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37LV128/P Datasheet(PDF) 8 Page - Microchip Technology

Part # 37LV128/P
Description  36K, 64K, and 128K Serial EPROM Family
PDF  14 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

37LV128/P Datasheet(HTML) 8 Page - Microchip Technology

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37LV36/65/128
DS21109F-page 8
 2004 Microchip Technology Inc.
FIGURE 11-3: ENTER AND EXIT PROGRAMMING MODES
FIGURE 11-4: PROGRAMMING CYCLE OVERVIEW (NO VERIFY UNTIL ENTIRE ARRAY IS
PROGRAMMED)
FIGURE 11-5: DETAILS OF PROGRAM CYCLE
VCC
VPP
VPP2
VPP1
VCCP
TRPP
TFPP
TSVC
THVC
TSVC
TSVCE
TSVOE
CLK
DATA
CE
RESET/OE
Enter Mode
Exit Mode
** 32 Clocks
*Note: The CEO pin is high impedance when VPP = VPP1
High if RESET/OE configured
Low if RESET/OE configured
2 CLKS
**Load
Word 1
**Load
Word 2
**Load
Word 3
**Load
Word 4
**Load
Word 5
CE low to clear
data latches
Clock Increments
Address Counter
Enter
Programming
Mode
500
µs
Programming
Mode
500
µs
Programming
Mode
500
µs
Programming
Mode
500
µs
Programming
Mode
VPP = VPP2
VCC = VCCP
VPP1
VCC
VPP
CLK
CE
RESET/OE
CEO
*
*
**
*



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