購買 24LC256T-I/SN | 24LC256T-I/SN數據表 | Heisener.com
聯繫我們
SalesDept@heisener.com +86-755-83210559 ext. 805
登入/註冊
BOM
購物車 0

24LC256T-I/SN

hot 24LC256T-I/SN

24LC256T-I/SN

僅供參考

零件編號 24LC256T-I/SN
製造商 Microchip Technology
描述 IC EEPROM 256KBIT 400KHZ 8SOIC
數據表
封裝 8-SOIC (0.154", 3.90mm Width)
ECAD
庫存 233,496 piece(s)
單價 $ 1.0636 *
交貨期 可立即發貨
預計送達時間 十二月 4 - 十二月 9 (選擇速遞服務)
請求報價
支付方式
送貨服務
  • 我們提供的 24LC256T-I/SN 具有全球市場競爭力的價格，如有需要請發送詢價單給我們。謝謝！
  • 添加 24LC256T-I/SN 及其數量至BOM以便提交您的報價請求。 Heisener.com 無需註冊便可以提交 24LC256T-I/SN 的報價請求。

24LC256T-I/SN參數

製造商Microchip Technology
類別積體電路 (IC) - 記憶體
封裝8-SOIC (0.154", 3.90mm Width)
ECAD
系列-
記憶類型Non-Volatile
內存格式EEPROM
技術EEPROM
內存大小256Kb (32K x 8)
內存接口I2C
時鐘頻率400kHz
寫週期時間 - Word，Page5ms
訪問時間900ns
電壓 - 電源2.5 V ~ 5.5 V
工作溫度-40°C ~ 85°C (TA)
安裝類型Surface Mount
包/箱8-SOIC (0.154", 3.90mm Width)
供應商設備包8-SOIC

24LC256T-I/SN Packaging

Customized Labels
Sealing
Packing
Insepction

24LC256T-I/SN FAQ

  • 1. How to order 24LC256T-I/SN on Heisener?
    Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
  • 2. How does Heisener guarantee that 24LC256T-I/SN is from the original manufacturer or authorized agents?
    We have a professional and experienced quality control team to strictly verify and test the 24LC256T-I/SN. All suppliers must pass our qualification reviews before they can publish their products including 24LC256T-I/SN on Heisener; we pay more attention to the channels and quality of 24LC256T-I/SN products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
  • 3. Are the 24LC256T-I/SN price and inventory displayed accurate?
    The price and inventory of 24LC256T-I/SN fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
  • 4. What forms of payment are accepted?
    Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.
    Warm Tips: Some orders in certain payment forms may require handling fee.
  • 5. How is the shipping arranged?
    Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.
    Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.
    Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
  • 6. What is the process for return or replacement of 24LC256T-I/SN?
    All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the 24LC256T-I/SN we delivered, we will accept the replacement or return of the 24LC256T-I/SN only when all of the below conditions are fulfilled:
    (1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
    (2)We are informed of the defect described above within 90 days after the delivery of 24LC256T-I/SN.
    (3)The PartNo is unused and only in the original unpacked packaging.
    Two processes to return the products:
    (1)Inform us within 90 days
    (2)Obtain Requesting Return Authorizations
  • 7.How to contact us to get technical supports, such as 24LC256T-I/SN pin diagram, 24LC256T-I/SN datasheet?
    If you need any after-sales service, please do not hesitate to contact us.

