Description
The Atmel AT27BV040 chip is a high-performance, low-power, low-voltage, 4,194,304-bit, one-time programmable, read only memory (EPROM) organized as 512K by 8 bits. It requires only one supply in the range of 2.7 to 3.6V in normal read mode operation, making it ideal for fast, portable systems using either regulated or unregulated battery power.

FEATUREs
• Fast read access time – 120ns
• Dual voltage range operation
   – Unregulated battery power supply range, 2.7V to 3.6V, or
   – Standard power supply range, 5V  10%
• Compatible with JEDEC standard Atmel® AT27C040
• Low-power CMOS operation
   – 20µA max standby (less than 1µA, typical) for VCC = 3.6V
   – 36mW max active at 5MHz for VCC = 3.6V
• JEDEC standard packages
   – 32-lead PLCC
   – 32-lead TSOP
• High-reliability CMOS technology
   – 2,000V ESD protection
   – 200mA latchup immunity
• Rapid programming algorithm – 100µs/byte (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, RoHS compliant) packaging