AT28C256-20JC ATMEL Corporation, AT28C256-20JC Datasheet
AT28C256-20JC
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AT28C256-20JC Summary of contents
Page 1
... When the device is deselected, the CMOS standby current is less than 200 µA. The AT28C256 is accessed like a Static RAM for the read or write cycle without the need for external components. The device contains a 64-byte page register to allow writing bytes simultaneously ...
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... A13 VCC 7 A14 8 A12 2.2 28-lead PGA Top View AT28C256 2 Function Addresses Chip Enable Output Enable Write Enable Data Inputs/Outputs No Connect Don’t Connect 2.3 32-pad LCC, 28-lead PLCC Top View 28 A10 I/O7 25 I/O6 24 I/O5 23 I/O4 22 I/O3 ...
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... Read The AT28C256 is accessed like a Static RAM. When CE and OE are low and WE is high, the data stored at the memory location determined by the address pins is asserted on the outputs. The outputs are put in the high impedance state when either high. This dual-line control gives designers flexibility in preventing bus contention in their system ...
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... After writing the 3-byte command sequence and after t protected against inadvertent write operations. It should be noted, that once protected the host may still perform a byte or page write to the AT28C256. This is done by preceding the data to be written by the same 3-byte command sequence used to enable SDP. ...
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... Ind 0. Mil 2. MHz OUT -400 µA OH AT28C256 AT28C256-25 AT28C256-35 -55°C - 125°C -55°C - 125°C 5V ± 10% 5V ± 10 High High Z V High Z IL Stresses beyond those listed under “Absolute Maximum Ratings” ...
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... ACC after the falling edge of CE without impact pF). L AT28C256-25 AT28C256-35 Max Min Max Min Max 200 250 350 200 250 350 80 0 100 0 100 ...
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... Input Test Waveforms and Measurement Level 12. Output Test Load 13. Pin Capacitance ( MHz 25°C Symbol Typ OUT Note: 1. This parameter is characterized and is not 100% tested. 0006K–PEEPR–01/ < Max 6 12 AT28C256 Units Conditions OUT 7 ...
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... Chip Select Hold Time CH t Write Pulse Width ( Data Setup Time Data, OE Hold Time DH OEH t Time to Data Valid DV Note Restriction 15. AC Write Waveforms 15.1 WE Controlled 15.2 CE Controlled AT28C256 8 Min Max Units 100 (1) NR 0006K–PEEPR–01/08 ...
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... A6 through A14 must specify the same page address during each high to low transition of WE (or CE must be high only when WE and CE are both low. 18. Chip Erase Waveforms µsec (min msec (min 12.0V ± 0.5V H 0006K–PEEPR–01/08 Min AT28C256 AT28C256F 100 50 (1)(2) AT28C256 Max Units 150 µ ...
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... Software Protected Write Cycle Waveforms Notes through A14 must specify the same page address during each high to low transition of WE (or CE) after the software code has been entered must be high only when WE and CE are both low. AT28C256 10 20. Software Data Protection Disable Algorithm (2) ...
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... Notes: 1. Toggling either both OE and CE will operate toggle bit. 2. Beginning and ending state of I/O6 will vary. 3. Any address location may be used but the address should not vary. 0006K–PEEPR–01/08 (1) 6. (1) 6. (1)(2)(3) AT28C256 Min Typ Max Min Typ Max ...
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... Normalized I Graphs CC AT28C256 12 0006K–PEEPR–01/08 ...
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... AT28C256(E,F)-15PI AT28C256(E,F)-15SI AT28C256(E,F)-15TI AT28C256(E,F)-15DM/883 AT28C256(E,F)-15FM/883 AT28C256(E,F)-15LM/883 AT28C256(E,F)-15UM/883 AT28C256(E,F)-20DM/883 AT28C256(E,F)-20FM/883 AT28C256(E,F)-20LM/883 AT28C256(E,F)-20UM/883 AT28C256(E,F)-25DM/883 AT28C256(E,F)-25FM/883 AT28C256(E,F)-25LM/883 AT28C256(E,F)-25UM/883 AT28C256(E,F)-35UM/883 Package Type Options AT28C256 Package Operation Range 32J Industrial 28P6 (-40° ...
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... Ceramic Pin Grid Array (PGA) W Die Blank Standard Device: Endurance = 10K Write Cycles; Write Time = High Endurance Option: Endurance = 100K Write Cycles F Fast Write Option: Write Time = 3 ms AT28C256 14 Ordering Code 5962-88525 16 UX 5962-88525 16 XX 5962-88525 16 YX 5962-88525 16 ZX 5962-88525 15 UX 5962-88525 15 XX ...
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... YX 5962-88525 04 ZX 5962-88525 13 UX 5962-88525 13 XX 5962-88525 13 YX 5962-88525 13 ZX 5962-88525 11 UX 5962-88525 11 XX 5962-88525 11 YX 5962-88525 11 ZX Package Type Options AT28C256 Package Operation Range 28U Military/883C 28D6 Class B, Fully Compliant 32L (-55° 125° C) 28F 28U Military/883C ...
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... Ceramic Pin Grid Array (PGA) W Die Blank Standard Device: Endurance = 10K Write Cycles; Write Time = High Endurance Option: Endurance = 100K Write Cycles F Fast Write Option: Write Time = 3 ms AT28C256 16 Ordering Code 5962-88525 05 UX 5962-88525 05 XX 5962-88525 05 YX 5962-88525 05 ZX 5962-88525 03 UX 5962-88525 03 XX ...
