AT93C66B-MEHM-T

Obsolete

Microchip Technology

IC EEPROM 4KBIT 3-WIRE 8XDFN

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AT93C66B-MEHM-T

Obsolete

Microchip Technology

IC EEPROM 4KBIT 3-WIRE 8XDFN

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Description Specifications Series Pricing CAD Documents

Description

General part information

93C66B Series

The Microchip 93C66B device is a 4Kb Microwire (3-wire) Serial EEPROM with dedicated 16-bit memory organization and a voltage operation range of 4.5 - 5.5V. Also available are the 93C66A for dedicated 8-bit memory organization and the 93C66C for hardware selectable word size using the ORG pin. The 93C66B is optimized for use in consumer, industrial, and automotive applications where reliable and dependable nonvolatile memory storage is essential. The device is available in a variety of Pb-free packages including SOT-23, PDIP, SOIC, MSOP, DFN and TSSOP.

Technical Specifications

Parameters and characteristics for this part

Specification	AT93C66B-MEHM-T

Clock Frequency	2 MHz
Grade	Automotive
Memory Depth (Option 1)	256
Memory Depth (Option 2)	512
Memory Format	EEPROM
Memory Interface (Type)	Serial
Memory Interface Wire Count	3
Memory Organization	512 x 8, 256 x 16
Memory Size	4 Kbit
Memory Type	Non-Volatile
Memory Width (Option 1)	16 bit
Memory Width (Option 2)	8 bit
Mounting Type	Surface Mount
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Package / Case	8-XFDFN
Package Length	1.8 mm
Package Name	8-XDFN
Package Width	2.2 mm
Qualification	AEC-Q100
Technology	EEPROM
Voltage - Supply (Maximum)	5.5 V
Voltage - Supply (Minimum)	1.7 V
Write Cycle Time - Page	5 ms
Write Cycle Time - Word	5 ms

93C66B Series

4Kb 5V Microwire (3-wire) Serial EEPROM with 16-Bit Organization

Part	Package Length	Package Name	Package Width	Memory Interface (Type)	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Memory Format	Technology	Memory Width	Memory Depth	Operating Temperature (Max)	Operating Temperature (Min)	Mounting Type	Write Cycle Time - Word	Write Cycle Time - Page	Memory Type	Memory Size	Clock Frequency	Grade	Memory Organization	Memory Width (Option 1)	Memory Depth (Option 1)	Memory Depth (Option 2)	Memory Width (Option 2)	Qualification	Package / Case	Memory Interface Wire Count
Microchip Technology 93C66B-I/P	0.3 in	8-DIP 8-PDIP	7.62 mm	Microwire	5.5 V	4.5 V	EEPROM	EEPROM	16 bit	256	85 °C	-40 °C	Through Hole	2 ms	2 ms	Non-Volatile	4 Kbit	2 MHz
Microchip Technology AT93C66B-MEHM-T	1.8 mm	8-XDFN	2.2 mm	Serial	5.5 V	1.7 V	EEPROM	EEPROM			85 °C	-40 °C	Surface Mount	5 ms	5 ms	Non-Volatile	4 Kbit	2 MHz	Automotive	256 x 16 512 x 8	16 bit	256	512	8 bit	AEC-Q100	8-XFDFN	3
Microchip Technology 93C66BT-E/MNY	2 mm	8-TDFN	3 mm	Microwire	5.5 V	4.5 V	EEPROM	EEPROM	16 bit	256	125 °C	-40 °C	Surface Mount	2 ms	2 ms	Non-Volatile	4 Kbit	2 MHz								8-WFDFN Exposed Pad
Microchip Technology 93C66B-I/MS	0.118 in	8-MSOP 8-TSSOP 8-MSOP	3 mm	Microwire	5.5 V	4.5 V	EEPROM	EEPROM	16 bit	256	85 °C	-40 °C	Surface Mount	2 ms	2 ms	Non-Volatile	4 Kbit	2 MHz
Microchip Technology 93C66B-I/ST	0.173 in	8-TSSOP	4.4 mm	Microwire	5.5 V	4.5 V	EEPROM	EEPROM	16 bit	256	85 °C	-40 °C	Surface Mount	2 ms	2 ms	Non-Volatile	4 Kbit	2 MHz
Microchip Technology AT93C66B-SSHM-B	0.154 in	8-SOIC	3.9 mm	Serial	5.5 V	1.7 V	EEPROM	EEPROM			85 °C	-40 °C	Surface Mount	5 ms	5 ms	Non-Volatile	4 Kbit	2 MHz		256 x 16 512 x 8	8 bit	512	256	16 bit			3
Microchip Technology AT93C66B-SSHM-T	0.154 in	8-SOIC	3.9 mm	Serial	5.5 V	1.7 V	EEPROM	EEPROM			85 °C	-40 °C	Surface Mount	5 ms	5 ms	Non-Volatile	4 Kbit	2 MHz		256 x 16 512 x 8	8 bit	512	256	16 bit			3
Microchip Technology 93C66BT-I/ST	0.173 in	8-TSSOP	4.4 mm	Microwire	5.5 V	4.5 V	EEPROM	EEPROM	16 bit	256	85 °C	-40 °C	Surface Mount	2 ms	2 ms	Non-Volatile	4 Kbit	2 MHz
Microchip Technology 93C66BT-E/OT		SOT-23-6		Microwire	5.5 V	4.5 V	EEPROM	EEPROM	16 bit	256	125 °C	-40 °C	Surface Mount	2 ms	2 ms	Non-Volatile	4 Kbit	2 MHz								SOT-23-6
Microchip Technology AT93C66B-XHM-B	0.173 in	8-TSSOP	4.4 mm	Serial	5.5 V	1.7 V	EEPROM	EEPROM			85 °C	-40 °C	Surface Mount	5 ms	5 ms	Non-Volatile	4 Kbit	2 MHz		256 x 16 512 x 8	8 bit	512	256	16 bit			3

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

AT93C66B-MEHM-T | Datasheet