STMicroelectronics M27C322-80B1 32 mbit (2mb x16) uv eprom and otp eprom Datasheet

M27C322
32 Mbit (2Mb x16) UV EPROM and OTP EPROM
Feature summary
■
5V ± 10% supply voltage in read operation
■
Access time: 80ns
■
Word-wide configurable
■
32 Mbit mask ROM replacement
■
Low power consumption
– Active current 50mA at 5MHz
– Standby Current 100µA
■
Programming voltage: 12V ± 0.25V
■
Programming time: 50µs/word
■
Electronic signature
– Manufacturer Code: 0020h
– Device Code: 0034h
■
ECOPACK® packages available
42
1
FDIP42W (F)
42
1
PDIP42 (B)
42
1
SDIP42 (S)
March 2006
Rev 3
1/24
www.st.com
1
Contents
M27C322
Contents
1
Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1
Read mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2
Standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3
Two line output control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4
System Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.6
PRESTO III Programming Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.7
Program Inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.8
Program Verify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.9
Electronic Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10
Erasure operation (applies to UV EPROM) . . . . . . . . . . . . . . . . . . . . . . . 10
3
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4
DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5
Package mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6
Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2/24
M27C322
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.
Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electronic Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
AC Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Capacitance (TA = 25 °C, f = 1 MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Read Mode DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Programming Mode DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Read Mode AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
MARGIN MODE AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Programming Mode AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
FDIP42W - 42 pin Ceramic Frit-seal DIP, with window (0.370" x 0.450"),
package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
PDIP42 - 42 pin Plastic DIP, 600 mils width, package mechanical data . . . . . . . . . . . . . . 20
SDIP42 - 42 pin Shrink Plastic DIP, 600 mils width, package mechanical data . . . . . . . . . 21
Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3/24
List of figures
M27C322
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.
4/24
Logic Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DIP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Programming Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
AC Testing Input Output Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
AC Testing Load Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Read Mode AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
MARGIN MODE AC Waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Programming and Verify Modes AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
FDIP42W - 42 pin Ceramic Frit-seal DIP, with window (0.370" x 0.450"),
package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
PDIP42 - 42 pin Plastic DIP, 600 mils width, package outline . . . . . . . . . . . . . . . . . . . . . . 20
SDIP42 - 42 pin Shrink Plastic DIP, 600 mils width, package outline. . . . . . . . . . . . . . . . . 21
M27C322
1
Summary description
Summary description
The M27C322 is a 32 Mbit EPROM offered in the UV range (ultra violet erase). It is ideally
suited for microprocessor systems requiring large data or program storage. It is organised
as 2 MWords of 16 bit. The pin-out is compatible with a 32 Mbit Mask ROM.
The FDIP42W (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 rapidly to the device by following the programming procedure.
For applications where the content is programmed only one time and erasure is not
required, the M27C322 is offered in PDIP42 and SDIP42 packages.
In order to meet environmental requirements, ST offers the M27C322 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
21
16
A0-A20
E
Q0-Q15
M27C322
GVPP
VSS
AI02156
Table 1.
Signal Names
A0-A20
Address Inputs
Q0-Q15
Data Outputs
E
Chip Enable
GVPP
Output Enable / Program Supply
VCC
Supply Voltage
VSS
Ground
5/24
Summary description
Figure 2.
M27C322
DIP Connections
A18
A17
A7
A6
A5
A4
A3
A2
A1
A0
E
VSS
GVPP
Q0
Q8
Q1
Q9
Q2
Q10
Q3
Q11
1
42
41
2
40
3
39
4
5
38
6
37
7
36
8
35
9
34
10
33
M27C322
11
32
12
31
13
30
14
29
15
28
16
27
17
26
18
25
19
24
20
23
21
22
AI02157
6/24
A19
A8
A9
A10
A11
A12
A13
A14
A15
A16
A20
VSS
Q15
Q7
Q14
Q6
Q13
Q5
Q12
Q4
VCC
M27C322
2
Device operation
Device operation
The operating modes of the M27C322 are listed in the Operating Modes Table. A single
power supply is required in the read mode. All inputs are TTL compatible except for VPP and
12V on A9 for the Electronic Signature.
