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CY7C185

Document #: 38–00037–K

Truth Table

Input/Output

Mode

High Z

Deselect/Power-Down

High Z

Deselect/Power-Down

Data Out

Read

Data In

Write

High Z

Deselect

Address Designators

Address

Name

Address

Function

Pin

Number

A10

A11

A12

Ordering Information

Speed

(ns)

Ordering Code

Package

Name

Package Type

Operating

Range

CY7C185–15PC

P21

28-Lead (300-Mil) Molded DIP

Commercial

CY7C185–15SC

S21

28-Lead Molded SOIC

CY7C185–15VC

V21

28-Lead Molded SOJ

CY7C185–15VI

V21

28-Lead Molded SOJ

Industrial

CY7C185–20PC

P21

28-Lead (300-Mil) Molded DIP

Commercial

CY7C185–20SC

S21

28-Lead Molded SOIC

CY7C185–20VC

V21

28-Lead Molded SOJ

CY7C185–20VI

V21

28-Lead Molded SOJ

Industrial

CY7C185–25PC

P21

28-Lead (300-Mil) Molded DIP

Commercial

CY7C185–25SC

S21

28-Lead Molded SOIC

CY7C185–25VC

V21

28-Lead Molded SOJ

CY7C185–25VI

V21

28-Lead Molded SOJ

Industrial

CY7C185–35PC

P21

28-Lead (300-Mil) Molded DIP

Commercial

CY7C185–35SC

S21

28-Lead Molded SOIC

CY7C185–35VC

V21

28-Lead Molded SOJ

CY7C185–35VI

V21

28-Lead Molded SOJ

Industrial

Содержание CY7C185

Страница 1: ...mory location addressed by the address present on the address pins A0 through A12 Reading the device is accomplished by selecting the device and enabling the outputs CE1 and OE active LOW CE2 active HIGH while WE remains inactive or HIGH Under these conditions the contents of the location ad dressed by the information on address pins are present on the eight data input output pins The input output...

Страница 2: ...Test Conditions Min Max Min Max Unit VOH Output HIGH Voltage VCC Min IOH 4 0 mA 2 4 2 4 V VOL Output LOW Voltage VCC Min IOL 8 0 mA 0 4 0 4 V VIH Input HIGH Voltage 2 2 VCC 0 3V 2 2 VCC 0 3V V VIL Input LOW Voltage 2 0 5 0 8 0 5 0 8 V IIX Input Load Current GND VI VCC 5 5 5 5 µA IOZ Output Leakage Current GND VI VCC Output Disabled 5 5 5 5 µA IOS Output Short Circuit Current 3 VCC Max VOUT GND 300...

Страница 3: ...ating Supply Current VCC Max IOUT 0 mA 100 100 mA ISB1 Automatic Power Down Current Max VCC CE1 VIH or CE2 VIL Min Duty Cycle 100 20 20 mA ISB2 Automatic Power Down Current Max VCC CE1 VCC 0 3V or CE2 0 3V VIN VCC 0 3V or VIN 0 3V 15 15 mA Capacitance 4 Parameter Description Test Conditions Max Unit CIN Input Capacitance TA 25 C f 1 MHz VCC 5 0V 7 pF COUT Output Capacitance 7 pF Note 4 Tested init...

Страница 4: ...Address Set Up to Write End 12 15 20 25 ns tHA Address Hold from Write End 0 0 0 0 ns tSA Address Set Up to Write Start 0 0 0 0 ns tPWE WE Pulse Width 12 15 15 20 ns tSD Data Set Up to Write End 8 10 10 12 ns tHD Data Hold from Write End 0 0 0 0 ns tHZWE WE LOW to High Z 6 7 7 7 8 ns tLZWE WE HIGH to Low Z 3 5 5 5 ns Notes 5 Test conditions assume signal transition time of 5 ns or less timing refe...

Страница 5: ...put set up and hold timing should be referenced to the rising edge of the signal that terminates the write 13 During this period the I Os are in the output state and input signals should not be applied ADDRESS DATA OUT PREVIOUS DATA VALID DATA VALID tRC tAA tOHA C185 6 Read Cycle No 1 9 10 50 50 DATA VALID tRC tACE tDOE tLZOE tLZCE tPU HIGH IMPEDANCE IMPEDANCE ICC ISB tHZOE tHZCE tPD OE HIGH DATA ...

Страница 6: ...with WE HIGH the output remains in a high impedance state Switching Waveforms continued tWC tAW tSA tHA tHD tSD tSCE1 WE DATA I O ADDRESS CE1 C185 9 DATA IN VALID tSCE2 CE2 Write Cycle No 2 CE Controlled 12 13 14 tHD tSD tLZWE tSA tHA tAW tWC tHZWE C185 10 DATA IN VALID tSCE1 tSCE2 CE1 CE2 ADDRESS DATA I O WE Write Cycle No 3 WE Controlled OE LOW 12 13 14 15 NOTE 13 ...

Страница 7: ...GE 0 0 0 8 1 4 1 3 1 2 1 1 1 0 0 9 4 0 4 5 5 0 5 5 6 0 NORMALIZED t AA SUPPLY VOLTAGE V NORMALIZED ACCESS TIME vs SUPPLY VOLTAGE 120 140 100 60 40 20 0 0 1 0 2 0 3 0 4 0 OUTPUT SINK CURRENT mA 0 80 OUTPUT VOLTAGE V OUTPUT SINK CURRENT vs OUTPUT VOLTAGE NORMALIZED I I CC SB I CC VCC 5 0V VCC 5 0V TA 25 C VCC 5 0V TA 25 C I SB TA 25 C 0 6 0 8 0 3 0 2 5 2 0 1 5 1 0 0 5 0 0 1 0 2 0 3 0 4 0 NORMALIZED ...

Страница 8: ... 28 Lead 300 Mil Molded DIP Commercial CY7C185 15SC S21 28 Lead Molded SOIC CY7C185 15VC V21 28 Lead Molded SOJ CY7C185 15VI V21 28 Lead Molded SOJ Industrial 20 CY7C185 20PC P21 28 Lead 300 Mil Molded DIP Commercial CY7C185 20SC S21 28 Lead Molded SOIC CY7C185 20VC V21 28 Lead Molded SOJ CY7C185 20VI V21 28 Lead Molded SOJ Industrial 25 CY7C185 25PC P21 28 Lead 300 Mil Molded DIP Commercial CY7C1...

Страница 9: ...CY7C185 9 Package Diagrams 51 85014 B 28 Lead 300 Mil Molded DIP P21 28 Lead 300 Mil Molded SOIC S21 51 85026 A ...

Страница 10: ... 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 indemn...

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