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... Blank Standard Device: Endurance = 10K Write Cycles; Write Time = Fast Write Option: Write Time = 3 ms 0006K–PEEPR–01/08 Ordering Code AT28C256(E, F)-15JU AT28C256(E, F)-15PU AT28C256(E, F)-15SU AT28C256(E, F)-15TU Package Type Options AT28C256 Package Operation Range 32J Industrial 28P6 (-40° 85° C) ...
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... Speed AT28C256 15 AT28C256E 15 AT28C256F 15 AT28C256 20 AT28C256E 20 AT28C256F 20 AT28C256 25 AT28C256E 25 AT28C256F 25 29. Die Products Reference Section: Parallel EEPROM Die Products AT28C256 18 Package and Temperature Combinations JI, JU, PI, PU, SI, SU, TI, TU, DM/883, FM/883, LM/883, UM/883 JI, JU, PI, PU, SI, SU, TI, TU, DM/883, FM/883, LM/883, UM/883 JI, JU, PI, PU, SI, SU, TI, TU, DM/883, FM/883, LM/883, UM/883 ...
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... San Jose, CA 95131 R 0006K–PEEPR–01/08 37.85(1.490) 36.58(1.440) 33.02(1.300) REF 1.65(0.065) 1.14(0.045) 15.70(0.620) 15.00(0.590) 0º~ 15º REF 17.80(0.700) MAX TITLE 28D6, 28-lead, 0.600" Wide, Non-windowed, Ceramic Dual Inline Package (Cerdip) AT28C256 PIN 1 15.49(0.610) 12.95(0.510) 0.127(0.005)MIN 1.52(0.060) 0.38(0.015) 0.66(0.026) 0.36(0.014) DRAWING NO. 10/23/03 REV. 28D6 B ...
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... Dimensions in Millimeters and (Inches). Controlling dimension: Inches. MIL-STD 1835 F-12 Config B PIN #1 ID 18.49(0.728) 18.08(0.712) 10.57(0.416) 0.23(0.009) 0.10(0.004) 2325 Orchard Parkway San Jose, CA 95131 R AT28C256 20 9.75(0.384) 1.96(0.077) 1.09(0.043) 7.26(0.286) 6.96(0.274) TITLE 28F, 28-lead, Non-windowed, Ceramic Bottom-brazed Flat Package (FlatPack) 9.40(0.370) 6.35(0.250) 0.56(0.022) ...
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... Lead coplanarity is 0.004" (0.102 mm) maximum. 2325 Orchard Parkway San Jose, CA 95131 R 0006K–PEEPR–01/08 1.14(0.045) X 45˚ PIN NO. 1 IDENTIFIER TITLE 32J, 32-lead, Plastic J-leaded Chip Carrier (PLCC) AT28C256 0.318(0.0125) 0.191(0.0075 COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL MIN NOM MAX A 3.175 – ...
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... LCC Dimensions in Millimeters and (Inches). Controlling dimension: Inches. MIL-STD 1835 C-12 14.22(0.560) 13.72(0.540) 10.16(0.400) BSC 1.27(0.050) TYP 2325 Orchard Parkway San Jose, CA 95131 R AT28C256 22 11.63(0.458) 11.23(0.442) PIN 1 1.40(0.055) 1.14(0.045) 2.41(0.095) 1.91(0.075) 0.305(0.012) 0.178(0.007) 0.737(0.029) 0.533(0.021) 1.02(0.040) X 45˚ ...
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... A1 0.381 – D 36.703 – E 15.240 – E1 13.462 – B 0.356 – B1 1.041 – L 3.048 – C 0.203 – eB 15.494 – e 2.540 TYP DRAWING NO. AT28C256 MAX NOTE 4.826 – 37.338 Note 2 15.875 13.970 Note 2 0.559 1.651 3.556 0.381 17.526 09/28/01 REV. 28P6 B 23 ...
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... SOIC Dimensions in Millimeters and (Inches). Controlling dimension: Millimeters. 2325 Orchard Parkway San Jose, CA 95131 R AT28C256 24 0.51(0.020) 0.33(0.013) 7.60(0.2992) 7.40(0.2914) PIN 1 1.27(0.50) BSC TOP VIEW 18.10(0.7125) 17.70(0.6969) 0.30(0.0118) 0.10(0.0040) 0º ~ 8º 1.27(0.050) 0.40(0.016) TITLE 28S, 28-lead, 0.300" Body, Plastic Gull Wing Small Outline (SOIC) JEDEC Standard MS-013 10 ...
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... Orchard Parkway San Jose, CA 95131 R 0006K–PEEPR–01/08 PIN SEATING PLANE A1 TITLE 28T, 28-lead (8 x 13.4 mm) Plastic Thin Small Outline Package, Type I (TSOP) AT28C256 0º ~ 5º GAGE PLANE COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL MIN NOM MAX A – ...
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... PGA Dimensions in Millimeters and (Inches). Controlling dimension: Inches. 16.71(0.658) 16.31(0.642) 2325 Orchard Parkway San Jose, CA 95131 R AT28C256 26 13.74(0.540) 2.57(0.101) 13.36(0.526) 2.06(0.081) 15.24(0.600) 14.88(0.586) 14.17(0.558) 13.77(0.542) 2.54(0.100) TYP 12.70(0.500) TYP 2.54(0.100) TYP 10.41(0.410) 9.91(0.390) TITLE 28U, 28-pin, Ceramic Pin Grid Array (PGA) 7 ...
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... Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. © 2008 Atmel Corporation. All rights reserved. Atmel Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. International Atmel Asia ...