X25642S Xicor, X25642S Datasheet
X25642S
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X25642S Summary of contents
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... X25642 disabling all write attempts to the status register, thus providing a mech- anism for limiting end user capability of altering 0, 1/4, 1/2 or all of the memory. The X25642 utilizes Xicor’s proprietary Direct Write cell, providing a minimum endurance of 100,000 cycles and a minimum data retention of 100 years. WRITE ...
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X25642 PIN DESCRIPTIONS Serial Output (SO push/pull serial data output pin. During a read cycle, data is shifted out on this pin. Data is clocked out by the falling edge of the serial clock. Serial Input (SI) ...
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X25642 the serial communication with the controller without resetting the serial sequence. To pause, HOLD must be brought LOW while SCK is LOW. To resume communication, HOLD is brought HIGH, again while SCK is LOW. If the pause feature is ...
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X25642 Write-Protect Enable The Write-Protect-Enable (WPEN) is available for the X25642 as a nonvolatile enable bit for the WP pin. Protected Unprotected WPEN WP WEL Blocks Protected Protected Protected 1 LOW 0 Protected Protected ...
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X25642 Operational Notes The X25642 powers-up in the following state: • The device is in the low power standby state. • A HIGH to LOW transition required to enter an active state and receive an instruction. • ...
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X25642 Figure 3. Write Enable Latch Sequence CS SCK SI SO Figure 4. Byte Write Operation Sequence SCK INSTRUCTION SI HIGH IMPEDANCE HIGH IMPEDANCE 4 5 ...
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X25642 Figure 5. Page Write Operation Sequence SCK INSTRUCTION SCK DATA BYTE Figure 6. Write Status Register Operation ...
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X25642 ABSOLUTE MAXIMUM RATINGS* Temperature under Bias....................– +135 C Storage Temperature ........................– +150 C Voltage on any Pin with Respect to V .........................................................–1V to +7V SS D.C. Output Current ............................................. 5mA (Soldering, 10 seconds) ..............................300 C ...
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X25642 EQUIVALENT A.C. LOAD CIRCUIT 5V 1.44K OUTPUT OUTPUT 1.95K 100pF A.C. OPERATING CHARACTERISTICS Data Input Timing Symbol f Clock Frequency SCK t Cycle Time CYC t CS Lead Time LEAD t CS Lag Time LAG t Clock HIGH Time ...
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X25642 Serial Output Timing CS SCK MSB OUT ADDR SI LSB IN Serial Input Timing CS t LEAD SCK MSB IN HIGH IMPEDANCE CYC MSB–1 OUT t t ...
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X25642 Hold Timing CS SCK SO SI HOLD 3132 ILL F12.1 11 ...
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X25642 PACKAGING INFORMATION HALF SHOULDER WIDTH ON ALL END PINS OPTIONAL 0.015 (0.38) TYP. 0.010 (0.25) NOTE: 1. ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) 2. PACKAGE DIMENSIONS EXCLUDE MOLDING FLASH 8-LEAD PLASTIC DUAL IN-LINE PACKAGE TYPE P 0.430 ...
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X25642 PACKAGING INFORMATION 8-LEAD PLASTIC SMALL OUTLINE GULL WING PACKAGE TYPE S PIN 1 INDEX 0.010 (0.25) 0.020 (0.50) 0 – 8 0.016 (0.410) 0.037 (0.937) NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) 0.150 (3.80) 0.158 (4.00) PIN ...
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X25642 PACKAGING INFORMATION 14-LEAD PLASTIC SMALL OUTLINE GULL WING PACKAGE TYPE S PIN 1 INDEX PIN 1 0.014 (0.35) 0.020 (0.51) (4X) 7 0.050 (1.27) 0.010 (0.25) 0.020 (0.50) 0 – 8 0.016 (0.41) 0.037 (0.937) NOTE: ALL DIMENSIONS IN ...
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X25642 PACKAGING INFORMATION 20-LEAD PLASTIC, TSSOP PACKAGE TYPE V 0 – 8 See Detail “A” NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) .025 (.65) BSC .169 (4.3) .252 (6.4) BSC .177 (4.5) .252 (6.4) .300 (6.6) .047 (1.20) ...
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... Xicor, Inc. makes no warranty of merchantability or fitness for any purpose. Xicor, Inc. reserves the right to discontinue production and change specifications and prices at any time and without notice. Xicor, Inc. assumes no responsibility for the use of any circuitry other than circuitry embodied in a Xicor, Inc. product. No other circuits, patents, licenses are implied. ...