STMicroelectronics M27C64A-25K1 64 kbit (8kb x8) uv eprom and otp eprom Datasheet

M27C64A
64 Kbit (8Kb x8) UV EPROM and OTP EPROM
Feature summary
■
5V ± 10% supply voltage in Read operation
■
Access time: 100ns
■
Low power “CMOS” consumption:
– Active Current 30mA
– Standby Current 100µA
■
Programming voltage: 12.5V ± 0.25V
■
High speed programming
(less than 1 minute)
■
Electronic signature
– Manufacturer Code: 9Bh
– Device Code: 08h
■
ECOPACK® packages available
28
1
FDIP28W (F)
PLCC32 (K)
April 2006
Rev 3
1/22
www.st.com
1
Contents
M27C64A
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.6
High-speed programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.7
Program Inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.8
Program Verify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.9
Electronic Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10
Erasure operation (applies to UV EPROMs) . . . . . . . . . . . . . . . . . . . . . . 10
3
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4
DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6
Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2/22
M27C64A
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.
Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electronic Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
AC Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Read Mode DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Programming Mode DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Read Mode AC Characteristics 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Read Mode AC Characteristics 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Programming Mode AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
FDIP28W - 28 pin Ceramic Frit-seal DIP, with window, Package Mechanical Data. . . . . . 18
PLCC32 - 32 lead Plastic Leaded Chip Carrier, mechanical data . . . . . . . . . . . . . . . . . . . 19
Ordering Information Scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3/22
List of figures
M27C64A
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
4/22
Logic Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
DIP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pin Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Programming Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
AC Testing Input Output Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
AC Testing Load Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Read Mode AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Programming and Verify Modes AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
FDIP28W - 28 pin Ceramic Frit-seal DIP, with window, Package Outline . . . . . . . . . . . . . 18
PLCC32 - 32 lead Plastic Leaded Chip Carrier, Package Outline . . . . . . . . . . . . . . . . . . . 19
M27C64A
1
Summary description
Summary description
The M27C64A is a 64Kbit 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 8,192 by 8 bits.
The FDIP28W (window ceramic frit-seal package) has 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 on time and erasure is not required,
the M27C64A is offered in PLCC32 package.
In order to meet environmental requirements, ST offers the M27C64A 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.
5/22
Summary description
Figure 1.
M27C64A
Logic Diagram
VCC
VPP
13
8
Q0-Q7
A0-A12
P
M27C64A
E
G
VSS
AI00834B
Table 1.
6/22
Signal Names
A0-A12
Address Inputs
Q0-Q7
Data Outputs
E
Chip Enable
G
Output Enable
P
Program
VPP
Program Supply
VCC
Supply Voltage
VSS
Ground
NC
Not Connected Internally
DU
Don’t Use
M27C64A
Summary description
Figure 2.
DIP Connections
VPP
A12
A7
A6
A5
A4
A3
A2
A1
A0
Q0
Q1
Q2
VSS
28
1
27
2
26
3
4
25
5
24
6
23
7
22
M27C64A
8
21
9
20
10
19
11
18
12
17
13
16
14
15
VCC
P
NC
A8
A9
A11
G
A10
E
Q7
Q6
Q5
Q4
Q3
AI00835
A7
A12
VPP
DU
VCC
P
NC
Pin Connections
1 32
M27C64A
9
25
A8
A9
A11
NC
G
A10
E
Q7
Q6
17
VSS
DU
Q3
Q4
Q5
A6
A5
A4
A3
A2
A1
A0
NC
Q0
Q1
Q2
Figure 3.
AI00836
7/22
Device operation
2
M27C64A
Device operation
The modes of operation of the M27C64A are listed in the Operating Modes table. A single
power supply is required in the read mode. All inputs are TTL levels except for VPP and 12V
on A9 for Electronic Signature.
2.1
Read mode
The M27C64A has two control functions, both of which must be logically active in order to
obtain data at the outputs. Chip Enable (E) is the power control and should be used for
device selection. Output Enable (G) is the output control and should be used to gate data to
the output pins, independent of device selection. Assuming that the addresses are stable,
the address access time (tAVQV) is equal to the delay from E to output (tELQV). Data is
available at the output after a delay of tGLQV from the falling edge of G, assuming that E has
been low and the addresses have been stable for at least tAVQV-tGLQV.
2.2
Standby mode
The M27C64A has a standby mode which reduces the active current from 30mA to 100µA.
The M27C64A is placed in the standby mode by applying a CMOS high signal to the E input.
When in the standby mode, the outputs are in a high impedance state, independent of the G
input.
