Instruction/ maintenance manual of the product CY7C291A Cypress
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2K x 8 Reprogrammab le PR OM CY7C291A CY7C292A/CY7C293A Cypress Semicondu ctor Corporation • 3 901 Nor th First Street • San Jose • CA 9513 4 • 408-943-2600 March 1986 – R evise d Ma y 1993 .
CY7C291A CY7C292A/CY7C293A 2 Maxim um Ratings (Abov e whic h the us eful li f e ma y be im paired . F or user guid e- lines , not tested.) Stor age T emper ature ........... ............... ............ − 65 ° C to +1 50 ° C Ambient T emp erature wi th P ow er Applied .
CY7C291A CY7C292A/CY7C293A 3 Electrica l Characteristics Over the Op erati ng Ra nge [3 , 4 ] 7C291A-20 7C292A-20 7C293A-20 7C291A-25 7C292A-25 7C293A-25 7C291AL-2 5 7C292AL-2 5 7C293AL-2 5 Pa r a m e t e r Description T est Conditions Min. Max. Min .
CY7C291A CY7C292A/CY7C293A 4 Electrica l Characteristics Ov er the Operating R ange [3, 4] (con tinued) 7C291 AL-35, 50 7C292 AL-35, 50 7C293 AL-35, 50 7C291A-3 5, 50 7C292A-3 5, 50 7C293A-3 5, 50 Pa r a m e t e r Description T est Conditions Min. Max.
CY7C291A CY7C292A/CY7C293A 5 A C T est Loads and W avef orms [4] t PU t AA t HZCS t ACS 50% 50% t PD 3.0V 5V OUTPUT R1250 Ω R2 167 Ω 30pF INCLUDING JIG AND SCOPE GND 90% 10% 90% 10% <5 n s <5 ns 5V OUTPUT 5p F INCLUDING JIG AND SCOPE (a) Normal Load (b) High Z Load OUTPUT 2.
CY7C291A CY7C292A/CY7C293A 6 Erasure Characteri st ics W a v eleng ths of light le ss than 4000 Ang stroms beg in to eras e these PR OMs. F or this reason , an opaque label should be placed o v er the windo w if the PRO M is e xposed to s unl ig ht or fluor escent li ghting f or ex tended periods o f time .
CY7C291A CY7C292A/CY7C293A 7 Figure 1. Pr ogramming Pinouts C291A-8 C291A -9 1 2 3 4 5 6 7 8 9 10 11 12 16 17 18 19 20 24 23 22 21 13 14 A 8 A 7 A 6 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 GND V CC D 7 D .
CY7C291A CY7C292A/CY7C293A 8 T ypical DC and A C Characteristics 150 175 125 75 50 25 0.0 1.0 2.0 3 .0 OUTPUT SINK CURRENT (mA) 0 100 O U TP U T VOL T AG E ( V ) OUTPUT SINK C URRENT vs. O UTPUT VO LT AG E V CC =5.0V T A =25 ° C 4.0 C291A-11 1.00 1.02 0.
CY7C291A CY7C292A/CY7C293A 9 CY7C2 91AL -3 5PC P13 24-Lead (3 00-Mil) Molded D IP CY7C2 91AL -3 5WC W14 24-Lead (300-Mil ) Window ed CerDIP 90 CY7C291 A-35SC S13 24-Lead Molded SOIC Commerc ial CY7C29.
CY7C291A CY7C292A/CY7C293A 10 50 60 CY7C 291A L-5 0JC J64 28- Lead Plastic Lea ded Chip Carrier Commercial CY7C2 91AL -5 0PC P13 24-Lead (3 00-Mil) Molded D IP CY7C2 91AL -5 0WC W14 24-Lead (300-Mil ).
CY7C291A CY7C292A/CY7C293A 11 30 120 CY7C293A-30D MB D14 24-Lea d (300-Mil ) CerDIP Milit ar y CY7C 293A-30LMB L6 4 28-Square Lead less Chip Carrier CY7C293 A-30QMB Q64 28-Pin Win dow ed Lead less Chi.
CY7C291A CY7C292A/CY7C293A 12 MILIT AR Y SPECIFICA TIONS Gr oup A Subgro up T esting Documen t #: 38-00075 -G DC Characteristi cs Pa r a m e t e r Subgroups V OH 1, 2, 3 V OL 1, 2, 3 V IH 1, 2, 3 V IL.
CY7C291A CY7C292A/CY7C293A 13 P ac k age Di agram s 24-L ead (600-Mi l) C erDI P D12 MIL-STD-183 5 D- 3 Config.A 28-Square Leadless Chip C arrier L64 MIL-STD-1835 C- 4 24-Lead (300-Mil) CerDIP D14 MIL-STD-1835 D- 9Config.
CY7C291A CY7C292A/CY7C293A 14 P ac k age Di agram s (Continued) 24-Lead (600-Mil) Molded DIP P11 24-L ead (30 0-Mil ) Mo lded D IP P13/P13A.
CY7C291A CY7C292A/CY7C293A © Cypress Semicon ductor Corporation, 1993. The in formation contained herei n is subject to chang e without notice. Cypre ss Semico nductor Corporation assumes no responsibility for the use of any ci rcuitry other than circ uitr y embo died in a Cypress S emiconductor p roduct.
CY7C291A CY7C292A/CY7C293A 16 P ac k age Di agram s (Continued) 24-L ead W indowe d Ce rpa ck T7 3 24-L ead (300 -Mil ) Wi ndowed CerDI P W14 MIL-STD-1835 D- 9 Config.
An important point after buying a device Cypress CY7C291A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Cypress CY7C291A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Cypress CY7C291A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Cypress CY7C291A you will learn all the available features of the product, as well as information on its operation. The information that you get Cypress CY7C291A will certainly help you make a decision on the purchase.
If you already are a holder of Cypress CY7C291A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Cypress CY7C291A.
However, one of the most important roles played by the user manual is to help in solving problems with Cypress CY7C291A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cypress CY7C291A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
