Features
• Fast Read Access Time – 120 ns
• Dual Voltage Range Operation
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– 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
– 36 mW Max Active at 5 MHz for VCC = 3.6V
JEDEC Standard Surface Mount Packages
– 44-lead PLCC
– 40-lead VSOP
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
Industrial Temperature Range
Green (Pb/Halide-free) Packaging Option
1. 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.
4-Megabit
(256K x 16)
Unregulated
Battery-Voltage
High-Speed
OTP EPROM
AT27BV4096
Not Recommended
for New Designs.
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 = 3V, the AT27BV4096 consumes less than one fifth the power of a standard
5V EPROM.
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 VSOP 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.
0640E–EPROM–8/07
