Datasheet M27C516 Datasheet (SGS Thomson Microelectronics)

5V ± 10% SUPPLYVOLTAGEin READ
OPERATION

FASTACCESSTIME: 35ns
LOW POWERCONSUMPTION:
– ActiveCurrent 30mAat 5MHz
– Stand-byCurrent 100µA
PROGRAMMINGVOLTAGE:12.75V±0.25V
PROGRAMMINGTIME: 100µs/word (typical)
ELECTRONICSIGNATURE
– ManufacturerCode:0020h
– DeviceCode: 000Fh

DESCRIPTION

TheM27C516 is a 512Kbit EPROM offeredin the
OTP range (one time programmable). It is ideally
suited for microprocessorsystems requiring large
data or program storage and is organized as
32,768 words of 16 bits.

TheM27C516isofferedin aPLCC44andTSOP40
(10 x 14mm)packages.

M27C516

512 Kbit (32Kb x16) OTP EPROM

PLCC44 (C) TSOP40 (N)

Figure1. LogicDiagram

V

CC

15

A0-A14

V

PP

10 x 14mm

16

Q0-Q15

P

Table1. SignalNames

A0-A14 Address Inputs
Q0-Q15 Data Outputs
E Chip Enable
G Output Enable
P Program Enable
V

CC

V

PP

V

SS

September 1998 1/12

Supply Voltage
Program Supply
Ground

E

G

M27C516

V

SS

AI00932

M27C516

Figure2A. LCC Pin Connections

Q13

Q14

Q15

CC

NC

VPPE

V

1

44

Q12
Q11
Q10

Q9 A10
Q8

V

SS

12

M27C516

NC

Q6
Q5
Q4

23

G

Q3

Q2

Q1

Q0

NC

A0

P

A1

NC

A2

NC

A3

A14

34

A4

A13
A12
A11

A9
V

SS

NC
A8Q7
A7
A6
A5

AI00934

Figure2B. TSOPPin Connections

A9
A10
A11
A12 A6
A13 A5
A14

NC
NC

V

CC

V

PP

DQ15
DQ14
DQ13
DQ12 DQ4
DQ11 DQ5
DQ10

DQ9
DQ8

1

P

M27C516

10

(Normal)

11

E

20 21

40

31
30

AI01600

V

SS

A8
A7

A4
A3
A2
A1
A0
G
DQ0
DQ1
DQ2
DQ3

DQ6
DQ7
V

SS

Warning: NC = Not Connected.

Table2. AbsoluteMaximum Ratings

(1)

Warning: NC = Not Connected.

Symbol Parameter Value Unit

T

A

T

BIAS

T

STG

(2)

V

IO

V

CC

(2)

V

A9

V

PP

Notes:

1. Except for therating ”Operating Temperature Range”, stresses above those listedin the Table ”AbsoluteMaximum Ratings”
may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other
conditions above those indicated in the Operatingsections of this specification is not implied.Exposure to Absolute Maximum
Rating conditions for extendedperiods may affectdevice reliability.Refer also to the STMicroelectronicsSURE Program and other
relevant quality documents.

2. Minimum DC voltage on Input or Output is –0.5V with possible undershoot to –2.0V for a period less than 20ns. Maximum DC
voltage on Output is V

3. Depends on range.

Ambient OperatingTemperature
TemperatureUnder Bias –50 to 125 °C
Storage Temperature –65 to 150
Input or Output Voltages (except A9) –2 to 7 V
Supply Voltage –2 to 7 V
A9 Voltage –2 to 13.5 V
Program SupplyVoltage –2 to 14 V

+0.5Vwith possible overshoot to VCC+2V for a period less than20ns.

CC

(3)

–40 to 125

C

°

C

°

2/12

Table3. OperatingModes

M27C516

Mode E G P A9 V

Read V
Output Disable V
Program V
Verify V
Program Inhibit V
Standby V
Electronic Signature V

Notes

or VIL,VID=12V±0.5V

:X=V

IH

IL

IL

IL

IL

IH

IH

IL

V

IL

V

IH

XV

V

IL

XXXVPPHi-Z
XXXVCCHi-Z

V

IL

V

IH

XXVCCHi-Z

Pulse X V

IL

V

IH

V

IH

XVCCData Out

XVPPData Out

V

ID

PP

PP

V

CC

Table4. ElectronicSignature

Identifier A0 Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0 Hex Data

Manufacturer’s Code V
Device Code V

Note: OutputsQ8-Q15 are set to ’0’.

