AT28C256-25DM/883 Atmel, AT28C256-25DM/883 Datasheet - Page 24

• Manufacturer Part Number: AT28C256-25DM/883
• Description: IC EEPROM 256KBIT 250NS 28CDIP
• Manufacturer: Atmel

Specifications of AT28C256-25DM/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-CDIP (0.600", 15.24mm)
• Organization: 32 K x 8
• Interface Type: SPI
• Access Time: 150 ns
• Output Enable Access Time: 100 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Current: 50 mA
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 55 C
• Operating Supply Voltage: 2.7 V, 3.6 V
• 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