M27C4002
4 Mbit (256Kb x16) UV EPROM and OTP EPROM
Feature summary
■
■
■
5V ± 10% Supply voltage for Read operations
Access time: 45ns
Low Power consumption
– Active Current 70mA at 10MHz
– Standby current 100µa
Programming Voltage: 12.75V ± 0.25V
Programming Time: 100µs/word
Electronic Signature
– Manufacturer Code: 20h
– Device Code: 44h
ECOPACK
®
packages available
PLCC44 (C)
TSOP40 (N)
10 x 20 mm
40
40
1
1
■
■
■
FDIP40W (F)
PDIP40 (B)
■
April 2006
Rev 4
1/24
www.st.com
1
Contents
M27C4002
Contents
1
2
Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
Read mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Two line output control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
System considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
PRESTO II programming algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Program Inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Program Verify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electronic Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Erasure operation (applies to UV EPROM) . . . . . . . . . . . . . . . . . . . . . . . 11
3
4
5
6
7
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2/24
M27C4002
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electronic Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
AC Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Read Mode DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Programming Mode DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Read Mode AC Characteristics 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Read Mode AC Characteristics 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Read Mode AC Characteristics 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Programming Mode AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
FDIP40W - 40 pin Ceramic Frit-seal DIP with window, Package Mechanical Data . . . . . . 18
PDIP40 - 40 pin Plastic DIP, 600 mils width, Package Mechanical Data . . . . . . . . . . . . . . 19
PLCC44 - 44 lead Plastic Leaded Chip Carrier, Package Mechanical Data. . . . . . . . . . . . 20
TSOP40 - 40 lead Plastic Thin Small Outline, 10 x 20 mm, mechnical data . . . . . . . . . . . 21
Ordering Information Scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3/24
List of figures
M27C4002
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Logic Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DIP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
LCC Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
TSOP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Programming Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
AC Testing Input Output Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
AC Testing Load Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Read Mode AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Programming and Verify Modes AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
FDIP40W - 40 pin Ceramic Frit-seal DIP with window, Package Outline . . . . . . . . . . . . . . 18
PDIP40 - 40 lead Plastic DIP, 600 mils width, Package Outline. . . . . . . . . . . . . . . . . . . . . 19
PLCC44 - 44 lead Plastic Leaded Chip Carrier, Package Outline . . . . . . . . . . . . . . . . . . . 20
TSOP40 - 40 lead Plastic Thin Small Outline, 10 x 20 mm, Package Outline . . . . . . . . . . 21
4/24
M27C4002
Summary description
1
Summary description
The M27C4002 is a 4 Mbit EPROM offered in the two ranges UV (ultra violet erase) and
OTP (one time programmable). It is ideally suited for microprocessor systems requiring
large programs and is organized as 262,144 words of 16 bits.
The FDIP40W (window ceramic frit-seal package) has transparent lids which allow 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 M27C4002 is offered in PDIP40, PLCC44 and TSOP40 (10 x 20 mm)
packages.
In order to meet environmental requirements, ST offers the M27C4002 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
VCC
VPP
18
A0-A17
16
Q0-Q15
E
G
M27C4002
VSS
AI00727B
5/24
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