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:
●
The lowest possible memory power dissipation
●
Complete assurance that output bus contention will not occur
For the most efficient use of these two control lines, E should be decoded and used as the
primary device selecting function, while G should be made a common connection to all
devices in the array and connected to the READ line from the system control bus. This
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.
2.4
System considerations
The power switching characteristics of Advanced CMOS EPROMs require careful
decoupling of the devices. The supply current, ICC, has three segments that are of interest to
the system designer: the standby current level, the active current level, and transient current
peaks that are produced by the falling and rising edges of E. The magnitude of the transient
current peaks is dependent on the capacitive and inductive loading of the device at the
output. The associated transient voltage peaks can be suppressed by complying with the
two line output control and by properly selected decoupling capacitors. It is recommended
that a 0.1µF ceramic capacitor be used on every device between VCC and VSS. This should
8/22
M27C64A
Device operation
be a high frequency capacitor of low inherent inductance and should be placed as close to
the device as possible. In addition, a 4.7µF bulk electrolytic capacitor should be used
between VCC and VSS for every eight devices. The bulk capacitor should be located near the
power supply connection point. The purpose of the bulk capacitor is to overcome the voltage
drop caused by the inductive effects of PCB traces.
2.5
Programming
When delivered (and after each erasure for UV EPROM), all bits of the M27C64A are in the
"1" state. Data is introduced by selectively programming "0"s into the desired bit locations.
Although only "0"s will be programmed, both "1"s and "0"s can be present in the data word.
The only way to change a "0" to a "1" is by die exposition to ultraviolet light (UV EPROM).
The M27C64A is in the programming mode when VPP input is at 12.5V, E is at VIL and P is
pulsed to VIL. The data to be programmed is applied to 8 bits in parallel to the data output
pins. The levels required for the address and data inputs are TTL. VCC is specified to be 6V
± 0.25V.
2.6
High-speed programming
The high speed programming algorithm, described in Figure 4, rapidly programs the
M27C64A using an efficient and reliable method, particularly suited to the production
programming environment. An individual device will take around 1 minute to program.
Figure 4.
Programming Flowchart
VCC = 6V, VPP = 12.5V
n=1
P = 1ms Pulse
NO
++n
> 25
YES
NO
++ Addr
VERIFY
YES
P = 3ms Pulse by n
FAIL
Last
Addr
NO
YES
CHECK ALL BYTES
1st: VCC = 6V
2nd: VCC = 4.2V
AI01167
9/22
Device operation
2.7
M27C64A
Program Inhibit
Programming of multiple M27C64A in parallel with different data is also easily
accomplished. Except for E, all like inputs including G of the parallel M27C64A may be
common. A TTL low level pulse applied to a M27C64A P input, with E low and VPP at 12.5V,
will program that M27C64A. A high level E input inhibits the other M27C64A from being
programmed.
2.8
Program Verify
A verify (read) should be performed on the programmed bits to determine that they were
correctly programmed. The verify is accomplished with E and G at VIL, P at VIH, VPP at
12.5V and VCC at 6V.
2.9
Electronic Signature
The Electronic Signature (ES) mode allows the reading out of a binary code from an
EPROM that will identify its manufacturer and type. This mode is intended for use by
programming equipment to automatically match the device to be programmed with its
corresponding programming algorithm. The ES mode is functional in the 25°C ± 5°C
ambient temperature range that is required when programming the M27C64A. To activate
the ES mode, the programming equipment must force 11.5V to 12.5V on address line A9 of
the M27C64A, with VPP = VCC = 5V. Two identifier bytes may then be sequenced from the
device outputs by toggling address line A0 from VIL to VIH. All other address lines must be
held at VIL during Electronic Signature mode.
Byte 0 (A0 = VIL) represents the manufacturer code and byte 1 (A0=VIH) the device identifier
code. For the STMicroelectronics M27C64A, these two identifier bytes are given in Table 3:
Electronic Signature and can be read-out on outputs Q7 to Q0.
2.10
Erasure operation (applies to UV EPROMs)
The erasure characteristics of the M27C64A is such that erasure begins when the cells are
exposed to light with wavelengths shorter than approximately 4000 Å. It should be noted
that sunlight and some type of fluorescent lamps have wavelengths in the 3000-4000 Å
range. Research shows that constant exposure to room level fluorescent lighting could
erase a typical M27C64A in about 3 years, while it would take approximately 1 week to
cause erasure when exposed to direct sunlight. If the M27C64A is to be exposed to these
types of lighting conditions for extended periods of time, it is suggested that opaque labels
be put over the M27C64A window to prevent unintentional erasure. The recommended
erasure procedure for the M27C64A is exposure to short wave ultraviolet light which has a
wavelength of 2537 Å. The integrated dose (i.e. UV intensity x exposure time) for erasure
should be a minimum of 15 W-sec/cm2. The erasure time with this dosage is approximately
15 to 20 minutes using an ultraviolet lamp with 12000 µW/cm2 power rating. The M27C64A
should be placed within 2.5 cm (1 inch) of the lamp tubes during the erasure. Some lamps
have a filter on their tubes which should be removed before erasure.
