Page 1
Features
•
Fast Read Access Time - 120 ns
•
Dual Voltage Range Operation
– Unregulated Battery Power Supply 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
– 36 mW max. Active at 5 MHz for VCC = 3.6V
•
JEDEC Standard Packages
– 32-Lead PLCC
– 32-Lead TSOP (8 x 20 mm)
– 32-Lead VSOP (8 x 14 mm)
•
High Reliability CMOS Technology
– 2,000V ESD Protection
– 200 mA Latchup Immunity
•
Rapid™ Programming Algorithm - 100 µs/b y te (typic al)
•
CMOS and TTL Compatible Inputs and Outputs
– JEDEC Standard for LVTTL and LVBO
•
Integrated Product Identification Code
•
Commercial and Industrial Temperature Ranges
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.
(continued)
4-Megabit
(512K x 8)
Unregulated
Battery-Voltage
™
High-Speed OTP
EPROM
AT27BV040
Pin Configurations
Pin Name Function
A0 - A18 Addresses
O0 - O7 Outputs
CE
OE
PLCC Top View
A12
432
5
A7
6
A6
7
A5
8
A4
9
A3
10
A2
11
A1
12
A0
13
O0
14151617181920
O1
Chip Enable
Output En able
A15
A16
VPP
VCC
1
323130
O2
O3O4O5
GND
A18
A17
29
28
27
26
25
24
23
22
21
O6
A14
A13
A8
A9
A11
OE
A10
CE
O7
A11
A13
A14
A17
A18
VCC
VPP
A16
A15
A12
TSOP, VSOP Top View
Type 1
1
2
A9
3
A8
4
5
6
7
8
9
10
11
12
13
A7
14
A6
15
A5
16
A4
OE
32
A10
31
CE
30
O7
29
O6
28
O5
27
O4
26
O3
25
GND
24
O2
23
O1
22
O0
21
A0
20
A1
19
A2
18
A3
17
Rev. 0346D–10/98
1
Page 2
Atmel’s innovative desi gn techniques provide fast sp eeds
that rival 5V parts while keepi ng the lo w power con sumption of a 3V supply. At V
= 2.7V, any byte can be
CC
accessed in less than 100 ns. With a typical power dissipation of only 18 mW at 5 MHz and V
= 3V, the AT27BV040
CC
consumes less than one fifth the power of a standard 5V
EPROM. Standby mo de supply curr ent is typically le ss
than 1 µA at 3V. The AT27BV 040 si mplifies system desig n
and stretches battery lifetime even further by eliminating
the need for power supply regulation.
The AT27BV040 is available in industry standard JEDECapproved one-time programmable (OTP) plastic PLCC,
TSOP, and VSOP packages. All devices feature two-line
control (CE
, OE) to give designers the flexibility to prevent
bus contention.
The AT27BV040 op eratin g with V
at 3.0V produces TTL
CC
level outputs that are compatible with standard TTL logic
devices operati ng at V
= 5.0V. 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 car d produc ts that are
pluggable in both 3-volt and 5-volt hosts.
Atmel’s AT27BV 040 h as a dditio nal f eatures to en sur e hig h
quality and efficient producti on use. The Rapi d™ Progra mming Algori thm reduc es the time require d to prog ram the
part and guarantees reliable programming. Programming
time is typically only 100 µs/byte. The Integrated Product
Identification Code electronically identifi es the device and
manufacturer. This feature is used by industry standard
programming eq uipme nt to sele ct the prop er program ming
algorithms and voltages. The AT27BV040 programs
exactly the same way as a standard 5V AT27C040 and
uses the same programming equipment.
Switching Considerations
Switching between active and standby conditions via the
Chip Enable pin may produ ce tra ns ien t vo ltag e ex cu rs i ons .
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 frequency,
low inherent inductance, ceramic 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 arrays, a 4.7 µF 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
AT27BV040
Page 3
Absolute Maximum Ratings*
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
AT27BV040
*NOTICE: Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent damage to the de vic e. T his is a stres s r ating o nly an d
functional opera tion of the device at these or any
(1)
(1)
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 reli abi li ty
VPP Supply Voltage with
Respect to Ground .......................................-2.0V to +14.0V
(1)
Note: 1. Minimum voltage is -0.6V dc which may undershoot to -2.0V for pulses of less than 20 ns. Maximum output pin voltage is
+ 0.75V dc which may be exceeded if certain precautions are observed (consult application notes) and which may
V
CC
overshoot to +7.0V for pulses of less than 20 ns.
