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参数资料
| 型号： | 25LC256T-E/ST |
| 厂商： | Microchip Technology |
| 文件页数： | 1/26页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 256KBIT 10MHZ 8TSSOP |
| 标准包装： | 2,500 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 256K (32K x 8) |
| 速度： | 10MHz |
| 接口： | SPI 3 线串行 |
| 电源电压： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 8-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-TSSOP |
| 包装： | 带卷 (TR) |
25AA256/25LC256
256K SPI Bus Serial EEPROM
Device Selection Table
Part Number
25LC256
25AA256
V CC Range
2.5-5.5V
1.8-5.5V
Page Size
64 Byte
64 Byte
Temp. Ranges
I, E
I
Packages
P, SN, SM, ST, MF
P, SN, SM, ST, MF
(P, SN, SM)
Features:
? Max. Clock 10 MHz
? Low-Power CMOS Technology:
- Max. Write Current: 5 mA at 5.5V, 10 MHz
- Read Current: 6 mA at 5.5V, 10 MHz
- Standby Current: 1 μ A at 5.5V
? 32,768 x 8-bit Organization
? 64-Byte Page
? Self-Timed Erase and Write Cycles (5 ms max.)
? Block Write Protection:
- Protect none, 1/4, 1/2 or all of array
? Built-In Write Protection:
- Power-on/off data protection circuitry
- Write enable latch
- Write-protect pin
? Sequential Read
? High Reliability:
- Endurance: 1,000,000 erase/write cycles
Description:
The Microchip Technology Inc. 25AA256/25LC256
(25XX256 * ) are 256 Kbit Serial Electrically Erasable
PROMs. The memory is accessed via a simple Serial
Peripheral Interface (SPI) compatible serial bus. The
bus signals required are a clock input (SCK) plus sep-
arate data in (SI) and data out (SO) lines. Access to the
device is controlled through a Chip Select (CS) input.
Communication to the device can be paused via the
hold pin (HOLD). While the device is paused,
transitions on its inputs will be ignored, with the
exception of Chip Select, allowing the host to service
higher priority interrupts.
The 25XX256 is available in standard packages
including 8-lead PDIP and SOIC, and advanced
packaging including 8-lead DFN and 8-lead TSSOP.
Package Types (not to scale)
DFN PDIP/SOIC
(MF)
- Data retention: > 200 years
- ESD protection: > 4000V
? Temperature Ranges Supported:
- Industrial (I): -40 ° C to +85 ° C
- Automotive (E): -40°C to +125°C
CS 1
SO 2
WP 3
V SS 4
8
7
6
5
V CC
HOLD
SCK
SI
CS
SO
WP
V SS
1
2
3
4
8
7
6
5
V CC
HOLD
SCK
SI
? Pb-Free and RoHS Compliant
Pin Function Table
Rotated TSSOP
(ST)
Name
CS
SO
Function
Chip Select Input
Serial Data Output
HOLD
V CC
CS
SO
1
2
3
4
8
7
6
5
SCK
SI
V SS
WP
WP
Write-Protect
V SS
SI
Ground
Serial Data Input
TSSOP
(ST)
SCK
HOLD
V CC
Serial Clock Input
Hold Input
Supply Voltage
CS
SO
WP
V SS
1
2
3
4
8
7
6
5
V CC
HOLD
SCK
SI
* 25XX256 is used in this document as a generic part number for the 25AA256, 25LC256 devices.
? 2007 Microchip Technology Inc.
DS21822F-page 1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 25LC256T-ESTG | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:256K SPI Bus Serial EEPROM |
| 25LC256T-H/SN | 功能描述:电可擦除可编程只读存储器 256K, 32K X 8, 2.5V SER EE 150C 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 |
| 25LC256T-I | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:256K SPI Bus Serial EEPROM |
| 25LC256T-I/MF | 功能描述:电可擦除可编程只读存储器 32kx8 - 2.5V 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 |
| 25LC256T-I/SM | 功能描述:电可擦除可编程只读存储器 256k 32KX8 2.5V SER EE IND 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 |
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