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AT24C08C-XHM-T

Name: AT24C08C-XHM-T
Rating: 4.7 (12 reviews)

IC EEPROM 8KBIT I2C 1MHZ 8TSSOP

製造商
製造商。部分 #AT24C08C-XHM-T
包 8-TSSOP (0.173, 4.40mm Width)
資料表 AT24C08C-XHM-T DataSheet
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規格

Supplier	Microchip Technology
Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
MemoryType	Non-Volatile
MemoryFormat	EEPROM
Technology	EEPROM
MemorySize	8Kb (1K x 8)
MemoryInterface	I²C
ClockFrequency	1 MHz
WriteCycleTime-WordPage	5ms
AccessTime	550 ns
Voltage-Supply	1.7V ~ 5.5V
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	8-TSSOP (0.173, 4.40mm Width)

概述

Description

AT24C08C‑XHM‑T is an 8‑Kbit I2C serial EEPROM from Atmel (Microchip). It stores 1024 bytes of nonvolatile data and is accessed over a 2‑wire I2C bus.
Key points:
- Interface and address: I2C, 7‑bit addressing with control byte 1010 A2 A1 A0 R/W. The A2–A0 pins select one of 8 memory blocks.
- Organization: 1024 bytes total, organized as 8 blocks of 128 bytes. After the control byte, you send an 8‑bit memory address within the selected block.
- Page writes: up to 16 bytes per write within the current 128‑byte block; write cycle typically ~5 ms.
- Voltage: operates from about 1.7 to 5.5 V.
- Package: 8‑pin package; XHM‑T suffix indicates specific package/tape‑and‑reel options; refer to the datasheet for exact package.
- Use cases: small data storage for calibration, configuration data, smart cards, and other embedded-system needs.
For exact pinout, timing, temperature range, and package details, consult the AT24C08C datasheet.

Features

Key features of AT24C08C-XHM-T (8Kb I2C EEPROM):
- 8 Kb memory: 1024 × 8, I2C serial EEPROM
- 2-wire I2C interface, up to Fast-mode (400 kHz)
- 16-byte page write; typical write cycle ~5 ms
- Random and sequential read support
- Hardware address pins (A0–A2) for multiple devices on the same bus
- Write protection via WP pin (hardware/software protection)
- Endurance: ~1,000,000 write cycles
- Data retention: ~40 years
- Operating voltage: 1.7 V to 5.5 V
- Temperature range: -40°C to +85°C (commercial grade)
- 8-pin package (XHM-T variant, RoHS-compliant)

Package

An 8-pin SOIC (SOP-8) package, RoHS-compliant; Tape & Reel (T) option.

Pinout

- Pin count: 8 pins (DIP-8/SO-8)
- Function: 8-kbit I2C serial EEPROM (1 Kbyte) with SDA/SCL interface; has A0–A2 address pins and WP write-protect; VCC and GND. Provides nonvolatile storage on the I2C bus.

Manufacturer

- Manufacturer: Microchip Technology Inc. (the AT24C08C line originated with Atmel; Microchip acquired Atmel and now produces it).
- What kind of company: A United States–based multinational semiconductor company that designs, manufactures, and sells microcontrollers, memory, and analog ICs.

Application

AT24C08C-XHM-T is an 8 kbit I2C serial EEPROM used as non-volatile storage in embedded systems. Typical applications: storing device configuration, calibration data, serial numbers/IDs, and small data logs in microcontroller-based designs; common in automotive ECUs, consumer electronics, industrial equipment, and medical devices requiring reliable, low-power I2C memory.

Equivalent

Equivalents (8Kbit I2C serial EEPROMs, 8-pin):
- STMicroelectronics: M24C08-W
- ON Semiconductor: CAT24C08B
- Microchip: 24LC08B (and 24AA08)
- Fudan Microelectronics: FM24C08
All are interchangeable cross-ref I2C EEPROMs with similar timing and pinout.