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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 100A Programming voltage: 12.5V 0.25V High speed programming (less than 1 minute) Electronic signature - Manufacturer Code: 9Bh - Device Code: 08h ECOPACK(R) packages available
1
28

FDIP28W (F)
PLCC32 (K)
April 2006
Rev 3
1/22
www.st.com 1
Contents
M27C64A
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 High-speed programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Program Inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Program Verify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electronic Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Erasure operation (applies to UV EPROMs) . . . . . . . . . . . . . . . . . . . . . . 10
3 4 5 6 7
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
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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
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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. 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
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M27C64A
Summary description
1
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(R) 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. Logic Diagram
VCC VPP
M27C64A
13 A0-A12
8 Q0-Q7
P E G
M27C64A
VSS
AI00834B
Table 1.
A0-A12 Q0-Q7 E G P VPP VCC VSS NC DU
Signal Names
Address Inputs Data Outputs Chip Enable Output Enable Program Program Supply Supply Voltage Ground Not Connected Internally Don't Use
6/22
M27C64A 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
AI00835
Summary description
VCC P NC A8 A9 A11 G A10 E Q7 Q6 Q5 Q4 Q3
Figure 3.
Pin Connections
A7 A12 VPP DU VCC P NC
1 32 A6 A5 A4 A3 A2 A1 A0 NC Q0 A8 A9 A11 NC G A10 E Q7 Q6
9
M27C64A
25
17
Q1 Q2 VSS DU Q3 Q4 Q5
AI00836
7/22
Device operation
M27C64A
2
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 100A. 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 0.1F 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 4.7F 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 VERIFY YES P = 3ms Pulse by n FAIL Last Addr NO ++ Addr
YES CHECK ALL BYTES 1st: VCC = 6V 2nd: VCC = 4.2V
AI01167
9/22
Device operation
M27C64A
2.7
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 25C 5C 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 A. It should be noted that sunlight and some type of fluorescent lamps have wavelengths in the 3000-4000 A 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 A. 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 W/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.
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M27C64A Table 2. Operating Modes(1)
E VIL VIL VIL VIL VIH VIH VIL G VIL VIH X VIL X X VIL P VIH VIH VIL Pulse VIH X X VIH A9 X X X X X X VID
Device operation
Mode Read Output Disable Program Verify Program Inhibit Standby Electronic Signature
VPP VCC VCC VPP VPP VPP VCC VCC
Q70-Q0 Data Out Hi-Z Data Input Data Output Hi-Z Hi-Z Codes
1. X = VIH or VIL, VID = 12V 0.5V.
Table 3.
Electronic Signature
A0 VIL VIH Q7 1 0 Q6 0 0 Q5 0 0 Q4 1 0 Q3 1 1 Q2 0 0 Q1 1 0 Q0 1 0 Hex Data 9Bh 08h
Identifier Manufacturer's Code Device Code
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Maximum rating
M27C64A
3
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.
Symbol TA TBIAS TSTG VIO(2) VCC VA9(2) VPP
Absolute Maximum Ratings(1)
Parameter Ambient Operating Temperature Temperature Under Bias Storage Temperature Input or Output Voltage (except A9) Supply Voltage A9 Voltage Program Supply Voltage
(3)
Value -40 to 125 -50 to 125 -65 to 150 -2 to 7 -2 to 7 -2 to 13.5 -2 to 14
Unit C C C V V V V
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
DC and AC parameters
4
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 0.4V to 2.4V 0.8 to 2.0V
Input Rise and Fall Times Input Pulse Voltages Input and Output Timing Ref. Voltages
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
AI00826
0.4V
Figure 6.
AC Testing Load Circuit
1.3V
1N914
3.3k DEVICE UNDER TEST CL = 100pF
OUT
CL includes JIG capacitance
AI00828
Table 6.
Symbol CIN COUT
Capacitance(1)(2)
Parameter Input Capacitance Output Capacitance Test Condition VIN = 0V VOUT = 0V Min Max 6 12 Unit pF pF
1. Sampled only, not 100% tested. 2. TA = 25 C, f = 1 MHz.
13/22
DC and AC parameters Table 7.
Symbol ILI ILO ICC ICC1 ICC2 IPP VIL VIH
(3)
M27C64A Read Mode DC Characteristics(1)(2)
Parameter Test Condition 0V VIN VCC 0V VOUT VCC E = VIL, G = VIL, IOUT = 0mA, f = 5MHz E = VIH E > VCC - 0.2V VPP = VCC -0.3 2 IOL = 2.1mA IOH = -400A IOH = -100A 2.4 VCC - 0.7V Min Max 10 10 30 1 100 100 0.8 VCC + 1 0.4 Unit A A mA mA A A V V V V
Input Leakage Current Output Leakage Current Supply Current Supply Current (Standby) TTL Supply Current (Standby) CMOS Program Current Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage TTL
VOL VOH
Output High Voltage CMOS
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 ILI ICC IPP VIL VIH VOL VOH VID
Programming Mode DC Characteristics(1)(2)
Parameter Input Leakage Current Supply Current Program Current Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage TTL A9 Voltage IOL = 2.1mA IOH = -400A 2.4 11.5 12.5 E = VIL -0.3 2 Test Condition VIL VIN VIH Min Max 10 30 30 0.8 VCC + 0.5 0.4 Unit A mA mA V V V V V
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
M27C64A Table 9. Read Mode AC Characteristics 1(1)(2)
DC and AC parameters
M27C64A Symbol Alt Parameter Test Condition -10 Min tAVQV tELQV tGLQV tEHQZ(3) tGHQZ(3) tAXQX tACC tCE tOE tDF tDF tOH Address Valid to Output Valid Chip Enable Low to Output Valid Output Enable Low to Output Valid Chip Enable High to Output Hi-Z Output Enable High to Output Hi-Z Address Transition to Output Transition E = VIL, G = VIL G = VIL E = VIL G = VIL E = VIL E = VIL, G = VIL 0 0 0 Max 100 100 50 50 50 0 0 0 -15 Min Max 150 150 75 50 50 0 0 0 -20 Min Max 200 200 80 50 50 ns ns ns ns ns ns 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 Min
-25 Max 250 250 100 0 0 0 60 60 0 0 0 Min
-30 Max 300 300 120 105 105
Unit
tAVQV tELQV tGLQV tEHQZ(3) tGHQZ(3) tAXQX
tACC tCE tOE tDF tDF tOH
Address Valid to Output Valid Chip Enable Low to Output Valid Output Enable Low to Output Valid Chip Enable High to Output Hi-Z Output Enable High to Output Hi-Z Address Transition to Output Transition
E = VIL, G = VIL G = VIL E = VIL G = VIL E = VIL E = VIL, G = VIL
ns ns ns ns ns 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. Read Mode AC Waveforms
VALID tAVQV E tGLQV G tELQV Q0-Q7 tGHQZ tEHQZ tAXQX VALID
M27C64A
A0-A12
Hi-Z
AI00778B
16/22
M27C64A Table 11.