IL

IH

DEVICEOPERATION

Theoperating modesof theM27C516are listed in
the Operating Modes table.A single power supply
is required in the read mode. All inputs are TTL
levels except for G and 12V on A9 for Electronic
Signature.

ReadMode

The M27C516 has two control functions, both of
which must be logically active in order to obtain
data at the outputs.Chip Enable (E) is the power
control and should be used for device selection.
OutputEnable(G) isthe outputcontrol and should
be used to gate data to the output pins, inde­pendent of device selection. Assuming that the
addresses are stable, the address access time

)isequaltothedelayfromE tooutput(t

(t

AVQV

Datais availableatthe outputaftera delayof t
from the falling edge of G, assuming that E has
been low and the addresses have been stablefor
at least t

AVQV-tGLQV

.

StandbyMode

TheM27C516has a standby mode which reduces

00100000 20h
00001111 0Fh

M27C516is placed in the standbymode by apply­inga CMOShigh signalto theE input.When in the
standbymode, theoutputsareina highimpedance
state,independentof theG input.

Two Line Output Control

BecauseOTP EPROMsare usually used in larger
memoryarrays,theproductfeaturesa 2linecontrol
functionwhich accommodatesthe use of multiple
memory connection. The two line control function
allows:

a. thelowestpossiblememorypowerdissipation,
b. completeassurance that output bus contention

will not occur.

Forthemostefficientuse ofthesetwo controllines,

ELQV

GLQV

deviceselectingfunction, whileG shouldbe made
a common connection to all devices in the array

E should be decoded and used as the primary

).

and connected to the READ line from the system
controlbus. This ensuresthat all deselectedmem­ory devices are in their low power standby mode
and that the output pins areonly activewhen data
is requiredfrom a particular memory device.

the supply current from 30mA to 100µA. The

Q0 - Q15

Data In

Codes

3/12

M27C516

Table5. AC MeasurementConditions

High Speed Standard

Input Rise and Fall Times ≤ 10ns ≤ 20ns (10% to 90%)
Input Pulse Voltages 0 to 3V 0.4V to 2.4V
Input and Output Timing Ref. Voltages 1.5V 0.8V and 2V

Figure3. ACTestingInput Output Waveform

High Speed

3V

1.5V

0V

Standard

2.4V

0.4V

Table 6. Capacitance

Symbol Parameter Test Condition Min Max Unit

C

IN

C

OUT

Notes. 1. VCCmust be applied simultaneously with or before VPPandremoved simultaneouslywith or after VPP.

2. This parameter is sampled only and not tested 100%.

Input Capacitance VIN=0V 6 pF
Output Capacitance V

=25°C, f =1 MHz)

(T

A

2.0V

0.8V

AI01822

Figure 4. AC TestingLoad Circuit

1.3V

1N914

3.3kΩ

DEVICE
UNDER

TEST

CL= 30pF or 60pF or 100pF

CLincludes JIG capacitance

=0V 12 pF

OUT

OUT

AI02024B

SystemConsiderations

The power switching characteristics of Advanced
CMOS EPROMsrequire careful decouplingof the
devices. The supply current, I

, has three seg-

CC

ments that are of interest to the system designer:
the standby current level, the active current level,
and transientcurrent peaks that are produced by
the falling and risingedges ofE. Themagnitudeof
the transient current peaks is dependent on the
capacitiveandinductiveloadingof thedeviceatthe
output.Theassociatedtransientvoltagepeakscan
be suppressed by complying with the two line

4/12

outputcontroland by properlyselecteddecoupling
capacitors.It is recommendedthat a 1µF ceramic
capacitor be used on every device between V

CC

andVSS. Thisshouldbe a highfrequencycapacitor
of low inherent inductanceand should be placed
as close to the device as possible. In addition, a

4.7µF bulk electrolytic capacitor should be used
betweenV

andVSSforevery eight devices.The

CC

bulk capacitor should be located near the power
supplyconnection point.The purpose of the bulk
capacitor is to overcomethe voltage drop caused
by the inductiveeffectsof PCBtraces.

