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M27W800-150K6TR Datasheet

  • M27W800-150K6TR

  • 8 Mbit 1Mb x 8 or 512Kb x 16 Low Voltage UV EPROM and OTP EP...

  • 15頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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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:
鈥?90ns at V
CC
= 3.0V to 3.6V
鈥?100ns at V
CC
= 2.7V to 3.6V
42
42
s
s
BYTE-WIDE or WORD-WIDE
CONFIGURABLE
8 Mbit MASK ROM REPLACEMENT
LOW POWER CONSUMPTION
鈥?Active Current 30mA at 8MHz
鈥?Standby Current 15碌A(chǔ)
1
1
FDIP42W (F)
PDIP42 (B)
s
s
s
s
s
PROGRAMMING VOLTAGE: 12.5V 鹵 0.25V
PROGRAMMING TIME: 50碌s/word
ELECTRONIC SIGNATURE
鈥?Manufacturer Code: 20h
鈥?Device Code: B2h
Figure 1. Logic Diagram
PLCC44 (K)
DESCRIPTION
The M27W800 is a low voltage 8 Mbit EPROM of-
fered 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 pin-
out 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 be-
tween battery recharges.
The FDIP42W (window ceramic frit-seal package)
has a transparent lid which allows the user to ex-
pose the chip to ultraviolet light to erase the bit pat-
tern. A new pattern can then be written rapidly to
the device by following the programming proce-
dure.
For applications where the content is programmed
only one time and erasure is not required, the
M27W800 is offered in PDIP42 and PLCC44 pack-
age.
VCC
19
A0-A18
15
Q15A鈥?
Q0-Q14
E
G
BYTEVPP
M27W800
VSS
AI03601
March 2000
1/15

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