10/22
M27C64A
Device operation
Table 2.
Operating Modes(1)
Mode
E
G
P
A9
VPP
Q70-Q0
Read
VIL
VIL
VIH
X
VCC
Data Out
Output Disable
VIL
VIH
VIH
X
VCC
Hi-Z
Program
VIL
X
VIL Pulse
X
VPP
Data Input
Verify
VIL
VIL
VIH
X
VPP
Data Output
Program Inhibit
VIH
X
X
X
VPP
Hi-Z
Standby
VIH
X
X
X
VCC
Hi-Z
Electronic Signature
VIL
VIL
VIH
VID
VCC
Codes
1. X = VIH or VIL, VID = 12V ± 0.5V.
Table 3.
Electronic Signature
Identifier
A0
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
Hex Data
Manufacturer’s
Code
VIL
1
0
0
1
1
0
1
1
9Bh
Device Code
VIH
0
0
0
0
1
0
0
0
08h
11/22
Maximum rating
3
M27C64A
Maximum rating
Stressing the device above the rating listed in the Absolute Maximum Ratings table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of
this specification is not implied. Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
Table 4.
Absolute Maximum Ratings(1)
Symbol
TA
Parameter
Ambient Operating Temperature
(3)
Value
Unit
–40 to 125
°C
TBIAS
Temperature Under Bias
–50 to 125
°C
TSTG
Storage Temperature
–65 to 150
°C
VIO(2)
Input or Output Voltage (except A9)
–2 to 7
V
Supply Voltage
–2 to 7
V
–2 to 13.5
V
–2 to 14
V
VCC
VA9(2)
VPP
A9 Voltage
Program Supply Voltage
1. Minimum DC voltage on Input or Output is –0.5V with possible undershoot to –2.0V for a period less than
20ns. Maximum DC voltage on Output is VCC +0.5V with possible overshoot to VCC +2V for a period less
than 20ns.
2. Depends on range.
12/22
M27C64A
4
DC and AC parameters
DC and AC parameters
This section summarizes the operating and measurement conditions, and the DC and AC
characteristics of the device. The parameters in the DC and AC Characteristic tables that
follow are derived from tests performed under the Measurement Conditions summarized in
the relevant tables. Designers should check that the operating conditions in their circuit
match the measurement conditions when relying on the quoted parameters.
Table 5.
AC Measurement Conditions(1)
≤20ns
Input Rise and Fall Times
Input Pulse Voltages
0.4V to 2.4V
Input and Output Timing Ref. Voltages
0.8 to 2.0V
1. Note that Output Hi-Z is defined as the point where data is no longer driven.
Figure 5.
AC Testing Input Output Waveform
2.4V
2.0V
0.8V
0.4V
AI00826
Figure 6.
AC Testing Load Circuit
1.3V
1N914
3.3kΩ
DEVICE
UNDER
TEST
OUT
CL = 100pF
CL includes JIG capacitance
Table 6.
Capacitance(1)(2)
Symbol
CIN
COUT
AI00828
Parameter
Input Capacitance
Output Capacitance
Test Condition
Min
Max
Unit
VIN = 0V
6
pF
VOUT = 0V
12
pF
1. Sampled only, not 100% tested.
2. TA = 25 °C, f = 1 MHz.
13/22
DC and AC parameters
M27C64A
Read Mode DC Characteristics(1)(2)
Table 7.
Symbol
Parameter
Test Condition
Min
Max
Unit
0V ≤VIN ≤VCC
±10
µA
0V ≤VOUT ≤VCC
±10
µA
E = VIL, G = VIL,
IOUT = 0mA, f = 5MHz
30
mA
E = VIH
1
mA
E > VCC – 0.2V
100
µA
VPP = VCC
100
µA
ILI
Input Leakage Current
ILO
Output Leakage Current
ICC
Supply Current
ICC1
Supply Current (Standby) TTL
ICC2
Supply Current (Standby)
CMOS
IPP
Program Current
VIL
Input Low Voltage
–0.3
0.8
V
Input High Voltage
2
VCC + 1
V
0.4
V
VIH
(3)
VOL
VOH
Output Low Voltage
IOL = 2.1mA
Output High Voltage TTL
IOH = –400µA
2.4
V
Output High Voltage CMOS
IOH = –100µA
VCC –
0.7V
1. TA = 0 to 70 °C or –40 to 85 °C: VCC = 5V ± 10%; VPP = VCC.
2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
3. Maximum DC voltage on Output is VCC +0.5V.
Table 8.
