66 CY7C266 8Kx8 Power-Switched and Reprogrammable PROM Features Functional Description • CMOS for optimum speed/power • Windowed for reprogrammability • High speed — 20 ns (commercial) — 25 ns (military) • Low power — 660 mW (commercial) The CY7C266 is a high-performance 8192 word by 8 bit CMOS PROM. When deselected, the CY7C266 automatically powers down into a low-power standby mode. It is packaged in a 600-mil-wide package. The reprogrammable packages are equipped with an erasure window; when exposed to UV light, these PROMs are erased and can then be reprogrammed. The memory cells utilize proven EPROM floating-gate technology and byte-wide intelligent programming algorithms. — 770 mW (military) • Super low standby power — Less than 85 mW when deselected • EPROM technology 100% programmable • 5V ±10% VCC, commercial and military • TTL-compatible I/O • Direct replacement for 27C64 EPROMs The CY7C266 is a plug-in replacement for EPROM devices. The EPROM cell requires only 12.5V for the super voltage and low-current requirements allow for gang programming. The EPROM cells allow for each memory location to be tested 100%, as each location is written into, erased, and repeatedly exercised prior to encapsulation. Each PROM is also tested for AC performance to guarantee that after customer programming, the product will meet DC and AC specification limits. Reading is accomplished by placing an active LOW signal on OE and CE. The contents of the memory location addressed by the address lines (A0 through A12) will become available on the output lines (O0 through O7). Logic Block Diagram Pin Configurations CerDIP Top View O7 A0 VCC A12 A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 GND A1 A2 A3 ROW ADDRESS PROGRAMMABLE ARRAY O6 MULTIPLEXER A4 O5 A5 A6 A7 ADDRESS DECODER O4 COLUMN ADDRESS O3 A8 A9 A10 1 2 3 4 5 6 7 8 9 7C266 10 11 12 13 28 27 26 14 15 25 24 23 22 21 20 19 18 17 16 VCC VCC NC A8 A9 A11 OE A10 CE O7 O6 O5 O4 O3 LCC Top View A12 A7 A 12 VCC NC VCC VCC NC A11 O2 A6 A5 A4 A3 A2 A1 A0 NC O0 POWER DOWN O1 O0 OE Cypress Semiconductor Corporation Document #: 38-04005 Rev. ** A8 A9 A11 NC OE A10 CE O7 O6 O1 O2 GND NC O3 O4 O5 CE 4 3 2 1 32 31 30 29 5 28 6 27 7 26 8 25 9 24 10 23 11 7C266 22 12 21 13 14151617 181920 • 3901 North First Street • San Jose • CA 95134 • 408-943-2600 Revised March 4, 2002 CY7C266 Selection Guide 7C266-20 7C266-25 7C266-35 7C266-45 20 25 35 45 120 120 100 100 Maximum Access Time (ns) Maximum Operating Current (mA) Commercial Maximum Standby Current (mA) Commercial Military 140 15 120 15 Military 15 15 15 15 Maximum Ratings Static Discharge Voltage .......................................... > 2001V (per MIL-STD-883, Method 3015) (Above which the useful life may be impaired. For user guidelines, not tested.) Latch-Up Current.................................................... > 200 mA Storage Temperature ................................. –65°C to +150°C Ambient Temperature with Power Applied............................................. –55°C to +125°C Supply Voltage to Ground Potential (Pin 28 to Pin 14) ........................................... –0.5V to +7.0V DC Voltage Applied to Outputs in High Z State ............................................... –0.5V to +7.0V DC Input Voltage............................................ –3.0V to +7.0V UV Exposure ................................................ 7258 Wsec/cm2 Operating Range Ambient Temperature VCC Commercial 0°C to +70°C 5V ± 10% Industrial[1] –40°C to +85°C 5V ± 10% –55°C to +125°C 5V ± 10% Range [2] Military DC Program Voltage .....................................................13.0V Electrical Characteristics Over the Operating Range[3,4] 7C266-20 Parameter VOH VOL Description Output HIGH Voltage Output LOW Voltage Test Conditions Min. VCC = Min., IOH = −2.0 mA Com’l VCC = Min., IOL = 8.0 mA Com’l VCC = Min., IOL = 6.0 mA Mil 7C266-25 Max. 2.4 Min. 2.4 Mil Unit V 2.4 0.4 0.4 V 0.4 VIH Input HIGH Voltage VIL Input LOW Voltage 2.0 2.0 IIX Input Current VCD Input Diode Clamp Voltage IOZ Output Leakage Current VOL < VOUT < VOH, Output Disabled –40 +40 IOS Output Short Circuit Current[5] VCC = Max., VOUT = GND –20 –90 ICC Power Supply Current VCC = Max., VIN = 2.0V, IOUT = 0 mA Com’l ISB Standby Supply Current Chip Enable Inactive, CE > VIH, IOUT = 0 mA Com’l 0.8 GND < VIN < VCC Max. –10 +10 V 0.8 V +10 µA –40 +40 µA –20 –90 mA 120 mA –10 Note 5 120 Mil 140 15 Mil 15 mA 15 Notes: 1. Contact a Cypress representative regarding industrial temperature range specification. 2. TA is the “instant on” case temperature. 3. See the last page of this specification for Group A subgroup testing information. 4. See the “Introduction to CMOS PROMs” section of the Cypress Data Book for general information on testing. 5. For test purposes, not more than one output at a time should be shorted. Short circuit test duration should not exceed 30 seconds. Document #: 38-04005 Rev. ** Page 2 of 11 CY7C266 Electrical Characteristics Over the Operating Range[3,4] (continued) 7C266-35 Parameter Description Test Conditions Min. Max. VOH Output HIGH Voltage VCC = Min., IOH = −4.0 mA VOL Output LOW Voltage VCC = Min., IOL = 16.0 mA VIH Input HIGH Voltage VIL Input LOW Voltage IIX Input Current VCD Input Diode Clamp Voltage IOZ Output Leakage Current VOL < VOUT < VOH, Output Disabled –10 +10 IOS Output Short Circuit Current[5] VCC = Max., VOUT = GND –20 –90 ICC Power Supply Current VCC = Max., VIN = 2.0V, IOUT = 0 mA Com’l Chip Enable Inactive, CE > VIH, IOUT = 0 mA Com’l ISB 2.4 7C266-45 Min. 0.4 2.0 –10 +10 Unit V 0.4 V 2.0 0.8 GND < VIN < VCC Max. 2.4 V 0.8 V +10 µA –10 +10 µA –20 –90 mA 100 mA –10 Note 5 Standby Supply Current 100 Mil 120 15 Mil 15 mA 15 Capacitance[4] Parameter Description CIN Input Capacitance COUT Output Capacitance Document #: 38-04005 Rev. ** Test Conditions TA = 25°C, f = 1 MHz, VCC = 5.0V Max. Unit 10 pF 10 pF Page 3 of 11 CY7C266 AC Test Loads and Waveforms Test Load for -20 through -25 speeds R1 500Ω (658Ω MIL) R1 500 (658Ω MIL) 5V 5V OUTPUT 3.0V OUTPUT R2 333Ω (403Ω MIL) 30 pF < 5 ns < 5 ns INCLUDING JIG AND SCOPE INCLUDING JIG AND SCOPE (a) NormalLoad Equivalent to: GND R2 333Ω (403Ω MIL) 5 pF 90% 10% 90% 10% (b) HighZ Load THÉ VENIN EQUIVALENT OUTPUT RTH 200 250 MIL Test Load for -35 through -45 speeds R1250 Ω R1 250Ω 5V 5V OUTPUT OUTPUT R2167 Ω 30pF INCLUDING JIG AND SCOPE INCLUDING JIG AND SCOPE (c) Normal Load Equivalent to: R2167 Ω 5 pF (d) High Z Load THÉ VENIN EQUIVALENT OUTPUT