M27C516

Table7. Read Mode DC Characteristics

(1)

(TA=0 to 70 °C or –40 to 85 °C; VCC=5V±5% or 5V± 10%;VPP=VCC)

Symbol Parameter Test Condition Min Max Unit

I

LI

I

LO

I

CC

I

CC1

I

CC2

I

PP

V

V

IH

V

OL

V

OH

Notes: 1. VCCmust be applied simultaneously with or before VPPand removed simultaneously or after VPP.

Input Leakage Current 0V≤V
Output Leakage Current 0V ≤ V
Supply Current E = VIL,G=VIL, f= 5MHz 30 mA
Supply Current (Standby)TTL E = V
Supply Current (Standby) CMOS E > VCC– 0.3V 100
Program Current VPP=V
Input Low Voltage –0.3 0.8 V

IL

(2)

Input High Voltage 2 VCC+1 V
Output Low Voltage IOL= 2.1mA 0.4 V
Output High Voltage TTL IOH= –400µA 2.4 V
Output High Voltage CMOS I

2. Maximum DC Voltage on Output is V

CC

+0.5V.

OH

V

≤

IN

CC

≤ V

OUT

CC

IH

CC

= –100µAV

CC

–0.7V V

1

±
±5 µA

1mA

10 µA

A

µ

A

µ

Table8A. Read Mode AC Characteristics

(1)

(TA=0 to 70 °C or –40 to 85 °C; VCC=5V±5% or 5V± 10%;VPP=VCC)

Symbol Alt Parameter Test Condition

t

AVQVtACC

t

ELQV

t

GLQV

(2)

t

EHQZ

(2)

t

GHQZ

t

AXQX

Notes:

1. V

CC

2. Sampled only, not 100% tested.

3. Speed obtainedwith High Speedmeasurement conditions and a load capacitance of 30pF.

4. Speed obtainedwith a load capacitance of60pF.

Address Validto Output
Valid

Chip Enable Low to

t

CE

Output Valid
Output EnableLow to

t

OE

Output Valid
Chip Enable High to

t

DF

Output Hi-Z
Output EnableHigh to

t

DF

Output Hi-Z
Address Transitionto

t

OH

Output Transition

must be applied simultaneously with or before VPPand removed simultaneously with or after V

E=V

G=V

E=V

G=V

E=V

E=V

,G=V

IL

IL

IL

IL

IL

,G=V

IL

IL

IL

(3)

-35

Min Max Min Max Min Max

35 45 55 ns

35 45 55 ns

18 23 25 ns

018018020ns

018018020ns

000ns

M27C516

(3)

-45

(4)

-55

PP.

Unit

5/12

M27C516

Table8B. Read Mode AC Characteristics

(1)

(TA=0 to 70 °C or –40 to 85 °C; VCC=5V±5% or 5V± 10%;VPP=VCC)

M27C516

Symbol Alt Parameter TestCondition

-70

(3)

Min Max Min Max

t

t

AVQV

t

ELQV

t

GLQV

(2)

t

EHQZ

(2)

t

GHQZ

t

AXQX

Notes: 1. VCCmust be applied simultaneously with or before VPPand removed simultaneously with or after V

2. Sampled only, not 100% tested.

3. Speed obtainedwith a load capacitance of60pF

Address Valid to Output Valid E = VIL,G=V

ACC

t

Chip Enable Low to OutputValid G = V

CE

t

Output Enable Low to Output Valid E = V

OE

t

Chip Enable High to Output Hi-Z G = V

DF

t

Output Enable High to Output Hi-Z E = V

DF

Address Transition to

t

OH

Output Transition

E=V

,G=V

IL

IL

IL

IL

IL

IL

0 20 0 30 ns
0 20 0 30 ns

00ns

IL

70 85 ns
70 85 ns
35 35 ns

Figure5. ReadMode AC Waveforms

-85/-10

PP.

Unit

A0-A14

E

G

Q0-Q15

VALID

tAVQV

tGLQV

tELQV

Programming

Whendelivered,all bitsof theM27C516 are inthe
’1’state.Data isintroducedbyselectivelyprogram­ming ’0’s into the desired bit locations. Although
only’0’s willbe programmed,both ’1’s and’0’s can
bepresentinthedata word.TheM27C516isin the

VALID

tAXQX

tEHQZ

tGHQZ

Hi-Z

AI00935B

programmingmode whenVPPinputis at 12.75V,E
is at V

and P is pulsed to VIL. The data to be

IL

programmedis appliedto 16 bits in parallel to the
data output pins. The evels required for the ad­dressand data inputs are TTL.V

is specifiedto

CC

be 6.25V ±0.25V.

