M27C256B-15C1 STMicroelectronics, M27C256B-15C1 Datasheet - Page 5
![IC OTP 256KBIT 150NS 32PLCC](/photos/7/23/72383/497-32-plcc_series_sml.jpg)
M27C256B-15C1
Manufacturer Part Number
M27C256B-15C1
Description
IC OTP 256KBIT 150NS 32PLCC
Manufacturer
STMicroelectronics
Datasheet
1.M27C256B-15F1.pdf
(24 pages)
Specifications of M27C256B-15C1
Format - Memory
EPROMs
Memory Type
OTP EPROM
Memory Size
256K (32K x 8)
Speed
150ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
32-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-1649-5
Available stocks
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Manufacturer
Quantity
Price
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M27C256B
1
Summary description
The M27C256B is a 256 Kbit EPROM offered in the two ranges UV (ultra violet erase) and
OTP (one time programmable). It is ideally suited for microprocessor systems and is
organized as 32,768 by 8 bits.
The FDIP28W (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 to the device by following the programming procedure.
For applications where the content is programmed only one time and erasure is not
required, the M27C256B is offered in PDIP28 and PLCC32 packages.
In order to meet environmental requirements, ST offers the M27C256B in ECOPACK®
packages.
ECOPACK packages are Lead-free. The category of second Level Interconnect is marked
on the package and on the inner box label, in compliance with JEDEC Standard JESD97.
The maximum ratings related to soldering conditions are also marked on the inner box label.
ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
Figure 1.
Logic diagram
A0-A14
G
E
15
V CC
M27C256B
V SS
V PP
8
Q0-Q7
AI00755B
Summary description
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