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92A
CY7C291A
CY7C292A/CY7C293A
2K x 8 Reprogrammable PROM
identical, but are packaged in 300-mil (7C291A, 7C293A) and
Features
600-mil wide plastic and hermetic DIP packages (7C292A).
The CY7C293A has an automatic power down feature which
• Windowed for reprogrammability
reduces the power consumption by over 70% when deselect-
• CMOS for optimum speed/power
ed. The 300-mil ceramic package may be equipped with an
erasure window; when exposed to UV light the PROM is
• High speed
erased and can t
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CY7C291A CY7C292A/CY7C293A Selection Guide 7C291A-25 7C291A-35 7C291A-50 7C292A-25 7C292A-35 7C292A-50 7C293A-25 7C293A-35 7C293A-50 7C291A-20 7C291AL-25 7C291AL-35 7C291AL-50 7C292A-20 7C292AL-25 7C292AL-35 7C292AL-50 7C293A-20 7C293AL-25 7C293AL-35 7C293AL-50 Maximum Access Time (ns) 20 25 35 50 Maximum Operating Standard Commercial 120 90 90 90 Current (mA) Military 120 90 90 L Commercial 60 60 60 Standby Current (mA) Commercial 40 30 30 30 7C293A Only Military 40 40 40 Latch-Up Current....
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CY7C291A CY7C292A/CY7C293A [3,4] Electrical Characteristics Over the Operating Range 7C291A-20 7C291A-25 7C291AL-25 7C292A-20 7C292A-25 7C292AL-25 7C293A-20 7C293A-25 7C293AL-25 Parameter Description Test Conditions Min. Max. Min. Max. Min. Max. Unit V Output HIGH Voltage V = Min., I = −4.0 mA 2.4 2.4 2.4 V OH CC OH V Output LOW Voltage V = Min., I = 16.0 mA 0.4 0.4 0.4 V OL CC OL V Input HIGH Voltage Guaranteed Input Logical 2.0 V 2.0 V 2.0 V V IH CC CC CC HIGH Voltage for All Inputs V Input
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CY7C291A CY7C292A/CY7C293A [3,4] Electrical Characteristics Over the Operating Range (continued) 7C291AL-35, 50 7C291A-35, 50 7C292AL-35, 50 7C292A-35, 50 7C293AL-35, 50 7C293A-35, 50 Parameter Description Test Conditions Min. Max. Min. Max. Unit V Output HIGH Voltage V = Min., I = −4.0 mA 2.4 2.4 V OH CC OH V Output LOW Voltage V = Min., I = 16.0 mA 0.4 0.4 V OL CC OL V Input HIGH Voltage Guaranteed Input Logical 2.0 2.0 V IH HIGH Voltage for All Inputs V Input LOW Voltage Guaranteed Input Lo
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CY7C291A CY7C292A/CY7C293A [4] AC Test Loads and Waveforms R1250 Ω R1250 Ω 5V 5V ALL INPUT PULSES OUTPUT OUTPUT 3.0V 90% 90% 10% R2 R2 10% 30pF 5pF GND 167Ω 167Ω <5ns <5 ns INCLUDING INCLUDING JIG AND JIG AND C291A-4 C291A-5 SCOPE SCOPE (a) Normal Load (b) HighZ Load Equivalent to: THÉVE NIN EQUIVALENT 100Ω C291A-6 OUTPUT 2.0V t PU t PD V CC SUPPLY 50% 50% CURRENT A − A 0 10 ADDRESS CS − CS 2 3 CS 1 t t t AA HZCS ACS O -O 0 7 C291A-7 [3, 4] Switching Characteristics Over the Operating Range 7C
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CY7C291A CY7C292A/CY7C293A [3, 4] Switching Characteristics Over the Operating Range 7C291A-25 7C291A-35 7C291A-50 7C292A-25 7C292A-35 7C292A-50 7C293A-25 7C293A-35 7C293A-50 7C291A-20 7C291AL-25 7C291AL-35 7C291AL-50 7C292A-20 7C292AL-25 7C292AL-35 7C292AL-50 7C293A-20 7C293AL-25 7C293AL-35 7C293AL-50 Parameter Description Min. Max. Min. Max. Min. Max. Min. Max. Unit Notes: 6. t and t refer to 7C293A CS only. HZCS2 ACS2 1 These PROMs need to be within 1 inch of the lamp during Erasure Charact
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CY7C291A CY7C292A/CY7C293A DIP LCC/PLCC (Opaque Only) Top View Top View A 24 1 V 7 CC A 6 23 A 2 8 32 1 2827 4 26 A 22 A 25 A 5 3 9 A 10 4 5 7C291A V A 24 PP A 21 A 3 6 4 4 10 7C291A 7C292A A VFY 23 2 7 A 20 V 3 5 PP 7C293A A PGM 1 22 8 A 2 19 VFY 6 A 21 NC 0 9 7C293A A NC 20 D 18 PGM 10 1 7 7 D 19 D 0 11 6 A 0 17 D 8 7 121314151617 18 D 16 D 0 6 9 D D 1 10 15 5 D D 2 11 14 4 GND D 12 13 3 C291A-9 C291A-8 Figure 1. Programming Pinouts Typical DC and AC Characteristics NORMALIZED SUPPLY CURRENT
