AT27BV1024 - Complete

Features
• Fast read access time – 90ns
• Dual voltage range operation
•
•
•
•
•
•
•
•
– Unregulated battery power supply range, 2.7V to 3.6V, or
– Standard power supply range, 5V  10%
Pin compatible with JEDEC standard Atmel® AT27C1024
Low-power CMOS operation
– 20µA max standby (less than 1µA, typical) for VCC = 3.6V
– 36mW max active at 5MHz for VCC = 3.6V
JEDEC standard surface mount package
– 44-lead PLCC
High-reliability CMOS technology
– 2,000V ESD protection
– 200mA latchup immunity
Rapid programming algorithm – 100µs/word (typical)
CMOS- and TTL-compatible inputs and outputs
– JEDEC standard for LVTTL and LVBO
Integrated product identification code
Industrial temperature range
1.
Description
1Mb (64K x 16)
Unregulated
Battery Voltage,
High-speed,
One-time
Programmable,
Read-only Memory
Atmel AT27BV1024
The Atmel AT27BV1024 is a high-performance, low-power, low-voltage, 1,048,576-bit,
one-time programmable, read-only memory (OTP EPROM) organized as 64K by 16 bits. It
requires only one supply in the range of 2.7V to 3.6V in normal read mode operation. The
x16 organization makes this part ideal for portable and handheld 16- and 32-bit microprocessor-based systems using either regulated or unregulated battery power.
The Atmel innovative design techniques provide fast speeds that rival 5V parts, while keeping the low power consumption of a 3V supply. At VCC = 2.7V, any word can be accessed in
less than 90ns. With a typical power dissipation of only 18mW at 5MHz and VCC = 3V, the
AT27BV1024 consumes less than one-fifth the power of a standard, 5V EPROM.
Standby mode supply current is typically less than 1µA at 3V. The AT27BV1024 simplifies
system design and stretches battery lifetime even further by eliminating the need for power
supply regulation.
The AT27BV1024 is available in an industry-standard, JEDEC-approved, one-time programmable (OTP) PLCC package. All devices feature two-line control (CE, OE) to give
designers the flexibility to prevent bus contention.
The AT27BV1024 operating with VCC at 3.0V produces TTL-level outputs that are compatible with standard TTL logic devices operating at VCC = 5.0V. At VCC = 2.7V, the part is
compatible with JEDEC-approved, low-voltage battery operation (LVBO) interface specifications. The device is also capable of standard, 5V operation making it ideally suited for dual
supply range systems or card products that are pluggable in both 3V and 5V hosts.
The AT27BV1024 has additional features to ensure high quality and efficient
production use. The rapid programming algorithm reduces the time required to program the
part and guarantees reliable programming. Programming time is typically only 100 µs/word.
The integrated product identification code electronically identifies the device and
0631F–EPROM–4/11
manufacturer. This feature is used by industry-standard programming equipment to select the proper programming
algorithms and voltages. The AT27BV1024 programs in exactly the same way as a standard, 5V Atmel AT27C1024, and
uses the same programming equipment.
Pin configurations
Addresses
O0 - O15
Outputs
CE
Chip enable
OE
Output enable
PGM
Program strobe
NC
No connect
Note:
Both GND pins must be connected.
O13
O14
O15
CE
VPP
NC
VCC
PGM
NC
A15
A14
A0 - A15
44-lead PLCC
Top view
O12
O11
O10
O9
O8
GND
NC
O7
O6
O5
O4
6
5
4
3
2
1
44
43
42
41
40
Function
7
8
9
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
31
30
29
18
19
20
21
22
23
24
25
26
27
28
Pin Name
A13
A12
A11
A10
A9
GND
NC
A8
A7
A6
A5
O3
O2
O1
O0
OE
NC
A0
A1
A2
A3
A4
2.
Note:
3.
PLCC Package Pins 1 and 23 are “don’t connect.”
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 datasheet limits, resulting in device non-conformance.
At a minimum, a 0.1µF, high-frequency, low inherent inductance, ceramic capacitor should be utilized for each device. This
capacitor should be connected between the VCC and ground terminals of the device, as close to the device as possible.
Additionally, to stabilize the supply voltage level on printed circuit boards with large EPROM arrays, a 4.7µF bulk electrolytic
capacitor should be utilized, again connected between the VCC and ground terminals. This capacitor should be positioned as
close as possible to the point where the power supply is connected to the array.
