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M27W800

STMicroelectronics
Part Number M27W800
Manufacturer STMicroelectronics
Description 8 Mbit 1Mb x 8 or 512Kb x 16 Low Voltage UV EPROM and OTP EPROM
Published Apr 1, 2005
Detailed Description M27W800 8 Mbit (1Mb x 8 or 512Kb x 16) Low Voltage UV EPROM and OTP EPROM s 2.7V to 3.6V LOW VOLTAGE in READ OPERATION ...
Datasheet PDF File M27W800 PDF File

M27W800
M27W800

Overview
M27W800 8 Mbit (1Mb x 8 or 512Kb x 16) Low Voltage UV EPROM and OTP EPROM s 2.
7V to 3.
6V LOW VOLTAGE in READ OPERATION ACCESS TIME: – 90ns at VCC = 3.
0V to 3.
6V – 100ns at VCC = 2.
7V to 3.
6V 42 42 s s BYTE-WIDE or WORD-WIDE CONFIGURABLE 8 Mbit MASK ROM REPLACEMENT LOW POWER CONSUMPTION – Active Current 30mA at 8MHz – Standby Current 15µA 1 1 FDIP42W (F) PDIP42 (B) s s s s s PROGRAMMING VOLTAGE: 12.
5V ± 0.
25V PROGRAMMING TIME: 50µs/word ELECTRONIC SIGNATURE – Manufacturer Code: 20h – Device Code: B2h Figure 1.
Logic Diagram PLCC44 (K) DESCRIPTION The M27W800 is a low voltage 8 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 data or program storage.
It is organised as either 1 Mbit words of 8 bit or 512 Kbit words of 16 bit.
The pinout is compatible with a 8 Mbit Mask ROM.
The M27W800 operates in the read mode with a supply voltage as low as 2.
7V.
The decrease in operating power allows either a reduction of the size of the battery or an increase in the time between battery recharges.
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 M27W800 is offered in PDIP42 and PLCC44 package.
VCC 19 A0-A18 15 Q15A–1 Q0-Q14 E G BYTEVPP M27W800 VSS AI03601 March 2000 1/15 M27W800 Figure 2A.
DIP Connections A18 A17 A7 A6 A5 A4 A3 A2 A1 A0 E VSS G 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 M27W800 32 11 31 12 30 13 29 14 28 15 27 16 17 26 18 25 19 24 20 23 22 21 AI03602 Figure 2B.
LCC Connections NC A8 A9 A10 A11 A12 A13 A14 A15 A16 BYTEVPP VSS Q15A-1 Q7 Q14 Q6 Q13 Q5 Q12 Q4 VCC A4 A3 A2 A1 A0 E VSS G Q0 Q8 Q1 A5 A6 A7 A17 A18...


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