AT28HC256E-90PU Atmel, AT28HC256E-90PU Datasheet - Page 23

• Manufacturer Part Number: AT28HC256E-90PU
• Description: IC EEPROM 256KBIT 90NS 28DIP
• Manufacturer: Atmel

Specifications of AT28HC256E-90PU

• Format - Memory: EEPROMs - Parallel
• Memory Type: EEPROM
• Memory Size: 256K (32K x 8)
• Speed: 90ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

28.7
0007N–PEEPR–9/09
28U – PGA
Dimensions in Millimeters and (Inches).
Controlling dimension: Inches.
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)
1.83(0.072)
1.57(0.062)
2.62(0.103)
3.12(0.123)
1.14(0.045)
0.43(0.017)
1.40(0.055)
0.58(0.023)
DRAWING NO.
AT28HC256
28U
10/21/03
REV.
B
23