M95640 ST Microelectronics, M95640 Datasheet
M95640
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M95640 Summary of contents
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... Adjustable Size Read-Only EEPROM Area Enhanced ESD Protection More than 100,000 or 1 million Erase/Write Cycles (depending on ordering options) More than 40 Year Data Retention November 2003 64Kbit and 32Kbit Serial SPI Bus EEPROM Figure 1. Packages M95640 M95320 With High Speed Clock 8 1 PDIP8 (BN) 0.25 mm frame 8 ...
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... M95640, M95320 TABLE OF CONTENTS FEATURES SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 1. Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SUMMARY DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 2. Logic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 3. DIP and SO Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 4. TSSOP14 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Table 1. Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 SIGNAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Serial Data Output ( Serial Data Input ( Serial Clock ( Chip Select ( Hold (HOLD Write Protect (W) ...
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... Table 13. DC Characteristics (M95xxx, temperature range Table 14. DC Characteristics (M95xxx, temperature range Table 15. DC Characteristics (M95xxx-W, temperature range Table 16. DC Characteristics (M95xxx-W, temperature range Table 17. DC Characteristics (M95xxx- Table 18. AC Characteristics (M95xxx, temperature range M95640, M95320 3/39 ...
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... M95640, M95320 Table 19. AC Characteristics (M95xxx, temperature range Table 20. AC Characteristics (M95xxx-W, temperature range Table 21. AC Characteristics (M95xxx-W, temperature range Table 22. AC Characteristics (M95xxx- Figure 17. Serial Input Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Figure 18. Hold Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Figure 19. Output Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 PACKAGE MECHANICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Figure 20. PDIP8 – 8 pin Plastic DIP, 0.25mm lead frame, Package Outline . . . . . . . . . . . . . . . . . 33 Table 23. PDIP8 – ...
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... SUMMARY DESCRIPTION These electrically erasable programmable memo- ry (EEPROM) devices are accessed by a high speed SPI-compatible bus. The memory array is organized as 8192 x 8 bit (M95640), and 4096 x 8 bit (M95320). The device is accessed by a simple serial interface that is SPI-compatible. The bus signals are C, D and Q, as shown in Table 1 and Figure 2 ...
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... M95640, M95320 SIGNAL DESCRIPTION During all operations, V must be held stable and CC within the specified valid range (max). CC All of the input and output signals must be held High or Low (according to voltages specified in Tables 13 to 17). These sig- OL nals are described next. ...
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... The difference between the two modes, as shown in Figure 6, is the clock polarity when the bus mas- ter is in Stand-by mode and not transferring data: – C remains at 0 for (CPOL=0, CPHA=0) – C remains at 1 for (CPOL=1, CPHA=1) M95640, M95320 SPI Memory Device S ...
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... M95640, M95320 Figure 6. SPI Modes Supported CPOL CPHA MSB Q 8/39 MSB AI01438B ...
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... The Hold condition ends when the Hold (HOLD) signal is driven High at the same time as Serial Clock (C) already being Low. Figure 7 also shows what happens if the rising and falling edges are not timed to coincide with Serial Clock (C) being Low. Hold Condition M95640, M95320 Hold Condition AI02029D 9/39 ...
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... M95640, M95320 Status Register Figure 8 shows the position of the Status Register in the control logic of the device. The Status Reg- ister contains a number of status and control bits that can be read or set (as appropriate) by specific instructions. WIP bit. The Write In Progress (WIP) bit indicates whether the memory is busy with a Write or Write Status Register cycle ...
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... MEMORY ORGANIZATION The memory is organized as shown in Figure 8. Figure 8. Block Diagram HOLD W Control Logic Address Register and Counter High Voltage Generator I/O Shift Register Data Register 1 Page X Decoder M95640, M95320 Status Register Size of the Read only EEPROM area AI01272C 11/39 ...
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... M95640, M95320 INSTRUCTIONS Each instruction starts with a single-byte code, as summarized in Table invalid instruction is sent (one not contained in Table 4), the device automatically deselects it- self. Figure 9. Write Enable (WREN) Sequence Write Enable (WREN) The Write Enable Latch (WEL) bit must be set pri each WRITE and WRSR instruction ...
