Epson RX4111CE - AC Characteristics; AC Characteristics (1); Table 7 AC Characteristics

9. Electrical Characteristics

RX4111CE Jump to Top / Bottom
ETM62E-02 Seiko Epson Corporation 12
9.2. AC characteristics
9.2.1. AC Characteristics (1)
Table 7 AC Characteristics
Unless otherwise specified, GND = 0 V, V
IO
= 1.6 V  5.5 V, Ta = -40 C  +85 C
Item
Symbol
Condition
V
DD
= 1.8 V  0.2 V
V
DD
= 3.0 V  10 %
V
DD
= 5.0 V  10 %
Unit
Min.
Max.
Min.
Max.
Min.
Max.
CLK clock cycle
t
CLK
1000
－
332
－
250
－
ns
CLK H pulse width
t
WH
450
－
166
－
125
－
ns
CLK L pulse width
t
WL
450
－
166
－
125
－
ns
CLK rise and fall time
t
RF
－
100
－
50
－
40
ns
CLK setup time
t
CLKS
100
－
30
－
30
－
ns
CE setup time
t
CS
400
－
150
－
130
－
ns
CE hold time
t
CH
400
－
200
－
100
－
ns
CE recovery time
t
CR
500
－
200
－
150
－
ns
CE rise and fall time
t
CERF
100
－
50
－
40
s
Write data setup time
t
DS
200
－
50
－
40
－
ns
Write data hold time
t
DH
200
－
50
－
40
－
ns
Read data delay time
t
RD
=50pF
0
400
－
150
－
110
ns
DO output disable time
t
RZ
=50pF
=10k
0
400
－
120
－
110
ns
DI/DO conflict avoiding time
t
ZZ
0
－
0
－
0
－
ns




 


 10  for 

 
 Timing chart
CLK
C E
t
CLKS
t
WH
t
WL
t
CH
t
CR
 Read
D I
t
DS

 Write
t
DH
M 3
M 2
A 0
80 %
20 %
t
RF
t
RF
D O
D 7
D 6
D 0
Hi-Z
D I
M 3
M 2
A 0
D 7
D 0
t
CLK
D 6
D O
Hi-Z
t
WCE
t
RZ
t
ZZ
t
RD
t
CS
t
CERF
t
CERF
1 or 0
*1
1 or 0
*1
Figure 13 SPI-Bus Timing Chart
Note: When writing data, it writes the data at CLK rise after received 8 bits of data in one time.
If communication is interrupted before receiving 8 bits data, data will not be written.
*1: Even if CE is Low, DI pin is active. Don't input half voltage and don't left open DI.