Features: ` Fast Read Access Time - 120 ns
` Dual Voltage Range Operation
Low Voltage Power Supply Range, 3.0V to 3.6V or Standard 5V ± 10% Supply Range
`Compatible With JEDEC Standard AT27C040
` Low Power 3.3-volt CMOS Operation
20 A max. (less than 1 mA typical) Standby for VCC = 3.6V
29 mW max. Active at 5 MHz for VCC = 3.6V
` JEDEC Standard Packages
32-Lead PLCC
32-Lead TSOP
` High Reliability CMOS Technology
2,000V ESD Protection
200 mA Latchup Immunity
` RapidÔ Programming Algorithm - 100 s/byte (typical)
` CMOS and TTL Compatible Inputs and Outputs
JEDEC Standard for LVTTL
` Integrated Product Identification Code
` Commercial and Industrial Temperature RangesPinout
SpecificationsTemperature Under Bias .................. -40°C to +85°C
Storage Temperature......................-65°C to +125°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 be exceeded if certain precautions are observed (consult application notes) and which may overshoot to +7.0 volts for pulses of less than 20 ns.
DescriptionThe AT27LV040A is a high performance, low power, low voltage, 4,194,304 bit onetime programmable read only memory (OTP EPROM) organized as 512K by 8 bits. It requires only one supply in the range of 3.0 to 3.6V in normal read mode operation, making it ideal for fast, portable systems using 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 VCC = 3.0V, any byte can be accessed in less than 120 ns. With a typical power dissipation of only 18 mW at 5 MHz and VCC = 3.3V, the AT27LV040A consumes less than one half the power of a standard 5V EPROM. Standby mode supply current is typically less than 1 A at 3.3V.
The AT27LV040A 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 AT27LV040A operating with VCC at 3.0V produces TTL level outputs that are compatible with standard TTL logic devices operating at VCC = 5.0V. 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 AT27LV040A 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 ms/byte. 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 AT27LV040A programs exactly the same way as a standard 5V AT27C040 and uses the same programming equipment.
AT27LV040A Data Sheet