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CY7C291A CY7C292A/CY7C293A Typical DC and AC Characteristics OUTPUT SINK CURRENT I vs. CYCLEPERIOD vs. OUTPUT VOLTAGE CC 175 1.02 150 1.00 V =5.5V CC 125 0.98 ° T =25 C A 100 0.96 75 0.94 V =5.0V CC 50 T =25°C 0.92 A 25 0.90 0 0.88 0.0 1.0 2.0 3.0 4.0 025 50 75 100 OUTPUT VOLTAGE (V) CYCLEPERIOD (ns) C291A-11 [9] Ordering Information Speed I Package Operating CC (ns) (mA) Ordering Code Name Package Type Range 20 120 CY7C291A-20JC J64 28-Lead Plastic Leaded Chip Carrier Commercial CY7C291A-20PC
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CY7C291A CY7C292A/CY7C293A [9] Ordering Information (Continued) Speed I Package Operating CC (ns) (mA) Ordering Code Name Package Type Range CY7C291AL-35PC P13 24-Lead (300-Mil) Molded DIP CY7C291AL-35WC W14 24-Lead (300-Mil) Windowed CerDIP 90 CY7C291A-35SC S13 24-Lead Molded SOIC Commercial CY7C291A-35PC P13 24-Lead (300-Mil) Molded DIP CY7C291A-35WC W14 24-Lead (300-Mil) Windowed CerDIP 120 CY7C291A-35DMB D14 24-Lead (300-Mil) CerDIP Military CY7C291A-35LMB L64 28-Square Leadless Chip Carri
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CY7C291A CY7C292A/CY7C293A [9] Ordering Information (Continued) Speed I Package Operating CC (ns) (mA) Ordering Code Name Package Type Range 50 60 CY7C291AL-50JC J64 28-Lead Plastic Leaded Chip Carrier Commercial CY7C291AL-50PC P13 24-Lead (300-Mil) Molded DIP CY7C291AL-50WC W14 24-Lead (300-Mil) Windowed CerDIP 90 CY7C291A-50SC S13 24-Lead Molded SOIC Commercial CY7C291A-50PC P13 24-Lead (300-Mil) Molded DIP CY7C291A-50WC W14 24-Lead (300-Mil) Windowed CerDIP 90 CY7C291A-50DMB D14 24-Lead (30
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CY7C291A CY7C292A/CY7C293A [9] Ordering Information (Continued) Speed I Package Operating CC (ns) (mA) Ordering Code Name Package Type Range 30 120 CY7C293A-30DMB D14 24-Lead (300-Mil) CerDIP Military CY7C293A-30LMB L64 28-Square Leadless Chip Carrier CY7C293A-30QMB Q64 28-Pin Windowed Leadless Chip Carrier CY7C293A-30WMB W14 24-Lead (300-Mil) Windowed CerDIP 35 60 CY7C293AL-35PC P13 24-Lead (300-Mil) Molded DIP Commercial CY7C293AL-35WC W14 24-Lead (300-Mil) Windowed CerDIP 90 CY7C293A-35PC P
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CY7C291A CY7C292A/CY7C293A MILITARY SPECIFICATIONS SMD Cross Reference Group A Subgroup Testing SMD Cypress Number Suffix Number DC Characteristics 5962-87650 01KX CY7C291-50TMB Parameter Subgroups 5962-87650 01LX CY7C291-50WMB V 1, 2, 3 OH 5962-87650 013X CY7C291-50QMB V 1, 2, 3 OL 5962-87650 03KX CY7C291-35TMB V 1, 2, 3 IH 5962-87650 03LX CY7C291-35WMB V 1, 2, 3 IL 5962-87650 033X CY7C291-35QMB I 1, 2, 3 IX 5962-88680 01LX CY7C293A-50WMB I 1, 2, 3 OZ 5962-88680 01KX CY7C293A-50TMB I 1, 2, 3
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CY7C291A CY7C292A/CY7C293A Package Diagrams 24-Lead (600-Mil) CerDIP D12 28-Square Leadless ChipCarrier L64 MIL-STD-1835 D- 3 Config.A MIL-STD-1835 C-4 24-Lead (300-Mil) CerDIP D14 MIL-STD-1835 D- 9Config.A 13
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CY7C291A CY7C292A/CY7C293A Package Diagrams (Continued) 24-Lead (600-Mil) Molded DIP P11 24-Lead (300-Mil) Molded DIP P13/P13A 14
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CY7C291A CY7C292A/CY7C293A Package Diagrams (Continued) 28-Pin Windowed Leadless ChipCarrier Q64 MIL-STD-1835 C-4 24-Lead (300-Mil) Molded SOIC S13 © Cypress Semiconductor Corporation, 1993. 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 Semi
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CY7C291A CY7C292A/CY7C293A Package Diagrams (Continued) 24-Lead Windowed Cerpack T73 24-Lead (300-Mil) WindowedCerDIP W14 MIL-STD-1835 D- 9 Config.A 16