Symbol
Programming Mode DC Characteristics(1)(2)
Parameter
Test Condition
Min
VIL ≤VIN ≤VIH
Max
Unit
±10
µA
30
mA
30
mA
ILI
Input Leakage Current
ICC
Supply Current
IPP
Program Current
VIL
Input Low Voltage
–0.3
0.8
V
VIH
Input High Voltage
2
VCC + 0.5
V
VOL
Output Low Voltage
0.4
V
VOH
Output High Voltage TTL
VID
A9 Voltage
E = VIL
IOL = 2.1mA
IOH = –400µA
2.4
11.5
V
12.5
1. TA = 25 °C; VCC = 6V ± 0.25V; VPP = 12.5V ± 0.25V.
2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
14/22
V
M27C64A
Table 9.
DC and AC parameters
Read Mode AC Characteristics 1(1)(2)
M27C64A
Symbol
Alt
Parameter
Test Condition
-10
Min
tAVQV
tACC
Address Valid to Output
Valid
tELQV
tCE
tGLQV
-15
Max
Min
-20
Max
Min
Unit
Max
E = VIL, G = VIL
100
150
200
ns
Chip Enable Low to
Output Valid
G = VIL
100
150
200
ns
tOE
Output Enable Low to
Output Valid
E = VIL
50
75
80
ns
tEHQZ(3)
tDF
Chip Enable High to
Output Hi-Z
G = VIL
0
50
0
50
0
50
ns
tGHQZ(3)
tDF
Output Enable High to
Output Hi-Z
E = VIL
0
50
0
50
0
50
ns
tAXQX
tOH
Address Transition to
Output Transition
E = VIL, G = VIL
0
0
0
ns
-30
Unit
1. TA = 0 to 70 °C or –40 to 85 °C: VCC = 5V ± 10%; VPP = VCC.
2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
3. Sampled only, not 100% tested.
Table 10.
Read Mode AC Characteristics 2(1)(2)
M27C64A
Symbol
Alt
Parameter
Test Condition
-25
Min
tAVQV
tACC
Address Valid to Output
Valid
tELQV
tCE
tGLQV
Max
Min
Max
E = VIL, G = VIL
250
300
ns
Chip Enable Low to
Output Valid
G = VIL
250
300
ns
tOE
Output Enable Low to
Output Valid
E = VIL
100
120
ns
tEHQZ(3)
tDF
Chip Enable High to
Output Hi-Z
G = VIL
0
60
0
105
ns
tGHQZ(3)
tDF
Output Enable High to
Output Hi-Z
E = VIL
0
60
0
105
ns
tAXQX
tOH
Address Transition to
Output Transition
E = VIL, G = VIL
0
0
ns
1. TA = 0 to 70 °C or –40 to 85 °C: VCC = 5V ± 10%; VPP = VCC.
2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
3. Sampled only, not 100% tested.
15/22
DC and AC parameters
Figure 7.
M27C64A
Read Mode AC Waveforms
A0-A12
VALID
tAVQV
VALID
tAXQX
E
tGLQV
tEHQZ
G
tELQV
Q0-Q7
tGHQZ
Hi-Z
AI00778B
16/22
M27C64A
DC and AC parameters
Programming Mode AC Characteristics(1)(2)
Table 11.
Symbol
Alt
tAVPL
tAS
Address Valid to Program Low
2
µs
tQVPL
tDS
Input Valid to Program Low
2
µs
tVPHPL
tVPS
VPP High to Program Low
2
µs
tVCHPL
tVCS
VCC High to Program Low
2
µs
tELPL
tCES
Chip Enable Low to Program Low
2
µs
tPLPH
tPW
tPHQX
tDH
Program High to Input Transition
2
µs
tQXGL
tOES
Input Transition to Output Enable Low
2
µs
tGLQV
tOE
Output Enable Low to Output Valid
tDFP
Output Enable High to Output Hi-Z
0
tAH
Output Enable High to Address
Transition
0
tGHQZ
(3)
tGHAX
Parameter
Test Condition
Min
Max
Unit
Program Pulse Width (Initial)
0.95
1.05
ms
Program Pulse Width (Over Program)
2.85
78.75
ms
100
ns
130
ns
ns
1. TA = 25 °C; VCC = 6V ± 0.25V; VPP = 12.5V ± 0.25V.
2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
3. Sampled only, not 100% tested.
Figure 8.
