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 ∅ 18/22 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 21/22 M27C64A Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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