Integrated Circuits (ICs)

AT28C256E-20UM/883

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Microchip Technology

IC EEPROM 256KBIT PAR 28CPGA

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Integrated Circuits (ICs)

AT28C256E-20UM/883

Active

Microchip Technology

IC EEPROM 256KBIT PAR 28CPGA

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DocumentsDatasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	AT28C256E-20UM/883

Access Time	200 ns
Memory Format	EEPROM
Memory Interface	Parallel
Memory Organization	32K x 8
Memory Size	32 KB
Memory Type	Non-Volatile
Mounting Type	Through Hole
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-55 °C
Package / Case	28-BCPGA
Supplier Device Package	28-CPGA
Supplier Device Package [x]	13.97
Supplier Device Package [y]	16.51
Technology	EEPROM
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V
Write Cycle Time - Word, Page	10 ms

AT28C256E Series

5V 256Kbit (32Kbit x 8) Parallel EEPROM with Software Data Protection

Part	Memory Size	Mounting Type	Supplier Device Package	Write Cycle Time - Word, Page	Memory Format	Technology	Operating Temperature [Min]	Operating Temperature [Max]	Memory Interface	Memory Organization	Voltage - Supply [Min]	Voltage - Supply [Max]	Memory Type	Package / Case	Package / Case	Package / Case	Access Time	Supplier Device Package [y]	Supplier Device Package [x]	Package / Case [y]	Package / Case [x]	Package / Case
Microchip Technology AT28C256-20DM/883-815	32 KB	Through Hole	28-CERDIP	10 ms	EEPROM	EEPROM	-55 °C	125 °C	Parallel	32K x 8	4.5 V	5.5 V	Non-Volatile	15.24 mm	0.6 in	28-CDIP	200 ns
Microchip Technology AT28C256-25LM/883-829	32 KB	Surface Mount	32-LCC (11.43x13.97)	10 ms	EEPROM	EEPROM	-55 °C	125 °C	Parallel	32K x 8	4.5 V	5.5 V	Non-Volatile			32-CLCC	250 ns
Microchip Technology AT28C256E-15UM/883-815	32 KB	Through Hole	28-CPGA	10 ms	EEPROM	EEPROM	-55 °C	125 °C	Parallel	32K x 8	4.5 V	5.5 V	Non-Volatile			28-BCPGA	150 ns	16.51	13.97
Microchip Technology AT28C256-15TU-T	32 KB	Surface Mount	28-TSOP	10 ms	EEPROM	EEPROM	-40 °C	85 °C	Parallel	32K x 8	4.5 V	5.5 V	Non-Volatile			28-TSSOP	150 ns			11.8 mm	0.465 "
Microchip Technology AT28C256E-20UM/883	32 KB	Through Hole	28-CPGA	10 ms	EEPROM	EEPROM	-55 °C	125 °C	Parallel	32K x 8	4.5 V	5.5 V	Non-Volatile			28-BCPGA	200 ns	16.51	13.97
Microchip Technology AT28C256-20LM/883	32 KB	Surface Mount	32-LCC (11.43x13.97)	10 ms	EEPROM	EEPROM	-55 °C	125 °C	Parallel	32K x 8	4.5 V	5.5 V	Non-Volatile			32-CLCC	200 ns
Microchip Technology AT28C256-20UM/883-815	32 KB	Through Hole	28-CPGA	10 ms	EEPROM	EEPROM	-55 °C	125 °C	Parallel	32K x 8	4.5 V	5.5 V	Non-Volatile			28-BCPGA	200 ns	16.51	13.97
Microchip Technology AT28C256E-15SU-T	32 KB	Surface Mount	28-SOIC	10 ms	EEPROM	EEPROM	-40 °C	85 °C	Parallel	32K x 8	4.5 V	5.5 V	Non-Volatile			28-SOIC	150 ns			7.5 mm	0.295 in
Microchip Technology AT28C256E-15PC	32 KB	Through Hole	28-PDIP	10 ms	EEPROM	EEPROM			Parallel	32K x 8	4.5 V	5.5 V	Non-Volatile		15.24 mm	28-DIP	150 ns					0.6 in
Microchip Technology AT28C256-15PU	32 KB	Through Hole	28-PDIP	10 ms	EEPROM	EEPROM	-40 °C	85 °C	Parallel	32K x 8	4.5 V	5.5 V	Non-Volatile		15.24 mm	28-DIP	150 ns					0.6 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Box	20	$ 347.02
Microchip Direct	BOX	1	$ 336.91
		25	$ 324.28
		100	$ 311.64
		1000	$ 294.79
		5000	$ 277.96
		10000	$ 261.10

Description

General part information

AT28C256E Series

The Microchip AT28C256 is a high-performance

256Kbit Parallel EEPROM available in both Industrial and Military temp ranges, offering

access times to 150ns with power dissipation of 440mW. Deselected, CMOS standby

Documents

Technical documentation and resources