24LC256T-I/SN相關產品

TSI620-10GCLV TSI620-10GCLV IDT, Integrated Device Technology Inc, IC SW SER RAPIDIO 675TEBGA, 675-BGA Exposed Pad, - 查看
HLS-05 HLS-05 Eaton, FUSE BLOCK BLADE 125V 15A PCB, -, - 查看
P51-100-G-B-I12-5V-000-000 P51-100-G-B-I12-5V-000-000 SSI Technologies Inc, SENSOR 100PSI 1/8-27NPT 1-5V, Cylinder, - 查看
RNF14DTD97K6 RNF14DTD97K6 Stackpole Electronics Inc., RES 97.6K OHM 1/4W .5% AXIAL, Axial, - 查看
D55342K07B1B50RT5 D55342K07B1B50RT5 Vishay Dale, RES SMD 1.5K OHM 0.1% 1/4W 1206, 1206 (3216 Metric), - 查看
RMCF0201FT6R98 RMCF0201FT6R98 Stackpole Electronics Inc., RES SMD 6.98 OHM 1% 1/20W 0201, 0201 (0603 Metric), - 查看
1331R-334H 1331R-334H API Delevan Inc., FIXED IND 330UH 53MA 16 OHM SMD, 2-SMD, - 查看
GRPB271VWTC-RC GRPB271VWTC-RC Sullins Connector Solutions, CONN HEADER .050" 27POS, -, - 查看
ACA3106G28-22PBF80 ACA3106G28-22PBF80 Amphenol Industrial Operations, ACB 6C 3#4 3#16 PIN PLUG, -, - 查看
HR30-8R-12S(71) HR30-8R-12S(71) Hirose Electric Co Ltd, CONN RECEPT 12POS FEMALE SOLDER, -, - 查看
MS3471W14-12AX MS3471W14-12AX TE Connectivity Deutsch Connectors, CONN RCPT HSNG MALE 12POS INLINE, -, - 查看
LCA50S-24 LCA50S-24 Cosel USA, Inc., AC/DC PS (OPEN FRAME), -, - 查看

24LC256T-I/SN 保證

Service Guarantee

服務保證

我們保證100％的客戶滿意度。

我們經驗豐富的銷售團隊和技術支持團隊支持我們的服務以滿足所有客戶。

Quality Guarantee

質量保證

我們提供90天保修。

如果您收到的物品質量不合格，我們將負責您的退款或更換，但物品必須以原始狀態退回。

全球供應鏈-可靠的授權分銷商資源

零件編號 製造商 描述 庫存

24LC256T-I/SN

D# E54:1762_00013354

 Microchip Technology Inc

EEPROM Serial-2Wire 256K-bit 32K x 8 3.3V/5V 8-Pin SOIC N T/R

RoHS: Compliant
 0

24LC256-I/SN

D# E54:1762_00013353

 Microchip Technology Inc

EEPROM Serial-2Wire 256K-bit 32K x 8 3.3V/5V 8-Pin SOIC N Tube

RoHS: Compliant
 0
零件編號 製造商 描述 庫存

24LC256T-I/SN

D# 27C9147

 Microchip Technology Inc

EEPROM Serial-I2C 256K-bit 32K x 8 3.3V/5V 8-Pin SOIC N T/R - Product that comes on tape, but is not reeled (Alt: 27C9147)

RoHS: Compliant
 0

24LC256-I/SN

D# 27C9144

 Microchip Technology Inc

EEPROM Serial-I2C 256K-bit 32K x 8 3.3V/5V 8-Pin SOIC N Tube - Bulk (Alt: 27C9144)

RoHS: Compliant
 0
零件編號 製造商 描述 庫存

24LC256T-I/SNRVF

D# 24LC256T-I/SNRVF

 Microchip Technology Inc

MCC24LC256T-I/SNRVF 256K, 32K X 8, 2.5V (Alt: 24LC256T-I/SNRVF)

RoHS: Compliant
 0

24LC256-I/SN

D# 24LC256-I/SN

 Microchip Technology Inc

EEPROM Serial-I2C 256K-bit 32K x 8 3.3V/5V 8-Pin SOIC N Tube (Alt: 24LC256-I/SN)

 0

24LC256T-I/SN

D# 24LC256T-I/SN

 Microchip Technology Inc

EEPROM Serial-I2C 256K-bit 32K x 8 3.3V/5V 8-Pin SOIC N T/R (Alt: 24LC256T-I/SN)

 0
零件編號 製造商 描述 庫存

24LC256T-I/SNG

D# 24LC256T-I/SNG

 Microchip Technology Inc

EEPROM Serial-I2C 256K-bit 32K x 8 3.3V/5V 8-Pin SOIC N T/R (Alt: 24LC256T-I/SNG)

