Integrated Circuits (ICs)

AT28HC256F-12UM/883

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Microchip Technology

IC EEPROM 256KBIT PAR 28CPGA

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Integrated Circuits (ICs)

AT28HC256F-12UM/883

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Microchip Technology

IC EEPROM 256KBIT PAR 28CPGA

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	AT28HC256F-12UM/883

Access Time	120 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	3 ms

AT28HC256F Series

5V High-Speed 256Kbit (32Kbit x 8) Parallel EEPROM

...

Part	Voltage - Supply [Min]	Voltage - Supply [Max]	Access Time	Write Cycle Time - Word, Page	Memory Size	Mounting Type	Memory Interface	Memory Type	Memory Format	Technology	Supplier Device Package	Supplier Device Package [y]	Supplier Device Package [x]	Package / Case	Memory Organization	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case [y]	Package / Case [x]	Package / Case	Package / Case	Package / Case
Microchip Technology AT28HC256-12JI	4.5 V	5.5 V	120 ns	10 ms	32 KB	Surface Mount	Parallel	Non-Volatile	EEPROM	EEPROM	32-PLCC	11.43	13.97	32-LCC (J-Lead)	32K x 8	-40 °C	85 °C
Microchip Technology AT28HC256E-12TU-T	4.5 V	5.5 V	120 ns	10 ms	32 KB	Surface Mount	Parallel	Non-Volatile	EEPROM	EEPROM	28-TSOP			28-TSSOP	32K x 8	-40 °C	85 °C	11.8 mm	0.465 "
Microchip Technology AT28HC256E-90TU	4.5 V	5.5 V	90 ns	10 ms	32 KB	Surface Mount	Parallel	Non-Volatile	EEPROM	EEPROM	28-TSOP			28-TSSOP	32K x 8	-40 °C	85 °C	11.8 mm	0.465 "
Microchip Technology AT28HC256F-12UM/883	4.5 V	5.5 V	120 ns	3 ms	32 KB	Through Hole	Parallel	Non-Volatile	EEPROM	EEPROM	28-CPGA	16.51	13.97	28-BCPGA	32K x 8	-55 °C	125 °C
Microchip Technology AT28HC256E-12DM/883	4.5 V	5.5 V	120 ns	10 ms	32 KB	Through Hole	Parallel	Non-Volatile	EEPROM	EEPROM	28-CERDIP			28-CDIP	32K x 8	-55 °C	125 °C			15.24 mm	0.6 in
Microchip Technology AT28HC256E-70PI	4.5 V	5.5 V	70 ns	10 ms	32 KB	Through Hole	Parallel	Non-Volatile	EEPROM	EEPROM	28-PDIP			28-DIP	32K x 8	-40 °C	85 °C				15.24 mm	0.6 in
Microchip Technology AT28HC256F-90TU-T	4.5 V	5.5 V	90 ns	3 ms	32 KB	Surface Mount	Parallel	Non-Volatile	EEPROM	EEPROM	28-TSOP			28-TSSOP	32K x 8	-40 °C	85 °C	11.8 mm	0.465 "
Microchip Technology AT28HC256-90PU	4.5 V	5.5 V	90 ns	10 ms	32 KB	Through Hole	Parallel	Non-Volatile	EEPROM	EEPROM	28-PDIP			28-DIP	32K x 8	-40 °C	85 °C				15.24 mm	0.6 in
Microchip Technology AT28HC256F-12FM/883	4.5 V	5.5 V	120 ns	3 ms	32 KB	Surface Mount	Parallel	Non-Volatile	EEPROM	EEPROM	28-FlatPack Ceramic Bottom-Brazed			28-CFlatPack	32K x 8	-55 °C	125 °C
Microchip Technology AT28HC256-70JC	4.5 V	5.5 V	70 ns	10 ms	32 KB	Surface Mount	Parallel	Non-Volatile	EEPROM	EEPROM	32-PLCC	11.43	13.97	32-LCC (J-Lead)	32K x 8

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	$ 373.48
Microchip Direct	BOX	1	$ 362.60
		25	$ 349.02
		100	$ 335.41
		1000	$ 317.28
		5000	$ 299.15
		10000	$ 281.02

Description

General part information

AT28HC256F Series

The Microchip AT28HC256

is a high-performance 256Kbit Parallel EEPROM available in both Industrial and

Military temp ranges, offering access times to 70ns with power dissipation of

Documents

Technical documentation and resources