Factory Lead Time  

14 Weeks

Mount  

Surface Mount

Mounting Type  

Surface Mount

Package / Case  

28-SOIC (0.295, 7.50mm Width)

Number of Pins  

28

Memory Types  

Non-Volatile

Usage Level  

Military grade

Operating Temperature  

-40°C~85°C TC

Packaging  

Tube

Published  

1997

JESD-609 Code  

e3

Pbfree Code  

yes

Part Status  

Active

Moisture Sensitivity Level (MSL)  

2 (1 Year)

Number of Terminations  

28

Terminal Finish  

Matte Tin (Sn) - annealed

Additional Feature  

AUTOMATIC WRITE

Voltage - Supply  

4.5V~5.5V

Terminal Position  

DUAL

Peak Reflow Temperature (Cel)  

250

Number of Functions  

1

Supply Voltage  

5V

Terminal Pitch  

1.27mm

Frequency  

5MHz

Time@Peak Reflow Temperature-Max (s)  

40

Base Part Number  

AT28HC256

Operating Supply Voltage  

5V

Power Supplies  

5V

Memory Size  

256Kb 32K x 8

Nominal Supply Current  

80mA

Access Time  

120ns

Memory Format  

EEPROM

Memory Interface  

Parallel

Organization  

32KX8

Output Characteristics  

3-STATE

Memory Width  

8

Write Cycle Time - Word, Page  

10ms

Density  

256 kb

Standby Current-Max  

0.0003A

Screening Level  

MIL-STD-883

Programming Voltage  

5V

Endurance  

10000 Write/Erase Cycles

Write Cycle Time-Max (tWC)  

10ms

Data Polling  

YES

Toggle Bit  

YES

Command User Interface  

NO

Page Size  

64words

Length  

17.9mm

Height Seated (Max)  

2.65mm

Width  

7.5mm

Radiation Hardening  

No

RoHS Status  

ROHS3 Compliant

Lead Free  

Lead Free