AT28C256E-25UM/883 Atmel, AT28C256E-25UM/883 Datasheet - Page 19

IC EEPROM 256KBIT 250NS 28PGA

AT28C256E-25UM/883

Manufacturer Part Number
AT28C256E-25UM/883
Description
IC EEPROM 256KBIT 250NS 28PGA
Manufacturer
Atmel
Datasheet

Specifications of AT28C256E-25UM/883

Format - Memory
EEPROMs - Parallel
Memory Type
EEPROM
Memory Size
256K (32K x 8)
Speed
250ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Package / Case
28-PGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
AT28C256E-25UM883
29.3
0006M–PEEPR–12/09
Notes:
32J – PLCC
R
2325 Orchard Parkway
San Jose, CA 95131
1. This package conforms to JEDEC reference MS-016, Variation AE.
2. Dimensions D1 and E1 do not include mold protrusion.
3. Lead coplanarity is 0.004" (0.102 mm) maximum.
0.51(0.020)MAX
Allowable protrusion is .010"(0.254 mm) per side. Dimension D1
and E1 include mold mismatch and are measured at the extreme
material condition at the upper or lower parting line.
45 MAX (3X)
1.14(0.045) X 45
B
e
TITLE
32J, 32-lead, Plastic J-leaded Chip Carrier (PLCC)
D2
D1
D
IDENTIFIER
PIN NO. 1
E1
1.14(0.045) X 45
E
SYMBOL
A
E2
A
A1
A2
D
D1
D2
E
E1
B
B1
e
B1
A2
A1
12.319
11.354
14.859
13.894
12.471
0.318(0.0125)
0.191(0.0075)
3.175
1.524
9.906
0.660
0.330
0.381
COMMON DIMENSIONS
MIN
(Unit of Measure = mm)
E2
1.270 TYP
NOM
DRAWING NO.
12.573
11.506
10.922
15.113
14.046
13.487
3.556
2.413
0.813
0.533
MAX
AT28C256
32J
Note 2
Note 2
NOTE
10/04/01
REV.
B
19

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