Figure 3-1.
2
Block diagram
Atmel AT27BV1024
0631F–EPROM–4/11
Atmel AT27BV1024
4.
Absolute maximum ratings*
*NOTICE:
Temperature under bias . . . . . . . . . . . . . -55C to +125C
Storage temperature . . . . . . . . . . . . . . . . -65C to +150C
Voltage on any pin with
respect to ground . . . . . . . . . . . . . . . . . . . -2.0V to +7.0V(1)
Stresses beyond those listed under “Absolute
maximum ratings” may cause permanent damage to
the device. 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.
Voltage on A9 with
respect to ground . . . . . . . . . . . . . . . . . -2.0V to +14.0V(1)
VPP supply voltage with
respect to ground . . . . . . . . . . . . . . . . . . -2.0V to +14.0V(1)
Note:
5.
1. Minimum voltage is -0.6V DC ,which may undershoot to -2.0V for pulses of less than 20ns. Maximum output pin voltage is
VCC + 0.75V DC, which may overshoot to +7.0V for pulses of less than 20ns.
AC and DC characteristics
Table 5-1.
Operating modes
Mode/Pin
CE
(2)
Read
(2)
Output disable
(2)
Standby
Rapid program(3)
PGM
Ai
VPP
VCC
Outputs
VIL
VIL
X
(1)
Ai
X
VCC
DOUT
X
VIH
X
X
X
VCC
High Z
(5)
VIH
X
X
X
X
VCC
High Z
VIL
VIH
VIL
Ai
VPP
VCC
DIN
(3)
VIL
VIL
VIH
Ai
VPP
VCC
DOUT
(3)
VIH
X
X
X
VPP
VCC
High Z
VCC
VCC
Identification code
PGM verify
PGM inhibit
Product identification(3)(5)
Notes:
OE
VH(4)
VIL
VIL
X
A9 =
A0 = VIH or VIL
A1 - A15 = VIL
1. X can be VIL or VIH.
2. Read, output disable, and standby modes require 2.7V  VCC  3.6V or 4.5V  VCC  5.5V.
3. Refer to programming characteristics. Programming modes require VCC = 6.5V.
4. VH = 12.0 ± 0.5V.
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 (VIL) to select the manufacturer’s identification word and high (VIH) to select the device code word.
Table 5-2.
DC and AC operating conditions for read oepration
Atmel AT27BV1024-90
Industrial operating temperature (case)
-40C - 85C
2.7V to 3.6V
VCC power supply
5V  10%
3
0631F–EPROM–4/11
Table 5-3.
Symbol
DC and operating characteristics for read operation
Parameter
Condition
Min
Max
Units
VCC = 2.7V to 3.6V
ILI
ILO
IPP1
(2)
Input load current
VIN = 0V to VCC
1
µA
Output leakage current
VOUT = 0V to VCC
5
µA
VPP(1)
VPP = VCC
10
µA
ISB1 (CMOS), CE = VCC ± 0.3V
20
µA
ISB2 (TTL), CE = 2.0 to VCC + 0.5V
100
µA
8
mA
read/standby current
ISB
VCC(1) standby current
ICC
VCC active current
VIL
Input low voltage
VIH
Input high voltage
VOL
VOH
Output low voltage
Output high voltage
f = 5MHz, IOUT = 0mA, CE = VIL, VCC = 3.6V
VCC = 3.0 to 3.6V
-0.6
0.8
V
VCC = 2.7 to 3.6V
-0.6
0.2 x VCC
V
VCC = 3.0 to 3.6V
2.0
VCC + 0.5
V
VCC = 2.7 to 3.6V
0.7 x VCC
VCC + 0.5
V
IOL = 2.0mA
0.4
V
IOL = 100µA
0.2
V
IOL = 20µA
0.1
V
IOH = -2.0mA
2.4
V
IOH = -100µA
VCC - 0.2
V
IOH = -20µA
VCC - 0.1
V
VCC = 4.5V to 5.5V
ILI
ILO
IPP1
(2)
Input load current
VIN = 0V to VCC
1
µA
Output leakage current
VOUT = 0V to VCC
5
µA
VPP(1)
VPP = VCC
10
µA
ISB1 (CMOS), CE = VCC  0.3V
100
µA
ISB2 (TTL), CE = 2.0 to VCC + 0.5V
1
mA
f = 5MHz, IOUT = 0mA, CE = VIL
30
mA
read/standby current
ISB
VCC(1) standby current
ICC
VCC active current
VIL
Input low voltage
-0.6
0.8
V
VIH
Input high voltage
2.0
VCC + 0.5
V
VOL
Output low voltage
IOL = 2.1mA
0.4
V
VOH
Output high voltage
IOH = -400µA
Notes:
2.4
V
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.
