Z86E09 Datasheet, PDF(34/38 Page) Zilog, Inc. – Z8 CMOS OTP Microcontrollers

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Z86E09 Datasheet, PDF (34/38 Pages) Zilog, Inc. – Z8 CMOS OTP Microcontrollers

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Z86E02/E04/E08/E09 SL1995

Z8 CMOS OTP Microcontrollers

Figure 19. OPTION BIT PROGRAM, VERIFY, and READ Algorithm

Start

Power-On Reset

VCC= 5.0V

Send Unlock

Sequence and

Mode B Select

N=0

Program

1 ms Pulse*

Increment N

N = 25?

Yes

Fail

Verify

One Byte

Pass

Program One Pulse

3xN ms Duration

Fail

Verify Byte

Pass

Device Passed

Device Failed

Note: *It is assumed that the user has already selected the option bits prior to this step.

PS009201-0301

Programming Specification

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