ATMEL AT27BV4096-12JC 4 megabit 256k x 16 unregulated battery-voltage high speed otp cmos eprom Datasheet

AT27BV4096
Features
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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
Pin Compatible with JEDEC Standard AT27C4096
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 Surface Mount Packages
44-Lead PLCC
40-Lead TSOP (10 x 14mm)
High Reliability CMOS Technology
2,000V ESD Protection
200 mA Latchup Immunity
Rapid Programming algorithm - 100 µs/word (typical)
CMOS and TTL Compatible Inputs and Outputs
JEDEC Standard for LVTTL and LVBO
Integrated Product Identification Code
Commercial and Industrial Temperature Ranges
Description
The AT27BV4096 is a high performance, low power, low voltage 4,194,304 bit onetime programmable read only memory (OTP EPROM) organized as 256K by 16 bits.
It requires only one supply in the range of 2.7V to 3.6V in normal read mode operation. The by-16 organization makes this part ideal for portable and handheld 16 and
32 bit microprocessor based systems using either regulated or unregulated battery
power.
(continued)
4 Megabit
(256K x 16)
Unregulated
Battery-Voltage
High Speed
OTP
CMOS EPROM
Pin Configurations
Pin Name
Function
A0 - A17
Addresses
O0 - O15
Outputs
CE
Chip Enable
OE
Output Enable
NC
No Connect
AT27BV4096
Note: Both GND pins must be
connected.
PLCC Top View
Note:
1. PLCC package pins 1 and 23
are DON’T CONNECT.
TSOP Top View
Type 1
0640A
3-63
Description (Continued)
System Considerations
Atmel’s 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 120 ns. With a typical power dissipation of only 18 mW at 5 MHz and VCC = 3 V , t h e
AT27BV4096 consumes less than one fifth the power of a
standard 5V EPROM.
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 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 4.7 µF 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.
Standby mode supply current is typically less than 1 µA at
3V. The AT27BV4096 simplifies system design and
stretches battery lifetime even further by eliminating the
need for power supply regulation.
The AT27BV4096 is available in industry standard
JEDEC-approved 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 AT27BV4096 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 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 AT27BV4096 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 manufacturer. This feature is used by industry
standard programming equipment to select the proper
programming algorithms and voltages. The AT27BV4096
programs exactly the same way as a standard 5V
AT27C4096 and uses the same programming equipment.
3-64
AT27BV4096
AT27BV4096
Absolute Maximum Ratings*
Block Diagram
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)
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)
*NOTICE: 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.
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 VCC + 0.75V dc which may overshoot
to +7.0V for pulses of less than 20 ns.
Operating Modes
CE
Mode \ Pin
Read (2)
VIL
Output Disable (2)
X
OE
VIL
VIH
Ai
VPP
Ai
(1)
X
X
X
(5)
VCC
Outputs
VCC
(2)
DOUT
VCC
(2)
High Z
VCC
(2)
High Z
Standby (2)
VIH
X
X
X
Rapid Program (3)
VIL
VIH
Ai
VPP
VCC (3)
VPP
VCC
(3)
DOUT
VPP
VCC
(3)
High Z
VCC
VCC (3)
PGM Verify (3)
PGM Inhibit
(3)
VIH
VIH
VIL
Ai
VIH
X
DIN
(4)
Product Identification (3, 5)
VIL
VIL
A9 = VH
A0 = VIH or VIL
A1 - A17 = VIL
Notes: 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.
Identification
Code
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.
3-65
DC and AC Operating Conditions for Read Operation
AT27BV4096
Operating
Temperature (Case)
-12
0°C - 70°C
-15
0°C - 70°C
-40°C - 85°C
-40°C - 85°C
2.7V - 3.6V
2.7V - 3.6V
5V ± 10%
5V ± 10%
Com.
Ind.
VCC Power Supply
= Preliminary Information
DC and Operating Characteristics for Read Operation
Symbol
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 = VCC
10
µA
ISB1 (CMOS), CE = VCC ± 0.3V
20
µA
ISB2 (TTL), CE = 2.0 to VCC + 0.5V
100
µA
8
mA
VPP
(1)
Read/Standby Current
VCC (1) Standby Current
ISB
ICC
VCC Active Current
VIL
Input Low Voltage
VIH
Input High Voltage
VOL
Output Low Voltage
VOH
Output High Voltage
f = 5 MHz, IOUT = 0 mA, 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
0.7 x VCC VCC + 0.5
V
VCC = 2.7 to 3.6V
IOL = 2.0 mA
0.4
V
IOL = 100 µA
0.2
V
IOL = 20 µA
0.1
V
IOH = -2.0 mA
2.4
V
IOH = -100 µA
VCC - 0.2
V
IOH = -20 µA
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 = VCC
10
µA
ISB1 (CMOS), CE = VCC ± 0.3V
100
µA
ISB2 (TTL), CE = 2.0 to VCC + 0.5V
1
mA
f = 5 MHz, IOUT = 0 mA, CE = VIL
40
mA
VPP
(1)
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 = 2.1 mA
0.4
V
VOH
Output High Voltage
IOH = -400 µA
Notes: 1. VCC must be applied simultaneously with or before
VPP, and removed simultaneously with or after
VPP.
