SGS Thomson Microelectronics M27W016 Datasheet

16 Mbit (1Mb x16) 3V Supply FlexibleROM™ Memory

FEATURES SUMMARY

■ ONE TIME PROGRAMMABLE

■ SUPPLY VOLTAGE

–V
–V

■ ACCESS TIME

– 90ns at V
– 10 0, 110ns at V

■ PROGRAMMING TIME

– 9µs per Word typical
– Multiple Word Programm ing Option

■ SUITABLE FOR ON-BOARD PROGRAMMING

■ PROGRAM CONTROLLER

– Embedded Word Program algorithms

■ ELECTRONIC SIGNATURE

– Manufacturer Code: 0020h
– Device Code : 888Dh

2.7 to 3.6V for Read

CC =

11.4 to 12.6V for Program

PP =

3.0 to 3.6V

CC =

2.7 to 3.6V

CC =

(2s typical Chip Program)

Figure 1. Packages

SO44 (M)

42

1

M27W016

TSOP48 (N)

12 x 20mm

PDIP42 (B)

42

1

SDIP42 (S)

1/26March 2003

M27W016

TABLE OF CONTENTS

FEATURES SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 1. Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2. Logic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Table 1. Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Figure 3. PDIP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 4. SDIP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 5. SO Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 6. TSOP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

SIGNAL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Address Inputs (A0-A19). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Data Inputs/Outputs (DQ0-DQ7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Data Inputs/Outputs (DQ8-DQ15 ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Chip Enable (E). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Output Enable (G). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

V

Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

CC

Program Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

V

PP

Vss Ground.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

BUS OPERATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Bus Read. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Bus Write. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Output Disable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Standby. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Automatic Standby. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Electronic Signature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Table 2. Bus Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

COMMAND INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Read/Reset Command.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Auto Select Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Word Program Command.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Multiple Word Program Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Setup Phase.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Program Phase. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Verify Phase. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0

Exit Phase. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 3. Standard Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1

Table 4. Multiple Word Program Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 5. Program Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 7. Multiple Word Program Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2/26

M27W016

STATUS REGISTER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Data Polling Bit (DQ7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Toggle Bit (DQ6).. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Error Bit (DQ5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

V

Status Bit (DQ4). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

PP

Multiple Word Program Bit (DQ0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Multiple Word Program Bit (DQ0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Table 6. Status Register Bits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 8. Data Polling Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4

Figure 9. Data Toggle Flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4

MAXIMUM RATING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 7. Absolute Maximum Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

DC and AC PARAMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6

Table 8. Operating and AC Measurement Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 10. AC Measurement I/O Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 11. AC Measurement Load Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 9. Device Capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 10. DC Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 12. Read AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Table 11. Read AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 13. Chip Enable Controlled, Write AC Waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Table 12. Chip Enable Controlled, Write AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

PACKAGE MECHANICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

SO44 - 44 lead Plastic Small Outline, 500 mils body width, Package Outline . . . . . . . . . . . . . . . . 20

SO44 - 44 lead Plastic Small Outline, 500 mils body width, Package Mechanical Data . . . . . . . . . 20

TSOP48 - 48 lead Plastic Thin Small Outline, 12 x 20mm, Package Outlin e . . . . . . . . . . . . . . . . . 21

TSOP48 - 48 lead Plastic Thin Small Outline, 12 x 20mm, Package Me chanical Data . . . . . . . . . 21

PDIP42 - 42 pin Plastic DIP, 600 mils width, Bottom View Package Outline . . . . . . . . . . . . . . . . . 22

PDIP42 - 42 pin Plastic DIP, 600 mils width, Package Mechanical Data . . . . . . . . . . . . . . . . . . . . 22

SDIP42 - 42 pin Shrink Plastic DIP, 600 mils width, Package Outline . . . . . . . . . . . . . . . . . . . . . . 23

SDIP42 - 42 pin Shrink Plastic DIP, 600 mils width, Package Mechanical Data. . . . . . . . . . . . . . .23

PART NUMBERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 17. Ordering Information Scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

REVISION HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Table 18. Document Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

3/26

M27W016

SUMMARY DESCRIPTION

The M27W016 is a 16 Mbit (2Mb x16) non-volatile,
One Time Programmable (OT P), FlexibleROM™
Memory. Read operations can be performed using
a single low voltage (2.7 to 3.6V) supply. Program
operations require an additional V

(11.4 to

PP

12.6V) power supply. On power-up the memory
defaults to Read mode where it can be read in the
same way as a ROM or EPROM.

