37LV65-TL View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

37LV65-TL

36K/ 64K/ and 128K Serial EPROM Family

Microchip Technology 

37LV36/65/128

FIGURE 11-3: ENTER AND EXIT PROGRAMMING MODES

Enter Mode

Exit Mode

VCC

VPP

VPP2

CLK

VCCP

VPP1

TRPP

TSVC

TFPP

THVC

TSVC

DATA

CE

RESET/OE

TSVCE

TSVOE

FIGURE 11-4: PROGRAMMING CYCLE OVERVIEW (NO VERIFY UNTIL ENTIRE ARRAY IS

PROGRAMMED)

VCC

VPP

CLK

CE

VCC = VCCP

VPP1

VPP = VPP2

Enter

500 µs

Programming Programming

Mode

Mode

500 µs

Programming

Mode

500 µs

Programming

Mode

500 µs

Programming

Mode

2 CLKS

**Load

Word 1

CE low to clear

data latches

**Load

Word 2

**Load

Word 3

**Load

Word 4

**Load

Word 5

Clock Increments

Address Counter

RESET/OE

CEO

High if RESET/OE configured

*

*

*

*

*

** 32 Clocks

Low if RESET/OE configured

*Note: The CEO pin is high impedance when VPP = VPP1

FIGURE 11-5: DETAILS OF PROGRAM CYCLE

DS21109F-page 8

 2004 Microchip Technology Inc.

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