Datasheet AT27BV400-15TC, AT27BV400-15RI, AT27BV400-12JC, AT27BV400-15RC, AT27BV400-15JC Datasheet (ATMEL)

Features

•

Fast Read Access Time - 120 ns

•

Word-wide or Byte-wide Configurable

•

Dual Voltage Range Operation

– Unregulated Battery Power Supply Range, 2.7V to 3.6V

or Standard 5V

•

4-Megabit Flash and Mask ROM Compatable

•

Low Power CMOS Operation

µµµµ

–20

A Maximum Standby

– 10 mA Max. Active at 5 MHz for V

•

JEDEC Standard Packages

– 44-Lead PLCC
– 44-Lead SOIC (SOP)
– 48-Lead TSOP (12 mm x 20 mm)

•

High Reliability CMOS Technology

– 2,000 ESD Protection
– 200 mA Latchup Immunity

•

Rapid™ Programming Algorithm - 50

•

CMOS and TTL Compatible Inputs and Outputs

– JEDEC Standard for LVTTL and LVBO

•

Integrated Product Identification Code

•

Commercial and Industrial Temperature Ranges

±±±±

10% Supply Range

= 3.6V

CC

µµµµ

s/word (typical)

4-Megabit
(256K x 16 or
512K x 8)
Unregulated

Battery-Voltage

High Speed

™

Description

The AT27BV400 is a high performance low-power, low-voltage 4,194,304-bit one time
programmable read only memory (OTP EPROM) organized as either 256K by 16 or
512K by 8 bits. It requires only one supply in the range of 2.7 to 3.6V in normal read

(continued)

Pin Configurations

Pin Name Function

A0 - A17 Addresses
O0 - O15 Outputs
O15/A-1 Output/Address

/V

BYTE
CE

OE
NC No Connect

SOIC (SOP)

NC
NC

A17

A7
A6
A5
A4
A3
A2
A1
A0

CE

GND

OE
O0
O8
O1
O9
O2

O10

O3

O11

Byte Mode/

PP

Program Supply
Chip Enable
Output En able

1

44

2

43

3

42

4

41

5

40

6

39

7

38

8

37

9

36

10

35

11

34

12

33

13

32

14

31

15

30

16

29

17

28

18

27

19

26

20

25

21

24

22

23

NC
NC
A8
A9
A10
A11
A12
A13
A14
A15
A16
BYTE/VPP
GND
015/A-1
O7
O14
O6
O13
O5
O12
O4
VCC

A15
A14
A13
A12
A11
A10

A17

A4
A3
A2
A1
A0

CE

GND

OE
O0
O8
O1

1
2
3
4
5
6
7

A9

8

A8

9

NC

10

NC

11

NC

12

NC

13

NC

14

NC

15

NC

16

NC

17
18

A7

19

A6

20

A5

21

A4

22

A3

23

A2

24

A1

PLCC

A5A6A7

A17NCGNDNCA8A9A10

65432
7
8
9
10
11
12
13
14
15
16
17

1819202122232425262728

O9

O2

O10O3O11

1

4443424140

O4

NC

VCC

TSOP

Ty pe 1

A11

39
38
37
36
35
34
33
32
31
30
29

O12O5O13

A12
A13
A14
A15
A16
BYTE/VPP
GND
O15/A-1
07
O14
O6

48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25

A16
BYTE/VPP
GND
015/A-1
O7
O14
O6
O13
O5
O12
O4
VCC
O11
O3
O10
O2
O9
O1
O8
O0
OE
GND
CE
A0

OTP EPROM

AT27BV400
Preliminary

AT27BV400
Preliminary

Rev. 0989A–03/98

1

mode operation. The by-16 organization makes this part
ideal for portable and hand held 16- and 32-bit micropro­cessor systems using either regulated or unregulated bat­tery power.

Atmel’s innovative design te chniques provide f ast speeds
that rival 5V parts while ke eping the low power c onsump­tion of a 3V supply. At V

= 2.7V, any w ord can be

CC

accessed in less than 120ns. With a typical power dissipa­tion of only 10 mW at 5mHZ and V

= 3V, the AT27BV400

CC

consumes less than one fifth the power of a standard 5V
EPROM.

