ST MICROELECTRONICS 27C4001-90 Datasheet
4 Mbit (512Kb x 8) UV EPROM and OTP EPROM
Feature summary
■ 5V ± 10% supply voltage in Read operation
■ Access time: 35ns
■ Low power consumption:
– Active Current 30mA at 5MHz
– Standby Current 100µA
■ Programming voltage: 12.75V ± 0.25V
■ Programming time: 100µs/Word
■ Electronic signature
– Manufacturer Code: 20h
– Device Code: 41h
■ Packages
– ECOPACK® compliant versions
M27C4001
32
1
FDIP32W (F)
32
1
PDIP32 (B)
PLCC32 (C)
TSOP32 (N) 8 x 20 mm
March 2006 Rev 4 1/24
www.st.com
1
Contents M27C4001
Contents
1 Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Read Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Two Line Output Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 System Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.5 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.6 PRESTO II Programming Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.7 Program Inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.8 Program Verify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.9 Electronic Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10 Erasure operation (applies to UV EPROM) . . . . . . . . . . . . . . . . . . . . . . . 11
3 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5 Package mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2/24
M27C4001 List of tables
List of tables
Table 1. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 2. Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 3. Electronic Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 4. Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 5. AC Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 6. Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 7. Read Mode DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 8. Programming Mode DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 9. Read Mode AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 10. Read Mode AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 11. Programming Mode AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 12. FDIP32W - 32 pin Ceramic Frit-seal DIP with window, package mechanical data. . . . . . . 18
Table 13. PDIP32 - 32 lead Plastic DIP, 600 mils width, package mechanical data . . . . . . . . . . . . . 19
Table 14. PLCC32 - 32 lead Plastic Leaded Chip Carrier, package mechanical data . . . . . . . . . . . . 20
Table 15. TSOP32 - 32 lead Plastic Thin Small Outline, 8 x 20 mm, Package Mechanical Dat a. . . . 21
Table 16. Ordering Information Scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 17. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3/24
List of figures M27C4001
List of figures
Figure 1. Logic Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. DIP Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. LCC Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4. TSOP Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 5. Programming Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 6. AC Testing Input Output Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 7. AC Testing Load Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 8. Read Mode AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 9. Programming and Verify Modes AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 10. FDIP32W - 32 pin Ceramic Frit-seal DIP with window, Package Outline. . . . . . . . . . . . . . 18
Figure 11. PDIP32 - 32 lead Plastic DIP, 600 mils width, Package Outline. . . . . . . . . . . . . . . . . . . . . 19
Figure 12. PLCC32 - 32 lead Plastic Leaded Chip Carrier, Package Outline . . . . . . . . . . . . . . . . . . . 20
Figure 13. TSOP32 - 32 lead Plastic Thin Small Outline, 8 x 20 mm, Package Outline . . . . . . . . . . . 21
4/24
M27C4001 Summary description
1 Summary description
The M27C4001 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 organised as 524,288 by 8 bits.
The FDIP32W (window ceramic frit-seal package) has a transparent lid which allows the
user to expose the chip to ultra viol et light to er ase the bit pattern. A ne w 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 M27C4001 is off er ed in PDIP32 , PLCC32 an d TSOP32 ( 8 x 20 mm) p ac kages .
In order to meet environmental requirements, ST offers the M27C4001 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
V
CC
19
A0-A18 Q0-Q7
E
G
Table 1. Signal names
A0-A18 Address Inputs
Q0-Q7 Data Outputs
E Chip Enable
G
V
PP
V
CC
V
SS
M27C4001
V
SS
Output Enable
Program Supply
Supply Voltage
Ground
V
PP
8
AI00721B
5/25
Summary description M27C4001
Figure 2. DIP Connections
1
V
PP
A15
A12
Q0
Q2
SS
A7
A6
A5
A4
A3
A2
A1
A0
2
3
4
5
6
7
8
M27C4001
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
AI00722
V
CC
A18A16
A17
A14
A13
A8
A9
A11
G
A10
E
Q7
Q6
Q5Q1
Q4
Q3V
Figure 3. LCC Connections
A7
A6
A5
A4
A3
A2
A1
A0
Q0
9
A12
A15
M27C4001
Q1
Q2
A16
1
17
SS
V
VPPV
32
Q3
CC
Q4
A18
Q5
A17
25
Q6
A14
A13
A8
A9
A11
G
A10
E
Q7
AI00723
6/25
M27C4001 Summary description
Figure 4. TSOP Connections
A11 G
1
32
A9
A8
A13
A14
A17
A18
V
CC
V
PP
8
9
M27C4001
(Normal)
25
24
A16
A15
A12
A7
A6
A5
A4 A3
16 17
AI01155B
A10
E
Q7
Q6
Q5
Q4
Q3
V
SS
Q2
Q1
Q0
A0
A1
A2
7/25
Device operation M27C4001
2 Device operation
The operating modes of the M27C4001 are listed in the Operating Modes table. A single
power supply is required in t he read mod e. All inputs are TTL levels except for V
on A9 for Electronic Signature.
2.1 Read Mode
The M27C4001 has two control functions, both of which must be logically active in order to
obtain data at the outputs. Chip Enable (E
device selection. Out put Enable (G
the output pins, independent of device selection. Assuming that the addresses are stable,
the address access time (t
availab le a t th e outpu t aft er a de lay of t
been low and the addresses have been stable f or at least t
2.2 Standby Mode
The M27C4001 has a standby mode which reduces the supply curr ent from 30mA t o 100µA.
The M27C4001 is placed in the standby mode by applying a CMOS high signal to the E
input. When in the standby mo de, the ou tputs are in a high impedance stat e, indepe ndent of
the G
input.
) is the power control and should be u sed for
) is the output control and should be used to gate data to
) is equal to the delay from E to output (t
AVQV
from the falling edge of G, assuming that E has
GLQV
AVQV-tGLQV
ELQV
.
and 12V
PP
). Data is
2.3 Two Line Output Control
Because EPROMs are usually used in larger memory arrays, this product features a 2 line
control function which accommodates the use of multiple memory connection. The two line
control function allows:
a) the lowest possible memory power dissipation,
b) complete assurance that output bus contention will not occur.
For the most efficient use of these two control lines, E
primary device selecting function, while G
devices in the array and connected to the READ
ensures that all deselected memory devices are in their low power standby mode and that
the output pins are only active when data is required from a particular memory device.
should be decoded and used as the
should be made a common connection to all
line from the system control bus. This
8/25
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