Program commands are written to t he Command
Interface of the memory. An on-chip Program Con­troller (PC) simplifies the process of programming
the memory by taking care of all of the special op­erations that are required to update the memory
conte nts.

The M27W016 features an in novative command,
Multiple Word Program, used to program large
streams of data. It greatly reduces the total pro-

Figure 2. Logic Diagram Table 1. Signal Names

gramming time when a large number of Words are
written to the memory at any one time. Using this
command the entire memory can be program m ed
in 2s, compared to 9s using the standard Word
Progra m.

The end of a program operation can be de tected
and any error conditions identified. The command
set required to control the memory is consistent
with JEDEC standards.

Chip Enable and Output Enable signals control the
bus operation of the memory. They allo w simple
connection to most microprocessors, often without
additional logic.

The memory is offered in SO44, TSOP48 (12 x
20mm), PDIP42 and SDIP42 packages. The
memory is supplied with all the bits set to ’1’.

A0-A19 Address Inputs

V

V

20

A0-A19 DQ0-DQ15

E

G

M27W016

V

CC

SS

PP

16

AI05906

DQ0-DQ15 Data Inputs/Outputs
E
G
V

CC

V

PP

V

SS

NC Not Connected Internally

Chip Enable
Output Enable
Supply Voltage read
Supply Voltage program
Ground

4/26

Figure 3. PDIP Connection s Figure 4. SDIP Connection s

M27W016

A18
A17

A7
A6
A5
A4
A3
A2
A1
A0

V

SS

DQ0
DQ8
DQ1
DQ9
DQ2

DQ10

DQ3

DQ11

1
2
3
4
5
6
7
8
9
10

M27W016

11

E

12
13

G

14
15
16
17
18
19
20
21

AI05907

42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22

A19
A8
A9
A10
A11
A12
A13
A14
A15
A16
V

PP

V

SS

DQ15
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ4
V

CC

A18
A17

A7
A6
A5
A4
A3
A2
A1
A0

V

SS

DQ0
DQ8
DQ1
DQ9
DQ2

DQ10

DQ3

DQ11

1
2
3
4
5
6
7
8
9
10

M27W016

11

E

12
13

G

14
15
16
17
18
19
20
21

AI05907

42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22

A19
A8
A9
A10
A11
A12
A13
A14
A15
A16
V

PP

V

SS

DQ15
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ4
V

CC

5/26

M27W016

Figure 5. SO Connection s Figure 6. TSOP Connection s

NC
A18
A17 A8

A7
A6
A5
A4
A3
A2
A1
A0

V

SS

DQ0
DQ8

1
2
3
4
5
6
7
8
9
10
11

M27W016

12

E

13
14

G

15
16
17DQ1

DQ9

18
19

DQ10

DQ3

20
21

DQ11

44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
2322

NC

A19

A9
A10
A11
A12
A13
A14
A15
A16
V

PP

V

SS

DQ15
DQ7
DQ14
DQ6
DQ13
DQ5DQ2
DQ12
DQ4
V

CC

AI05909

V

PP
A16
A15
A14

A13
A12

A11
A10

A9

A8

A19

V

SS

NC

A18
A17

A5

A0

A7
A6

A4

A3
A2
A1

1

12

M27W016

13

24 25

E

48

37
36

V

SS

V

SS

DQ15
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ4

V

CC

V

CC

NC
DQ11
DQ3
DQ10
DQ2
DQ9
DQ1
DQ8
DQ0
G

V

SS

V

SS

AI05917

6/26

SIGNAL DESCRIPTIONS

See Figure 2, Logic Diagram, and Table 1, Sign al
Names, for a brief overview of the signals connect­ed to this device.

Address Inputs (A0-A19). The Address Inputs select the cells i n the memory array to a ccess dur­ing Bus Read operations. During Bus Write opera­tions they control the commands sent to the Command Interface of the Program Controller.

Data Inputs/Outputs (DQ0-DQ7). The Data In­puts/Outputs output the data stored at the selected address during a Bus Read operation. During Bus Write operations they represent the command sent to the Command Interface of the Program Controller. When reading the Status Register they report the status of the ongoing algorithm.

Data Inputs/Outputs (DQ8-DQ15). The Data In­puts/Outputs output the data stored at the selected address during a Bus Read operation. During Bus Write operations the Command Interface does not use these bits. When reading t he Status Register these bits should be ignored.

Chip Enable (E

). The Chip Enable, E, activates

the memory, allowing Bus Read operat ions to be
performed. It also controls the B us Write opera­tions, when V

Output Enable (G

is in the VHH range.