Standby mode supply cu rrent is typica lly less than 1 mA at
3V. The AT27BV400 simplifies system design an d
stretches battery lifetime e ven furthe r by elim inating th e
need for power supply regulation.

The AT27BV400 can be organized as either word-wide or
byte-wide. The org anizatio n is se lected v ia the B YTE

/V

PP

pin. When BYTE/VPP is asserted high (VIH), the word-wide
organization is sele cted and the O15/A-1 pi n is used for
O15 data output. When BY TE

/VPP is asserted low (VIL),the
byte wide organization is se lected and the O 15/A-1 pin is
used for the address pin A-1. When the AT27BV400 is logi­cally regarded as x16 (word-wide), but read in the byte­wide mode, then with A-1= V
word are selected with A-1 = V

the lower 8 bits of the 1 6-bi t

IL

the upper 8 bits of the 16-

IH

bit word are selected.
The AT27BV400 is available in industry standard JEDEC-

approved one-time programmable (OTP) PLCC, SOIC
(SOP), and TSOP packages. The device features two-line
control(CE

,OE) to eliminate bus contention.

With high density 25 6K wor d or 5 12K by te s to rage c ap abi l­ity, the AT27B V400 allo ws fir mware to be to b e sto red reli­ably and to be accessed by the system without the delays
of mass storage media.

The AT27BV400 operating with V

at 3.0V produces TTL

CC

level outputs that are compatible with standard TTL logic

devices operating at V

= 5V. At VCC = 2.7V, the part is

CC

compatible with JEDEC approved low voltage battery oper­ation (LVBO) interface specifications. T he device is als o
capable of standard 5-volt operation making it ideally suited
for dual sup ply rang e system s or card produc ts that are
pluggable in both 3-volt and 5-volt hosts.

Atmel’s AT27BV400 has additional features that ensure
high quality a nd e ffici ent produc tion use . The Rapi d

TM

Pro­gramming Algorithm reduces the time required to program
the part and guarantees reliable programming. Program­ming time is typical ly on ly 50µ s/word. The In tegrated Prod­uct Identification Code electronically identifies the device
and manufacturer. This feature is used by industry standard
programming equi pmen t to se lect the prop er progr amm ing
equipment and voltages. The AT27BV400 programs
exactly the same way as a standard 5V AT27C400 and
uses the same programming equipment.

System Considerations

Switching between active and standby conditions via the
Chip Enable pin may produce trans ient voltage excursions.
Unless accommodated by the system design, these tran­sients may exceed data sheet limits, resulting in device
non-conforman ce. At a mini mum, a 0.1 µF high freque ncy,
low inherent induc tance, cera mic capacitor should be uti­lized for each device. This capacitor should be connected
between the V
close to the device as possible. Additionally, to stabilize the
supply voltage level on printed circuit boards with large
EPROM arra ys, a 4.7 µ F bulk electrolytic capacitor should
be utilized, again connected between the V
terminals. This capacitor should be positioned as close as
possible to the point where the power supply is connected
to the array.

and Ground terminals of the device, as

CC

and Ground

CC

Block Diagram

2

AT27BV400

Absolute Maximum Ratings*

Temperature Under Bias................................-55°C to +125°C

Storage Temperature..................................... -65°C to +150°C

Voltage on Any Pin with

with Respect to Ground..................................-2.0V to +7.0V

Voltage on A9 with

Respect to Ground ......................................-2.0V to +14.0V

VPP Supply Voltage with

Respect to Ground .......................................-2.0V to +14.0V

Operating Modes

AT27BV400

*NOTICE: S tresses beyond those listed under “Absolute

Maximum Ratings” may cause permanent dam­age to the device. This i s a stre ss rating only and
functional operation of the device at these or any

(1)

(1)

Note: 1. Minimum voltage is -0. 6V DC which undershoot

(1)

other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions f or e xtended p eriods ma y aff ect de vice
reliability.

to -2.0V for pulses of less than 20 ns. Maximum
output pin voltage is Vcc + 0.75V DC which may
overshoot to + 7.0V for pulses of less than 20 ns.

