MB90347CEPMC datasheet(62/93 Pages) CYPRESS

62 / 93 page

Document Number: 002-04498 Rev. *A

Page 61 of 92

MB90340E Series

11.4.5 Bus Timing (Read)

(TA  40°C to 105°C, VCC  5.0 V  10, VSS  0.0 V, fCP 24 MHz)

Parameter

Symbol

Condition

Value

Unit

Min

Max

ALE pulse width

tLHLL

ALE



tCP/2  10



Valid address



ALE

 time

tAVLL

ALE, A23 to A16, AD15 to

AD00

tCP/2  20



ALE





Address valid time

tLLAX

ALE, AD15 to AD00

tCP/2  15



Valid address



 time

tAVRL

A23 to A16,

AD15 to AD00, RD

tCP  15



Valid address



Valid data input

tAVDV

A23 to A16,

AD15 to AD00



5 tCP/2  60

RD pulse width

tRLRH

3 tCP/2  20





 Valid data input

tRLDV

RD, AD15 to AD00



3 tCP/2  50



 Data hold time

tRHDX

RD, AD15 to AD00





 ALE  time

tRHLH

RD, ALE

tCP/2  15





 Address valid time

tRHAX

RD, A23 to A16

tCP/2  10



Valid address



CLK

 time

tAVCH

A23 to A16,

AD15 to AD00, CLK

tCP/2  16





 CLK  time

tRLCH

RD, CLK

tCP/2  15



ALE



 RD  time

tLLRL

ALE, RD

tCP/2  15



A23 to A16

0.8 V

2.4 V

0.8 V

tRHAX

AD15 to AD00

0.8 V

2.4 V

0.8 V

Address

VIL

VIH

VIL

Read data

tRHDX

tRLDV

tAVDV

CLK

tAVCH

2.4 V

tRLCH

2.4 V

ALE

2.4 V

tLHLL

2.4 V

tRHLH

0.8 V

tLLAX

2.4 V

tAVLL

tLLRL

tRLRH

0.8 V

2.4 V

tAVRL

0.8 V

MB90347CEPMC Datasheet(PDF) 62 Page - Cypress Semiconductor

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