Page 1
Features
•
Fast Read Access Time - 70 ns
•
Dual Voltage Range Operation
– Low Voltage Power Supply Range, 3. 0V to 3.6V
or Standard 5V ± 10% Supply Range
•
Compatible with JEDEC Standard AT27C512R
•
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
– 28-Lead 330-mil SOIC
– 28-Lead TSOP
•
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
•
Integrated Product Identification Code
•
Commercial and Industrial Temperature Ranges
Description
The AT27LV512A is a high performance, low power, low voltage 524,288-bit one-time
programmable re ad only memory (OTP EP ROM) organized as 64 K by 8 bits. It
requires only one suppl y in t he ran ge of 3. 0V to 3. 6V in norma l rea d mode o perat ion,
making it ideal for fast, portable systems using battery power.
(continued)
512K (64K x 8)
Low Voltage
OTP EPROM
AT27LV512A
Pin Configurations
Pin Name Function
A0 - A15 Addresses
O0 - O7 Outputs
CE
OE
/VPP
NC No Connect
PLCC Top View
A7
432
5
A6
6
A5
7
A4
8
A3
9
A2
10
A1
11
A0
12
NC
13
O0
14151617181920
O1
Note: PLCC Package Pins 1 and 17
are DON’T CONNECT.
Chip Enable
Output Enable/
Program Supply
A12
A15NCVCC
1
323130
O2
O3O4O5
NC
GND
A14
A13
29
28
27
26
25
24
23
22
21
A8
A9
A11
NC
OE/VPP
A10
CE
O7
O6
OE/VPP
A11
A13
A14
VCC
A15
A12
SOIC Top View
A15
A12
GND
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
VCC
27
A14
26
A13
25
A8
24
A9
23
A11
22
OE/VPP
21
A10
20
CE
19
O7
18
O6
17
O5
16
O4
15
O3
TSOP Top View
Type 1
1
2
3
A9
4
A8
5
6
7
8
9
10
A7
11
A6
12
A5
13
A4
14
A3
28
A10
27
CE
26
O7
25
O6
24
O5
23
O4
22
O3
21
GND
20
O2
19
O1
18
O0
17
A0
16
A1
15
A2
Rev. 0607B–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 3.3V supply. At V
= 3.0V, any byte c an be
CC
accessed in less than 70 ns. With a typical power dissipation of only 18 mW at 5 MHz and V
= 3.3V, the
CC
AT27LV512A consumes less than one fifth the power of a
standard 5V EPROM.
Standby mode supply current is typically less than 1 µA at
3.3V.
The AT27LV512A is availa ble in in dus try stan dard J EDE C-
approved one-time programmable (OTP) plastic PLCC,
SOIC, and TSOP pac kages. All devices featu re two-line
control (CE
, OE) to give designers the flexibility to prevent
bus contention.
The AT27LV512A operating with V
at 3.0V produces TTL
CC
level outputs that are compatible with standard TTL logic
devices operating at V
= 5.0V. The device is also capa-
CC
ble 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 AT27LV512A has additional features to ensure
high quality and eff icie nt produc tion use. Th e Rapid™ Programming Algorithm reduces the time required to program
the part and guarantees reliable programming. Program-
ming time is typically only 100 µs/byte. The Integrated
Product Identific ation Code electr onically identifi es the
device and manufacturer. This feature is used by i ndustry
standard programming equipment to sele ct the prope r programming algori thms an d voltag es. The AT 27LV51 2A programs exactly the same way as a standard 5V AT27C512R
and uses the same programming equipment.
System 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
AT27LV512A
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
AT27LV512A
*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 +7.0 volts for pulses of less than 20 ns.
Operating Modes
Mode \ Pin CE OE/V
(2)
Read
Output Disable
Standby
Rapid Program
PGM Inhibit
(2)
(2)
(3)
(3)
Product Identification
Notes: 1 . X can be V
(3)(5)
or VIH.
IL
V
IL
V
IL
V
IH
V
IL
V
IH
V
IL
2. Read, output disable, and standby modes require, 3.0V ≤ VCC ≤ 3.6V, or 4.5V ≤ VCC ≤ 5.5V.
3. Refer to Programming C haracteri stics. Programming modes require V
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
V
IL
V
IH
XXV
V
PP
V
PP
V
IL
Ai V
Ai V
(1)
X
Ai V
XV
A9 = V
(4)
H
A0 = VIH or VIL
A1 - A15 = V
= 6.5V.