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... The device then enters a wait state. It waits for a the device to be deselected, by Chip Select (S) be- ing driven High. The Write Enable Latch (WEL) bit, in fact, be- comes reset by any of the following events: – Power-up – WRDI instruction execution – WRSR instruction completion – WRITE instruction completion. M95640, M95320 13/39 ...
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... M95640, M95320 Figure 11. Read Status Register (RDSR) Sequence Instruction D High Impedance Q Read Status Register (RDSR) The Read Status Register (RDSR) instruction al- lows the Status Register to be read. The Status Register may be read at any time, even while a Write or Write Status Register cycle is in progress. ...
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... Block Protect (BP1, BP0) bits are fro- zen at their current values from just before the start of the execution of Write Status Register (WRSR) instruction. The new, updated, values take effect at the moment of completion of the ex- ecution of Write Status Register (WRSR) instruc- tion. M95640, M95320 AI02282D 15/39 ...
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... Software Protected Mode (SPM), using the Block Protect (BP1, BP0) bits of the Status Register, can be used. Table 6. Address Range Bits Address Bits Note: 1. b15 to b13 are Don’t Care on the M95640. Memory Content 1 Unprotected Area Ready to accept Write ...
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... High. The rising edge of the Chip Select (S) signal can occur at any time during the cycle. The first byte addressed can be any byte within any page. The instruction is not accepted, and is not execut- ed Write cycle is currently in progress. M95640, M95320 Data Out 1 Data Out 2 ...
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... M95640, M95320 Figure 14. Byte Write (WRITE) Sequence Instruction D High Impedance Q Note: Depending on the memory size, as shown in Table 6, the most significant address bits are Don’t Care. Write to Memory Array (WRITE) As shown in Figure 14, to send this instruction to the device, Chip Select (S) is first driven Low. The ...
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... Address Data Byte M95640, M95320 Data Byte Data Byte AI01796D 19/39 ...
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... M95640, M95320 POWER-UP AND DELIVERY STATE Power-up State After Power-up, the device is in the following state: – Stand-by mode – deselected (after Power-up, a falling edge is re- quired on Chip Select (S) before any instruc- tions can be started). – not in the Hold Condition – the Write Enable Latch (WEL) is reset to 0 – ...
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... Exposure to Absolute Maximum Rating con- ditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality docu- ments. Parameter 1 ® 7191395 specifiication for lead-free soldering processes , R2=500 ) M95640, M95320 Min. Max. –65 150 2 PDIP 260 3 SO 260 ...
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... M95640, M95320 DC AND AC PARAMETERS This section summarizes the operating and mea- surement conditions, and the DC and AC charac- teristics of the device. The parameters in the DC and AC Characteristic tables that follow are de- rived from tests performed under the Measure- Table 8. Operating Conditions (M95xxx) Symbol ...
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... Current Product New Product mA –2 mA M95640, M95320 Min. Max Min. Max. ± 2 ± –0. 0.4 ...
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... M95640, M95320 Table 14. DC Characteristics (M95xxx, temperature range 3) Symbol Parameter I Input Leakage Current LI I Output Leakage Current LO I Supply Current CC Supply Current I CC1 (Stand-by) V Input Low Voltage IL V Input High Voltage IH 1 Output Low Voltage Output High Voltage V OH Note: 1. For all 5V range devices, the device meets the output requirements for both TTL and CMOS standards. ...
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... 0.1V /0. MHz 1 open 1 0. –0 M95640, M95320 Unit Min. Max. ± 2 ± –0. 0.4 0 Min. Max. ± 2 ± –0.45 0 ...
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... M95640, M95320 Table 18. AC Characteristics (M95xxx, temperature range 6) Symbol Alt Clock Frequency C SCK Active Setup Time SLCH CSS1 Not Active Setup Time SHCH CSS2 Deselect Time SHSL Active Hold Time CHSH CSH t S Not Active Hold Time ...
