Datasheet

DEM 20487 SYH-LY Product Specification
Version: 3.1.3 PAGE: 8
10-2. AC Characteristics (VDD=4.5V~5.5V, Ta=-20~+70°C)
10-2-1 Write Mode (Writing Data from MPU to Module)
Characteristic Symbol Min Type Max Unit Test PIN
E Cycle Time t
C
1200 --- --- ns E
E Rise Time
t
R
--- --- 25 ns E
E Fall Time t
F
--- --- 25 ns E
E Pulse width (High,Low)
t
W
140 --- --- ns E
R/W and RS Set-up Time t
SU1
0 --- --- ns R/W,RS
R/W and RS Hold Time t
H1
10 --- --- ns R/W,RS
Data Set-up Time t
SU2
40 --- --- ns DB0~DB7
Data Hold Time t
H2
10 --- --- ns DB0~DB7
RS
R/W
E
DB0~DB7
tC
tDSW
tAS
tPW
tAH
tH
VIH1
VIL1
VIL1
Valid Data
tr
tAH
tr