Operating Modes
Mode \ Pin CE OE Ai V
(2)
Read
Output Disable
Standby
Rapid Program
PGM Verify
PGM Inhibit
(2)
(2)
(3)
(3)
(3)
Product Identification
Notes: 1 . X can be V
(3)(5)
IL
or VIH.
V
IL
XV
V
IH
V
IL
V
IL
IH
Ai X
XXV
XX XV
V
IH
Ai V
XVILAi V
V
IH
V
IL
V
IH
V
IL
XVPPV
A9 = V
(4)
H
A0 = VIH or VIL
A1 - A18 = V
IL
2. Read, output disable, and standby modes require, 2.7V ≤ VCC ≤ 3.6V, or 4.5V ≤ VCC ≤ 5.5V.
3. Refer to Programming C haracteristics. Programming mo des require V
CC
4. VH = 12.0 ± 0.5V.
5. Two identifier bytes may be selected. All Ai inputs are held low (VIL), except A9 which is set to VH and A0 which is toggle d low
(V
) to select the Manufacturer’s Identification byte and high (VIH) to select the Device Code byte.
IL
PP
(1)
PP
PP
XV
= 6.5V.
V
CC
(2)
V
CC
(2)
CC
(2)
CC
(3)
V
CC
(3)
V
CC
(3)
CC
(3)
CC
Outputs
D
OUT
High Z
High Z
D
IN
D
OUT
High Z
Identification Code
3
Page 4
DC and AC Operating Conditions for Read Operation
AT27BV040-12 AT27BV040-15
Operating Temperature
(Case)
Com. 0°C - 70°C 0°C - 70°C
Ind. -40°C - 85°C -40°C - 85°C
VCC Power Supply
2.7V to 3.6V 2.7V to 3.6V
5V ± 10% 5V ± 10%
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
= 4.5V to 5.5V
V
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 VPP = V
PP
(1)
V
Standby Current
CC
OUT
(CMOS), CE = V
I
SB1
I
(TTL), CE = 2.0 to VCC + 0.5V 100
SB2
VCC Active Current f = 5 MHz, I
= 3.0 to 3.6V -0.6 0.8 V
V
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
CC
V
= 2.7 to 3.6V -0.6 0.2 x V
CC
VCC = 3.0 to 3.6V 2.0 VCC + 0.5 V
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
Input Load Current VIN = 0V to V
Output Leakage Current V
(1)
V
Read/Standby Current VPP = V
PP
(1)
V
Standby Current
CC
OUT
I
(CMOS), CE = VCC ± 0.3V 100
SB1
I
(TTL), CE = 2.0 to VCC + 0.5V 1 mA
SB2
VCC Active Current f = 5 MHz, I
= 0V to V
CC
OUT
= 0V to V
CC
OUT
CC
CC
0.3V 20
CC
±
= 0 mA, CE = VIL, VCC = 3.6V 10 mA
CC
- 0.2 V
CC
- 0.1 V
CC
CC
CC
= 0 mA, CE = V
IL
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 µA2.4V
Notes: 1. VCC must be applied simultaneously with or before VPP, and removed simultaneously with or after VPP.
2. VPP may be connected directly to VCC, except during programming. The supply current would then be the sum of ICC and IPP.
±
1
±
5
10
CC
VCC + 0.5 V
±
1
±
5
10
30 mA
µ
A
µ
A
µ
A
µ
A
µ
A
V
µ
A
µ
A
µ
A
µ
A
4
AT27BV040
Page 5
AC Characteristics for Read Operation
VCC = 2.7V to 3.6V and 4.5V to 5.5V
Symbol Parameter Condition
t
ACC
t
CE
t
OE
t
DF
t
OH
(3)
(2)
(2)(3)
(4)(5)
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
occurred first
Output Hold from Address, CE or OE,
whichever occurred f irst
AT27BV040
AT27BV040-12 AT27BV040-15
UnitsMin Max Min Max
IL
IL
IL
00ns
120 150 ns
120 150 ns
50 60 ns
40 50 ns
AC Waveforms for Read Operation
(1)
Notes: 1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.
2. OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE.
may be delayed up to t
3. OE
- tOE after the address is valid without impact on t
ACC
ACC
.
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.
5
Page 6
Input Test Wavef orms and
Output Test Load
Measurement Levels
, tF < 20 ns (10% to 90%)
t
R
Note: CL = 100 pF including
jig capacitance.
Pin Capacitance
f = 1 MHz, T = 25°C
Symbol Ty p Max Units Conditions
C
IN
C
OUT
Note: 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
(1)
48pFV
812pFV
IN
OUT
= 0V
= 0V
6
AT27BV040
Page 7
AT27BV040
Programming Waveforms
(1)
Notes: 1. The Input Timing Reference is 0.8V for VIL and 2.0V for VIH.
2. tOE and t
are characteristics of the device but must be accommodated by the programmer.
DFP
3. When programming the AT27BV040 a 0.1 µF capacitor is required across VPP and ground to suppress spurious voltage
transients.
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 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) 40 mA
VPP Supply Current CE = V
A9 Product Identification Voltage 11.5 12.5 V
= VIL, V
IN
IH
IL
Limits
10
±
+ 0.7 V
CC
20 mA
UnitsMin Max
A
µ
7
Page 8
AC Programming Characteristics
TA = 25
±
5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V
Symbol Parameter Test Conditions
Limits
(1)
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
Input Rise and Fall Times:
Data Setup Time 2
(10% to 90%) 20 ns
Address Hold Time 0
Data Hold Time 2
OE High to Output Float Delay
(2)
VPP Setup Time 2
VCC Setup Time 2
CE Program Pulse Width
Data Valid from OE
(3)
(2)
Input Pulse Levels:
0.45V to 2.4V
Input Timing Reference Level:
0.8V to 2.0 V
Output Timing Reference Level:
0.8V to 2.0 V
VPP Pulse Rise Time During
Programming
2
0 130 ns
95 105
50 ns
Notes: 1. VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP.
2. This parameter is only sample d and i s not 1 00% te sted. O utput Float i s defi ned as the po int wh ere dat a is no longe r driv en—
see timing diagram.
±
µsec
3. Program Pulse width tolerance is 100
Atmel’s 27BV040 Integrated Product Identification Code
5%.
(1)
Pins
Codes
µ
µ
µ
µ
µ
µ
µ
µ
150 ns
Hex
DataA0 O7 O6 O5 O4 O3 O2 O1 O0
s
s
s
s
s
s
s
s
Manufacturer 000011110 1E
Device Type 100001011 0B
Note: 1. The AT27BV040 has the same Product Identification Code as the AT27C040. Both are programming compatible.
8
AT27BV040
Page 9
Rapid Programming Algorithm
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
tion/reprogramming loop is execu ted for ea ch 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 with out verificati on. Then a ve rifica-
is raised to 6.5V and VPP is
CC
AT27BV040
pulse. If the byte fails to verify after 10 pulses have been
applied, the part is c on sider e d f ail ed . A fter the b yte ver if ies
properly, the next address is selected until all have been
checked. V
bytes 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
Page 10
Ordering Information
I
(mA)
CC
t
ACC
(ns)
120 8 0.02 AT27BV040-12JC
150 8 0.02 AT27BV040-15JC
VCC = 3.6V
Ordering Code Package Operation RangeActive Standby
AT27BV040-12TC
AT27BV040-12VC
8 0.02 AT27BV040-12JI
AT27BV040-12TI
AT27BV040-12VI
AT27BV040-15TC
AT27BV040-15VC
