AT27BV4096

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 A max. (less than 1 A typical) Standby for V_CC = 3.6V
    29 mW max. Active at 5 MHz for V_CC = 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 s/word (typical)
` CMOS and TTL Compatible Inputs and Outputs JEDEC Standard for LVTTL and LVBO
` Integrated Product Identification Code
` Commercial and Industrial Temperature Ranges


Pinout




Specifications

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.}


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.

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, t he AT27BV4096 consumes less than one fifth the power of a standard 5V EPROM.

Standby mode supply current is typically less than 1 mA 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 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 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 RapidÔProgramming Algorithm reduces the time required to program the part and guarantees reliable programming. Programming time is typically only 100 s/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.