Datasheet AT27BV040-15TI, AT27BV040-15TC, AT27BV040-15JI, AT27BV040-15JC, AT27BV040-12TI Datasheet (ATMEL)

Features

0346C

Fast Read Access Ti me - 120 ns

•

Dual Voltage Range Operation

•

Unregulated Battery Power Sup ply Range, 2.7V to 3.6V
or Standard 5V ± 10% Supply Range

Compatible with JEDEC Standard AT27C040

•

Low Power CMOS Operation

•

20 µA max. (less than 1 µA typical) Standby for VCC = 3.6V
29 mW max. Active at 5 MHz for VCC = 3.6V

JEDEC Standard Packages

•

32-Lead PLCC
32-Lead TSOP

High Reliabili ty C MOS Te ch nology

•

2,000V ESD Protection
200 mA Latchup Imm un ity

RapidProgramming Algorithm - 100 µs/byte (typical)

•

CMOS and TTL Compatible Inputs and Outputs

•

JEDEC Standard for LVTTL and LVBO

Integrated Produc t Ide nti fication Code

•

Commercial and Industrial Temperature Range s

•

Description

The AT27BV040 chip is a high performance, low power, low voltage, 4,194,304 bit
one-time programmable read only memory (EPROM) organized as 512K by 8 bits. It
requires only one supply in the range of 2.7 to 3.6V in normal read mode operation,
making it ideal for fast, portable systems using either regulated or unregulated battery
power.

Atmel’s innovative design techniques provide fast speeds that rival 5V parts while
keeping the low power consumption of a 3V supply. At V
accessed in less than 100 ns. With a typical power dissipation of only 18 mW at 5
MHz and V
standard 5V EPROM. Standby mode supply current is typically les s than 1 µA at 3V.
The AT27BV040 simplifies system design and stretches battery lifetime even further
by eliminating the need for power supply regulation.

= 3V, the AT27BV040 consumes less than one fifth the power of a

CC

= 2.7V, any byte can be

CC

(continued)

Pin Configurations

AT27BV040

4 Megabit
(512K x 8)
Unregulated



Battery-Voltage

High Speed
OTP
CMOS EPROM

Pin Name Function

A0 - A18 Addresses
O0 - O7 Outputs
CE Chip Enable
OE Output Enable

PLCC Top View

TSOP Top View

Type 1

AT27BV040

3-53

Description (Continued)

The AT27BV040 is available in industry standard JEDEC­approved one-time programmable (OTP) plastic PLCC
and TSOP packages. All devices feature two-line control

CE, OE) to give designers the flexibility to prevent bus

(
contention.

The AT27BV040 operating with V
level outputs that are compatible with standard TTL logic
devices operating at V

= 5.0V. At VCC = 2.7V, the part

CC

is compatible with JEDEC approved low voltage battery
operation (LVBO) interface specifications. The device is
also capable of standard 5-volt operation making it ideally
suited for dual supply range systems or card products that
are pluggable in both 3-volt and 5-volt hosts.

Atmel’s AT27BV040 has additional features to ensure
high quality and efficient production use. The Rapid
gramming Algorithm reduces the time required to program
the part and guarantees reliable programming. Program­ming time i s typically only 100 µs/byte. The Integrated
Product Identification Code electronically identifies the de­vice and manufacturer. This feature is used by industry
standard programming equipment to select the proper
programming algorithms and voltages. The AT27BV040
programs exactly the same way as a standard 5V
AT27C040 and uses the same programming equipment.

at 3.0V produces TTL

CC



Pro-

System Considerations

Switching between active and standby conditions via the
Chip Enable pin may produce transient voltage excur­sions. Unless accommodated by the system design, these
transients may exceed data sheet limits, resulting in de­vice non-conformance. At a minimum, a 0.1 µF high fre­quency, low inherent inductance, ceramic capacitor
should be utilized for each device. This capacitor should
be connected between the V
the device, as close to the device as possible. Additionally,
to stabilize the supply volt age level on printed circuit
boards with large EPROM arrays, a 4.7 µF bulk electrolytic
capacitor should be utilized, again connected between the

and Ground terminals. This capacitor should be posi-

V

CC

tioned as close as possible to the point where the power
supply is connected to the array.

and Ground terminals of

CC

3-54 AT27BV040

AT27BV040

Block Diagram

Absolute Maximum Ra ti ngs *

Temperature Under Bias .................. -40°C to +85°C

Storage Temperature...................... -65°C to +125°C

Voltage on Any Pin 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

*NOTICE: Stresses beyond those listed unde r “Absolu te Maxi-

mum Ratings” may cause permanent da ma ge to th e de vice .
This is a stress rating only and functional operation of the
device at these or any other conditions beyond those indi­cated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions
for extended periods may affect device reliability.

Note: 1. Minimum volta ge is -0. 6V dc whic h ma y unde rsh oo t

to -2.0V for pulses of less than 20 ns. Maximum out­put pin voltage is V
ceeded if certain precautions are observed (consult
application notes) and which may overshoot to
+7.0V for pulses of less than 20 ns.

