AT28HC256N-12JI ATMEL [ATMEL Corporation], AT28HC256N-12JI Datasheet
AT28HC256N-12JI
Related parts for AT28HC256N-12JI
AT28HC256N-12JI Summary of contents
Page 1
... When the AT28HC256N is deselected, the standby current is less than 3 mA. The AT28HC256N 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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... Respect to Ground ...................................-0.6V to +6.25V All Output Voltages with Respect to Ground .............................-0. Voltage on OE and A9 with Respect to Ground ...................................-0.6V to +13.5V AT28HC256N 2 *NOTICE: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent dam- age to the device. This is a stress rating only and ...
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... Device Operation 3446B–PEEPR–4/04 READ: The AT28HC256N 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 ...
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... AT28HC256N will be protected against inadvertent write operations. It should be noted, that once protected the host may still perform a byte or page write to the AT28HC256N. This is done by preceding the data to be written by the same 3-byte com- mand sequence. Once set, SDP will remain active unless the disable command sequence is issued. ...
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... IL H Condition MHz OUT AT28HC256N AT28HC256N-12 -40°C - 85°C 5V ±10 OUT High High Z V High Z IL Min Max Units 10 µA 10 µ ...
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... Min ACC - t after the address transition without impact on t ACC after the falling edge of CE without impact pF). L Max 6 12 AT28HC256N-12 Max Min Max 90 120 90 120 ACC after an address change ...
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... Restriction. AC Write Waveforms WE Controlled CE Controlled 3446B–PEEPR–4/04 Min 100 OES t OEH WPH OEH t OES WPH AT28HC256N Max Units ...
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... Write Pulse Width High WPH Page Mode Write Waveforms t AS Notes 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. Chip Erase Waveforms AT28HC256N 8 (1)(2) t WPH ...
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... OE must be high only when WE and CE are both low. 3446B–PEEPR–4/04 Software Data Protection Disable Algorithm (2) (1)(2) t WPH AT28HC256N (1) LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA 80 TO ADDRESS 5555 LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ...
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... See “AC Read Characteristics” on page 6. Toggle Bit Waveforms 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. AT28HC256N 10 (1) t OEH t OE ...
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... Valid Part Numbers The following table lists standard Atmel products that can be ordered: Device Numbers Speed AT28HC256N 90 AT28HC256N 12 3446B–PEEPR–4/04 Ordering Code AT28HC256N-90JI AT28HC256N-12JI Package Type Package and Temperature Combinations JI JI AT28HC256N Package Operation Range Industrial 32J (-40°C to 85°C) ...
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... Allowable protrusion is .010"(0.254 mm) per side. Dimension D1 and E1 include mold mismatch and are measured at the extreme material condition at the upper or lower parting line. 3. Lead coplanarity is 0.004" (0.102 mm) maximum. 2325 Orchard Parkway San Jose, CA 95131 R AT28HC256N 12 1.14(0.045) X 45˚ PIN NO. 1 IDENTIFIER E1 E ...
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... Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems. © Atmel Corporation 2004. All rights reserved. Atmel subsidiaries. Other terms and product names may be the trademarks of others. Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 ...