 0

24LC256-I/SN

D# 24LC256-I/SN

 Microchip Technology Inc

EEPROM Serial-I2C 256K-bit 32K x 8 3.3V/5V 8-Pin SOIC N Tube (Alt: 24LC256-I/SN)

 0

24LC256T-I/SN

D# 24LC256T-I/SN

 Microchip Technology Inc

EEPROM Serial-I2C 256K-bit 32K x 8 3.3V/5V 8-Pin SOIC N T/R (Alt: 24LC256T-I/SN)

 0

24LC256T-I/SNRVE

D# 24LC256T-I/SNRVE

 Microchip Technology Inc

EEPROM Serial-I2C 256K-Bit 32K x 8 3.3/5V 8-Pin SOIC T/R (Alt: 24LC256T-I/SNRVE)

 0
零件編號 製造商 描述 庫存

24LC256T-I/SN

 Microchip Technology Inc

190

24LC256-I/SN

 Microchip Technology Inc

537
零件編號 製造商 描述 庫存

24LC256-I/SN

D# 64S2256

 Microchip Technology Inc

EEPROM Serial-2Wire 256K-bit 2

 699
零件編號 製造商 描述 庫存

24LC256-I/SN

 Microchip Technology Inc

24LC256 Series 256 Kb I2C 2 Wire (32K X 8) 2.5 V Serial EEPROM SMT - SOIC-8

 13726

24LC256T-I/SN

 Microchip Technology Inc

256K 32K X 8 2.5V SER EE IN

 0

24LC256T-I/SNG

 Microchip Technology Inc

IC EEPROM 256KBIT 400KHZ 8SOIC

 0
零件編號 製造商 描述 庫存

24LC256T-I/SN

D# C1S505200357726

 Microchip Technology Inc

256K, 32K X 8, 2.5V SER EE, IND

RoHS: Compliant
pbFree: Yes
Min Qty: 1
 953

24LC256-I/SN

D# C1S505200341363

 Microchip Technology Inc

256K, 32K X 8, 2.5V SER EE, IND

Min Qty: 1
Container: Bulk
 374
零件編號 製造商 描述 庫存

24LC256-I/SN

 Microchip Technology Inc

IC EEPROM 256KBIT 400KHZ 8SOIC

 80

24LC256T-I/SN

 Microchip Technology Inc

256Kbit(32K x 8) 400KHz I2C 2.5V~5.5V

 705
零件編號 製造商 描述 庫存

24LC256TISN

 mct

RoHS: Compliant
 0
零件編號 製造商 描述 庫存

24LC256T-I/SNG

D# 24LC256T-I/SNG-ND

 Microchip Technology Inc

IC EEPROM 256KBIT I2C 8SOIC

 0

24LC256-I/SN

D# 24LC256-I/SN-ND

 Microchip Technology Inc

IC EEPROM 256KBIT I2C 8SOIC

 3320

24LC256T-I/SN

D# 24LC256T-I/SNTR-ND

 Microchip Technology Inc

IC EEPROM 256KBIT I2C 8SOIC

 26187
零件編號 製造商 描述 庫存

24LC256-I/SN

D# 24LC256-I/SN

 Microchip Technology Inc

Industry Leading ISO:9001/AS9120A Stocking Distributor of Obsolete & Hard to Find IC's/Semi's, Specializing in Altera/Xilinx. In-House Counterfeit Detection Lab. In Business 20 Years. Free Shipping on Orders Over $250. Buy American, Buy Direct

 235

24LC256T-I/SN

D# 24LC256T-I/SN

 Microchip Technology Inc

Industry Leading ISO:9001/AS9120A Stocking Distributor of Obsolete & Hard to Find IC's/Semi's, Specializing in Altera/Xilinx. In-House Counterfeit Detection Lab. In Business 20 Years. Free Shipping on Orders Over $250. Buy American, Buy Direct

