel 電可擦除可編程只讀存儲(chǔ)器 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT28LV256G-30 | 功能描述:電可擦除可編程只讀存儲(chǔ)器 (32kx8) 256K 3V 300 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT28LV256G-30T | 功能描述:電可擦除可編程只讀存儲(chǔ)器 256K-Bit Parallel 電可擦除可編程只讀存儲(chǔ)器 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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