M27C512

512 Kbit (64K x8) UV EPROM and OTP EPROM

FEATURES SUMMARY

■ 5V ± 10% SUPPLY VOLTAGE in READ OPERATION

■ ACCESS TIME: 45ns

■ LOW POWER “CMOS” CONSUMPTION:

– Active Current 30mA

– Standby Current 100µA

■ PROGRAMMING VOLTAGE: 12.75V ± 0.25V

■ PROGRAMMING TIMES of AROUND 6sec.

■ ELECTRONIC SIGNATURE

– Manufacturer Code: 20h

– Device Code: 3Dh

■ PACKAGES

– Lead-Free Versions

SUMMARY DESCRIPTION

The M27C512 is a 512 Kbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one time programmable). It is ideally suited for applications where fast turn-around and pattern experimentation are important requirements and is organized as 65536 by 8 bits.

The FDIP28W (window ceramic frit-seal package) has transparent lid which allows the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure. For applications where the content is programmed only one time and erasure is not required, the M27C512 is offered in PDIP28, PLCC32 and TSOP28 (8 x 13.4 mm) packages.

In addition to the standard versions, the packages are also available in Lead-free versions, in compliance with JEDEC Std J-STD-020B, the ST ECOPACK 7191395 Specification, and the RoHS (Restriction of Hazardous Substances) directive.

Absolute Maximum Ratings

Note:

1. Compliant with the JEDEC Std J-STD-020B (for small body, Sn-Pb or Pb assermbly), the ST ECOPACK® 7191395 specification, and the European directive on Restrictions on Hazardous Substances (RoHS) 2002/95/EU.

2. Minimum DC voltage on Input or Output is –0.5V with possible undershoot to –2.0V for a period less than 20ns. Maximum DC voltage on Output is VCC +0.5V with possible overshoot to VCC +2V for a period less than 20ns.

3. Depends on range.

Figure 1. Packages Figure 2. Logic Diagram

Signal Names

Figure 3. DIP Connections Figure 4. LCC Connections

Figure 5. TSOP Connections

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