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It is 44 pins i guess. Try this device tool, you will find the proper universal programmer if that's what you are looking: just copy and paste the device number and search for it to see which programmers they are supporting.

Pretty much all universal device programmer websites have similar tools like this. Pick which company you want to work with and make sure that they are supporting your device.

Hello, anyone have used to program winbond bios ic w25q40b? What programmer can be use to program / read this bios ic? Spi flash programmer winbond free download. FlashProg is USB base flash memory programmer which is specifically design to read and program 3.3V SPI flash memory. BIOS Chip Type list. Manufacturer ==>WINBOND. I would like to know if you have this kind of chip and how much it will cost me to program it and send it to.

And also don't forget to double check default pin numbers of those programmers. Otherwise you may need to pay extra money for socket adapter. But it is almost commoditized that most of the universal programmers have 48 pins-drivers.

This is straight out of the W78E516B datasheet: 5.12 In-System Programming (ISP) Mode: The W78E516B equips one 64K byte of main Flash EPROM bank for application program (called APROM) and one 4K byte of auxiliary Flash EPROM bank for loader program (called LDROM). In the normal operation, the microcontroller executes the code in the APROM. If the content of APROM needs to be modified, the W78E516B allows user to activate the In-System Programming (ISP) mode by setting the CHPCON register. The CHPCON is read-only by default, software must write two specific values 87H, then 59H sequentially to the CHPENR register to enable the CHPCON write attribute. Writing CHPENR register with the values except 87H and 59H will close CHPCON register write attribute. The W78E516B achieves all in-system programming operations including enter/exit ISP Mode, program, erase, read. Etc, during device in the idle mode.

Setting the bit CHPCON.0 the device will enter in-system programming mode after a wake-up from idle mode. Because device needs proper time to complete the ISP operations before awaken from idle mode, software may use timer interrupt to control the duration for device wake-up from idle mode. To perform ISP operation for revising contents of APROM, software located at APROM setting the CHPCON register then enter idle mode, after awaken from idle mode the device executes the corresponding interrupt service routine in LDROM. Because the device will clear the program counter while switching from APROM to LDROM, the first execution of RETI instruction in interrupt service routine will jump to 00H at LDROM area. The device offers a software reset for switching back to APROM while the content of APROM has been updated completely. Setting CHPCON register bit 0, 1 and 7 to logic-1 will result a software reset to reset the CPU.

The software reset serves as a external reset. This insystem programming feature makes the job easy and efficient in which the application needs to update firmware frequently.

In some applications, the in-system programming feature make it possible to easily update the system firmware without opening the chassis. Pokemon Snap there. Does anyone have info on WHAT is in the 4K LDROM area in a virgin device? I need to know if I can ISP program it a totally new device. Dave Added after 10 minutes: Dave here again, Winbond has spun off its 8051s to Nuvoton. The Nuvoton website has many dead links, and no one seems to want to acknowledge that or fix them. I have found some datasheets elsewhere, but they have NO application notes. I cant even get them from the old Winbond site.

There is some 8051 info there, but no app notes anymore. If anyone has app notes I would love to see them.

I copied this message below from Does anyone know if this is still true??? Subject: Winbond ISP Full Name: David Smith (Nottingham Uk) Date: 04/19/05 08:17 Read: 407 times-- Printable Version Score: Hasn't been scored Winbond never loaded any default ISP code into the LDROM section! You had to do the initial programming on a parallel programmer. I pointed this 'shortfall' out to one of their technical guys about 4 months ago, and he promised that they would preload the LDROM section with working ISP code. (I posted this info: #82232 - Winbond ISP Information.) Majid should email Winbond and find out if they carried out their proposal - and, if so, from what date code. Big pain if they haven't. Got access to an ALL-11???