2.1
Read mode
The M27C322 has a word-wide organization. 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 GVPP,
assuming that E has been low and the addresses have been stable for at least tAVQV-tGLQV.
2.2
Standby mode
The M27C322 has a standby mode which reduces the supply current from 50mA to 100µA.
The M27C322 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 GVPP 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:
1.
the lowest possible memory power dissipation,
2.
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 GVPP 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.
7/24
Device operation
2.4
M27C322
System Considerations
The power switching characteristics of Advanced CMOS EPROMs require careful
decoupling of the supplies to the devices. The supply current ICC has three segments of
importance to the system designer: the standby current, the active current and the transient
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 outputs.
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 is used on every device between VCC and VSS. This should be a
high frequency type of low inherent inductance and should be placed as close as possible to
the device. In addition, a 4.7µF electrolytic capacitor should be used between VCC and VSS
for every eight devices. This capacitor should be mounted near the power supply connection
point. The purpose of this 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 M27C322 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 M27C322 is in the programming mode when VPP input is at 12.V, GVPP is at VIH and E
is pulsed to VIL. The data to be programmed is applied to 16 bits in parallel to the data
output pins. The levels required for the address and data inputs are TTL. VCC is specified to
be 6.25V ± 0.25V.
2.6
PRESTO III Programming Algorithm
The PRESTO III Programming Algorithm allows the whole array to be programed with a
guaranteed margin in a typical time of 100 seconds. Programming with PRESTO III consists
of applying a sequence of 50µs program pulses to each word until a correct verify occurs
(see Figure 3). During programing and verify operation a MARGIN MODE circuit must be
activated to guarantee that each cell is programed with enough margin. No overprogram
pulse is applied since the verify in MARGIN MODE provides the necessary margin to each
programmed cell.
8/24
M27C322
Device operation
Figure 3.
Programming Flowchart
VCC = 6.25V, VPP = 12V
SET MARGIN MODE
n=0
E = 50µs Pulse
NO
++n
= 25
YES
FAIL
NO
VERIFY
++ Addr
YES
Last
Addr
NO
YES
RESET MARGIN MODE
CHECK ALL WORDS
1st: VCC = 6V
2nd: VCC = 4.2V
AI02206
2.7
Program Inhibit
Programming of multiple M27C322s in parallel with different data is also easily
accomplished. Except for E, all like inputs including GVPP of the parallel M27C322 may be
common. A TTL low level pulse applied to a M27C322's E input and VPP at 12V, will
program that M27C322. A high level E input inhibits the other M27C322s 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 GVPP at VIL. Data should be verified
with tELQV after the falling edge of E.
9/24
Device operation
2.9
M27C322
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 M27C322. To activate
the ES mode, the programming equipment must force 11.5V to 12.5V on address line A9 of
the M27C322, 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 M27C322, these two identifier bytes are given in
Table 3. and can be read-out on outputs Q0 to Q7.
2.10
Erasure operation (applies to UV EPROM)
The erasure characteristics of the M27C322 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 M27C322 in about 3 years, while it would take approximately 1 week to
cause erasure when exposed to direct sunlight. If the M27C322 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 M27C322 window to prevent unintentional erasure. The recommended
erasure procedure for M27C322 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 30 W-sec/cm2. The erasure time with this dosage is approximately
30 to 40 minutes using an ultraviolet lamp with 12000 µW/cm2 power rating. The M27C322
should be placed within 2.5cm (1 inch) of the lamp tubes during the erasure. Some lamps
have a filter on their tubes which should be removed before erasure.
10/24
M27C322
Device operation
Operating Modes(1)
Table 2.
Mode
E
GVPP
A9
Q15-Q0
Read
VIL
VIL
X
Data Out
Output Disable
VIL
VIH
X
Hi-Z
VIL Pulse
VPP
X
Data In
Program Inhibit
VIH
VPP
X
Hi-Z
Standby
VIH
X
X
Hi-Z
Electronic Signature
VIL
VIL
VID
Codes
Program
1. X = VIH or VIL, VID = 12V ± 0.5V.
Table 3.