Outputs

Mode/Pin CE OE Ai BYTE/V

Read Word-wide V
Read Byte-wide Upper V
Read Byte-wide Lower V
Output Disable X
Standby V
Rapid Program

(3)

IL

IL

IL

(1)

IH

V

IL

PGM Verify X V
PGM Inhibit V

Product Identification

Notes: 1. X can be VIL or V

(5)

IH.

IH

V

IL

V

IL

V

IL

V

IL

V

IH
(1)

X

V

IH

IL

V

IH

V

IL

(1)

X

(1)

X

(1)

X

(1)

X

(1)

X

Ai V
Ai V

(1)

X

A9 = V
A0 = VIH or V
A1 - A17 = V

(4)

H

IL
IL

2. Read, output disable, and stand by modes require, 2.7V ≤ VCC ≤ 3.6V, or 4.5V ≤ VCC ≤ 5.5V.

3. Refer to the programming characteristics tables in this data sheet.
= 12.0 ± 0.5V.

4. V

H

5. Two identifier words may be selected. All Ai inputs are held low (VIL) except A9,which is set to VH, and A0, which is toggled

low (V

6. Standby V

) to select the Manufacturer’s Identification word and high (VIH) to select the Device Code word.

IL

current (ISB) is specified with VPP = VCC. VCC > VPP will cause a slight increase in I

CC

O

PP

V

IH

V

IL

V

IL

0-O7

D
D
D

OUT

OUT

OUT

O8-O

D

OUT

14

O15/A-1

D
High Z V
High Z V

OUT

IH

IL

XHigh Z

(6)

X

PP

PP

V

PP

V

IH

SB.

High Z

D

IN

D

OUT

High Z

Identification Code

3

DC and AC Operating Conditions for Read Operation

AT27BV400

-12 -15

Operating Temperature (Case)

V

Power Supply

CC

Com. 0°C - 70°C0
Ind. -40°C - 85°C-40

2.7V to 3.6V 2.7V to 3.6V
5V ± 10% 5V ± 10%

°

C - 70°C

°

C - 85°C

DC and Operating Characteristics for Read Operation

Symbol Parameter Condition Min Max Units
V

= 2.7V to 3.6V

CC

±

I

LI

I

LO

(2)

I

PP1

I

SB

I

CC

V

IL

V

IH

V

OL

V

OH

Input Load Current VIN = 0V to V
Output Leakage Current V

(1)

V

Read/Standby Current V

PP

(1)

V

Standby Current

CC

= 0V to V

OUT

= V

PP

CC

I

(CMOS), CE = V

SB1

I

(TTL), CE = 2.0 to V

SB2

VCC Active Current f = 5MHz, I

Input Low V oltage

Input High Voltage

Output Low Voltage

Output High Voltage

VCC = 3.0 to 3.6V -0.6 0.8 V
V

= 2.7 to 3.6V -0.6 0.2 x V

CC

= 3.0 to 3.6V 2.0 VCC + 0.5 V

V

CC

V

= 2.7 to 3.6V 0.7 x V

CC

= 2.0 mA 0.4 V

I

OL

I

= 100 µA0.2V

OL

I

= 20 µA0.1V

OL

= -2.0 mA 2.4 V

I

OH

I

= -100 µAV

OH

I

= -20 µAV

OH

CC

CC

±

0.3V 20

CC

+ 0.5V 100

CC

= 0 mA, CE = VIL, VCC = 3.6V 10 mA

OUT

- 0.2 V

CC

- 0.1 V

CC

VCC = 4.5V to 5.5V

I
I
I

I

I
V
V
V
V

LI

LO

PP1

SB

CC

(2)

IL

IH

OL

OH

Input Load Current VIN = 0V to V
Output Leakage Current V

(1)

V

Read/Standby Current V

PP

(1)

V

Standby Current

CC

OUT

= V

PP

(CMOS), CE = V

I

SB1

I

(TTL), CE = 2.0 to V

SB2

VCC Active Current f = 5 MHz, I

= 0V to V

CC

OUT

CC

CC

±

0.3V 100

CC

CC

= 0 mA, CE = V

+ 0.5V 1 mA

IL

Input Low V oltage -0.6 0.8 V
Input High Voltage 2.0 VCC + 0.5 V
Output Low Voltage IOH = 2.1 mA 0.4 V
Output High Voltage I

= -400 µA2.4V

OH

Notes: 1. VCC must be applied simultaneously or before VPP, and removed simultaneously or after VPP.

