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M27C256B-12N6XTR

Description
IC,EPROM,32KX8,CMOS,TSSOP,28PIN,PLASTIC
Categorystorage    storage   
File Size107KB,16 Pages
ManufacturerSTMicroelectronics
Websitehttp://www.st.com/
Download Datasheet Parametric View All

M27C256B-12N6XTR Overview

IC,EPROM,32KX8,CMOS,TSSOP,28PIN,PLASTIC

M27C256B-12N6XTR Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerSTMicroelectronics
Reach Compliance Codenot_compliant
Maximum access time120 ns
I/O typeCOMMON
JESD-30 codeR-PDSO-G28
JESD-609 codee0
memory density262144 bit
Memory IC TypeEEPROM CARD
memory width8
Number of terminals28
word count32768 words
character code32000
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
organize32KX8
Output characteristics3-STATE
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP28,.53,22
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply5 V
Programming voltage2.7 V
Certification statusNot Qualified
Maximum standby current0.0001 A
Maximum slew rate0.03 mA
Nominal supply voltage (Vsup)5 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.55 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
M27C256B
256 Kbit (32Kb x 8) UV EPROM and OTP EPROM
s
5V
±
10% SUPPLY VOLTAGE in READ
OPERATION
ACCESS TIME: 45ns
LOW POWER CONSUMPTION:
– Active Current 30mA at 5MHz
– Standby Current 100µA
28
28
s
s
s
s
s
PROGRAMMING VOLTAGE: 12.75V
±
0.25V
PROGRAMMING TIME: 100µs/word
ELECTRONIC SIGNATURE
– Manufacturer Code: 20h
– Device Code: 8Dh
1
1
FDIP28W (F)
PDIP28 (B)
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 mi-
croprocessor 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 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
M27C256B is offered in PDIP28, PLCC32 and
TSOP28 (8 x 13.4 mm) packages.
PLCC32 (C)
TSOP28 (N)
8 x 13.4 mm
Figure 1. Logic Diagram
VCC
VPP
15
A0-A14
8
Q0-Q7
E
G
M27C256B
VSS
AI00755B
April 2001
1/16
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