6/12

M27C516

Table 9. ProgrammingMode DC Characteristics

(1)

(TA=25°C; VCC= 6.25V± 0.25V;VPP= 12.75V± 0.25V)

Symbol Parameter Test Condition Min Max Unit

I

LI

I

CC

I

PP

V

IL

V

IH

V

OL

V

OH

V

ID

Note: 1. VCCmust be applied simultaneously with or before VPPand removed simultaneously or after VPP.

Table10. ProgrammingMode AC Characteristics

Input Leakage Current VIL≤ VIN≤ V

IH

Supply Current 50 mA
Program Current E = V

IL

Input Low Voltage –0.3 0.8 V
Input High Voltage 2 VCC+ 0.5 V
Output Low Voltage IOL= 2.1mA 0.4 V
Output High Voltage TTL IOH= –400µA 2.4 V
A9 Voltage 11.5 12.5 V

(1)

±10 µA

50 mA

(TA=25°C; VCC=6.25V ± 0.25V;VPP=12.75V ± 0.25V)

Symbol Alt Parameter Test Condition Min Max Unit

t

AVPL

t

QVPL

t

VPHPL

t

VCHPL

t

ELPL

t

PLPH

t

PHQX

t

QXGL

t
t

t

VPS

t

VCS

t

CES

t

PW

t

t

OES

Address Validto Program Low 2

AS

Input Valid to Program Low 2 µs

DS

VPPHigh to Program Low 2
VCCHigh to Program Low 2 µs
Chip Enable Low to

Program Low

2 µs

Program Pulse Width 95 105 µs
Program High to Input

DH

Transition
Input Transitionto Output

Enable Low

2

2 µs

s

µ

s

µ

s

µ

t

GLQV

t

GHQZ

t

GHAX

Notes:

1. V

2. Sampled only and not 100% tested.

t

(2)

t

DFP

t

must be applied simultaneously with or before VPPand removed simultaneously or after VPP.

CC

Output Enable Low to

OE

Output Valid
Output Enable High to

Output Enable High to

AH

Address Transition

Output Hi-Z

100 ns

0 130 ns

0 µs

7/12

M27C516

Figure 6. Programmingand Verify Modes AC Waveforms

A0-A14

tAVPL

Q0-Q15

tQVPL

V

PP

tVPHPL

V

CC

tVCHPL

E

tELPL

P

tPLPH

G

Figure 7. ProgrammingFlowchart

VCC= 6.25V, VPP= 12.75V

n=0

P = 100µs Pulse

NO

NO

VERIFY

YES

Last

NO

Addr

YES

CHECK ALL WORDS

1st: VCC=6V

2nd: VCC= 4.2V

++ Addr

YES

++n

=25

FAIL

VALID

DATA IN DATA OUT

tPHQX

tGLQV

tQXGL

PROGRAM VERIFY

PRESTOII ProgrammingAlgorithm

PRESTOII ProgrammingAlgorithm allows to pro­gramthe whole array with a guaranteedmargin,in
a typical time of 3 seconds. Programming with
PRESTOII involves the applicationof a sequence
of100µsprogrampulsestoeachbyteuntilacorrect
verify occurs (seeFigure 7). During programming
and verify operation, a MARGIN MODE circuit is
automatically activated in order to guarantee that
each cell is programmedwith enough margin. No
overprogram pulse is applied since the verify in
MARGIN MODE provides necessary margin to
each programmedcell.

ProgramInhibit

Programmingof multipleM27C516sin parallelwith
differentdata is also easilyaccomplished. Except
for E, all like inputs including G of the parallel
M27C516may be common.A TTL low levelpulse
appliedto aM27C516’sP input,withE low andV
at 12.75V,will program that M27C516.Ahigh level
E input inhibits the other M27C516s from being
programmed.

ProgramVerify

AI00707C

A verify (read) should be performed on the pro­grammedbits todeterminethat theywerecorrectly
programmed. The verify is accomplished with E
and G at V

, P at VIH,VPPat 12.75V and VCCat

IL

6.25V.

tGHQZ

tGHAX

AI00936

PP

8/12

M27C516

On-BoardProgramming

The M27C516 can be directly programmed in the
application circuit. See the relevant Application
NoteAN620.

