M27V322

M27V322 32 Mbit (2Mb x16) Low Voltage UV EPROM and OTP EPROM s 3.3V ± 10% SUPPLY VOLTAGE in READ OPERATION READ ACCESS TIME – 100ns at VCC = 3.0V to 3.6V PIN COMPATIBLE WITH M27C322 WORD-WIDE CONFIGURABLE 32 Mbit MASK ROM REPLACEMENT 1 42 42 s s s s s LOW POWER CONSUMPTION – Active Current 30mA at 5MHz – Stand-by Current 60µA FDIP42W (F) 1 PDIP42 (P) s s s PROGRAMMING VOLTAGE: 12V ± 0.25V PROGRAMMING TIME: 50µs/word ELECTRONIC SIGNATURE – Manufacturer Code: 0020h – Device Code: 0034h Figure 1. Logic Diagram DESCRIPTION The M27V322 is a 32 Mbit EPROM offered in the UV range (ultra violet erase) and OTP range. It is ideally suited for microprocessor systems requiring large data or program storage. It is organised as 2 MWords of 16 bit. The pin-out is compatible with a 32 Mbit Mask ROM. The FDIP42W (window ceramic frit-seal package) has a 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 rapidly to the device by following the programming procedure. For applications where the content is programmed only one time and erasure is not required, the M27V322 is offered in PDIP42 package. VCC 21 A0-A20 16 Q0-Q15 E GVPP M27V322 VSS AI03050 March 2000 1/13 M27V322 Figure 2A. DIP Connections A18 A17 A7 A6 A5 A4 A3 A2 A1 A0 E VSS GVPP Q0 Q8 Q1 Q9 Q2 Q10 Q3 Q11 1 42 2 41 3 40 4 39 5 38 6 37 7 36 35 8 9 34 10 33 M27V322 32 11 31 12 30 13 29 14 28 15 27 16 17 26 18 25 19 24 20 23 22 21 AI03...