AT28C256E-25UM/883 Atmel, AT28C256E-25UM/883 Datasheet - Page 23

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
29.7
0006M–PEEPR–12/09
Notes:
28T – TSOP
R
2325 Orchard Parkway
San Jose, CA 95131
1. This package conforms to JEDEC reference MO-183.
2. Dimensions D1 and E do not include mold protrusion. Allowable
3. Lead coplanarity is 0.10 mm maximum.
protrusion on E is 0.15 mm per side and on D1 is 0.25 mm per side.
Pin 1 Identifier Area
e
E
TITLE
28T, 28-lead (8 x 13.4 mm) Plastic Thin Small Outline
Package, Type I (TSOP)
A1
b
PIN 1
D1 D
A2
A
SEATING PLANE
0º ~ 5º
SYMBOL
L
L1
A
A1
A2
D
D1
E
L
b
c
e
13.20
11.70
0.05
0.90
7.90
0.50
0.17
0.10
COMMON DIMENSIONS
MIN
(Unit of Measure = mm)
L1
GAGE PLANE
c
0.25 BASIC
0.55 BASIC
13.40
11.80
NOM
1.00
8.00
0.60
0.22
DRAWING NO.
13.60
11.90
MAX
1.20
0.15
1.05
8.10
0.70
0.27
0.21
AT28C256
28T
Note 2
Note 2
NOTE
12/06/02
REV.
C
23

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