Electronic Signature(1)
Identifier
A0
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
Hex Data
Manufacturer’s
Code
VIL
0
0
1
0
0
0
0
0
20h
Device Code
VIH
0
0
1
1
0
1
0
0
34h
1. Outputs Q15-Q8 are set to '0'.
11/24
Maximum rating
3
M27C322
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
Symbol
TA
Parameter
Ambient Operating
Temperature(1)
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. Depends on range.
2. 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.
12/24
M27C322
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
High Speed
Standard
Input Rise and Fall Times
≤10ns
≤20ns
Input Pulse Voltages
0 to 3V
0.4V to 2.4V
1.5V
0.8V and 2V
Input and Output Timing Ref.
Voltages
Figure 4.
AC Testing Input Output Waveform
High Speed
3V
1.5V
0V
Standard
2.4V
0.4V
2.0V
0.8V
AI01822
13/24
DC and AC parameters
Figure 5.
M27C322
AC Testing Load Circuit
1.3V
1N914
3.3kΩ
DEVICE
UNDER
TEST
OUT
CL
CL = 30pF for High Speed
CL = 100pF for Standard
CL includes JIG capacitance
Table 6.
Symbol
CIN
COUT
Capacitance (TA = 25 °C, f = 1 MHz)(1)
Parameter
Input Capacitance
Output Capacitance
1. Sampled only, not 100% tested.
14/24
AI01823B
Test Condition
Min
Max
Unit
VIN = 0V
10
pF
VOUT = 0V
12
pF
M27C322
DC and AC parameters
Table 7.
Symbol
Read Mode DC Characteristics (1) (2)
Parameter
ILI
Input Leakage Current
ILO
Output Leakage Current
ICC
Test Condition
Min
Max
Unit
0v ≤VIN ≤VCC
±1
µA
0V ≤VOUT ≤VCC
±10
µA
E = VIL, GVPP = VIL, IOUT = 0mA,
f = 8MHz
70
mA
E = VIL, GVPP = VIL, IOUT = 0mA,
f = 5MHz
50
mA
E = VIH
1
mA
E > VCC – 0.2V
100
µA
VPP = VCC
10
µA
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
Output Low Voltage
VOH
Output High Voltage TTL
IOL = 2.1mA
IOH = –400µA
2.4
V
1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
2. (TA = 0 to 70 °C, –40 to 85 °C or –40 to 125 °C; VCC = 5V ± 10%; VPP = VCC)
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
50
mA
50
mA
ILI
Input Leakage Current
ICC
Supply Current
IPP
Program Current
VIL
Input Low Voltage
–0.3
0.8
V
VIH
Input High Voltage
2.4
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 = –2.5mA
3.5
11.5
V
12.5
V
1. TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12V ± 0.25V
2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
15/24
DC and AC parameters
Figure 6.
M27C322
Read Mode AC Waveforms
VALID
A0-A20
VALID
tAVQV
tAXQX
E
tEHQZ
tGLQV
GVPP
tGHQZ
tELQV
Hi-Z
Q0-Q15
AI02207
Table 9.
Read Mode AC Characteristics(1) (2)
M27C322
Symbol
Alt
Parameter
-80(3)
Test Condition
-100
Unit
Min Max Min Max
tAVQV
tACC Address Valid to Output Valid
tELQV
tCE
Chip Enable Low to Output
Valid
tGLQV
tOE
Output Enable Low to Output
Valid
tEHQZ(4)
tDF
Chip Enable High to Output
Hi-Z
tGHQZ(4)
tDF
tAXQX
tOH
E = VIL, GVPP = VIL
80
100
ns
GVPP = VIL
80
100
ns
E = VIL
40
50
ns
GVPP = VIL
0
40
0
40
ns
Output Enable High to Output
Hi-Z
E = VIL
0
40
0
40
ns
Address Transition to Output
Transition
E = VIL, GVPP = VIL
5
5
1. (TA = 0 to 70 °C, –40 to 85 °C or –40 to 125 °C; VCC = 5V ± 10%; VPP = VCC)
2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP
3. Speed obtained with High Speed AC measurement conditions.
4. Sampled only, not 100% tested.
16/24
ns
M27C322
DC and AC parameters
Figure 7.