 1254
零件編號 製造商 描述 庫存

24LC256T-I/SNG

 N

In stock shipping within 2days

 808

24LC256-I/SN

 Microchip Technology Inc

In stock shipping within 2days

 30525

24LC256T-I/SN

 Microchip Technology Inc

In stock shipping within 2days

 36177
零件編號 製造商 描述 庫存

24LC256-I/SN

D# 1660005

 Microchip Technology Inc

SERIAL EEPROM, 256KBIT, 400KHZ, SOIC-8

RoHS: Compliant
Min Qty: 1
Container: Tube
 86

24LC256T-I/SN

D# 2412656

 Microchip Technology Inc

SERIAL EEPROM, 256KBIT, 400KHZ, SOIC-8

RoHS: Compliant
Min Qty: 3300
Container: Reel
 0
零件編號 製造商 描述 庫存

24LC256-I/SN

 Microchip Technology Inc

24LC256 Series 256 Kb I2C 2 Wire (32K X 8) 2.5 V Serial EEPROM SMT - SOIC-8

RoHS: Compliant
pbFree: Yes
 4777
零件編號 製造商 描述 庫存

24LC256TISN

 Microchip Technology Inc

OEM/CM QUOTES ONLY | NO BROKERS

 101700

24LC256TISNA20

 Microchip Technology Inc

OEM/CM QUOTES ONLY | NO BROKERS

 3288

24LC256TISNG

 Microchip Technology Inc

OEM/CM QUOTES ONLY | NO BROKERS

 140
零件編號 製造商 描述 庫存

24LC256TISND

 Microchip Technology Inc

OEM/CM ONLY

 1891

PIC24LC256TISN

 Microchip Technology Inc

OEM/CM ONLY

 4728

24LC256TISNSO

 Microchip Technology Inc

OEM/CM ONLY

 1894

24LC256TISNA20

 Microchip Technology Inc

OEM/CM ONLY

 702

24LC256TISNRVE

 Microchip Technology Inc

OEM/CM ONLY

 1893

24LC256TISN

 Microchip Technology Inc

OEM/CM ONLY

 538

MIC24LC256TISN

 Microchip Technology Inc

OEM/CM ONLY

 2864

24LC256TISNCTND

 Microchip Technology Inc

OEM/CM ONLY

 110

MCC24LC256TISN

 Microchip Technology Inc

OEM/CM ONLY

 13484

24LC256TISNG

 Microchip Technology Inc

OEM/CM ONLY

 670

24LC256TISNGLEADFREE

 Microchip Technology Inc

OEM/CM ONLY

 565
零件編號 製造商 描述 庫存

24LC256-I/SN

 Microchip Technology Inc

In stock

 197
零件編號 製造商 描述 庫存

24LC256-I/SN

 Microchip Technology Inc

SOP/24LC256-I/SN/MICROCHIP

RoHS: Compliant
 30000
零件編號 製造商 描述 庫存

24LC256T-I/SN

D# C5458

 Microchip Technology Inc

30415

24LC256-I/SN

D# C411625

 Microchip Technology Inc

1081
零件編號 製造商 描述 庫存

24LC256T-I/SN

 Microchip Technology Inc

EEPROM Serial I2C (2-Wire) - 256 Kbit - 32K x 8bit - 400 kHz - 8 Pins.

RoHS: Compliant
 5775

24LC256-I/SN

 Microchip Technology Inc

EEPROM - Serial I2C (2-Wire) - 256 Kbit - 32K x 8bit - 400 kHz - SOIC - 8 Pins.

