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Description
MICROCHIP AT93C46D-TH-B EEPROM, Serial, 1 Kbit, 128 x 8bit / 64 x 16bit, 2 MHz, TSSOP, 8 PinsThe AT93C46D TH B is a MICROWIRE compatible 1kB 3 wire serial Electrically Erasable Programmable Read Only Memory (EEPROM) organized as 64 words of 16 bit each (when the ORG pin is connected to VCC) and 128 words of 8 bit each (when the ORG pin is tied to ground). The device is optimized for use in many industrial and commercial applications where low power and low voltage operations are essential. The AT93C46D is enabled through the chip select pin
The AT93C46D-TH-B is a MICROWIRE-compatible 1kB 3-wire serial Electrically Erasable Programmable Read-Only Memory (EEPROM) organized as 64 words of 16-bit each (when the ORG pin is connected to VCC) and 128 words of 8-bit each (when the ORG pin is tied to ground). The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operations are essential. The AT93C46D is enabled through the chip select pin (CS) and accessed via a 3-wire serial interface consisting of data input (DI), data output (DO) and shift clock (SK). Upon receiving a read instruction at DI, the address is decoded and the data is clocked out serially on the DO pin. The write cycle is completely self-timed and no separate erase cycle is required before Write. The write cycle is only enabled when the part is in the Erase/write enable state. When CS is brought high following the initiation of a write cycle, the DO pin outputs the ready/busy status of the part.
- Low-voltage operation
- User-selectable internal organization
- 2MHz Clock rate (5V)
- Self-timed write cycle (5ms maximum)
- High reliability
- Endurance - 1000000 write cycles
- Data retention - 100 years
Applications
Computers & Computer Peripherals, Industrial
Product details
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 85°C |
| Clock Frequency | 2MHz |
| No. of Pins | 8Pins |
| Memory Size | 1Kbit |
| Product Range | 1Kbit Serial Microwire EEPROMs |
| Memory Case Style | TSSOP |
| Supply Voltage Min | 1.8V |
| IC Interface Type | Serial |
| EEPROM Memory Configuration | 128 x 8bit / 64 x 16bit |
| Packaging | Each |
| Supply Voltage Max | 5.5V |
| MSL | MSL 3 - 168 hours |
Other details
| Brand | MICROCHIP |
| Part Number | AT93C46D-TH-B |
| Quantity | Each |
| Technical Data Sheet EN |
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Exchange/Return Notes
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4.1 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Reliable furnace filters at a good price point!
Style: 16x18x1
Great filters. Hard to find sizes. Sturdy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Amazon very professional and reliable
Style: 14x30x1
I was very pleased with the Filterbuy 14 30 1 and it fit great and very pleased with Amazon .They are very professional
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Great buy
Style: 20x25x2
Great fit, quality, construction, and less expensive than buying them at a regular store.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Fantastic Filters!!
Style: 20x25x1
Great filters for my 5 ton unit- well made and designed for airflow and hold up! Very well! MUCH BETTER than Lowes or HD FILTERS
Whistling stopped when I changed to the filters!!
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Reviewed in the United States on May 9, 2026
★★★★★ 5
A lot of quality filters for little cost.
Style: 16x20x1, Style: 16x20x1
Been using these for months, great quality. No issues what so ever. I compared price to the 2 main big box stores and this is the best for your bucks. You get a lot more and they are of the same quality. I used to get mine from a big box store with military discount of 10% and this is still a better deal. They fit exactly like the filter I took out, so size is the same. I live FL and run my AC constantly. These last about 2-3 months each. They do no lose their rigidity. They are built with very high quality material. They catch a lot of dust, you can see how dirty they are when replaced.
PROS
- great quality and last 2-3 months in my AC running constantly
- you get a lot for your money when compared to the big box stores
- catch a lot of dirt, filters are really dirty after use
- very rigid which makes it easy to installation
- reinforced wire mesh
CONS
- None
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Reviewed in the United States on May 31, 2026