3-66
AT27BV4096
2.4
V
2. VPP may be connected directly to VCC, except during programming. The supply current would then be the sum of ICC
and IPP.
AT27BV4096
AC Characteristics for Read Operation (VCC = 2.7V to 3.6V and 4.5V to 5.5V)
AT27BV4096
-12
Symbol
Parameter
Condition
tACC (3)
Address to
Output Delay
CE = OE
= VIL
tCE (2)
Min
-15
Max
Units
120
150
ns
Max
Min
CE to Output Delay
OE = VIL
120
150
ns
tOE
(2, 3)
OE to Output Delay
CE = VIL
35
50
ns
tDF
(4, 5)
OE or CE High to Output Float, whichever occurred first
30
40
ns
tOH
Output Hold from Address, CE or OE,
whichever occurred first
0
Notes: 2, 3, 4, 5. - see AC Waveforms for Read Operation.
AC Waveforms for Read Operation
0
ns
= Preliminary Information
(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.
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 a 27BV4096, a 0.1 µF capacitor is required
across VCC and ground to supress spurious voltage transients.
3-67
Input Test Waveforms and Measurement Levels
Output Test Load
tR, tF < 20 ns (10% to 90%)
Note: CL = 100 pF including
jig capacitance.
Pin Capacitance (f = 1 MHz T = 25°C) (1)
Typ
Max
Units
CIN
4
10
pF
VIN = 0V
COUT
8
12
pF
VOUT = 0V
Note:
3-68
Conditions
1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
AT27BV4096
AT27BV4096
Programming Waveforms (1)
Notes: 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 AT27BV4096 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
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 = 2.1 mA
VOH
Output High Voltage
IOH = -400 µA
ICC2
VCC Supply Current (Program and Verify)
IPP2
VPP Supply Current
VID
A9 Product Identification Voltage
Max
Units
±10
µA
-0.6
0.8
V
2.0
VCC + 0.1
V
0.4
V
Min
2.4
CE = VIL
11.5
V
50
mA
30
mA
12.5
V
3-69
AC Programming Characteristics
Rapid Programming Algorithm
TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V
A 50 µs CE 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 50 µs CE 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 50 µs 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.
SymTest
(1)
bol
Parameter Conditions*
Limits
Min
Max
Units
tAS
Address Setup Time
2
µs
tCES
CE Setup Time
2
µs
tOES OE Setup Time
2
µs
tDS
Data Setup Time
2
µs
tAH
Address Hold Time
0
µs
tDH
Data Hold Time
2
µs
tDFP
OE High to Output Float Delay (2)
0
tVPS
VPP Setup Time
2
µs
tVCS
VCC Setup Time
2
µs
tPW
PGM Program Pulse
Width (3)
tOE
Data Valid from OE
tPRT
VPP Pulse Rise Time During
Programming
47.5
130
ns
52.5
µs
150
ns
50
ns
*AC Conditions of Test:
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 2.0V
Output Timing Reference Level ...............0.8V to 2.0V
Notes: 1. VCC must be applied simultaneously or before VPP
and removed simultaneously 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 50 µsec ± 5%.
Atmel’s 27BV4096 Integrated
Product Identification Code (1)
Pins
Codes
Manufacturer
Device Type
Note:
3-70
A0 015-08 O7 O6 O5 O4 O3 O2 O1 O0
0
1
0
0
0
1
0
1
0 1
1 1
1 1
0 1
Hex
Data
1 0 001E
0 0 00F4
1. The AT27BV4096 has the same Product Identification
Code as the AT27C4096. Both are programming
compatible.
AT27BV4096
AT27BV4096
Ordering Information
ICC (mA)
tACC
(ns)
Active
Standby
120
8
150
Ordering Code
Package
Operation Range
0.02
AT27BV4096-12JC
AT27BV4096-12VC
44J
40V
Commercial
(0°C to 70°C)
8
0.02
AT27BV4096-12JI
AT27BV4096-12VI
44J
40V
Industrial
(-40°C to 85°C)
8
0.02
AT27BV4096-15JC
AT27BV4096-15VC
44J
40V
Commercial
(0°C to 70°C)
8
0.02
AT27BV4096-15JI
AT27BV4096-15VI
44J
40V
Industrial
(-40°C to 85°C)
= Preliminary Information
Package Type
44J
44 Lead, Plastic J-Leaded Chip Carrier (PLCC)
40V
40 Lead, Plastic Thin Small Outline Package (TSOP) 10 x 14 mm
3-71
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