1/16September 2000
M27C801
8 Mbit (1Mb x 8) UV EPROM and OTP EPROM
a73 5V ± 10% SUPPLY VOLTAGE in READ
OPERATION
a73 ACCESS TIME: 45ns
a73 LOW POWER CONSUMPTION:
– Active Current 35mA at 5MHz
– Standby Current 100µA
a73 PROGRAMMING VOLTAGE: 12.75V ± 0.25V
a73 PROGRAMMING TIME: 50µs/word
a73 ELECTRONIC SIGNATURE
– Manufacturer Code: 20h
– Device Code: 42h
DESCRIPTION
The M27C801 is an 8 Mbit EPROM offered in the
two ranges UV (ultra violet erase) and OTP (one
time programmable). It is ideally suited for applica-
tions where fast turn-around and pattern experi-
mentation are important requirements and is
organized as 1,048,576 by 8 bits.
The FDIP32W (window ceramic frit-seal package)
has 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 to the
device by following the programming procedure.
For applications where the content is programmed
only one time and erasure is not required, the
M27C801 is offered in PDIP32, PLCC32 and
TSOP32 (8 x 20 mm) packages.
1
32
FDIP32W (F)
PLCC32 (K)
TSOP32 (N)
8 x 20 mm
32
1
PDIP32 (B)
Figure 1. Logic Diagram
AI01267
20
A0-A19 Q0-Q7
V
CC
M27C801
V
SS
8
GV
PP
E