+ 0.75V dc which may be ex-

CC

(1)

(1)

(1)

Operating Modes

Mode \ Pin

(2)

Read
Output Disable
Standby
Rapid Program
PGM Verify
PGM Inhibit

Product Identification

Notes: 1. X can be VIL or VIH.

2. Read, output disable, and standby modes require,

3. Refer to Programming Characteristics. Programming

(2)

(2)

(3)

(3)

(3)

(3, 5)

2.7V ≤ VCC ≤ 3.6V, or 4.5V ≤ VCC ≤ 5.5V.

modes require VCC = 6.5V.

CE OE Ai V
V

IL

XV

V

IH

V

IL

XV

V

IH

V

IL

V

IL

IH

Ai X

XXV

XXXV

V

IH

IL

V

IH

V

IL

Ai V
Ai V

XVPPVCC

A9 = VH

(4)

A0 = VIH or VIL

A1 - A18 = V

IL

4. VH = 12.0 ± 0.5V.

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

PP

(1)

PP
PP

XV

) to select the Manufacturer’s Identification

IL

) to select the Device Code byte.

IH

V

VCC

CC
CC

VCC
VCC

CC

CC

(2)
(2)
(2)
(3)
(3)
(3)

(3)

Outputs

D

OUT

High Z
High Z
D

IN

D

OUT

High Z
Identification

Code

3-55

DC and AC Operating Conditions f or Read Operation

= Preliminary Information

AT27BV040

-12 -15

Operating Temperature
(Case)

V

Power Supply

CC

Com. 0°C - 70°C 0°C - 70°C
Ind. -40°C - 85°C -40°C - 85°C

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

DC and Operating Characte ristics for Read Operation

Symbol Parameter Condition Min Max Units

VCC = 2.7V to 3.6V

I

LI

I

LO

I

PP1

I

SB

I

CC

V

IL

V

IH

V

OL

V

OH

VCC = 4.5V to 5.5V

I

LI

I

LO

I

PP1

I

SB

I

CC

V

IL

V

IH

V

OL

V

OH

Notes: 1. VCC must be applied simultaneously with or before

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

(2)

(1)

VPP

Read/Standby Current VPP = V

(1)

VCC

Standby Current

VCC Active Current
Input Low Voltage

Input High Voltage

Output Low Voltage

Output High Voltage

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

(2)

(1)

VPP

Read/Standby Current VPP = V

(1)

VCC

Standby Current

VCC Active Current f = 5 MHz, I

= 0V to V

OUT

I

(CMOS), CE = VCC ± 0.3V

SB1

(TTL), CE = 2.0 to VCC + 0.5V

I

SB2

f = 5 MHz, I
V

= 3.0 to 3.6V -0.6 0.8 V

CC

V

= 2.7 to 3.6V -0.6 0.2 x V

CC

V

= 3.0 to 3.6V 2.0 VCC + 0.5 V

CC

V

= 2.7 to 3.6V 0.7 x VCCVCC + 0.5 V

CC

I

= 2.0 mA 0.4 V

OL

I

= 100 µA 0.2 V

OL

I

= 20 µA 0.1 V

OL

I

= -2.0 mA 2.4 V

OH

I

= -100 µAV

OH

I

= -20 µAV

OH

= 0V to V

OUT

I

(CMOS), CE = VCC ± 0.3V 100 µA

SB1

I

(TTL), CE = 2.0 to VCC + 0.5V 1 mA

SB2

CC

CC

CC

CC

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

OUT

CC

CC

= 0 mA, CE = V

OUT

IL

- 0.2 V

CC

- 0.1 V

CC

Input Low Voltage -0.6 0.8 V
Input High Voltage 2.0 VCC + 0.5 V
Output Low Voltage IOL = 2.1 mA 0.4 V
Output High Voltage IOH = -400 µA 2.4 V

2. VPP may be connected directly to VCC, except during pro-

V

, and removed simultaneously with or after VPP.

PP

gramming. The supply current would then be the sum of I
and IPP.

±1 µA
±5 µA

10 µA
20 µA

100 µA

8mA

CC

±1 µA
±5 µA

10 µA

30 mA

V

CC

3-56 AT27BV040

= Preliminary Information

AT27BV040

AC Characteristics for Read Operation (V

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

CC

Symbol Parameter Condition

(3)

t

ACC

t

CE

t

OE

(4, 5)

t

DF

t

OH

Notes: 2, 3, 4, 5. - see AC Waveforms for Read Operation.

Address to Output Delay CE = OE = V

(2)

CE to Output Delay OE = V

(2, 3)

OE to Output Delay CE = V

IL

IL

OE or CE High to Output Float, whichever occurred first 40 50 ns
Output Hold from Address, CE or OE,

whichever occurred first

(1)

AC Waveforms for Re ad O peration

AT27BV040

-12 -15

Min Max Min Max

IL

120 150 ns
120 150 ns
50 60 ns

0 0ns

Units

Notes: 1. Timing measurement references are 0.8V and 2.0V.

