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參數資料
| 型號： | CAT28LV256NA-25T |
| 元件分類： | PROM |
| 英文描述： | 32K X 8 EEPROM 3V, 250 ns, PQCC32 |
| 封裝： | PLASTIC, LCC-32 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 66K |
| 代理商： | CAT28LV256NA-25T |
1
s CMOS and TTL Compatible I/O
s Automatic Page Write Operation:
– 1 to 64 Bytes in 10ms
– Page Load Timer
s End of Write Detection:
– Toggle Bit
–
DATA
DATA Polling
s Hardware and Software Write Protection
s 100,000 Program/Erase Cycles
s 100 Year Data Retention
FEATURES
s 3.0V to 3.6V Supply
s Read Access Times: 200/250/300 ns
s Low Power CMOS Dissipation:
– Active: 15 mA Max.
– Standby: 150
A Max.
s Simple Write Operation:
– On-Chip Address and Data Latches
– Self-Timed Write Cycle with Auto-Clear
s Fast Write Cycle Time:
– 10ms Max.
s Commercial, Industrial and Automotive
Temperature Ranges
CAT28LV256
256K-Bit CMOS PARALLEL E2PROM
DESCRIPTION
The CAT28LV256 is a fast, low power, low voltage
CMOS Parallel E2PROM 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 VCC 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
CAT28LV256 features hardware and software write
protection.
The CAT28LV256 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 DIP, 28-pin TSOP or 32-pin PLCC
packages.
BLOCK DIAGRAM
28LV256 F01
2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
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
E2PROM
ARRAY
64 BYTE PAGE
REGISTER
VCC
DATA POLLING
AND
TOGGLE BIT
Doc. No. 1071, Rev. B
HA
LOGEN FREE
TM
LEAD FREE
相關PDF資料 |
PDF描述 |
|---|---|
| CAT28LV256NI-20 | 32K X 8 EEPROM 3V, 200 ns, PQCC32 |
| CAT28LV256P-35 | 32K X 8 EEPROM 3V, 350 ns, PDIP28 |
| CAT29F150N-15B | 13 Output, 3.3V SDRAM Buffer for Desktop PCs with 3 DIMMs |
| CAT29F150N-15T | 18 Output, 3.3V SDRAM Buffer for Desktop PCs with 4 DIMMs |
| CAT29F150N-20B | x8 Flash EEPROM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CAT28LV256NI25 | 制造商:Catalyst Semiconductor 功能描述: |
| CAT28LV256NI-25 | 功能描述:電可擦除可編程只讀存儲器 (32kx8) 256K 3V RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數據保留:100 yr 最大時鐘頻率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT28LV256NI-30 | 功能描述:電可擦除可編程只讀存儲器 (32kx8) 256K 3V RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數據保留:100 yr 最大時鐘頻率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT28LV256P-25 | 功能描述:電可擦除可編程只讀存儲器 (32kx8) 256K 3V RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數據保留:100 yr 最大時鐘頻率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT28LV256P-30 | 功能描述:電可擦除可編程只讀存儲器 (32kx8) 256K 3V RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數據保留:100 yr 最大時鐘頻率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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