AT27BV4096_14 Datasheet, PDF (1/14 Pages) ATMEL Corporation – Pin Compatible with JEDEC Standard AT27C4096

Features
• 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 V_CC = 3.6V
– 36 mW Max Active at 5 MHz for V_CC = 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 one-
time 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 opera-
tion. 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.
Atmel’s innovative design techniques provide fast speeds that rival 5V parts while
keeping the low power consumption of a 3V supply. At V_CC = 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 V_CC = 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 sim-
plifies 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 pro-
grammable (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 V_CC at 3.0V produces TTL level outputs that are
compatible with standard TTL logic devices operating at V_CC = 5.0V. At V_CC = 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 mak-
ing it ideally suited for dual supply range systems or card products that are pluggable
in both 3-volt and 5-volt hosts.
4-Megabit
(256K x 16)
Unregulated
Battery-Voltage
High-Speed
OTP EPROM
AT27BV4096
Not Recommended
for New Designs.
0640E–EPROM–8/07