CC
IL
CC
CC
V
CC
CC
CC
CC
V
CC
Outputs
(2)
(2)
(2)
(3)
(3)
(3)
D
OUT
High Z
High Z
D
IN
High Z
Identification Code
3
Page 4
DC and AC Operating Conditions for Read Operation
AT27LV512A
-70 -90 -12 -15
Operating Temperature
(Case)
Com. 0°C - 70°C 0°C - 70°C 0°C - 70°C 0°C - 70°C
Ind. -40°C - 85°C -40°C - 85°C -40°C - 85°C -40°C - 85°C
3.0V to 3.6V 3.0V to 3.6V 3.0V to 3.6V 3.0V to 3.6V
Power Supply
V
CC
5V ± 10% 5V ± 10% 5V ± 10% 5V ± 10%
DC and Operating Characteristics for Read Operation
Symbol Parameter Condition Min Max Units
VCC = 3.0V to 3.6V
I
LI
I
LO
(2)
I
PP1
I
SB
I
CC
V
IL
V
IH
V
OL
V
OH
V
= 4.5V to 5.5V
CC
I
LI
I
LO
(2)
I
PP1
I
SB
I
CC
V
IL
V
IH
V
OL
V
OH
Notes: 1. VCC must be applied simultaneously with or before OE/VPP, and removed simultaneously with or after OE/VPP.
Input Load Current VIN = 0V to V
Output Leakage Current V
(1)
V
Read/Standby Current VPP = V
PP
(1)
V
Standby Current
CC
= 0V to V
OUT
CC
I
(CMOS), CE = V
SB1
I
(TTL), CE = 2.0 to VCC + 0.5V 100 µA
SB2
VCC Active Current f = 5 MHz, I
CC
CC
CC
= 0 mA, CE = V
OUT
0.3V 20 µA
±
IL
±1 µA
±5 µA
10 µA
8mA
Input Low Voltage -0.6 0.8 V
Input High Voltage 2.0 VCC + 0.5 V
Output Low Voltage IOL = 2.0 mA 0.4 V
Output High Voltage IOH = -2.0 mA 2.4 V
Input Load Current VIN = 0V to V
Output Leakage Current V
(1)
V
Read/Standby Current VPP = V
PP
(1)
V
Standby Current
CC
= 0V to V
OUT
CC
I
(CMOS), CE = VCC ± 0.3V 100 µA
SB1
I
(TTL), CE = 2.0 to VCC + 0.5V 1 mA
SB2
VCC Active Current f = 5 MHz, I
CC
CC
= 0 mA, CE = V
OUT
IL
±1 µA
±5 µA
10 µA
20 mA
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
2. OE/VPP may be con nected di rect ly to VCC, except du ring progr a mming. Th e su pply curre nt w ould th en be th e sum o f ICC and
.
I
PP
4
AT27LV512A
Page 5
AC Characteristics for Read Operation
VCC = 3.0V to 3.6V and 4.5V to 5.5V
AT27LV512A
AT27LV512A
-70 -90 -12 -15
(3)
t
t
t
t
ACC
CE
OE
DF
(2)
(2)(3)
(4)(5)
Address to Output Delay CE = OE/VPP = V
CE to Output Delay OE/VPP = V
OE/VPP to Output Delay CE = V
IL
OE/VPP or CE High to
Output Float, whichever
occurred first
Output Hold from Address,
t
OH
CE
or OE/VPP, whichever
occurred first
AC Waveforms for Read Operation
Min Max Min Max Min Max Min Max
IL
IL
70 90 1 20 150 ns
70 90 120 150 ns
UnitsSymbol Parameter Condition
40 50 50 60 ns
35 40 40 50 ns
0000ns
(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/VPP may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE.
/VPP 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 Typ 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)
46pFV
812pFV
IN
OUT
= 0V
= 0V
6
AT27LV512A
Page 7
AT27LV512A
Programming Waveforms
(1)
Notes: 1. The Input Timing Reference is 0.8V for VIL and 2.0V for VIH.
2. t
OE
and t
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, OE/VPP = 13.0 ± 0.25V
Symbol Parameter T est Condit ions
I
V
V
V
V
I
I
V
LI
IL
IH
OL
OH
CC2
PP2
ID
Input Load Current VIN = VIL, V
IH
Input Low Level -0.6 0.8 V
Input High Level 2.0 VCC + 0.5 V
Output Low Voltage I
Output High Voltage I
= 2.1 mA 0.4 V
OL
= -400 µA 2.4 V
OH
VCC Supply Current (Program and Verify) 25 mA
OE/VPP Current CE = V
IL
A9 Product Identification Voltage 11.5 12.5 V
Limits
UnitsMin Max
10 µA
25 mA
7
Page 8
AC Programming Characteristics
TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, OE/VPP = 13.0 ± 0.25V
Symbol Parameter Test Conditions
Limits
(1)
UnitsMin Max
t
t
t
t
t
t
t
t
t
t
t
t
AS
OES
OEH
DS
AH
DH
DFP
VCS
PW
DV
VR
PRT
Address Setup Time
OE/VPP Setup Time 2
OE/VPP Hold Time 2
Data Setup Time 2
Address Hold Time 0
Data Hold Time 2
CE High to Output Float Delay
(2)
VCC Setup Time 2
CE Program Pulse Width
Data Valid from CE
(3)
(2)
OE/VPP Recovery Time 2
Input Rise and Fall Times:
(10% to 90%) 20 ns
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
OE/VPP Pulse Rise Time During
Programming
2
0 130 ns
95 105
50 ns
Notes: 1. VCC must be applied simultaneously or before OE/VPP and removed simultaneously or after OE/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.
