25LC040AT-I/SN

Maximum Operating Temperature : + 85 C
Mounting Style : SMD/SMT
Maximum Operating Current : 5 mA
Maximum Clock Frequency : 10 MHz
Memory Size : 4 Kbit
Data Retention : 200 Years
Operating Supply Voltage : 3.3 V, 5 V
Package / Case : SOIC-8 Narrow
Organization : 512 x 8


Pinout






Description

The 25LC040AT-I/SN is one member of the 25LC040A series.The Microchip Technology Inc. 25XX040A* is a 4 Kbit Serial Electrically Erasable Programmable Read-Only Memory (EEPROM).The memory is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus.The bus signals required are a clock input(SCK) plus separate data in (SI) and data out (SO)lines. Access to 25LC040AT-I/SN is controlled through a Chip Select (CS) input.

Features of the 25LC040AT-I/SN are:(1)512 x 8-Bit organization; (2)write page mode (up to 16 bytes); (3)sequential read ; (4)self-timed erase and write cycles (5 ms max.); (5)Pb-free Packages Available; (6)Max. Clock 10 MHz; (7)power-on/off data protection circuitry; (8)write enable latch; (9)write-protect pin.Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transitions on its inputs will be ignored, with the exception of Chip Select, allowing the host to service higher priority interrupts.A low level on this pin selects the device. A high level deselects the device and forces it into Standby mode.However,a programming cycle which is already initiated or in progress will be completed, regardless of the CS input signal. If CS is brought high during a program cycle, 25LC040AT-I/SN will go into Standby mode as soon as the programming cycle is complete.

The absolute maximum ratings of the 25LC040AT-I/SN can be summarized as:(1)Vcc:6.5V;(2)all inputs and outputs w.r.t. VSS:-0.6 to Vcc+1.0V;(3)ESD protection on all pins:4kV;(4)ambient temperature under bias:-40 to 125;(5)storage temperature:-65 to 150.Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied.Exposure to maximum rating conditions for an extended period of time may affect device reliability.Microchip's customer notification service helps keep customers current on Microchip products. Subscribers will receive e-mail notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest.

Parameters:

Technical/Catalog Information	25LC040AT-I/SN
Vendor	Microchip Technology
Category	Integrated Circuits (ICs)
Memory Type	EEPROM
Memory Size	4K (512 x 8)
Speed	10MHz
Interface	SPI, 3-Wire Serial
Package / Case	8-SOIC (3.9mm Width)
Packaging	Tape & Reel (TR)
Voltage - Supply	2.5 V ~ 5.5 V
Operating Temperature	-40°C ~ 85°C
Format - Memory	EEPROMs - Serial
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	25LC040AT I SN 25LC040ATISN