8 0.02 AT27BV040-15JI
AT27BV040-15TI
AT27BV040-15VI
32J
32T
32V
32J
32T
32V
32J
32T
32V
32J
32T
32V
Commercial
(0°C to 70°C)
Industrial
(-40°C to 85°C)
Commercial
(0°C to 70°C)
Industrial
(-40°C to 85°C)
Package Type
32J 32-Lead, Plastic J-Leaded Chip Carrier (PLCC)
32T 32-Lead, Plastic Thin Small Outline Package (TSOP) (8 x 20 mm)
32V 32-Lead, Plastic Thin Small Outline Package (TSOP) (8 x 14 mm)
10
AT27BV040
Page 11
Packaging Information
AT27BV040
32J
, 32-Lead, Plastic J-Leaded Chip Carrier (PLCC)
Dimensions in Inches and (Millimeters)
JEDEC STANDARD MS-016 AE
.045(1.14) X 45˚
.032(.813)
.026(.660)
.050(1.27) TYP
PIN NO.1
IDENTIFY
.553(14.0)
.547(13.9)
.300(7.62) REF
.430(10.9)
.390(9.90)
AT CONTACT
POINTS
.453(11.5)
.447(11.4)
.495(12.6)
.485(12.3)
.025(.635) X 30˚ - 45˚
.595(15.1)
.585(14.9)
.022(.559) X 45˚ MAX (3X)
.012(.305)
.008(.203)
.530(13.5)
.490(12.4)
.021(.533)
.013(.330)
.030(.762)
.015(.381)
.095(2.41)
.060(1.52)
.140(3.56)
.120(3.05)
32T
, 32-Lead, Plastic Thin Small Outline Package
(TSOP)
Dimensions in Millimeters and (Inches)*
INDEX
MARK
0.50(.020)
BSC
0
REF
5
7.50(.295)
REF
8.20(.323)
7.80(.307)
0.15(.006)
0.05(.002)
18.5(.728)
18.3(.720)
0.25(.010)
0.15(.006)
0.70(.028)
0.50(.020)
20.2(.795)
19.8(.780)
1.20(.047) MAX
*Controlling dimension; millimeters
0.20(.008)
0.10(.004)
32V
, 32-Lead, Plastic Thin Small Outline Package
(VSOP)
Dimensions in Inches and (Millimeters)
JEDEC OUTLINE MO-142 BA
INDEX
MARK
0.50(.020)
BSC
0
REF
5
7.50(.295)
REF
8.10(.319)
7.90(.311)
0.15(.006)
0.05(.002)
12.5(.492)
12.3(.484)
0.25(.010)
0.15(.006)
0.70(.028)
0.50(.020)
14.2(.559)
13.8(.543)
1.20(.047) MAX
0.20(.008)
0.10(.004)
11
Page 12
Atmel Headquarters Atmel Operations
Corporate Headquarters
2325 Orchard Parkway
San Jose, CA 95131
TEL (408) 441- 0311
FAX (408) 487-2600
Europe
Atmel U.K., Ltd.
Coliseum Business Centre
Riverside Way
Camberley, Surrey GU15 3YL
England
TEL (44) 1276-686677
FAX (44) 1276-686697
Asia
Atmel Asia, Ltd.
Room 1219
Chinachem Golden Plaza
77 Mody Road
Tsimshatsui East
Kowloon, Hong Kong
TEL (852) 27219778
FAX (852) 27221369
Japan
Atmel Japan K.K.
Tonetsu Shinkawa Bldg., 9F
1-24-8 Shinka wa
Chuo-ku, Tokyo 104-0033
Japan
TEL (81) 3-3523-3551
FAX (81) 3-3523-7581
Atmel Colorado Springs
1150 E. Cheyenne Mtn. Blvd.
Colorado Springs, CO 80906
TEL (719) 576-3300
FAX (719) 540-1759
Atmel Rousset
Zone Indu strie lle
13106 Rousset Cedex, France
TEL (33) 4 42 53 60 00
FAX (33) 4 42 53 60 01
Fax-on-Demand
North America:
1-(800) 292-8635
International:
1-(408) 441-0732
e-mail
literature@atmel.com
Web Site
http://www.atmel.com
BBS
1-(408) 436-4309
© Atmel Corporation 1998.
Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s website. The Company assumes no responsibility for
any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without
notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are
not authorized for use as critical components in life support devices or systems.
®
Marks bearing
Ter ms and product names in this document may be trademarks of others.
and/or ™ are registered trademarks and trademarks of Atmel Corporation.
Printed on recycled paper.
0346D–10/98/xM
Loading...