4
Atmel AT27BV1024
0631F–EPROM–4/11
Atmel AT27BV1024
Table 5-4.
AC characteristics for read operation
Atmel AT27BV1024-90
Symbol
Parameter
Condition
tACC(3)
Address to output delay
tCE(2)
tOE
(2)(3)
Max
Unit
CE = OE
= VIL
90
ns
CE to output delay
OE = VIL
90
ns
OE to output delay
CE = VIL
30
ns
30
ns
tDF(4)(5)
OE or CE High to output float,
whichever occurred first
tOH
Output hold from address, CE or OE,
whichever occurred first
Figure 5-1.
Note:
Min
0
ns
AC waveforms for read operation(1)
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.
3. OE may be delayed up to tACC - tOE after the address is valid without impact on tACC.
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.
6. When reading an Atmel AT27BV1024, a 0.1µF capacitor is required across VCC and ground to suppress spurious voltage
transients.
Figure 5-2.
Input test waveforms and measurement levels
tR, tF < 20ns (10% to 90%)
5
0631F–EPROM–4/11
Figure 5-3.
Output test load
Note: CL = 100pF including
jig capacitance.
Table 5-5.
Pin capacitance
f = 1MHz T = 25°C (1)
Symbol
Typ
Max
Units
Conditions
CIN
4
10
pF
VIN = 0V
COUT
8
12
pF
VOUT = 0V
Note:
1. Typical values for nominal supply voltage. This parameter is only sampled, and is not 100% tested.
Figure 5-4.
Note:
Programming waveforms(1)
1. The input timing reference is 0.8V for VIL and 2.0V for VIH.
2. tOE and tDFP are characteristics of the device, but must be accommodated by the programmer.
3. When programming the Atmel AT27BV1024 a 0.1µF capacitor is required across VPP and ground to suppress spurious
voltage transients.
6
Atmel AT27BV1024
0631F–EPROM–4/11
Atmel AT27BV1024
Table 5-6.
DC programming characteristics
TA = 25 ± 5° C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V
Limits
Symbol
Parameter
Test conditions
ILI
Input load current
VIN = VIL, VIH
VIL
Input low level
VIH
Input high level
VOL
Output low voltage
IOL = 2.1mA
VOH
Output high voltage
IOH = -400µA
ICC2
VCC supply current (program and verify)
IPP2
VPP supply current
VID
A9 product identification voltage
Table 5-7.
Min
Max
Units
10
µA
-0.6
0.8
V
2.0
VCC + 0.1
V
0.4
V
2.4
V
50
mA
30
mA
12.5
V
CE = PGM = VIL
11.5
AC programming characteristics
TA = 25 ± 5° C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V
Limits
(1)
Symbol
Parameter
Test conditions
tAS
Address setup time
tCES
CE setup time
tOES
OE setup time
tDS
Data setup time
tAH
Address hold time
tDH
Data hold time
Input rise and fall times:
(10% to 90%) 20ns
Input pulse levels:
0.45V to 2.4V
tDFP
OE high to output float delay
tVPS
VPP setup time
tVCS
VCC setup time
(2)
Output timing reference level:
0.8V to 2.0V
(3)
PGM program pulse width
tOE
Data valid from OE
tPRT
VPP pulse rise time during programming
Max
Units
2
µs
2
µs
2
µs
2
µs
0
µs
2
µs
0
Input timing reference level:
0.8V to 2.0V
tPW
Notes:
Min
130
ns
2
µs
2
µs
95
105
µs
150
ns
50
ns
1. VCC must be applied simultaneously with or before VPP and removed simultaneously with or after VPP.
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 100µsec 5%.
Table 5-8.
The Atmel AT27BV1024 integrated product identification code(1)
Pins
A0
O15O8
O7
O6
O5
O4
O3
O2
O1
O0
Hex
data
Manufacturer
0
0
0
0
0
1
1
1
1
0
001E
Device type
1
0
1
1
1
1
0
0
0
1
00F1
Codes
Note:
1. The Atmel AT27BV1024 has the same product identification code as the Atmel AT27C1024. Both are programming compatible
7
0631F–EPROM–4/11
6.
