AT28C256-20UM/883 Atmel, AT28C256-20UM/883 Datasheet - Page 24
![IC EEPROM 256KBIT 200NS 28PGA](/photos/7/27/72787/28u-pga_sml.jpg)
AT28C256-20UM/883
Manufacturer Part Number
AT28C256-20UM/883
Description
IC EEPROM 256KBIT 200NS 28PGA
Manufacturer
Atmel
Datasheet
1.AT28C256-15PU.pdf
(25 pages)
Specifications of AT28C256-20UM/883
Format - Memory
EEPROMs - Parallel
Memory Type
EEPROM
Memory Size
256K (32K x 8)
Speed
200ns
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
29.8
24
28U – PGA
Dimensions in Millimeters and (Inches).
Controlling dimension: Inches.
AT28C256
R
2325 Orchard Parkway
San Jose, CA 95131
16.71(0.658)
16.31(0.642)
TITLE
28U, 28-pin, Ceramic Pin Grid Array (PGA)
10.41(0.410)
13.74(0.540)
13.36(0.526)
14.17(0.558)
13.77(0.542)
9.91(0.390)
15.24(0.600)
14.88(0.586)
2.54(0.100) TYP
12.70(0.500) TYP
2.54(0.100) TYP
2.57(0.101)
2.06(0.081)
7.26(0.286)
6.50(0.256)
1.57(0.062)
1.83(0.072)
3.12(0.123)
2.62(0.103)
1.40(0.055)
1.14(0.045)
0.58(0.023)
0.43(0.017)
DRAWING NO.
28U
0006M–PEEPR–12/09
10/21/03
REV.
B