2. VPP may be connected directly to VCC except during programming. The supply current would then be the sum of I

CC

1

±

5

10

CC

VCC + 0.5 V

±

1

±

5

10

40 mA

CC

µ

A

µ

A

µ

A

µ

A

µ

A

V

µ

A

µ

A

µ

A

µ

A

and IPP.

4

AT27BV400

AC Characteristics for Read Operation

VCC = 2.7V to 3.6V and 4.5V to 5.5V

AT27BV400

AT27BV400

-12 -15

Symbol Parameter Condition

(2)

t

ACC

(2)

t

CE

(2)(3)

t

OE

(4)(5)

t

DF

(4)

t

OH

t

ST

t

STD

Address to Output Delay CE = OE = V
CE to Output Delay OE = V
OE to Output Delay CE = V
OE or CE High to Output Float, whichever

occured first
Output Hold from Address CE or OE,

whichever occured first
BYTE High to Output Valid 120 150 ns
BYTE Low to Output Transition 50 60 ns

Notes: 1. 2,3,4,5. See the AC Waveforms for Read Operation diagram.

Byte-Wide Read Mode AC Waveforms

Min M ax Min Max

IL

IL

IL

120 150 ns
120 150 ns

40 50 ns

Units

30 35 ns

55ns

Note: BYTE/VPP = V

IL

Word-Wide Read Mode AC Waveforms

Note: BYTE/VPP = V

IH

5

BYTE

Notes: 1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.

Transition AC Waveforms

2. OE

3. OE may be delayed up to t

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

5. Output float is defined as the point when data is no longer driven.

may be delayed up to tCE - tOE after the falling edge of CE without impact on t

- tOE after the address is valid without impact on t

ACC

CE.

ACC

.

Input Test Waveforms and Measurement Levels

Output Test Load

tR, tF < 20 ns (10% to 90%)

Note: CL = 100 pF including jig

Pin Capaticance

f = 1 MHz, T = 25°C

C

IN

C

OUT

Note: 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.

(1)

Typ Max Units Conditions

410pFV
812pFV

capacitance.

IN

OUT

= 0V

= 0V

6

AT27BV400

AT27BV400

Programming Waveforms

(1)

Notes: 1. The Input Timing reference is 0.8V for VIL and 2.0V for VIH.

and t

2. t

OE

3. When programming the AT27BV400, a 0.1 µF capacitor is required across VPP and ground to suppress voltage transients.

are characteristics of the device but must be accommodated by the programmer.

DFP

DC Programming Characteristics

TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V

Symbol Parameter Test Conditions

I

LI

V

IL

V

IH

V

OL

V

OH

I

CC2

I

PP2

V

ID

Input Load Current VIN = VIL, V
Input Low Level -0.6 0.8 V
Input High Level 2.0 V
Output Low Voltage IOL = 2.1 mA 0.4 V
Output High Voltage IOH = -400 µA2.4 V
VCC Supply Current (Program and Verify) 50 mA
VPP Supply Current CE = V
A9 Product Identification Voltage 11.5 12.5 V

IH

IL

Limits

10

±

+ 0.5 V

CC

30 mA

UnitsMin Max

A

µ

7

AC Programming Characteristics

TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V

Symbol Parameter Test Conditions

(1)

Limits

UnitsMin Max

t

AS

t

OES

t

DS

t

AH

t

DH

t

DFP

t

VPS

t

VCS

t

PW

t

OE

t

PRT

Address Setup Time
OE Setup Time 2
Data Setup Time 2

Input Rise and Fall Times:

(10% to 90%) 20 ns

Address Hold Time 0

Input Pulse Levels:

Data Hold Time 2
OE High to Output Float Delay
VPP Setup Time 2

(2)

Input Timing Reference Level:

0.45V to 2.4V

0.8V to 2.0V

VCC Setup Time 2
CE Program Pulse Width

(3)

Data Valid from OE 150 ns

Output Timing Reference Level:

0.8V to 2.0V

BYTE /VPP Pulse Rise T ime During
Programming

Notes: 1. V

must be applied simultaneously or before V

cc

2. This parameter is only sampled a nd is not 10 0% tested . Output Flo at is defin ed as the po int where data is no long er drive n—
see timing diagram.

