ACCESS TIME-MAX:  120 NS

ADDITIONAL FEATURE:  AUTOMATIC WRITE

COMMAND USER INTERFACE:  NO

DATA POLLING:  YES

ENDURANCE:  100000 WRITE/ERASE CYCLES

JESD-30 CODE:  R-PDSO-G28

JESD-609 CODE:  E0

LENGTH:  17.9 MM

MANUFACTURER:  ATMEL CORPORATION

MANUFACTURER PART NUMBER:  AT28HC256E-12SC

MEMORY DENSITY:  262.144 KBIT

MEMORY IC TYPE:  EEPROM

MEMORY WIDTH:  8

MOISTURE SENSITIVITY LEVEL:  2

NUMBER OF FUNCTIONS:  1

NUMBER OF TERMINALS:  28

NUMBER OF WORDS:  32.768 K

NUMBER OF WORDS CODE:  32000

OPERATING MODE:  ASYNCHRONOUS

OPERATING TEMPERATURE-MAX:  70 °C

OPERATING TEMPERATURE-MIN:  0 °C

ORGANIZATION:  32KX8

OUTPUT CHARACTERISTICS:  3-STATE

PACKAGE BODY MATERIAL:  PLASTIC/EPOXY

PACKAGE CODE:  SOP

PACKAGE DESCRIPTION:  SOP, SOP28,.4

PACKAGE EQUIVALENCE CODE:  SOP28,.4

PACKAGE SHAPE:  RECTANGULAR

PACKAGE STYLE:  SMALL OUTLINE

PAGE SIZE:  64 WORDS

PARALLEL/SERIAL:  PARALLEL

PART PACKAGE CODE:  SOIC

PBFREE CODE:  NO

PEAK REFLOW TEMPERATURE (CEL):  240

PIN COUNT:  28

POWER SUPPLIES:  5 V

PROGRAMMING VOLTAGE:  5 V

QUALIFICATION STATUS:  NOT QUALIFIED

SCREENING LEVEL:  MIL-STD-883

SEATED HEIGHT-MAX:  2.65 MM

STANDBY CURRENT-MAX:  300 ΜA

SUBCATEGORY:  EEPROMS

SUPPLY CURRENT-MAX:  80 ΜA

SUPPLY VOLTAGE-MAX (VSUP):  5.5 V

SUPPLY VOLTAGE-MIN (VSUP):  4.5 V

SUPPLY VOLTAGE-NOM (VSUP):  5 V

SURFACE MOUNT:  YES

TECHNOLOGY:  CMOS

TEMPERATURE GRADE:  COMMERCIAL

TERMINAL FINISH:  TIN/LEAD (SN/PB)

TERMINAL FORM:  GULL WING

TERMINAL PITCH:  1.27 MM

TERMINAL POSITION:  DUAL

TIME@PEAK REFLOW TEMPERATURE-MAX (S):  30

TOGGLE BIT:  YES

WIDTH:  7.5 MM

WRITE CYCLE TIME-MAX (TWC):  10 MS