AT28HC64B-70TC Atmel, AT28HC64B-70TC Datasheet
AT28HC64B-70TC
Specifications of AT28HC64B-70TC
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AT28HC64B-70TC Summary of contents
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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 AT28C040 has additional features to ensure high quality and manufacturabil- ity. The device utilizes internal error correction for extended endurance and improved data retention characteristics ...
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Pin Configurations Pin Name Function A0 - A18 Addresses CE Chip Enable OE Output Enable WE Write Enable I/O0 - I/O7 Data Inputs/Outputs NC No Connect 2.1 44-lead LCC – Top View A12 ...
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Block Diagram 4. Absolute Maximum Ratings* Temperature Under Bias................................ -55°C to +125°C Storage Temperature ..................................... -65°C to +150°C All Input Voltages (including NC pins) with Respect to Ground ...................................-0.6V to +6.25V All Output Voltages with Respect to Ground .............................-0.6V ...
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... Reading the toggle bit may begin at any time during the write cycle. 5.6 Data Protection If precautions are not taken, inadvertent writes may occur during transitions of the host system power supply. Atmel memory against inadvertent writes. AT28C040 read operation will effectively be a polling operation. ...
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... A software controlled data protection feature has been implemented on the AT28C040. When enabled, the software data protection (SDP), will prevent inadvertent writes. The SDP feature may be enabled or disabled by the user; the AT28C040 is shipped from Atmel with SDP disabled. SDP is enabled when the host system issues a series of three write commands; three specific bytes of data are written to three specific addresses (refer to Software Data Protection Algo- rithm) ...
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DC and AC Operating Range Operating Temperature (Case) V Power Supply CC 7. Operating Modes Mode Read (2) Write Write Inhibit Write Inhibit Output Disable Notes can Refer to ...
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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 t Output Hold from OE, ...
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AC Write Characteristics Symbol Parameter Address, OE Set-up Time AS OES t Address Hold Time AH t Chip Select Set-up Time CS t Chip Select Hold Time CH t Write Pulse Width (WE or CE) WP ...
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Page Mode Characteristics Symbol Parameter t Write Cycle Time WC t Address Set-up Time AS t Address Hold Time AH t Data Set-up Time DS t Data Hold Time DH t Write Pulse Width WP t Byte Load Cycle ...
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Software Data Protection 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 ENTER ...
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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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Ordering Information 25.1 Standard Packaging I (mA ACC (ns) Active 50 200 AT28C040-20FI SL703 50 AT28C040-20LI SL703 Note: 1. SL703 requires testing to Mil-883 standards; SL703 is marked on the package. 32F 32-Lead, Non-Windowed, Ceramic Bottom-Brazed Flat ...
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Packaging Information 26.1 32F – Flatpack Dimensions in Millimeters and (Inches). Controlling dimension: Inches. JEDEC Outline MO-115 AA 21.08(0.830) 20.60(0.811) 12.40(0.488) 11.99(0.472) 10.36(0.408) 2325 Orchard Parkway San Jose, CA 95131 R 0542F–PEEPR–2/09 PIN #1 ID 0.18(0.007) 0.10(0.004) 9.02(0.355) 1.83(0.072) ...
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LCC Dimensions in Millimeters and (Inches) Controlling dimension: Inches MIL-STD-1835 C-5 16.81(0.662) 16.26(0.640) 12.70(0.500) BSC 1.27(0.050) TYP 2325 Orchard Parkway San Jose, CA 95131 R AT28C040 14 16.81(0.662) 16.26(0.640) PIN 1 1.40(0.055) 1.14(0.045) 2.41(0.095) 1.91(0.075) 12.70(0.500) BSC ...
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... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...