Todays deals on Positive Nand?

100PCS 74LS20 DIP14 DIP-14 HITACHI Dual 4-Input Positive NAND Gates IC $83.60

100PCS 74LS01 DIP14 DIP-14 HITACHI Quadruple 2-Input Positive NAND Gate IC $83.60

100PCS 74LS30 DIP14 DIP-14 HITACHI 8 Input Positive NAND Gates IC $83.60

M38510/07009BEA 13-Input Positive NAND Gate 54S133 $40.00

5962-8870801CA 8-Input Positive NAND Gate $22.00

M38510/37005BEA Mil-Spec 13-Input Positive NAND Gate $19.18

25 TI SN7410N Triple 3-Input Positive-Nand Gates IC’s $12.99

M38510/00109BCA Quad 2-Input Positive NAND Gates $15.00

JM38510/00104 BCA QUADRUPLE 2-INPUT POSITIVE-NAND GATES 2 pcs $14.99

JM38510/37002BCA TRIPLE 3-INPUT POSITIVE NAND GATES $14.99

M38510/07201BCA Dual 4-Input Positive NAND Buffer $13.30

6 New TI SN7420N Dual 4Input Positive Nand Gates $6.00

SN5401 QUADRUPLE 2-INPUT POSITIVE-NAND GATES IC $9.99

SN5420 DUAL 4-INPUT POSITIVE-NAND GATES IC $9.99

SN5430 8-INPUT POSITIVE-NAND GATES IC $9.66

25 TEXAS INSTRUMENT SN74ALS30AN IC 8-INPUT POSITIVE-NAND GATES $13.98

ELCAP 74HCT00 QUAD 2-INPUT POSITIVE-NAND GATES (40 PCS) $9.00

LOT OF 20x SN74F00N Texas Instruments Quad 2-input positive-NAND gates NEW $0.99

28 TEXAS INSTRUMENT SN74ALS00AN IC QUADRUPLE 2-INPUT POSITIVE-NAND GATES $12.98

SN5400J [SN5400] 2-INPUT POSITIVE-NAND GATE IC $7.66

MC1472P1 DUAL PERIPHERAL-HIGH-VOLTAGE POSITIVE NAND DRI $7.95

SNJ54H00J Quad 2-Input Positive NAND Gates $7.75

5 ~ TI # SN54AS1000AJ IC QUAD 2-INPUT POSITIVE-NAND BUFFERS / DRIVERS 54AS1000 $8.50

20pcs SN74LVC1G00DBVR – SINGLE 2-INPUT POSITIVE-NAND GATE $9.99

SNJ54H20J Dual 4-Input Positive NAND Gates $7.15

SN74LS10 SN74LS10N 74LS10N 3-INPUT POSITIVE-NAND 25ea $8.00

5 SN74LS20N DIP Dual 4-Input Positive-NAND Gates $10.99

5 HD74LS30P 74LS30 DIP 8-input Positive NAND Gate $8.70

SN74HC10D, Triple 3-Input Positive-NAND Gate, Qty 20 $9.99

20 PCS SN74HC10D SN74HC10 HC10 SOP14 POSITIVE-NAND GATE $9.95

10PCS 74LS20 DIP14 DIP-14 HITACHI Dual 4-Input Positive NAND Gates IC $9.84

10PCS 74LS30 DIP14 DIP-14 HITACHI 8 Input Positive NAND Gates IC $9.84

10PCS 74LS01 DIP14 DIP-14 HITACHI Quadruple 2-Input Positive NAND Gate IC $9.84

1x JM38510/31303BCA MOTOROLA Quadruple 2-Input Positive-NAND Schmitt Trigger NEW $5.00

SN5437J Manu:TI Encapsulation:CDIP,QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS $5.50

SNJ54ALS00AJ Manu:TI Encapsulation:CDIP14,QUADRUPLE 2-INPUT POSITIVE-NAND $5.50

74F10N (SN74F10N) Triple 3-input positive-NAND gat $3.91

SN7420N X2 DUAL 4-INPUT POSITIVE-NAND GATES $3.91

SN54LS38J Encapsualtion:CDIP-14 Manu:TI QUADRUPLE 2-INPUT POSITIVE-NAND $5.00

SN5410J Manu:TI Encapsulation:CDIP-14,TRIPLE 3-INPUT POSITIVE-NAND GATES $5.00

SNJ54LS37J Quad 2-Input Positive NAND Buffers $4.99

74LS30 8-Inp. Positive-NAND SN74LS30N DM74LS30N IC 10pc $2.50

5pcs TI SN54AS20J Dual 4-Input Positive NAND CERDIP $5.99

SN5438J Manu:TI Encapsulation:DIP-14,QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS WIT $4.00

TI SN74S133N 74S133 13-INPUT POSITIVE-NAND GATES IC $2.95

LOT OF 10x SN74F00N Texas Instruments Quad 2-input positive-NAND gates NEW $7.50

M38510/33004BCB Dual 4-Input Positive NAND Gates $3.50

SN7412N Manu:TI Encapsulation:DIP-14,TRIPLE 3-INPUT POSITIVE-NAND GATES WITH $3.00

