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Microchip Technology AT24C08C-XHM-B — Memory (DRAM / SRAM / Flash / EEPROM)

Microchip AT24C08C-XHM-B EEPROM, 8Kbit I2C 1MHz 8-TSSOP

MPNAT24C08C-XHM-B
Active

Microchip AT24C08C-XHM-B, 8Kbit I2C Serial EEPROM, 1 MHz clock, 550 ns access, 1.7V-5.5V supply, -40°C to 85°C, 8-TSSOP package, Tube.

$0.3000Ref. price · indicative, final on quote
Packaging8-TSSOP (0.173", 4.40mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

AT24C08C-XHM-B specifications
ParameterValue
Memory typeNon-Volatile
MountingSurface Mount
Voltage1.7V ~ 5.5V
Frequency1 MHz
Memory interfaceI²C
Operating temperature-40°C~85°C(TA)
PackageTube
TechnologyEEPROM
Access time550 ns
Memory size8Kbit
Memory formatEEPROM
Case8-TSSOP (0.173\", 4.40mm Width)
Memory organization1K x 8
Write cycle time - word, page5ms

Product details

8 Kbit I2C EEPROM in an 8-TSSOP — what the specs mean for the board

The Microchip AT24C08C-XHM-B is an 8 Kbit serial EEPROM organized as 1 K x 8 bits, accessed over an I2C bus at up to 1 MHz. The 550 ns access time is the random-read cycle; at 1 MHz the I2C clock period is 1 µs, so the part keeps up with back-to-back reads without inserting wait states on the bus. The 8-TSSOP package (4.40 mm width) is a compact surface-mount footprint common on mixed-signal and MCU boards; the Tube shipping form means it arrives in a rigid antistatic tube, not tape-and-reel, which matters for pick-and-place feeder setup if your line expects reels.

Microchip lists the AT24C08C-XHM-B as Active (current production). The base part number AT24C08 is a long-running EEPROM family, so the C revision is the latest spin with the 1 MHz clock support.

The AT24C08C-XHM-B is an active, widely stocked EEPROM. As an independent distributor we source it from multiple supply lines — authorized channels, excess inventory, and franchise partners — which gives flexibility on lead time and pricing.

Frequently asked questions

How many bytes does AT24C08C-XHM-B store?

The memory size is 8 Kbit, organized as 1 K x 8 bits — that is 1024 bytes of non-volatile storage.

What is the difference between AT24C08C-XHM-B and AT24C08C-XHM-T?

The only difference is the shipping medium: -B is Tube, -T is Tape & Reel. The die, package, electrical specs, and temperature rating are identical. Choose -T if your pick-and-place line feeds from reels; -B if you use tube feeders or hand-place prototypes.

When sourcing AT24C08C-XHM-B, what's the closest functional second-source?

The key difference is the access time — 4.5 µs on the D variant versus 550 ns on the C variant — and the package: the D variant ships in an SOIC-8 (narrow), while the C variant is in an 8-TSSOP. The SOIC-8 footprint is larger and not pin-compatible with the TSSOP layout, so a board spin is required to swap.