MARGIN MODE AC Waveforms
VCC
A8
A9
tA9HVPH
tVPXA9X
GVPP
tVPHEL
tEXVPX
E
tEXA10X
tA10HEH
A10 Set
A10 Reset
tA10LEH
AI00736B
1. A8 High level = 5V; A9 High level = 12V.
Table 10.
MARGIN MODE AC Characteristics(1) (2)
Parameter
Test
Condition
Symbol
Alt
Min
Max
Unit
tA9HVPH
tAS9
VA9 High to VPP High
2
µs
tVPHEL
tVPS
VPP High to Chip Enable Low
2
µs
tA10HEH
tAS10
VA10 High to Chip Enable High (Set)
1
µs
tA10LEH
tAS10
VA10 Low to Chip Enable High
(Reset)
1
µs
tEXA10X
tAH10
Chip Enable Transition to VA10
Transition
1
µs
tEXVPX
tVPH
Chip Enable Transition to VPP
Transition
2
µs
tVPXA9X
tAH9
VPP Transition to VA9 Transition
2
µs
1. TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12V ± 0.25V)
2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
17/24
DC and AC parameters
Figure 8.
M27C322
Programming and Verify Modes AC Waveforms
VALID
A0-A20
tAVEL
Q0-Q15
tEHAX
DATA IN
DATA OUT
tQVEL
tEHQZ
tEHQX
VCC
tVCHEL
tEHVPX
tELQV
GVPP
tVPHEL
tVPLEL
E
tELEH
PROGRAM
VERIFY
AI02205
1. GVPP High level = 12V.
Table 11.
Programming Mode AC Characteristics(1) (2)
Parameter
Test
Condition
Symbol
Alt
Min
Max
tAVEL
tAS
Address Valid to Chip Enable Low
1
µs
tQVEL
tDS
Input Valid to Chip Enable Low
1
µs
tVCHEL
tVCS
VCC High to Chip Enable Low
2
µs
tVPHEL
tOES
VPP High to Chip Enable Low
1
µs
tVPLVPH
tPRT
VPP Rise Time
50
ns
tELEH
tPW
Chip Enable Program Pulse Width
(Initial)
45
tEHQX
tDH
Chip Enable High to Input Transition
2
µs
tEHVPX
tOEH
Chip Enable High to VPP Transition
2
µs
tVPLEL
tVR
VPP Low to Chip Enable Low
1
µs
tELQV
tDV
Chip Enable Low to Output Valid
tEHQZ(3)
tDFP
Chip Enable High to Output Hi-Z
0
tEHAX
tAH
Chip Enable High to Address Transition
0
55
µs
130
ns
2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
18/24
µs
1
1. TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12V ± 0.25V)
3. Sampled only, not 100% tested.
Unit
ns
M27C322
5
Package mechanical
Package mechanical
Figure 9.
FDIP42W - 42 pin Ceramic Frit-seal DIP, with window (0.370" x 0.450"),
package outline
A2
A1
B1
B
A
L
α
e
C
eA
D2
eB
D
S
N
K
E1
E
K1
1
FDIPW-C
1. Drawing is not to scale.
Table 12.
FDIP42W - 42 pin Ceramic Frit-seal DIP, with window (0.370" x 0.450"),
package mechanical data
millimeters
inches
Symbol
Typ
Min
A
Max
Typ
Min
5.71
Max
0.225
A1
0.50
1.78
0.020
0.070
A2
3.90
5.08
0.154
0.200
B
0.40
0.55
0.016
0.022
B1
1.27
1.52
0.050
0.060
C
0.22
0.31
0.009
0.012
D
54.81
D2
50.80
E
15.24
–
–
2.158
2.000
–
–
0.600
E1
14.50
14.90
0.571
0.587
e
2.29
2.79
0.090
0.110
eA
15.40
15.80
0.606
0.622
eB
16.17
18.32
0.637
0.721
K
9.32
9.47
0.367
0.373
K1
11.30
11.55
0.445
0.455
L
3.18
4.10
0.125
0.161
S
1.52
2.49
0.060
0.098
α
4°
15°
4°
15°
N
42
42
19/24
Package mechanical
M27C322
Figure 10. PDIP42 - 42 pin Plastic DIP, 600 mils width, package outline
A2
A
A1
B1
B
L
α
e1
eA
D2
C
eB
D
S
N
E1
E
1
PDIP
1. Drawing is not to scale.
Table 13.