PP

). The Ou tput Enable, G, con-

trols the Bus Read operations of the memory. It

M27W016

also allows Bus Write operations, when V
the V

V

range.

HH

Supply Voltage. The VCC Supply Voltage

CC

supplies the power for Read operations.
A 0.1µF ca pacitor should be connected between

the V

Supply Voltage pin and the VSS Ground

CC

pin to decouple the current surges from the power
supply. The PCB track widths must be sufficient to
carry the currents required during program opera­tions, I

V

PP

.

CC3

Program Supply Voltage. VPP is both a
power supply and Write Protect pin. The two func­tions are selected by t he voltage range a pplie d to
the pin.

When the V

is in the VHH range (see Table 10,

PP

DC Characteristic, for the relevant values) the Pro­gram operation is enabled. During such opera­tions the V

If the V

must be stable in the VHH range.

PP

is kept under the VHH range, particularly

PP

in the voltage range 0 to 3.6V, any Program oper­ation is disabled or stopped.

Note that V

must not be left floating o r uncon-

PP

nected as the device may become unreliable. Vss Ground. The V

Ground is the reference

SS

for all voltage measurements.

PP

is in

7/26

M27W016

BUS OPERATIONS

There are six standard bus operations that control
the device. These are Bus Read, Bus Wri te, Out­put Disable, Standby, Automatic Standby and
Electronic Signature. See Tables 2, Bus Opera­tions, for a summary. Typically glitches of less
than 5ns on Chip Enable or Write Enable are ig­nored by the memory and do not affect bus opera­tions.

Bus Read. Bus Read operations read from the memory cells, or specific registers in the Com­mand Interface. A valid Bus Read operation in­volves setting the desired address on the Address Inputs and applying a Low signal, V able and Output Enable. The Data Inputs/Outpu ts will output the value, see Figure 12, Read AC Waveforms, and Table 11, Read AC Ch aracteris­tics, for details of when the output becomes valid.

Bus Write. Bus Write operations write to the Command Interface. Bus Write is enabled only when V

is set to VHH. A valid Bus W rite opera-

PP

tion begins by setting the desired addres s on the
Address Inputs. The Address Inputs are latched by
the Command Interface on the falling edge of Chip
Enable. The Data I nputs/Outputs are latched by
the Command Interface on the rising edge of Chip
Enable. Output Enable must remain High, V
during the whole Bus W rite operat ion . See Fi gure
13, Write AC Waveforms, and Table 12, Write AC
Characteristics, for details of the timing require­ments.

, to Chip En-

IL

IH

Output Disa bl e . The Data Inputs/Outputs are in the high impedance s tate when Output Enable is High, V

.

IH

Standby. When Chip Enable is High, V memory enters Standby mode and the Data In­puts/Outputs pins are placed in the high-imped­ance state. To reduce the S upply Current to the Standby Supply Current, I be held within V

± 0.2V. For the Standby current

CC

, Chip Enable should

CC2

level see Table 10, DC Characteristics.
During program operation the mem ory will cont in-

ue to use the Program Supply Current, I
Program operation until the operation completes.

Automatic Standby. If CMOS levels (V are used to drive the bus and the bus is inactive for 150ns or more the memory enters Automatic Standby where the internal Supply Current is re­duced to the Standby Supply Current, I Data Inputs/Outputs will still output data if a Bus Read operation is in progress.

Electronic Signature. The memory has two codes, the manufacturer code and the device code, that can be read to identify the memory. These codes can be read by applying t he signals listed in Tables 2, Bus Operat ions, once the A uto

,

Select Command is executed. To exit Electronic
Signature mode, the Read/Reset c ommand must
be issued.

CC3

± 0.2V)

CC

CC2

, the

IH

. The

, for

Table 2. Bus Operations

Operation E G

HH

V

IL

V

IL

V

IH

V

IL

V

IL

Bus Read
Bus Write
Output Disable X
Standby
Read Manufacturer

Code

Read Device Code

Note: 1. X = VIL or VIH.

2. XX = V

3. When reading Statu s Register during Program algori thm execution VPP must be kept at VHH.

, V

or V

IL

IH

V

IL

V

IH

V

IH

X X X Hi-Z

V

IL

V

IL

V

PP

(3)

XX

V

HH

X X Hi-Z

V

HH

V

HH

Address Inputs

A0-A19

Cell Address Data Output
Command Address Data Input

A0 = VIL, A1 = VIL,
Others VIL or V

A0 = VIH, A1 = VIL,
Others VIL or V

IH

IH

Data Inputs/Outputs

DQ15-DQ0

0020h

888Dh

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