ATMEL AT27BV1024-15VC, AT27BV1024-15JI, AT27BV1024-15JC, AT27BV1024-12VI, AT27BV1024-12VC Datasheet
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AT27BV1024
Features
0631A
Fast Read Access Ti me - 90 ns
•
Dual Voltage Range Operation
•
Unregulated Battery Power Sup ply Range, 2.7V to 3.6V
or Standard 5V ± 10% Supply Range
Pin Compatible with JEDEC Standard AT27C1024
•
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 Packa ge s
•
44-Lead PLCC
40-Lead TSOP (10 x 14mm)
High Reliabili ty C MOS Te ch nology
•
2,000V ESD Protection
200 mA Latchup Imm un ity
RapidProgramming Algorithm - 100 µs/word (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 Ranges
•
Description
The AT27BV1024 is a high performance, low power, low voltage 1,048,576 bit onetime 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 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)
Pin Configurations
Pin Name Function
A0 - A15 Addresses
O0 - O15 Outputs
CE Chip Enable
OE Output Enable
PGM Program Strobe
NC No Connect
Note: Both GND pins must be
connected.
PLCC Top View
AT27BV1024
1 Megabit
(64K x 16)
Unregulated
Battery-Voltage
High Speed
OTP
CMOS EPROM
Note: PLCC Package Pins 1 and
23 are DON’T CONNECT.
TSOP Top View
Type 1
3-33
Description (Continued)
Atmel’s innovative design techniques provide fast speeds
that rival 5V parts while keeping the low power consumption of a 3V supply. At V
cessed in less than 120 ns. With a typical power dissipation of only 18 mW at 5 MHz and V
AT27BV1024 consumes less than one fifth the power of a
standard 5V EPROM.
Standby mode supply current is typically less than 1 µA a t
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 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 AT27BV1024 operating with V
TTL level outputs that are compatible with standard TTL
logic devices operating at V
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 AT27BV1024 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 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 AT27BV1024
programs exactly the same way as a standard 5V
AT27C1024 and uses the same programming equipment.
= 2.7V, any word can be ac-
CC
= 3V, the
CC
at 3.0V produces
CC
= 5.0V. At VCC = 2.7V, the
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
3-34 AT27BV1024
AT27BV1024
Block Diagram
Absolute Maximum Ra ti ngs *
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
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 voltage is -0.6V dc which ma y unde rshoot to
-2.0V for pulses of less than 20 ns. Maximum out put
pin voltage is V
to +7.0V for pulses of less than 20 ns.
+ 0.75V dc which may overshoot
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,
2.7V ≤ VCC ≤ 3.6V, or 4.5V ≤ VCC ≤ 5.5V.
3. Refer to Programming Characteristics. Programming
modes require VCC = 6.5V.
(2)
(2)
(3)
(3)
(3)
(3, 5)
CE OE PGM Ai V
V
IL
V
IL
X
(1)
Ai X V
PP
XVIHXXXV
V
IH
V
IL
V
IL
V
IH
V
IL
XX X X
V
IH
V
IL
V
IL
V
IH
Ai V
Ai V
XX X VPPV
(4)
A9 = V
V
IL
X
A0 = VIH or VIL
A1 - A15 = V
4. V
5. Two identifier words may be selected. All Ai in pu ts
H
IL
= 12.0 ± 0.5V.
H
are held low (VIL), except A9 which is set to VH and A0
which is togg le d low (V
fication word and high (V
(5)
PP
PP
V
CC
) to select the Manufacturer’s Identi-
IL
V
CC
CC
CC
V
CC
V
CC
V
CC
CC
V
CC
) to select the Device Code word.
IH
(2)
(2)
(2)
(3)
(3)
(3)
(3)
Outputs
D
High Z
High Z
D
D
High Z
Identification
Code
OUT
IN
OUT
3-35
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