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... Note Value guaranteed by characterization, not 100% tested in production. 3. Current product: identified by Process Identification letter S. 4. New product: identified by Process Identification letter B. Test conditions specified in Table 11 and Table 8 Parameter M95640, M95320 Min. Max. Min. Max. D.C. 2 D.C. 5 200 ...
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... M95640, M95320 Table 20. AC Characteristics (M95xxx-W, temperature range 6) Symbol Alt Clock Frequency C SCK Active Setup Time SLCH CSS1 Not Active Setup Time SHCH CSS2 Deselect Time SHSL Active Hold Time CHSH CSH t S Not Active Hold Time ...
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... HLQZ t t Write Time W WC Note Value guaranteed by characterization, not 100% tested in production. 3. New product: identified by Process Identification letter B. Test conditions specified in Table 11 and Table 9 Parameter M95640, M95320 Unit Min. Max. D.C. 5 MHz 100 ...
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... M95640, M95320 Table 22. AC Characteristics (M95xxx-R) Test conditions specified in Table 11 and Table 10 Symbol Alt Clock Frequency C SCK Active Setup Time SLCH CSS1 Not Active Setup Time SHCH CSS2 Deselect Time SHSL Active Hold Time CHSH ...
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... Figure 17. Serial Input Timing S tCHSL C tDVCH D High Impedance Q Figure 18. Hold Timing HOLD tSLCH tCHDX tCLCH MSB IN tHLCH tCHHL tCHHH tHLQZ M95640, M95320 tSHSL tCHSH tSHCH tCHCL LSB IN AI01447C tHHCH tHHQX AI02032 31/39 ...
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... M95640, M95320 Figure 19. Output Timing S C tCLQV tCLQX tCLQX Q ADDR.LSB IN D 32/39 tCH tCLQV tCL tSHQZ LSB OUT tQLQH tQHQL AI01449D ...
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... Min. Max. 5.33 0.38 2.92 4.95 0.36 0.56 1.14 1.78 0.20 0.36 9.02 10.16 7.62 8.26 6.10 7.11 – – – – 10.92 2.92 3.81 M95640, M95320 PDIP-B inches Typ. Min. 0.210 0.015 0.130 0.115 0.195 0.018 0.014 0.022 0.060 0.045 0.070 0.010 0.008 0.014 0.365 0.355 0.400 0.310 0.300 0.325 0.250 0.240 0.280 0.100 – ...
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... M95640, M95320 Figure 21. SO8 narrow – 8 lead Plastic Small Outline, 150 mils body width, Package Outline SO-a Note: Drawing is not to scale. Table 24. SO8 narrow – 8 lead Plastic Small Outline, 150 mils body width, Package Mechanical Data Symb. Typ ...
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... M95640, M95320 TSSOP8AM inches Typ. Min. 0.0020 0.0394 0.0315 0.0075 0.0035 0.1181 0.1142 0.0256 – 0.2520 0.2441 0.1732 ...
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... M95640, M95320 Figure 23. TSSOP14 - 14 lead Thin Shrink Small Outline, Package Outline Notes: 1. Drawing is not to scale. Table 26. TSSOP14 - 14 lead Thin Shrink Small Outline, Package Mechanical Data Symbol Typ 1.000 5.000 e 0.650 E 6.400 E1 4.400 L 0.600 L1 1.000 36/ ...
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... Note: 1. For further information, please ask your ST Sales Office for Process Change Notice PCN MPG/EE/0053 (PCEE0053) and MPG/ EE/0054 (PCEE0054). M95320 – device, please contact your nearest ST Sales Of- fice. 1 Markings on New Products 95640 6 (or 95640W6) 95640 3 (or 95640W3) M95640, M95320 xxxxV xxxxB 37/39 ...
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... M95640, M95320 REVISION HISTORY Table 29. Document Revision History Date Rev. Human Body Model meets JEDEC std (Table 2). Minor adjustments on pp 1,11,15. New clause 13-Jul-2000 1.2 on p7. Addition of TSSOP8 package Ordering Info, Mechanical Data Test condition added CLCH CHCL “-V” Voltage range changed to “2.7V to 3.6V” throughout. ...
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