RTH 100Ω 2.0V Switching Characteristics Over the Operating Range[2,3,4] 7C266-20 Parameter Description Min. Max. 7C266-25 Min. Max. 7C266−35 Min. Max. 7C266-45 Min. Max. Unit tAA Address to Output Valid 20 25 35 45 ns tHZCE Chip Enable Inactive to High Z 25 30 40 45 ns tHZOE Output Enable Inactive to High Z 12 12 20 20 ns tAOE Output Enable Active to Output Valid 12 12 20 20 ns tACE Chip Enable Active to Output Valid 45 ns tOHA Data Hold from Address Change tPU Chip Enable Active to Power-Up 25 30 40 45 ns tPD Chip Enable Inactive to Power-Down 25 30 40 45 ns 25 3 30 3 40 3 3 ns Erasure Characteristics is exposed to sunlight or fluorescent lighting for extended periods of time. Wavelengths of light less than 4000 angstroms begin to erase the devices in the windowed package. For this reason, an opaque label should be placed over the window if the EPROM The recommended dose of ultraviolet light for erasure is a wavelength of 2537 angstroms for a minimum dose (UV intensity multiplied by exposure time) of 25 Wsec/cm2. For an ultra- Document #: 38-04005 Rev. ** Page 4 of 11 CY7C266 violet lamp with a 12 mW/cm2 power rating, the exposure time would be approximately 35 minutes. The CY7C266 needs to be within 1 inch of the lamp during erasure. Permanent damage may result if the EPROM is exposed to high-intensity UV light for an extended period of time. Programming Modes Programming support is available from Cypress as well as from a number of third party software vendors. For detailed programming information, including a listing of software packages, please see the PROM Programming Information located at the end of this section. Programming algorithms can be obtained from any Cypress representative. 7258 Wsec/cm2 is the recommended maximum dosage. Table 1. Mode Selection Pin Function[6, 7] Normal Operation A8 A9 A10 A11 A12 CE OE D7 − D0 Program VFY PGM LAT NA NA CE VPP D7 − D0 Read A8 A9 A10 A11 A12 VIL VIL O7 − O0 Standby X X X X X VIH X Three−Stated Mode A8 A9 A10 A11 A12 VIL VIH Three−Stated VIHP VILP VILP VILP VILP VILP VPP D7 − D0 Program Verify VILP VIHP VILP VILP VILP VILP VPP O7 − O0 Program Inhibit VIHP VIHP VILP VILP VILP VILP VPP Three−Stated Blank Check VILP VIHP VILP VILP VILP VILP VPP O7 − O0 Output Disable Program Notes: 6. X = “don’t care” but must not exceed VCC + 5%. 7. Address A8 − A12 must be latched through lines A0 − A4 in Programming modes. CerDIP Top View 28 27 26 25 24 23 22 21 14 15 20 19 18 17 16 VPP NC NC VFY PGM NA VPP LAT CE D7 D6 D5 D4 D3 A7 NA VCC NC VCC VCC NC 1 2 3 4 5 6 7C266 7 8 9 10 11 12 13 A6 A5 A4/A12 A3/A11 A2/A1 A1/A90 A0/A8 NC D0 4 3 2 1 32 31 30 29 5 28 6 7C266 27 7 26 8 25 9 24 10 23 11 22 12 21 13 14151617 181920 VFY PGM NA NC VPP LAT CE D7 D6 D1 D2 VSS NC D3 D4 D5 NC NA A7 A6 A5 A4/A 12 A3/A 11 A2/A 10 A1 /A9 A0 /A8 D0 D1 D2 VSS LCC/PLCC Top View Figure 1. Programming Pinout Document #: 38-04005 Rev. ** Page 5 of 11 CY7C266 Typical DC and AC Characteristics NORMALIZED SUPPLY CURRENT vs. AMBIENT TEMPERATURE NORMALIZED SUPPLY CURRENT vs. SUPPLY VOLTAGE 1.2 1.0 TA =25°C f = fMAX 0.8 4.5 5.0 5.5 1.1 1.0 0.9 0.8 −55 6.0 25 SUPPLY VOLTAGE(V) 1.6 1.4 1.2 1.0 0.8 25 125 OUTPUT SINK CURRENT (mA) TA =25°C 0.4 4.0 35 50 30 40 30 20 10 0 5.0 1.0 2.0 3.0 6.0 20 