M27C202

M27C202 2 Mbit (128Kb x16) UV EPROM and OTP EPROM s 5V ± 10% SUPPLY VOLTAGE in READ OPERATION ACCESS TIME: 45ns LOW POWER CONSUMPTION: – Active Current 50mA at 5MHz – Standby Current 100µA 40 s s 40 1 1 s s s PROGRAMMING VOLTAGE: 12.75V ± 0.25V PROGRAMMING TIME: 100µs/word ELECTRONIC SIGNATURE – Manufacturer Code: 20h – Device Code: 1Ch FDIP40W (F) PDIP40 (B) DESCRIPTION The M27C202 is a 2 Mbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one time programmable). It is ideally suited for microprocessor systems requiring large programs, in the application where the contents is stable and needs to be programmed only one time, and is organised as 131,072 by 16 bits. The FDIP40W (window ceramic frit-seal package) has a transparent lids which allow 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 M27C202 is offered in PDIP40, PLCC44 and TSOP40 (10 x 14 mm) packages. PLCC44 (K) TSOP40 (N) 10 x 14 mm Figure 1. Logic Diagram VCC VPP 17 A0-A16 16 Q0-Q15 P E G M27C202 VSS AI01815 April 1999 1/15 M27C202 Figure 2A. DIP Connections Figure 2B. TSOP Connections VPP E Q15 Q14 Q13 Q12 Q11 Q10 Q9 Q8 VSS Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0 G 40 1 39 2 38 3 37 4 36 5 35 6 34 7 33 8 32 9 31 10 M27C202 30 11 29 12 28 13 27 14 26 15 25 16 17 24 18 23 19 22 20 ...