PDIP42 - 42 pin Plastic DIP, 600 mils width, package mechanical data
millimeters
inches
Symbol
Typ
Min
Max
A
–
A1
Min
Max
5.08
–
0.200
0.25
–
0.010
–
A2
3.56
4.06
0.140
0.160
B
0.38
0.53
0.015
0.021
B1
1.27
1.65
0.050
0.065
C
0.20
0.36
0.008
0.014
D
52.20
52.71
2.055
2.075
D2
50.80
–
–
2.000
–
–
E
15.24
–
–
0.600
–
–
13.59
13.84
0.535
0.545
E1
20/24
Typ
e1
2.54
–
–
0.100
–
–
eA
14.99
–
–
0.590
–
–
eB
15.24
17.78
0.600
0.700
L
3.18
3.43
0.125
0.135
S
0.86
1.37
0.034
0.054
α
0°
10°
0°
10°
N
42
42
M27C322
Package mechanical
Figure 11. SDIP42 - 42 pin Shrink Plastic DIP, 600 mils width, package outline
A2
A
A1
b2
b
L
e
eA
D2
c
eB
D
S
N
E1
E
1
SDIP
1. Drawing is not to scale.
Table 14.
SDIP42 - 42 pin Shrink Plastic DIP, 600 mils width, package mechanical
data
millimeters
inches
Symbol
Typ
Min
A
Max
Typ
Min
5.08
A1
Max
0.200
0.51
0.020
A2
3.81
3.05
4.57
0.150
0.120
0.180
b
0.46
0.38
0.56
0.018
0.015
0.022
b2
1.02
0.89
1.14
0.040
0.035
0.045
c
0.25
0.23
0.38
0.010
0.009
0.015
D
36.83
36.58
37.08
1.450
1.440
1.460
e
1.78
–
–
0.070
–
–
15.24
16.00
0.600
0.630
E
E1
13.72
12.70
14.48
0.540
0.500
0.570
eA
15.24
–
–
0.600
–
–
eB
18.54
L
3.30
S
0.63
N
2.54
3.56
0.730
0.130
0.100
0.140
0.025
42
42
21/24
Part numbering
6
M27C322
Part numbering
Table 15.
Ordering information scheme
Example:
M27C322
-80
F
1
Device Type
M27
Supply Voltage
C = 5V ±10%
Device Function
322 = 32 Mbit (2Mb x16)
Speed
-80(1) = 80 ns
-100 = 100 ns
Package
F = FDIP42W
B = PDIP42
S = SDIP42
Temperature Range
1 = 0 to 70 °C
3 = –40 to 125 °C
6 = –40 to 85 °C
1. High Speed, see AC Characteristics section for further information.
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.
22/24
M27C322
7
Revision history
Revision history
Table 16.
Date
Document revision history
Revision
Changes
July 1999
1
First Issue
24-Feb-2000
2
Programming Time changed
Programming Flowchart changed (Figure 3)
Presto III Programming Algorithm paragraph changed
04-Apr-2000
2.1
–40 to 85 °C and –40 to 125 °C temperature ranges added (Table 7.,
Table 9. and Table 15.)
80ns speed class in High Speed AC measurement conditions
20-Sep-2000
2.2
AN620 Reference removed
29-Nov-2000
2.3
Note changed (Figure 8.)
27-Feb-2001
2.4
SDIP42 Package added (Figure 11., Table 14)
27-Nov-2003
2.5
FDIP42W package lens changed
28-Mar-2006
3
Document converted to new template (sections added, information
moved).
Packages are ECOPACK® compliant.
23/24
M27C322
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