15 10 VCC =4.5V TA =25°C 5 0 5.5 25 4.0 0 0 OUTPUT VOLTAGE (V) 200 400 600 800 1000 CAPACITANCE (pF) NORMALIZED SUPPLY CURRENT vs. CYCLE PERIOD 175 1.05 150 1.00 125 100 75 VCC =5.0V TA =25°C 50 4.5 TYPICAL ACCESS TIME CHANGE vs. OUTPUT LOADING 60 OUTPUT SINK CURRENT vs. OUTPUT VOLTAGE 25 VCC =5.5V TA =25°C 0.95 0.90 0.85 0.80 0.75 1.0 2.0 3.0 OUTPUT VOLTAGE (V) Document #: 38-04005 Rev. ** 0.6 OUTPUT SOURCE CURRENT vs. VOLTAGE AMBIENT TEMPERATURE (°C) 0 0.0 0.8 SUPPLY VOLTAGE(V) DELTA tAA (ns) OUTPUT SOURCE CURRENT (mA) NORMALIZED ACCESS TIME vs. TEMPERATURE 0.6 -55 125 1.0 AMBIENT TEMPERATURE(°C) NORMALIZED I CC 0.6 4.0 NORMALIZED ACCESS TIME CC 1.4 NORMALIZED I CC NORMALIZED I 1.2 1.2 1.6 NORMALIZED ACCESS TIME NORMALIZED ACCESS TIME vs. SUPPLY VOLTAGE 4.0 0.70 0 25 50 75 100 CYCLE PERIOD (ns) Page 6 of 11 CY7C266 Ordering Information[8] Speed (ns) 20 25 35 45 Ordering Code Package Name Operating Range Package Type CY7C266−20PC P15 28-Lead (600-Mil) Molded DIP CY7C266−20WC W16 28-Lead (600-Mil) Windowed CerDIP CY7C266−25PC P15 28-Lead (600-Mil) Molded DIP CY7C266−25WC W16 28-Lead (600-Mil) Windowed CerDIP CY7C266−25DMB D16 28-Lead (600-Mil) CerDIP CY7C266−25LMB L55 32-Pin Rectangular Leadless Chip Carrier CY7C266−25QMB Q55 32-Pin Windowed Rectangular Leadless Chip Carrier CY7C266−25WMB W16 28-Lead (600-Mil) Windowed CerDIP CY7C266−35PC P15 28-Lead (600-Mil) Molded DIP CY7C266−35WC W16 28-Lead (600-Mil) Windowed CerDIP CY7C266−45PC P15 28-Lead (600-Mil) Molded DIP CY7C266−45WC W16 28-Lead (600-Mil) Windowed CerDIP CY7C266−45DMB D16 28-Lead (600-Mil) CerDIP CY7C266−45LMB L55 32-Pin Rectangular Leadless Chip Carrier CY7C266−45QMB Q55 32-Pin Windowed Rectangular Leadless Chip Carrier CY7C266−45WMB W16 28-Lead (600-Mil) Windowed CerDIP Commercial Commercial Military Commercial Commercial Military Note: 8. Most of these products are available in industrial temperature range. Contact a Cypress representative for specifications and product availability. MILITARY SPECIFICATIONS Group A Subgroup Testing Switching Characteristics Parameter DC Characteristics Parameter Subgroups VOH 1, 2, 3 VOL 1, 2, 3 VIH 1, 2, 3 VIL 1, 2, 3 IIX 1, 2, 3 IOZ 1, 2, 3 ICC 1, 2, 3 ISB 1, 2, 3 Document #: 38-04005 Rev. ** Subgroups tAA 7, 8, 9, 10, 11 tAOE 7, 8, 9, 10, 11 tACE 7, 8, 9, 10, 11 Page 7 of 11 CY7C266 Package Diagrams 28-Lead (600-Mil) CerDIP D16 MIL-STD-1835 D-10 Config. A 51-80019 32-Pin Rectangular Leadless Chip Carrier L55 MIL-STD-1835 C-12 51-80068 Document #: 38-04005 Rev. ** Page 8 of 11 CY7C266 Package Diagrams (continued) 28-Lead (600-Mil) Molded DIP P15 51-85017-A 32-Pin Windowed Rectangular Leadless Chip Carrier Q55 MIL-STD-1835 C-12 51-80103-*A Document #: 38-04005 Rev. ** Page 9 of 11 CY7C266 Package Diagrams (continued) 28-Lead (600-Mil) Windowed CerDIP W16 MIL-STD-1835 D-10 Config. A Document #: 38-04005 Rev. ** Page 10 of 11 © Cypress Semiconductor Corporation, 2002. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. CY7C266 Document Title: CY7C266 8K x 8 Power Switched and Reprogrammable PROM Document Number: 38-04005 REV. ECN NO. Issue Date Orig. of Change ** 113861 3/8/02 DSG Document #: 38-04005 Rev. ** Description of Change Change from Spec number: 38-00086 to 38-04005 Page 11 of 11