Input AC drive levels are 0.45V and 2.4V. See Input
Test Waveforms and Me as urement Levels.
OE may be delayed up to tCE-tOE after the falling

2.
edge of
OE may be delayed up to t

3.
is valid without impact on t

CE without impact on tCE.

ACC-tOE

.

ACC

after the address

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.

3-57

Note: CL = 100 pF
including jig capacitance.

Input Test Waveform a nd Mea sur ement Level

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

Output Test Load

Pin Capacitance (f = 1 MHz, T = 25°C)

(1)

Typ Max Units Conditions

C

IN

C

OUT

Note: 1. Typical values for nomina l su pp ly vol tage. This parameter is only sampled and is not 100% teste d.

48pFV
812pFV

= 0V

IN
OUT

= 0V

3-58 AT27BV040

AT27BV040

Programming Wavef or ms

(1)

Notes: 1. The Inp ut Timing Reference is 0.8V for VIL and

2.0V for V
and t

2. t

OE

must be accommodated by the programmer.

.

IH

are characte ristics of the device but

DFP

3. Whe n pro gramming the AT27BV040 a 0.1 µF capacitor
is required across V
ous voltag e tr ansients.

and ground to suppress spuri-

PP

DC Programming Characteristics

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

Symbol Parameter

I

LI

V

IL

V

IH

V

OL

V

OH

I

CC2

I

PP2

V

ID

Input Load Current V
Input Low Lev el -0.6 0.8 V
Input High Level 2.0 V
Output Low Voltage IOL = 2.1 mA 0.4 V
Output High Volta ge IOH = -400 µA2.4 V

VCC Supply Current
(Program and Verify)

VPP Supply
Current

A9 Product Identi fication Voltage 11.5 12.5 V

Test
Conditions

= VIL, V

IN

CE = V

IL

Limits

Min

IH

Max

±10 µA

+ 0.7 V

CC

40 mA
20 mA

Units

3-59

AC Programming Characteristics

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

Sym­bol Parameter

Address Setup Time 2 µs

t

AS

OE Setup Time 2 µs

t

OES

Data Setup

t

DS

Time
Address Hold Time 0 µs

t

AH

Data Hold Time 2 µs

t

DH

OE High to Out-

t

DFP

put Float Delay
VPP Setup Time 2 µs

t

VPS

VCC Setup

t

VCS

Time
CE Program

t

PW

Pulse Width
Data Valid

t

OE

from OE
VPP Pulse Rise Time During

t

PRT

Programming

(2)

Test
Conditions*

(2)

(3)

Limits

(1)

Min Max

2

0130ns

2

95 105 µs

150 ns

50 ns

Units

µs

µs

Rapid Programming Algor ithm

A 100 µs CE pulse width is used to program. The address
is set to the first location. V
raised to 13.0V. Each address is first programmed with
one 100 µs

CE pulse without verification. Then a verifica­tion/reprogramming loop is executed for each address. In
the event a byte fails to pass verification, up to 10 succes­sive 100 µs pulses are applied with a verification after
each pulse. If the byte fails to verify after 10 pulses have
been applied, the part is considered failed. After the byte
verifies properly, the next address is selected until all have
been checked. V

is then lowered to 5.0V and VCC to

PP

5.0V. All bytes are read again and compar ed with the
original data to determine if the device passes or fails.

is raised to 6.5V and VPP is

CC

*AC Conditions of Test:

Input Rise and Fa ll Times (10% to 90%). ..............20 ns

Input Pulse Levels....................................0.45V to 2.4V

Input Timing Reference Level....................0.8V to 2.0V

Output Timing Reference Level.................0.8V to 2.0V

Notes: 1. V

Atmel’s 27BV040 Integrated

must be applied simultaneously or before VPP

CC

(1)

PP

.

and removed simultaneously or af ter V

2. This parameter is only sampled and is not 100%
tested. Output Float is defined as the point where
data is no longer driven —see timing diagram.

3. Program Pulse width tolerance is 100 µsec ± 5%.

Product Identification Code

Pins

Codes

Manufacturer000011110 1E
Device Type 1000010110B
Note: 1. The AT27BV040 has the same Prod uc t Id en tification

A0 O7 O6 O5 O4 O3 O2 O1 O0

Code as the AT27C040. Both are prog ramming
compatible.

Hex

Data

3-60 AT27BV040

= Preliminary Information

AT27BV040

Ordering Information

(mA)

I

t

ACC

(ns)

120 8 0.02 AT27BV040-12JC 32J Commercial

150 8 0.02 AT27BV040-15JC 32J Commercial

CC

V

= 3.6V

CC

Active Standby

8 0.02 AT27BV040-12JI 32J Industrial

8 0.02 AT27BV040-15JI 32J Industrial

Ordering Code Package Operation Range

AT27BV040-12TC 32T (0°C to 70°C)

AT27BV040-12TI 32T (-40°C to 85°C)

AT27BV040-15TC 32T (0°C to 70°C)

AT27BV040-15TI 32T (-40°C to 85°C)

32J 32 Lead, Plastic J-Leade d Chi p Carrier (PLCC)
32T 32 Lead, Plasti c Thin Smal l Outli ne Packag e (TSOP)

Package Type

3-61