X28HC64J-70 Xicor, X28HC64J-70 Datasheet
X28HC64J-70
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X28HC64J-70 Summary of contents
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... I I I/O 3 3857 FHD F02.1 © Xicor, Inc. 1994, 1995, 1996 Patents Pending 3857-3.0 8/5/97 T1/C0/D0 EW X28HC64 2 • High Reliability —Endurance: 100,000 Cycles —Data Retention: 100 Years • JEDEC Approved Byte-Wide Pinout Control DESCRIPTION PP The X28HC64 Xicor’ ...
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X28HC64 PIN DESCRIPTIONS Addresses (A – The Address inputs select an 8-bit memory location during a read or write operation. Chip Enable (CE) The Chip Enable input must be LOW to enable all read/ write operations. When ...
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X28HC64 DEVICE OPERATION Read Read operations are initiated by both OE and CE LOW. The read operation is terminated by either returning HIGH. This two line control architecture elimi- nates bus contention in a system environment. The ...
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X28HC64 DATA POLLING I/O 7 Figure 2. DATA Polling Bus Sequence LAST WRITE I – Figure 3. DATA Polling Software Flow WRITE DATA WRITES COMPLETE? YES SAVE LAST DATA ...
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X28HC64 THE TOGGLE BIT I/O 6 Figure 4. Toggle Bit Bus Sequence LAST WRITE I Beginning and ending state of I/O 6 will vary. Figure 5. Toggle Bit Software Flow LAST WRITE LOAD ACCUM ...
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... SOFTWARE DATA PROTECTION The X28HC64 offers a software controlled data protec- tion feature. The X28HC64 is shipped from Xicor with the software data protection NOT ENABLED; that is, the device will be in the standard operating mode. In this mode data should be protected during power-up/-down operations through the use of external circuits ...
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X28HC64 SOFTWARE DATA PROTECTION Figure 6. Timing Sequence—Byte or Page Write DATA AA ADDR 1555 CE WE Figure 7. Write Sequence for Software Data Protection WRITE DATA AA TO ADDRESS 1555 WRITE DATA 55 TO ADDRESS 0AAA ...
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X28HC64 RESETTING SOFTWARE DATA PROTECTION Figure 8. Reset Software Data Protection Timing Sequence Vcc DATA AA 55 ADDR 1555 0AAA CE WE Figure 9. Software Sequence to Deactivate Software Data Protection WRITE DATA AA TO ADDRESS 1555 WRITE DATA 55 ...
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X28HC64 SYSTEM CONSIDERATIONS Because the X28HC64 is frequently used in large memory arrays provided with a two line control architecture for both read and write operations. Proper usage can provide the lowest possible power dissipation and elimi- nate ...
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X28HC64 ABSOLUTE MAXIMUM RATINGS* Temperature under Bias X28HC64 ..................................... – +85 C X28HC64I, X28HC64M ............. – +135 C Storage Temperature ....................... – +150 C Voltage on any Pin with Respect ....................................... ...
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X28HC64 ENDURANCE AND DATA RETENTION Parameter Minimum Endurance Data Retention POWER-UP TIMING Symbol PUR (3) t Power-up to Read Operation (3) t Power-up to Write Operation PUW CAPACITANCE 1MHz Symbol (3) C ...
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X28HC64 A.C. CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.) Read Cycle Limits Symbol Parameter t Read Cycle Time RC t Chip Enable Access Time CE t Address Access Time AA t Output Enable Access Time OE CE LOW ...
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X28HC64 WRITE CYCLE LIMITS Symbol Parameter (5) t Write Cycle Time WC t Address Setup Time AS t Address Hold Time AH t Write Setup Time CS t Write Hold Time CH CE Pulse Width HIGH Setup ...
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X28HC64 CE Controlled Write Cycle ADDRESS OES DATA IN DATA OUT Page Write Cycle ( (8) ADDRESS * I/O BYTE 0 *For each successive write within the ...
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X28HC64 DATA Polling Timing Diagram (9) ADDRESS I/O 7 Toggle Bit Timing Diagram ( OEH OE HIGH Z I I/O 6 beginning and ending state will vary, ...
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X28HC64 PACKAGING INFORMATION 28-LEAD PLASTIC DUAL IN-LINE PACKAGE TYPE P PIN 1 INDEX PIN 1 SEATING PLANE 0.150 (3.81) 0.125 (3.17) 0.110 (2.79) 0.090 (2.29) TYP. 0.010 (0.25) NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) 1.460 (37.08) 1.400 ...
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X28HC64 PACKAGING INFORMATION 28-LEAD HERMETIC DUAL IN-LINE PACKAGE TYPE D PIN 1 SEATING PLANE 0.200 (5.08) 0.125 (3.18) 0.110 (2.79) 0.090 (2.29) TYP. 0.100 (2.54) TYP. 0.010 (0.25) NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) 1.490 (37.85) 1.435 ...
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X28HC64 PACKAGING INFORMATION 32-LEAD PLASTIC LEADED CHIP CARRIER PACKAGE TYPE J 0.420 (10.67) 0.045 (1.14 0.495 (12.57) 0.485 (12.32) TYP. 0.490 (12.45) 0.453 (11.51) 0.447 (11.35) TYP. 0.450 (11.43) 0.300 (7.62) REF. PIN 1 0.050 (1.27) TYP. 0.021 ...
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X28HC64 PACKAGING INFORMATION 28-LEAD PLASTIC SMALL OUTLINE GULL WING PACKAGE TYPE S 0.1040 (2.6416) 0.0940 (2.3876) 0 – 8 NOTES: 1. ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) 2. FORMED LEAD SHALL BE PLANAR WITH RESPECT TO ONE ANOTHER ...
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X28HC64 PACKAGING INFORMATION 32-PAD CERAMIC LEADLESS CHIP CARRIER PACKAGE TYPE E PIN 1 0.200 (5.08) BSC 0.028 (0.71) 0.022 (0.56) (32) PLCS. 0.458 (11.63) 0.442 (11.22) 0.458 (11.63) 0.300 (7.62) NOTE: 1. ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) ...
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X28HC64 PACKAGING INFORMATION 28-LEAD CERAMIC PIN GRID ARRAY PACKAGE TYPE K TYP. 0.100 ALL LEADS 0.660 (16.76) 0.640 (16.26) NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS ...
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X28HC64 PACKAGING INFORMATION 0.740 (18.80) MAX. 0.006 (0.15) 0.003 (0.08) TYP. 0.300 2 PLCS. NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) 28-LEAD CERAMIC FLAT PACK PIN 1 INDEX 1 0.440 (11.18) MAX. 0.370 (9.40) 0.250 (6.35) 0.180 (4.57) ...
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X28HC64 PACKAGING INFORMATION SEE NOTE 2 8.02 (0.315) 7.98 (0.314) 1.18 (0.046) 1.02 (0.040) 0.58 (0.023) 0.42 (0.017) SOLDER PADS FOOTPRINT NOTE: 1. ALL DIMENSIONS ARE SHOWN IN MILLIMETERS (INCHES IN PARENTHESES). 32-LEAD THIN SMALL OUTLINE PACKAGE (TSOP) TYPE T ...
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... Device LIMITED WARRANTY Devices sold by Xicor, Inc. are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only. Xicor, Inc. makes no warranty, express, statutory, implied description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. Xicor, Inc. makes no warranty of merchantability or fitness tor any purpose. Xicor, Inc. reserves the right to discontinue production and change specifications and prices at any time and without notice ...