3. Program Pulse width tolerance is 100
Atmel’s 27LV512A Integrated Product Identification Code
µsec
±
5%.
(1)
µ
s
µ
s
µ
s
µ
s
µ
s
µ
s
µ
s
µ
s
1
µ
s
µ
s
Pins
Codes
Hex
DataA0 O7 O6 O5 O4 O3 O2 O1 O0
Manufacturer 0000111101E
Device Type 1000001010D
Note: 1. The AT27LV512A has the same Product Identification Code as the AT27C512R. Both are programming compatible.
8
AT27LV512A
Page 9
Rapid Programming Algorithm
A 100 µs CE pulse width is used to program. The address
is set to the first lo ca tio n. V
is raised to 13.0V. Each address is first pr ogrammed with
one 100 µs CE
tion / reprogrammi ng lo op is ex ecuted fo r ea ch a ddress . In
the event a byte fails to pass verification, up to 10 successive 100 µs pulses are applied with a verification after each
pulse without verification. Then a verifica-
is raised to 6.5V and OE/V
CC
PP
AT27LV512A
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. OE
bytes are read again and compared with the original data to
determine if the device passes or fails.
/VPP is then lowered to VIL and VCC to 5.0V. All
9
Page 10
Ordering Information
I
t
ACC
(ns)
70 8 0.02 AT27LV512A-70JC
90 8 0.02 AT27LV512A-90JC
120 8 0.02 AT27LV512A-12JC
150 8 0.02 AT27LV512A-15JC
(mA)
CC
Ordering Code Package Operation RangeActive Standby
AT27LV512A-70RC
AT27LV512A-70TC
8 0.02 AT27LV512A-70JI
AT27LV512A-70RI
AT27LV512A-70TI
AT27LV512A-90RC
AT27LV512A-90TC
8 0.02 AT27LV512A-90JI
AT27LV512A-90RI
AT27LV512A-90TI
AT27LV512A-12RC
AT27LV512A-12TC
8 0.02 AT27LV512A-12JI
AT27LV512A-12RI
AT27LV512A-12TI
AT27LV512A-15RC
AT27LV512A-15TC
8 0.02 AT27LV512A-15JI
AT27LV512A-15RI
AT27LV512A-15TI
32J
28R
28T
32J
28R
28T
32J
28R
28T
32J
28R
28T
32J
28R
28T
32J
28R
28T
32J
28R
28T
32J
28R
28T
Commercial
(0°C to 70°C)
Industrial
(-40°C to 85°C)
Commercial
(0°C to 70°C)
Industrial
(-40°C to 85°C)
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)
28R 28-Lead, 0.330" Wide, Plastic Gull Wing Small Outline (SOIC)
28T 28-Lead, Thin Small Outline Package (TSOP)
10
AT27LV512A
Page 11
Packaging Information
AT27LV512A
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)
.453(11.5)
.447(11.4)
.495(12.6)
.485(12.3)
.025(.635) X 30˚ - 45˚
.595(15.1)
.585(14.9)
AT CONTACT
POINTS
.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)
28R
, 28-Lead, 0.330" Wide, Plastic Gull Wing Small
Outline (SOIC)
Dimensions in Inches and (Millimeters)
28T
, 28-Lead, Plastic Thin Small Outline Package
(TSOP)
Dimensions in Millimeters and (Inches)*
INDEX
MARK
AREA
0.55 (0.022)
BSC
0
REF
5
7.15 (0.281)
REF
8.10 (0.319)
7.90 (0.311)
0.20 (0.008)
0.10 (0.004)
0.70 (0.028)
0.30 (0.012)
11.9 (0.469)
11.7 (0.461)
0.27 (0.011)
0.18 (0.007)
13.7 (0.539)
13.1 (0.516)
1.25 (0.049)
1.05 (0.041)
0.20 (0.008)
0.15 (0.006)
*Controlling dimension: millimeters
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
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Camberley, Surrey GU15 3YL
England
TEL (44) 1276-686677
FAX (44) 1276-686697
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Room 1219
Chinachem Golden Plaza
77 Mody Road
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TEL (852) 27219778
FAX (852) 27221369
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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.
0607B–10/98/xM
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