ElectronicSignature

The Electronic Signature (ES) mode allows the
reading out of a binarycode froman EPROMthat
will identifyits manufacturerand type. This mode
is intended for use by programmingequipment to
automaticallymatchthe deviceto be programmed
withits correspondingprogrammingalgorithm.The
ES mode is functionalin the 25°C±5°C ambient
temperaturerange that is requiredwhenprogram-

ORDERING INFORMATION SCHEME

Example: M27C516 -70 X N 1 TR

ming the M27C516. Toactivate the ES mode, the
programmingequipmentmustforce11.5Vto 12.5V
on addressline A9 ofthe M27C516.

Two identifier bytes may then be sequencedfrom
thedeviceoutputsby togglingaddressline A0from
V

to VIH. All other addresslines must be held at

IL

during Electronic Signature mode. Byte 0

V

IL

(A0=V
byte 1 (A0=V

) represents the manufacturer code and

IL

) the deviceidentifier code. For the

IH

STMicroelectronicsM27C516, thesetwo identifier
bytes are givenin Table4 andcan be read-outon
outputsQ0 toQ7.

Speed

(1)

-35

-45

-55

-70

-85 85 ns

-10 100 ns

Notes:

35 ns

(1)

45 ns

(2)

55 ns

(2)

70 ns

1. High Speed, see AC Characteristics section for furtherinformation.

2. Speed obtainedwith a load capacitance of60pF.

V

Tolerance

CC

blank ±10%

X ±5%

Package

C PLCC44
N TSOP40

10 x 14mm

Temperature Range

1 0 to 70 °C
6 –40 to 85 °C

Option

TR Tape& Reel

Packing

Fora listof availableoptions (Speed,Package,etc...)orforfurtherinformationon anyaspect ofthis device,
pleasecontact the STMicroelectronicsSales Office nearest to you.

9/12

M27C516

PLCC44 - 44 lead PlasticLeaded Chip Carrier, square

Symb

Typ Min Max Typ Min Max

A 4.20 4.70 0.165 0.185
A1 2.29 3.04 0.090 0.120
A2 – 0.51 – 0.020

B 0.33 0.53 0.013 0.021
B1 0.66 0.81 0.026 0.032

D 17.40 17.65 0.685 0.695
D1 16.51 16.66 0.650 0.656
D2 14.99 16.00 0.590 0.630

E 17.40 17.65 0.685 0.695
E1 16.51 16.66 0.650 0.656
E2 14.99 16.00 0.590 0.630

e 1.27 – – 0.050 – –

F 0.00 0.25 0.000 0.010
R 0.89 – – 0.035 – –
N44 44

CP 0.10 0.004

mm inches

D

D1

1N

Ne E1 E

Nd

PLCC

Drawing is not to scale

10/12

R

F

0.51 (.020)

1.14 (.045)

D2/E2

A1

A2

B1

e

B

A

CP

TSOP40- 40 lead PlasticThin Small Outline, 10 x 14mm

M27C516

Symb

Typ Min Max Typ Min Max

A 1.20 0.047

A1 0.05 0.15 0.002 0.006
A2 0.95 1.05 0.037 0.041

B 0.17 0.27 0.007 0.011
C 0.10 0.21 0.004 0.008
D 13.80 14.20 0.543 0.559

D1 12.30 12.50 0.484 0.492

E 9.90 10.10 0.390 0.398

e 0.50 – – 0.020 – –

L 0.50 0.70 0.020 0.028

α

N40 40

CP 0.10 0.004

mm inches

0

°

5

°

0

°

5

°

Drawing is not to scale

1N

E

N/2

D1

D

DIE

TSOP-a

A2

e

B

A

CP

C

LA1 α

11/12

M27C516

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumesno responsibility for the consequences
ofuse ofsuch information nor for any infringementof patentsor otherrights of thirdparties whichmay result from its use. No license is granted
by implicationor otherwiseunder any patent or patent rights of STMicroelectronics. Specificationsmentioned in this publicationare subjectto
change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as criticalcomponents in life support devices or systemswithout express written approval of STMicroelectronics.

The ST logo is a registered trademark of STMicroelectronics

 1998 STMicroelectronics - AllRights Reserved

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12/12