15pcs Brand New SN74HC00N 74HC00N 74HC00 2-input POSITIVE-NAND Gates TI IC $6.99

M38510/30007BCA Dual 4-Input Positive NAND Gate 54LS20 $3.00

74AS30N (SN74AS30N) 8-INPUT POSITIVE-NAND GATES (X2) $1.56

SNJ5440J Dual 4-Input Positive NAND Buffers $2.50

SN74ALS30AN Texas Instruments 8input positive-NAND gate $3.49

SN74HC10 – TRIPLE 3-INPUT POSITIVE-NAND GATES 5 pcs. $4.49

SN74HC132N Encapsualtion:DIP-14 Manu:TI QUADRUPLE POSITIVE-NAND GATES WITH $2.00

SN7403N Encapsualtion:DIP-14 Manu:TI QUADRUPLE 2-INPUT POSITIVE-NAND GATES $2.00

Lot of 2 74HC30N 8 Input Positive NAND Gates 7430 (QTY 2) $1.00

Lot of 2 SN74LS30N 8 Input Positive NAND Gates 7430 (QTY 2) $1.00

Lot of 5 Triple 3-Input Positive-NAND Gates 74ACT10 7410 SOIC SMT QTY5 $1.00

Lot of 5 Triple 3-Input Positive NAND Gates 7410 $1.00

Lot of 6 Quad 2 input positive NAND buffers Open Collec $1.00

TRIPLE 3-INPUT POSITIVE-NAND GATES IC SN74LS10N – 5 PCS $1.00

Lot of 10 Philips Quad 2-Input Positive NAND Gates 14-SOIC 7400 74HC00D $1.00

Lot of 5 SN74S30N 8 Inputs Positive NAND Gates 7430 $1.00

SN74S132N Manu:TI Encapsulation:DIP-14,QUADRUPLE 2-INPUT POSITIVE-NAND $2.00

SN74HC00N Manu:TI Encapsulation:DIP-14,QUADRUPLE 2-INPUT POSITIVE-NAND GATES $2.00

SN74HC132NSR Manu:TI Encapsulation:SOP-14,QUADRUPLE POSITIVE-NAND GATES WITH $2.00

SN74LS20N Manu:TI/MOT Encapsulation:DIP-14,DUAL 4-INPUT POSITIVE-NAND GATES $2.00

HD74LS132P Manu:HITACHI Encapsulation:DIP-14,Quadruple 2-input Positive NAND $2.00

HD74LS90P Manu:HITACHI Encapsulation:DIP-14,Ouadruple 2-input Positive NAND $2.00

SN74LS10N Manu:TI Encapsulation:DIP-14,TRIPLE 3-INPUT POSITIVE-NAND GATES $2.00

5 pcs, Quad Positive-NAND Gates with Schmitt-Trigger IN $1.95

5 pcs, 8-Input Positive-NAND Gates 7V $1.95

6 pcs, 8-INPUT POSITIVE NAND GATE 14-DIP 7V $1.75

SN74LS12N Encapsualtion:DIP-14 Manu:TI TRIPLE 3-INPUT POSITIVE-NAND GATES WITH $1.00

SN74LS00N Manu:TI Encapsulation:DIP-14,QUADRUPLE 2-INPUT POSITIVE-NAND GATES $1.00

SN74LS40N Manu:TI/MOT Encapsulation:DIP-14,DUAL 4-INPUT POSITIVE-NAND BUFFERS $1.00

SN74ALS10N / 74ALS10 Triple 3-Input Positive NAND Gates : Lot of 4 $4.99

5 pcs of QUADRUPLE 2-INPUT POSITIVE-NAND GATES $0.99

Texas Inst – SN74AHCT00DR Quadruple 2-input positive-NAND gates SOIC-14 -10pcs $2.30