3. Program Pulse width tolerance is 50 µse c ± 5%.

and removed simultaneously or after VPP.

PP

Atmel’s 27BV800 Integrated Product Identificatio n Code

2

0 130 ns

47.5 52.5

50 ns

(1)

µ

s

µ

s

µ

s

µ

s

µ

s

µ

s

µ

s

µ

s

Pins

A0 O15 O14 O13 O12 O11 O10 O9 O8

Codes

Manufacturer 000011110 1E1E
Device Type 111110100 F4F4

Note: 1. The AT27BV400 has the same Product Identification Code as the AT27C400. Both are programming compatible.

O7 O6 O5 O4 O3 O2 O1 O0

Hex Data

8

AT27BV400

Rapid Programming Algorithm

A 50 µs CE pulse width is used to pr og r am. The addres s is
set to the first location. V
is raised to 13.0V. Each add ress is fir st programmed with
one 50 µs CE
tion/reprogramming loo p is exec uted for each addres s. In
the event a word fails to pass verificati on, up to 1 0 succ es­sive 50 µs pulses are applied with a verification after each

pulse without verification. Then a verifica-

is raised to 6.5V and BYTE/V

CC

PP

AT27BV400

pulse. If the word fails to verify after 10 pulses have been
applied, the part is considered failed. After the word verifies
properly, the next address is selected until all have been
checked. V
words are read again and compared with the original data
to determine if the device passes or fails.

is then lowered to 5.0V and VCC to 5.0V. All

PP

9

Ordering Information

(mA)

I

t

ACC

(ns)

120 10 0.02 AT27BV400-12JC

CC

Ordering Code Package Operation RangeActive Standby

AT27BV400-12RC
AT27BV400-12TC

44J
44R
48T

Commercial

(0°C to 70°C)

10 0.02 AT27BV400-12JI

AT27BV400-12RI
AT27BV400-12TI

150 10 0.02 AT27BV400-15JC

AT27BV400-15RC
AT27BV400-15TC

10 0.02 AT27BV400-15JI

AT27BV400-15RI
AT27BV400-15TI

44J
44R
48T

44J
44R
48T

44J
44R
48T

Industrial

(-40°C to 85°C)

Commercial

(0°C to 70°C)

Industrial

(-40°C to 85°C)

10

44J
44R
48T

Package Type

44-Lead, Plastic J-Leaded Chip Carrier (PLCC)
44-Lead, 0.450" Wide, Plastic Gull Wing Small Outline Package (SOIC/SOP)
48-Lead, Plastic Thin Small Outline Package (TSOP) 12 x 20 mm

AT27BV400

Packaging Information

AT27BV400

44-Lead, 0.450" Wide,

44R,

Plastic Gull Wing Small Outline Package (SOIC)
Dimensions in Inches and (Millimeters)

48-Lead, 12 x 20 mm,

48T,

Plastic Thin Small Outline Package(TSOP)
Dimensions in Millimeters and (Inches)*

44J

, 44-Lead, Plastic J-Leaded Chip Carrier (PLCC)

Dimensions in Inches and (Millimeters)

JEDEC STANDARD MS-018 AC

.045(1.14) X 45°

.032(.813)
.026(.660)

.050(1.27) TYP

PIN NO.1
IDENTIFY

.500(12.7) REF SQ

.045(1.14) X 30° - 45°

.656(16.7)

SQ

.650(16.5)

.695(17.7)

SQ

.685(17.4)

.022(.559) X 45° MAX (3X)

.012(.305)
.008(.203)

.630(16.0)
.590(15.0)

.021(.533)

.013(.330)

.043(1.09)
.020(.508)

.120(3.05)

.090(2.29)
.180(4.57)
.165(4.19)

*Controlling dimension: millimeters

11