Cypress SL811HS Manual De Usuario
SL811HS
Document 38-08008 Rev. *D
Page 27 of 32
I/O Read Cycle
Note nCS can be kept LOW during multiple Read cycles provided nRD is cycled. Rd Cycle Time for Auto Inc Mode Reads is 170
ns minimum.
ns minimum.
nRD
A0
D0-D7
DATA
twr
twahld
twdhld
twasu
twdsu
trdhld
I/O Read Cycle from Register or Memory Buffer
Register or Memory
Address
trdp
nWR
trshld
trcsu
nCS
tracc
Tcscs *Note
twrrdl
Parameter
Description
Min.
Typ.
Max.
t
WR
Write pulse width
85 ns
t
RD
Read pulse width
85 ns
t
WCSU
Chip select set-up to nWR
0 ns
t
WASU
A0 address set-up time
85 ns
t
WAHLD
A0 address hold time
10 ns
t
WDSU
Data to Write HIGH set-up time
85 ns
t
WDHLD
Data hold time after Write HIGH
5 ns
t
RACC
Data valid after Read LOW
25 ns
85 ns
t
RDHLD
Data hold after Read HIGH
40 ns
t
RCSU
Chip select LOW to Read LOW
0 ns
t
RSHLD
NCS hold after Read HIGH
0 ns
T
CSCS
*
nCS inactive to nCS *asserted
85 ns
t
WRRDL
nWR HIGH to nRD LOW
85ns