Symbol tAVPL tQVPL tVPHPL tVCHPL tELPL tPLPH tPHQX tQXGL tGLQV tGHQZ
(3)
DC and AC parameters Programming Mode AC Characteristics(1)(2)
Alt tAS tDS tVPS tVCS tCES tPW tDH tOES tOE tDFP tAH Parameter Address Valid to Program Low Input Valid to Program Low VPP High to Program Low VCC High to Program Low Chip Enable Low to Program Low Program Pulse Width (Initial) Program Pulse Width (Over Program) Program High to Input Transition Input Transition to Output Enable Low Output Enable Low to Output Valid Output Enable High to Output Hi-Z Output Enable High to Address Transition 0 0 Test Condition Min 2 2 2 2 2 0.95 2.85 2 2 100 130 1.05 78.75 Max Unit s s s s s ms ms s s ns ns ns
tGHAX
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
A0-A12 tAVPL Q0-Q7 tQVPL VPP tVPHPL VCC tVCHPL E tELPL P tPLPH G tQXGL tGHAX tGLQV tGHQZ DATA IN tPHQX DATA OUT VALID
PROGRAM
VERIFY
AI00779
17/22
Package mechanical data
M27C64A
5
Figure 9.
Package mechanical data
FDIP28W - 28 pin Ceramic Frit-seal DIP, with window, Package Outline
A2 A3 A1 B1 B D2 D S
N 1 FDIPW-a
A L eA eB C
e
E1
E
1. Drawing is not to scale.
Table 12.
Symbol
FDIP28W - 28 pin Ceramic Frit-seal DIP, with window, Package Mechanical Data
millimeters Typ Min Max 5.72 0.51 3.91 3.89 0.41 1.45 - 0.23 36.50 33.02 15.24 - - 13.06 2.54 14.99 - - 16.18 3.18 1.52 7.11 - 4 28 1.40 4.57 4.50 0.56 - 0.30 37.34 - - 13.36 - - 18.03 4.10 2.49 - 11 0.280 0.100 0.590 1.300 0.600 0.057 0.020 0.154 0.153 0.016 - 0.009 1.437 - - 0.514 - - 0.637 0.125 0.060 - 4 28 Typ inches Min Max 0.225 0.055 0.180 0.177 0.022 - 0.012 1.470 - - 0.526 - - 0.710 0.161 0.098 - 11
A A1 A2 A3 B B1 C D D2 E E1 e eA eB L S N
18/22
M27C64A
Package mechanical data
Figure 10. PLCC32 - 32 lead Plastic Leaded Chip Carrier, Package Outline
D D1
1N
A1 A2
B1 E2 E3 E1 E e F 0.51 (.020) 1.14 (.045) D3 R CP A E2 B
D2
D2
PLCC-A
1. Drawing is not to scale.
Table 13.
Symbol
PLCC32 - 32 lead Plastic Leaded Chip Carrier, mechanical data
millimeters Typ Min 3.18 1.53 0.38 0.33 0.66 Max 3.56 2.41 - 0.53 0.81 0.10 12.32 11.35 4.78 7.62 - 14.86 13.89 6.05 10.16 1.27 - - 0.00 0.89 32 - 12.57 11.51 5.66 - 15.11 14.05 6.93 - - 0.13 - 0.035 32 0.400 0.050 0.300 0.485 0.447 0.188 - 0.585 0.547 0.238 - - 0.000 - Typ inches Min 0.125 0.060 0.015 0.013 0.026 Max 0.140 0.095 - 0.021 0.032 0.004 0.495 0.453 0.223 - 0.595 0.553 0.273 - - 0.005 -
A A1 A2 B B1 CP D D1 D2 D3 E E1 E2 E3 e F R N
19/22
Part numbering
M27C64A
6
Part numbering
Table 14.
Example:
Ordering Information Scheme
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
Revision history
7
Revision history
Table 15.
Date March 1998 25-Sep-2000 29-Oct-2002
Document revision history
Revision 1.0 2.0 2.1 First Issue AN620 Reference removed 100ns speed class added FDIP28W mechanical data clarified (Table 12) PLCC32 mechanical data and drawing clarified (Table 13, Figure 10) Datasheet converted to new corporate template. Packages are ECOPACK(R) compliant. Tape & Reel and Additional Burn-in options removed from Table 14: Ordering Information Scheme. Changes
06-Apr-2006
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M27C64A
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