Microchip AT27BV512-70JU

64K x 870 нс-40°C ~ 85°C (TC)

Overview

The Atmel AT27BV512 is a high-performance, low-power, low-voltage,524,288-bit, one-time programmable, read-only memory (OTP EPROM) organized as 64K 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. The Atmel innovative design techniques provide fast speeds that rival 5V parts, while keep-ing the low power consumption of a 3V supply. At Vc=2.7V, any byte can be accessed in less than 70ns. With a typical power consumption of only 18mW at 5MlHz and Vcc=3V, the AT27BV512 consumes less than one-fifth the power of a standard 5V EPROM. Standby mode supply current is typically less than 1uA at 3V. The AT27BV512 simplifies system design and stretches battery lifetime even further by eliminating the need for power supply regulation. The AT27BV5 12 is available in industry-standard, JEDEC-approved, one-time programmable(OTP) PLCC and plastic TSOP packages. All devices feature two-line control (CE, OE) to give designers the flexibility to prevent bus contention. The AT27BV512 operating with Vc at 3.0V produces TTL-level outputs that are compatiblewith standard TTL logic devices operating at Vcc=5.0V. At Vcc=2.7V, the part is compati-ble with JEDEC-approved, low-voltage battery operation (LVBO) interface specifications. The device is also capable of standard,5V operation, making it ideally suited for dual supply range systems or card products that are pluggable in both 3V and 5V hosts. The Atmel AT27BV5 12 has additional features to ensure high quality and efficient produc-tion use. The rapid programming algorithm reduces the time required to program the part and guarantees reliable programming. Programming time is typically only 100us/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 AT27BV5 12 programs in exactly the same way as a standard,5V Atmel AT27C5 12R, and uses the same programming equipment.

Features • Fast read access time – 70ns • Dual voltage range operation – Unregulated battery power supply range, 2.7V to 3.6V, or – Standard power supply range, 5V  10% • Pin compatible with JEDEC standard Atmel® AT27C512R • Low-power CMOS operation – 20µA max standby (less than 1µA, typical) for VCC = 3.6V – 29mW max active at 5MHz for VCC = 3.6V • JEDEC standard surface mount packages – 32-lead PLCC – 28-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) packaging option

Features

Applications

• mainframes
• multimedia computers
• networking
• personal computers
• servers
• supercomputers
• telecommunications
• workstations,
• DVD disk buffer
• data buffer