Rapid programming algorithm
A 100µs PGM pulse width is used to program. The address is set to the first location. VCC is raised to 6.5V and VPP is raised
to 13.0V. Each address is first programmed with one 100µs PGM pulse without verification. Then a
verification/reprogramming loop is executed for each address. In the event a word fails to pass verification, up to 10
successive 100µs pulses are applied with a verification after each 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. VPP is then lowered to 5.0V and VCC to 5.0V. All words are read again and compared with the original data to
determine if the device passes or fails.
Figure 6-1.
8
Rapid programming algorithm
Atmel AT27BV1024
0631F–EPROM–4/11
Atmel AT27BV1024
7.
Ordering information
Green package (Pb/hailde-free)
ICC (mA)
tACC
(ns)
Active
Standby
Atmel ordering code
Lead finish
Package
Operation range
90
8
0.02
AT27BV1024-90JU
Matte tin
44J
Industrial
(-40C to 85C)
Package type
44J
44-lead, plastic, J-leaded chip carrier (PLCC)
9
0631F–EPROM–4/11
8.
Packaging Information
44J – PLCC
1.14(0.045) X 45°
PIN NO. 1
1.14(0.045) X 45°
0.318(0.0125)
0.191(0.0075)
IDENTIFIER
E1
E
D2/E2
B1
B
e
A2
D1
A1
D
A
0.51(0.020)MAX
45° MAX (3X)
COMMON DIMENSIONS
(Unit of Measure = mm)
Notes:
1. This package conforms to JEDEC reference MS-018, Variation AC
2. Dimensions D1 and E1 do not include mold protrusion.
Allowable protrusion is .010"(0.254mm) per side. Dimension D1
and E1 include mold mismatch and are measured at the extreme
material condition at the upper or lower parting line.
3. Lead coplanarity is 0.004" (0.102mm) maximum
SYMBOL
MIN
NOM
MAX
A
4.191
–
4.572
A1
2.286
–
3.048
A2
0.508
–
–
D
17.399
–
17.653
D1
16.510
–
16.662
E
17.399
–
17.653
E1
16.510
–
16.662
D2/E2
14.986
–
16.002
B
0.660
–
0.813
B1
0.330
–
0.533
e
NOTE
Note 2
Note 2
1.270 TYP
10/04/01
Package Drawing Contact:
[email protected]
10
TITLE
44J, 44-lead, Plastic J-leaded chip carrier (PLCC)
DRAWING NO.
44J
REV.
B
Atmel AT27BV1024
0631F–EPROM–4/11
Atmel AT27BV1024
9.
Revision history
Doc. rev.
Date
0631F
04/2011
0631E
12/2007
Comments
Remove VSOP package
Add lead finish to ordering information
Change 120ns to 90ns
11
0631F–EPROM–4/11
Atmel Corporation
2325 Orchard Parkway
San Jose, CA 95131
USA
Tel: (+1) (408) 441-0311
Fax: (+1) (408) 487-2600
www.atmel.com
Atmel Asia Limited
Unit 01-5 & 16, 19F
BEA Tower, Millennium City 5
418 Kwun Tong Road
Kwun Tong, Kowloon
HONG KONG
Tel: (+852) 2245-6100
Fax: (+852) 2722-1369
Atmel Munich GmbH
Business Campus
Parkring 4
D-85748 Garching b. Munich
GERMANY
Tel: (+49) 89-31970-0
Fax: (+49) 89-3194621
Atmel Japan
9F, Tonetsu Shinkawa Bldg.
1-24-8 Shinkawa
Chuo-ku, Tokyo 104-0033
JAPAN
Tel: (+81) (3) 3523-3551
Fax: (+81) (3) 3523-7581
© 2011 Atmel Corporation. All rights reserved. / Rev.: 0631F–EPROM–4/11
Atmel®, logo and combinations thereof, and others are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others.
Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel
products. EXCEPT AS SET FORTH IN THE ATMEL TERMS AND CONDITIONS OF SALES LOCATED ON THE ATMEL WEBSITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY
RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS AND PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF THE USE OR INABILITY TO USE
THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to
make changes to specifications and products descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, Atmel products are not suitable for, and shall not
be used in, automotive applications. Atmel products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life.
Similar pages