Programming and Verify Modes AC Waveforms
VALID
A0-A12
tAVPL
Q0-Q7
DATA IN
tQVPL
DATA OUT
tPHQX
VPP
tVPHPL
tGLQV
tGHQZ
VCC
tVCHPL
tGHAX
E
tELPL
P
tPLPH
tQXGL
G
PROGRAM
VERIFY
AI00779
17/22
Package mechanical data
M27C64A
5
Package mechanical data
Figure 9.
FDIP28W - 28 pin Ceramic Frit-seal DIP, with window, Package Outline
A2
A3
A
A1
B1
B
L
e
α
eA
D2
C
eB
D
S
N
∅
E1
E
1
FDIPW-a
1. Drawing is not to scale.
Table 12.
FDIP28W - 28 pin Ceramic Frit-seal DIP, with window, Package Mechanical Data
millimeters
inches
Symbol
Typ
Min
A
Typ
Min
5.72
Max
0.225
A1
0.51
1.40
0.020
0.055
A2
3.91
4.57
0.154
0.180
A3
3.89
4.50
0.153
0.177
B
0.41
0.56
0.016
0.022
–
–
–
–
C
0.23
0.30
0.009
0.012
D
36.50
37.34
1.437
1.470
B1
1.45
0.057
D2
33.02
–
–
1.300
–
–
E
15.24
–
–
0.600
–
–
13.06
13.36
0.514
0.526
E1
e
2.54
–
–
0.100
–
–
eA
14.99
–
–
0.590
–
–
eB
16.18
18.03
0.637
0.710
L
3.18
4.10
0.125
0.161
S
1.52
2.49
0.060
0.098
–
–
–
–
α
4°
11°
4°
11°
N
28
∅
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Max
7.11
0.280
28
M27C64A
Package mechanical data
Figure 10. PLCC32 - 32 lead Plastic Leaded Chip Carrier, Package Outline
D
D1
A1
A2
1 N
B1
E2
E3
e
E1 E
F
B
0.51 (.020)
E2
1.14 (.045)
A
D3
R
D2
CP
D2
PLCC-A
1. Drawing is not to scale.
Table 13.
PLCC32 - 32 lead Plastic Leaded Chip Carrier, mechanical data
millimeters
inches
Symbol
Typ
Min
Max
A
3.18
A1
Min
Max
3.56
0.125
0.140
1.53
2.41
0.060
0.095
A2
0.38
–
0.015
–
B
0.33
0.53
0.013
0.021
B1
0.66
0.81
0.026
0.032
CP
Typ
0.10
0.004
D
12.32
12.57
0.485
0.495
D1
11.35
11.51
0.447
0.453
D2
4.78
5.66
0.188
0.223
–
–
–
–
E
14.86
15.11
0.585
0.595
E1
13.89
14.05
0.547
0.553
E2
6.05
6.93
0.238
0.273
D3
7.62
0.300
E3
10.16
–
–
0.400
–
–
e
1.27
–
–
0.050
–
–
0.00
0.13
0.000
0.005
–
–
–
–
F
R
0.89
N
32
0.035
32
19/22
Part numbering
6
M27C64A
Part numbering
Table 14.
Ordering Information Scheme
Example:
M27C64A
-10 K 1
Device Type
M27
Supply Voltage
C = 5V ±10%
Device Function
64A = 64 Kbit (8Kb x8)
Speed
-10 = 100 ns
-15 = 150 ns
-20 = 200 ns
-25 = 250 ns
-30 = 300 ns
Package
F = FDIP28W
K = PLCC32
Temperature Range
1 = 0 to 70 °C
6 = –40 to 85 °C
For a list of available options (Speed, Package, etc...) or for further information on any
aspect of this device, please contact the STMicroelectronics Sales Office nearest to you.
20/22
M27C64A
7
Revision history
Revision history
Table 15.
Document revision history
Date
Revision
March 1998
1.0
First Issue
25-Sep-2000
2.0
AN620 Reference removed
2.1
100ns speed class added
FDIP28W mechanical data clarified (Table 12)
PLCC32 mechanical data and drawing clarified (Table 13, Figure 10)
3
Datasheet converted to new corporate template.
Packages are ECOPACK® compliant.
Tape & Reel and Additional Burn-in options removed from Table 14:
Ordering Information Scheme.
29-Oct-2002
06-Apr-2006
Changes
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M27C64A
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