M27C516-55XC6TR datasheet(8/12 Pages) STMICROELECTRONICS

부품명	M27C516-55XC6TR

상세설명	512 Kbit (32Kb x16) OTP EPROM

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8 / 12 page

tAVPL

VALID

AI00936

A0-A14

Q0-Q15

VPP

VCC

P

G

DATA IN

DATA OUT

E

tQVPL

tVPHPL

tVCHPL

tPHQX

tPLPH

tGLQV

tQXGL

tELPL

tGHQZ

tGHAX

PROGRAM

VERIFY

Figure 6. Programming and Verify Modes AC Waveforms

AI00707C

n= 0

Last

Addr

VERIFY

P = 100

µs Pulse

++n

=25

++ Addr

VCC = 6.25V, VPP = 12.75V

FAIL

CHECK ALL WORDS

1st: VCC =6V

2nd: VCC = 4.2V

YES

NO

YES

NO

YES

NO

Figure 7. Programming Flowchart

PRESTO II Programming Algorithm

PRESTO II Programming Algorithm allows to pro-

gram the whole array with a guaranteedmargin, in

a typical time of 3 seconds. Programming with

PRESTO II involves the application of a sequence

of 100

µs programpulses to each byteuntil a correct

verify occurs (see Figure 7). During programming

and verify operation, a MARGIN MODE circuit is

automatically activated in order to guarantee that

each cell is programmed with enough margin. No

overprogram pulse is applied since the verify in

MARGIN MODE provides necessary margin to

each programmed cell.

Program Inhibit

Programming of multiple M27C516s in parallelwith

different data is also easily accomplished. Except

for E, all like inputs including G of the parallel

M27C516 may be common. A TTL low level pulse

applied to a M27C516’s P input, with E low and VPP

at 12.75V,will program that M27C516. A high level

E input inhibits the other M27C516s from being

programmed.

Program Verify

A verify (read) should be performed on the pro-

grammed bits to determine that they were correctly

programmed. The verify is accomplished with E

and G at VIL, P at VIH,VPP at 12.75V and VCC at

6.25V.

8/12

M27C516

유사한 부품 번호 - M27C516-55XC6TR

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M27C516-55XC6TR 데이터시트(PDF) 8 Page - STMicroelectronics

M27C516-55XC6TR 데이터시트(HTML) 8 Page - STMicroelectronics

유사한 부품 번호 - M27C516-55XC6TR

유사한 설명 - M27C516-55XC6TR

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