RoHS: Compliant
 2200
零件編號 製造商 描述 庫存

24LC256T-I/SN

D# 24LC256T-I/SN

 Microchip Technology Inc

256K 32K X 8 2.5V SER EE

RoHS: Compliant
pbFree: Yes
 53599

24LC256-I/SN

D# 24LC256-I/SN

 Microchip Technology Inc

256K 32K X 8 2.5V SER EE

RoHS: Compliant
pbFree: Yes
 34476
零件編號 製造商 描述 庫存

24LC256T-I/SN

 Microchip Technology Inc

OEM/CM Immediate delivery

 88720

24LC256-I/SN

 Microchip Technology Inc

OEM/CM Immediate delivery

 88720

24LC256T-I/SNG

 N

OEM/CM Immediate delivery

 808
零件編號 製造商 描述 庫存

24LC256T-I/SN

D# 579-24LC256T-I/SN

 Microchip Technology Inc

EEPROM 32kx8 - 2.5V

RoHS: Compliant
 4416

24LC256-I/SN

D# 579-24LC256-I/SN

 Microchip Technology Inc

EEPROM 32kx8 - 2.5V

RoHS: Compliant
 4213
零件編號 製造商 描述 庫存

24LC256-I/SN

 Microchip Technology Inc

256K, 32K X 8, 2.5V SER EE, IND - Package: 8 SOIC 3.90mm(.150in) TUBE

RoHS: Compliant
 0

24LC256T-I/SN

 Microchip Technology Inc

256K, 32K X 8, 2.5V SER EE, IND - Package: 8 SOIC 3.90mm(.150in) T/R

RoHS: Compliant
 0
零件編號 製造商 描述 庫存

24LC256T-I/SN

D# MCHP00000001338

 Microchip Technology Inc

256K, 32K X 8, 2.5V SER EE, IND - Package: 8 SOIC 3.90mm(.150in) T/R

 0

24LC256-I/SN

D# MCHP00000001323

 Microchip Technology Inc

256K, 32K X 8, 2.5V SER EE, IND - Package: 8 SOIC 3.90mm(.150in) TUBE

 0
零件編號 製造商 描述 庫存

24LC256-I/SN

D# 26AC6622

 Microchip Technology Inc

256K, 32K X 8, 2.5V SER EE, IND ROHS COMPLIANT: YES

RoHS: Compliant
Min Qty: 100
Container: Bulk
 0

24LC256T-I/SN

D# 28AC8206

 Microchip Technology Inc

256K, 32K X 8, 2.5V SER EE, IND ROHS COMPLIANT: YES

RoHS: Compliant
Min Qty: 3300
Container: TAPE & REEL - FULL
 0
零件編號 製造商 描述 庫存

24LC256-I/SN

D# NS-24LC256-I/SN

 Microchip Technology Inc

OEM/CM ONLY

 13330

PIC24LC256T-I/SN

D# NS-PIC24LC256T-I/SN

 MIC

OEM/CM ONLY

 9556

24LC256T-I-SNG

D# NS-24LC256T-I-SNG

 Microchip Technology Inc

OEM/CM ONLY

 5751

24LC256T-I/SN

D# NS-24LC256T-I/SN

 Microchip Technology Inc

OEM/CM ONLY

 3310

24LC256T-I/SNG

D# NS-24LC256T-I/SNG

 Microchip Technology Inc

OEM/CM ONLY

 2819
零件編號 製造商 描述 庫存

24LC256-I/SN

 Microchip Technology Inc

EEPROM - Serial I2C (2-Wire) - 256 Kbit - 32K x 8bit - 400 kHz - SOIC - 8 Pins.

RoHS: Compliant
 2200

24LC256T-I/SN

 Microchip Technology Inc

EEPROM Serial I2C (2-Wire) - 256 Kbit - 32K x 8bit - 400 kHz - 8 Pins.

RoHS: Compliant
 5775
零件編號 製造商 描述 庫存

24LC256-I/SN

 Microchip Technology Inc

Serial EEPROM, 32K x 8, 8 Pin, Plastic, SOP

 111

24LC256T-I/SN

 Microchip Technology Inc

Serial EEPROM, 32K x 8, 8 Pin, Plastic, SOP

 9101
零件編號 製造商 描述 庫存

24LC256-I/SN

D# 8895102

 Microchip Technology Inc

Microchip 24LC256-I/SN, 256kbit Serial EEPROM Memory, 900ns 8-Pin SOIC Serial-I2C, TU