Texas Inst – SN74F30DR 8-input positive-NAND gates SOIC-14 -20pcs $2.30

10 pcs 74HC00 Quad 2-Input positive NAND gates $1.90

5pcs 74HC132 DIP QUADRUPLE POSITIVE-NAND GATE $1.95

SN7401N / 7401PC ORIGINAL TI/FAIRCHILD QUADRUPLE 2-INPUT POSITIVE-NAND GATES IC $1.29

TI SN74LVC00ADR (74LVC00) Quad 2-Input Positive NAND Gate, SO-14,10pcs $3.99

TI SN74HC00PWR Quad 2-Input Positive NAND Gate, TSSOP-14, 10pcs $3.99

5x SN74HC00N 74HC00N 2-input POSITIVE-NAND Gates TI IC $3.99

74HC00N – Quad 2-Input Positive-NAND Gates – DIP14 $1.99

NTE74HC00 IC TTL Quad 2-Input Positive NAND Gate (Qty2) $1.80

5pcs 74LS132 Quad 2-input Positive NAND Schmitt Trigger $1.65

5 pcs 74LS20 7420 Dual 4-Input Positive NAND Gates New $1.65

TI – SN74LS03N Quad 2-input positive-NAND gates – 4pcs $1.15

5 pcs 74LS30 7430 8-Input Positive-NAND Gates DIP NEW $1.30

5x 74LS10 7410 Triple 3-input positive-NAND gates New $1.20

5 pcs 74LS01 7401 Quadruple 2-Input Positive NAND Gate $1.00

5 pcs 74HC00 7400 Quad 2-Input Positive NAND Gates DIP $1.00

NTE NTE74HC10 IC,TTL,Triple 3-Input Positive NAND Gate $1.00

5 pcs 74LS01 Quadruple 2 Input Positive NAND Gate $2.49

1PCS 74LS20 DIP14 DIP-14 HITACHI Dual 4-Input Positive NAND Gates IC $2.21

1PCS 74LS30 DIP14 DIP-14 HITACHI 8 Input Positive NAND Gates IC $2.21

Positive Nand Questions

Why My Usb Device Became Not Recognized? How To Repair And Recover The Data?

Abstract:Physical damages cause the USB device to not be recognized making it impossible to access the contents of the flash-memory chip since the USB device not recognized by the PC operating system through its native USB interface. This type of USB device not recognized damage happens in more than 80% of all known cases…

In general there are two reasons why the data on memory flash devices (cards, USB-sticks, SSD) is inaccessible.
Logical damages cause the drive to be physically recognized by the PC operating system but the damage prevents access to the data/pictures. In this case some specialized types of recovery software can help. Sometimes free recovery tools can also solve this problem.
Physical damages cause the USB device to not be recognized making it impossible to access the contents of the flash-memory chip since the USB device not recognized by the PC operating system through its native USB interface. This type of USB device not recognized damage happens in more than 80% of all known cases. These not recognized USB devices are most frequently caused by electrical problems leading to physical damage e.g. ESD (electrostatic discharge), current interruption. USB flash devices consist of a memory chip and a controller. The controller writes and reads the data from the memory chip and the USB device will be not recognized if the controller goes damaged. In most cases, the recovery is of a not recognized USB flash device with a damaged controller and mostly undamaged memory chips.

Formatting is required? The controller of the memory card is not in the position to inform the PC operating system about the characteristics of the USB device. Therefore the PC assumes, the USB device is not formatted and requests formatting. One could now think, the USB device problems are solved by formatting, unfortunately that does not work due to the damaged controller. Try it out, the PC will prompt a formatting failure. Finally this is then also a clear proof that any kind of software, also special formatting or rescue software can’t access to the USB device.

SD Flash Doctor recovery process: If the USB flash storage device is not recognized in the PC or it is impossible to access the data on it, there is only one way to get the data, unsolder the flash memory chip from the USB device not recognized and directly access their raw data with a programmable chip reader.

 

SD Flash Doctor is a hardware-software complex designed for the data rescue of not recognized flash memory cards (Secure Digital SD [mini SD, micro SD, SDHC, SDHC Plus], Compact Flash CF, Multimedia Card MMC, Memory Stick [MS, MS Pro, MS Pro DUO], Picture Card xD)/USB flash drives (USB-Sticks, pen drives).

 

What separates SD Flash Doctor from those common software products of the competition?

• SD Flash Doctor is specialized in the data rescue of memory cards/USB-Sticks with physical damages. The recovery procedure of Flash Doctor is: first remove the flash memory NAND chips from the PCB; second read the NAND chip with the external NAND chip reader; third assemble the data by emulating the controller action. So SD Flash Doctor is able to recover data from a not recognized flash drive when the common software can’t.
• SD Flash Doctor assembles the data of a not recognized USB device without any need to work on the controller, that is to say it supports NAND chips controlled by all types of controllers.  
• All updates and technical support are included and will be provided to the users free of charge; this product recovers not recognized USB device by analyzing dumps saved from the flash chips, thus there is no need to use the controller database which is for recovering data by matching controller types. We provide dump analysis procedures and utilities so that the program can assemble the data to be readable just like what the controller does. This is the most significant difference and advantage of SD Flash Doctor in working with not recognized USB device compared with other tools. 

When can files/pictures be recovered?

• inadvertent deletion
• card wants to be formatted (memory card controller damaged!)
• inadvertent formatting (only if the camera does not overwrite the addresses of the sectors, not recoverable are: Canon Ixus/Powershot, Casio Exilim, Olympus Camedia/u830)
• USB device is not any longer recognized (memory card controller damaged!)
• error messages like: read error, memory card error… (memory card controller damaged!)
• damages by external influences (liquids, heat, dirt)
• physical damages, without memory chip destruction

  

The big rectangle is the memory chip, if there is not a crack on it, data recovery is still possible even the USB device is not recognized. 

When can’t files/pictures be recovered?

The cracks have damaged the memory chips and nobody is able to repair the chips or recover the data even the USB device can still be recognized.

 

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