AT24C32CN-SH-T

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AT24C32CN-SH-T

IC EEPROM 32KBIT I2C 1MHZ 8SOIC

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Spezifikationen

Package Tape & Reel (TR)
ProductStatus Obsolete
MemoryType Non-Volatile
MemoryFormat EEPROM
Technology EEPROM
MemorySize 32Kb (4K x 8)
MemoryInterface I²C
ClockFrequency 1 MHz
WriteCycleTime-WordPage 5ms
AccessTime 550 ns
Voltage-Supply 1.8V ~ 5.5V
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Übersicht

Description

AT24C32CN-SH-T is a 32‑Kbit I2C serial EEPROM from Atmel/Microchip. It stores 4 KBytes of non-volatile data and is accessed over the I2C two‑wire bus.
Key features
- Capacity: 32 Kbit (4096 x 8).
- Interface: I2C with two‑byte (16‑bit) memory addressing (0x0000–0x0FFF).
- Addressing: A0–A2 pins select up to 8 devices on the same bus; WP pin for write protection.
- Page size: 32 bytes; supports random and sequential reads/writes.
- Write cycle: Typical tWC ~5 ms; endurance around 1,000,000 write cycles.
- Voltage: Wide supply range (check exact grade; commonly ~1.7–5.5 V).
- Temperature: Available grades for industrial/extended ranges; typical operation −40 to 85°C (and higher for some versions).
- Package: 8‑pin small‑outline; -SH‑T suffix indicates a specific small-outline package in tape-and-reel.
Typical use cases
- Persisting configuration data, calibration tables, small data logs, or device IDs for microcontroller projects.
Pinout (8 pins): A0, A1, A2, GND, SDA, SCL, WP, VCC.

Features

Concise features of AT24C32CN-SH-T:
- 32 Kbit serial EEPROM (4K × 8) with I2C two-wire interface
- I2C clock up to 400 kHz (Fast Mode)
- Wide supply: 1.7 V to 5.5 V
- 8-pin package (SH-T variant)
- 32-byte page write; random and sequential read
- Write cycle time ≈ 5 ms
- Endurance ~1,000,000 write cycles; data retention ~100 years
- Hardware address pins (A0–A2) for up to 8 devices on bus
- WP pin for write protection
- Industrial temperature range: typically -40°C to +85°C (specifications may vary by exact lot)

Package

8-pin surface-mount package (SOIC/8-pin small-outline).

Pinout

- Pin count: 8 pins.
- Function: 32 Kbit I2C serial EEPROM (4K × 8). Pins: 1 A0, 2 A1, 3 A2, 4 GND, 5 SDA, 6 SCL, 7 WP, 8 VCC. Uses I2C two-wire interface; device address is 1010 A2 A1 A0, with WP to disable writes. Suitable for 8 devices on a bus (via A0–A2).

Manufacturer

- Manufacturer: Microchip Technology Inc. (the Atmel product line, including AT24C32, is now under Microchip after acquiring Atmel in 2016).
- What kind of company: A global semiconductor company that designs, manufactures, and sells embedded processors and memory devices (including EEPROMs and Flash), analog and mixed-signal ICs, and related software and solutions.

Application

AT24C32CN-SH-T is a 32-kbit I2C serial EEPROM (4K × 8). Common applications:
- Non-volatile storage for microcontroller configuration, calibration data, and user preferences
- Lookup tables, font data and small data libraries in consumer electronics (TVs, audio/video gear, printers)
- Data logging, fault codes, and parameter records in automotive, industrial and medical devices
- Identification/ID memory and patch/storage for peripherals and smart sensors

Equivalent

Equivalent 32-kbit I2C serial EEPROMs to AT24C32CN-SH-T include:
- ST M24C32-W
- Microchip 24LC32B / 24AA32
- NXP 24C32 (24C32N)
- ON Semiconductor CAT24C32
- Fudan Micro FM24C32
All are 32Kbit I2C EEPROMs with similar pinouts and interfaces.

Versand

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