Min Qty: 100
Container: Tube
 0

24LC256T-I/SN

D# 8234557

 Microchip Technology Inc

Microchip 24LC256T-I/SN, 256kB EEPROM Memory, 900ns 8-Pin SOIC Serial-I2C, PK

Min Qty: 10
Container: Package
 1750
零件編號 製造商 描述 庫存

24LC256TI/SNG

 Microchip Technology Inc

OEM/CM ONLY

 140

24LC256TI/SN

 Microchip Technology Inc

OEM/CM ONLY

 28246

24LC256TISNA20

 Microchip Technology Inc

OEM/CM ONLY

 2926
零件編號 製造商 描述 庫存

24LC256T-I/SN

 Microchip Technology Inc

IN stock Immediate delivery

 88705

24LC256T-I/SNG

 N

IN stock Immediate delivery

 803

24LC256-I/SN

 Microchip Technology Inc

IN stock Immediate delivery

 88705
零件編號 製造商 描述 庫存

24LC256T-I/SNG

 N

shipping today

 490

24LC256T-I/SN

 Microchip Technology Inc

shipping today

 86

24LC256-I/SN

 Microchip Technology Inc

shipping today

 6496
零件編號 製造商 描述 庫存

24LC256T-I/SN

D# 53161565

 Microchip Technology Inc

EEPROM Serial-2Wire 256K-bit 32K x 8 3.3V/5V 8-Pin SOIC N T/R

RoHS: Compliant
 0

24LC256-I/SN

D# 53703871

 Microchip Technology Inc

EEPROM Serial-2Wire 256K-bit 32K x 8 3.3V/5V 8-Pin SOIC N Tube

RoHS: Compliant
 0
零件編號 製造商 描述 庫存

24LC256T-I/SN

 mfr

RFQ

 9748

24LC256-I/SN

 mfr

RFQ

 8235
零件編號 製造商 描述 庫存

24LC256-I/SN

 Microchip Technology Inc

IC EEPROM 256KBIT 400KHZ 8SOIC

 18500

24LC256T-I/SNG

 Microchip Technology Inc

IC EEPROM 256KBIT 400KHZ 8SOIC

 1180

24LC256T-I/SN

 Microchip Technology Inc

IC EEPROM 256KBIT 400KHZ 8SOIC

 40769
零件編號 製造商 描述 庫存

24LC256-I/SN

D# 9757996

 Microchip Technology Inc

SERIAL EEPROM, 256KBIT, 400KHZ, SOIC-8

RoHS: Compliant
Min Qty: 1
Container: Each
 9399

24LC256T-I/SN

D# 1296581RL

 Microchip Technology Inc

SERIAL EEPROM, 256KBIT, 400KHZ, SOIC-8

RoHS: Compliant
Min Qty: 1
Container: Reel
 0

Quick Inquiry

24LC256T-I/SN

質量認證

黑森爾對質量的承諾，塑造了我們的採購、測試、運輸流程以及它們之間的每一步。這個基準是我們所銷售的每一個元器件的基礎。

ISO9001:2015, ICAS, IAF, UKAS

查看證書

聯繫我們

您有關於 24LC256T-I/SN 的問題嗎？

24LC256T-I-SN QRCode

掃描以查看此頁面

推薦產品

HCS3920FTL500

RES SMD 0.0005 OHM 1% 5W 3920

74HC74A

DIE CM FLIP-FLOP DUAL D

NIS5135MN1TXG

IC ELECTRONIC FUSE 10DFN

SMBJ33CA-13-F

TVS DIODE 33VWM 53.3VC SMB

MF-MSMF075-2

PTC RESETTABLE .75A 13.2V 1812

DS5000FP-16+

IC MCU 8BIT NVSRAM 80QFP

WSL2010R0100FEA

RES SMD 0.01 OHM 1% 1/2W 2010

LV8548MC-AH

IC MOTOR DRIVER PAR MFP10S

LTST-C191KSKT

LED YELLOW CLEAR 0603 SMD

NSR0320MW2T1G

DIODE SCHOTTKY 20V 1A SOD323

更多 »

24LC256T-I/SN Tags

  • 24LC256T-I/SN
  • 24LC256T-I/SN PDF
  • 24LC256T-I/SN 數據表
  • 24LC256T-I/SN 規格
  • 24LC256T-I/SN 圖片
  • Microchip Technology
  • Microchip Technology 24LC256T-I/SN
  • 買24LC256T-I/SN
  • 24LC256T-I/SN 價格
  • 24LC256T-I/SN 經銷商
  • 24LC256T-I/SN 供應商
  • 24LC256T-I/SN 批發

24LC256T-I/SN可用於