AT28HC256E-70PI Atmel, AT28HC256E-70PI Datasheet

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... DATA Polling of I/O7. Once the end of a write cycle has been detected a new access for a read or write can begin. Atmel’s 28HC256 has additional features to ensure high quality and manufacturability. The device utilizes internal error correction for extended endurance and improved data retention characteristics ...

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Pin Configurations Pin Name A0 - A14 I/ 2.1 28-lead TSOP Top View OE 1 A11 A13 VCC 7 A14 8 A12 9 A7 ...

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... Read The AT28HC256 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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... A software controlled data protection feature has been implemented on the AT28HC256. When enabled, the software data protection (SDP), will prevent inadvertent writes. The SDP feature may be enabled or disabled by the user; the AT28HC256 is shipped from Atmel with SDP disabled. SDP is enabled by the host system issuing a series of three write commands; three specific bytes of data are written to three specific addresses (refer to “ ...

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DC and AC Operating Range Ind. Operating Temperature (Case) Mil. V Power Supply CC 6. Operating Modes Mode Read (2) Write Standby/Write Inhibit Write Inhibit Write Inhibit Output Disable Chip Erase Notes can ...

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AC Read Characteristics Symbol Parameter t Address to Output Delay ACC ( Output Delay CE ( Output Delay OE (3)( Output Float DF Output Hold from OE, CE ...

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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% ...

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AC Write Characteristics Symbol Parameter Address, OE Setup Time AS OES t Address Hold Time AH t Chip Select Setup Time CS t Chip Select Hold Time CH t Write Pulse Width (WE or CE) WP ...

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Page Mode Write Characteristics Symbol Parameter t Write Cycle Time (option available Address Setup Time AS t Address Hold Time AH t Data Setup Time DS t Data Hold Time DH t Write Pulse Width WP t ...

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Software Data Protection (1) Enable Algorithm LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA A0 TO ADDRESS 5555 WRITES ENABLED LOAD DATA XX TO (4) ANY ADDRESS LOAD LAST BYTE TO LAST ADDRESS ...

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Data Polling Characteristics Symbol Parameter t Data Hold Time Hold Time OEH ( Output Delay OE t Write Recovery Time WR Notes: 1. These parameters are characterized and not 100% tested. 2. See ...

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Normalized I Graphs CC AT28HC256 12 0007N–PEEPR–9/09 ...

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Ordering Information 27.1 Military Dual Marked Package 27.1.1 AT28HC256 I (mA ACC (ns) Active Standby 90 80 0.3 120 80 0.3 28D6 28-lead, 0.600" Wide, Non-windowed, Ceramic Dual Inline Package (Cerdip) 28F 28-lead, Non-windowed, Ceramic Bottom-brazed Flat ...

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... Standard Device: Endurance = 10K Write Cycles; Write Time = High Endurance Option: Endurance = 100K Write Cycles F Fast Write Option: Write Time = 3 ms AT28HC256 14 Ordering Code AT28HC256E-90DM/883 AT28HC256E-90FM/883 AT28HC256E-90LM/883 AT28HC256E-90UM/883 AT28HC256E-12DM/883 AT28HC256E-12FM/883 AT28HC256E-12LM/883 AT28HC256E-12UM/883 Ordering Code AT28HC256F-90DM/883 5962-88634 04 XX AT28HC256F-90FM/883 5962-88634 04 ZX AT28HC256F-90LM/883 5962-88634 04 YX AT28HC256F-90UM/883 5962-88634 04 UX AT28HC256F-12DM/883 ...

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... The low power parameters are now standard; therefore, the L, LE and LF suffixes are no longer required. 0007N–PEEPR–9/09 Ordering Code AT28HC256-70JU AT28HC256-70SU AT28HC256-70TU AT28HC256-90JU AT28HC256-90SU AT28HC256-90TU AT28HC256-12JU AT28HC256-12SU AT28HC256-12TU Ordering Code AT28HC256E-90JU AT28HC256E-90SU AT28HC256E-90TU AT28HC256E-12JU AT28HC256E-12SU AT28HC256E-12TU Ordering Code AT28HC256F-90JU AT28HC256F-90SU AT28HC256F-90TU Package Type Options AT28HC256 Package Operation Range 32J 28S 28T 32J Industrial 28S (-40° ...

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... Die Products Contact Atmel Sales for die sales options. AT28HC256 16 0007N–PEEPR–9/09 ...

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Packaging Information 28.1 28D6 – Cerdip Dimensions in Millimeters and (Inches). Controlling dimension: Inches. MIL-STD 1835 D-10 Config A (Glass Sealed) 5.72(0.225) MAX SEATING PLANE 5.08(0.200) 3.18(0.125) 2.54(0.100)BSC 0.46(0.018) 0.20(0.008) 2325 Orchard Parkway San Jose, CA 95131 R 0007N–PEEPR–9/09 ...

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Flatpack 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 AT28HC256 18 9.75(0.384) 1.96(0.077) 1.09(0.043) 7.26(0.286) 6.96(0.274) ...

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PLCC 1.14(0.045) X 45˚ 0.51(0.020)MAX 45˚ MAX (3X) Notes: 1. This package conforms to JEDEC reference MS-016, Variation AE. 2. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is .010"(0.254 mm) per ...

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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 AT28HC256 20 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) ...

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SOIC Dimensions in Millimeters and (Inches). Controlling dimension: Millimeters. 2325 Orchard Parkway San Jose, CA 95131 R 0007N–PEEPR–9/09 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) ...

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TSOP Pin 1 Identifier Area e E Notes: 1. This package conforms to JEDEC reference MO-183. 2. Dimensions D1 and E do not include mold protrusion. Allowable protrusion 0.15 mm per side and on ...

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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 0007N–PEEPR–9/09 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 ...

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