M27V256-100N6TR View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
M27V256-100N6TR Datasheet PDF : 3 Pages
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M27V256
256 Kbit (32Kb x 8) Low Voltage UV EPROM and OTP EPROM
LOW VOLTAGE READ OPERATION:
3V to 3.6V
FAST ACCESS TIME: 90ns
LOW POWER CONSUMPTION:
– Active Current 10mA at 5MHz
– Standby Current 10µA
PROGRAMMING VOLTAGE: 12.75V ± 0.25V
PROGRAMMING TIME: 100µs/byte (typical)
ELECTRONIC SIGNATURE
– Manufacturer Code: 20h
– Device Code: 8Dh
DATA BRIEFING
28
1
FDIP28W (F)
28
1
PDIP28 (B)
DESCRIPTION
The M27V256 is a low voltage 256 Kbit EPROM
offeredin 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 M27V256 operates in the read mode with a
supply voltage as low as 3V. 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 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
M27V256 is offered in PDIP28, PLCC32 and
TSOP28 (8 x 13.4 mm) packages.
PLCC32 (K)
Logic Diagram
TSOP28 (N)
8 x 13.4mm
VCC VPP
15
A0-A14
8
Q0-Q7
E
M27V256
G
VSS
AI01908
B27V256/805
1/3
Complete data available on DATA-on-DISC CD-ROM or at www.st.com
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