AT28C256-20TC Atmel, AT28C256-20TC Datasheet - Page 24

• Manufacturer Part Number: AT28C256-20TC
• Description: EEPROM 256K 11MIL GRIND - 200NS COM TEMP
• Manufacturer: Atmel

Specifications of AT28C256-20TC

• Product Category: EEPROM
• Memory Size: 256 Kbit
• Organization: 32 K x 8
• Data Retention: 10 yr
• Maximum Operating Current: 50 mA
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: TSOP-28
• Access Time: 150 ns
• Interface Type: SPI
• Minimum Operating Temperature: 0 C
• Output Enable Access Time: 80 ns
• Factory Pack Quantity: 234
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 4.5 V

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