Table of Contents
Advertisement
CHAPTER 22 ELECTRICAL SPECIFICATIONS (
(2) Serial interface 20 (SIO20) (T
(a) 3-wire serial I/O mode (internal clock output)
Parameter
Symbol
SCK20 cycle time
t
KCY1
SCK20 high-/low-level
t
KH1
width
t
KL1
SI20 setup time
t
SIK1
(to SCK20↑)
SI20 hold time
t
KSI1
(from SCK20↑)
Delay time from SCK20↓
t
KSO1
to SO20 output
Note R and C are the load resistance and load capacitance of the SO20 output line.
(b) 3-wire serial I/O mode (external clock input)
Parameter
Symbol
SCK20 cycle time
t
KCY2
SCK20 high-/low-level
t
KH2
width
t
KL2
SI20 setup time
t
SIK2
(to SCK20↑)
SI20 hold time
t
KSI2
(from SCK20↑)
Delay time from SCK20↓
t
KSO2
to SO20 output
Note R and C are the load resistance and load capacitance of the SO20 output line.
(c) UART mode (dedicated baud rate generator output)
Parameter
Symbol
Transfer rate
= –40 to +85°C, V
A
Conditions
V
= 2.7 to 5.5 V
DD
V
= 1.8 to 5.5 V
DD
,
V
= 2.7 to 5.5 V
DD
V
= 1.8 to 5.5 V
DD
V
= 2.7 to 5.5 V
DD
V
= 1.8 to 5.5 V
DD
V
= 2.7 to 5.5 V
DD
V
= 1.8 to 5.5 V
DD
Note
R = 1 kΩ, C = 100 pF
Conditions
V
= 2.7 to 5.5 V
DD
V
= 1.8 to 5.5 V
DD
,
V
= 2.7 to 5.5 V
DD
V
= 1.8 to 5.5 V
DD
V
= 2.7 to 5.5 V
DD
V
= 1.8 to 5.5 V
DD
V
= 2.7 to 5.5 V
DD
V
= 1.8 to 5.5 V
DD
Note
R = 1 kΩ, C = 100 pF
Conditions
V
= 2.7 to 5.5 V
DD
V
= 1.8 to 5.5 V
DD
User's Manual U15331EJ4V1UD
µ
PD789488, 78F9488, 789489, 78F9489)
= 1.8 to 5.5 V)
DD
MIN.
800
3200
t
/2–50
KCY1
t
/2–150
KCY1
150
500
400
600
V
= 2.7 to 5.5 V
0
DD
V
= 1.8 to 5.5 V
0
DD
MIN.
800
3200
400
1600
100
150
400
600
V
= 2.7 to 5.5 V
0
DD
V
= 1.8 to 5.5 V
0
DD
MIN.
TYP.
MAX.
Unit
ns
ns
ns
ns
ns
ns
ns
ns
250
ns
1000
ns
TYP.
MAX.
Unit
ns
ns
ns
ns
ns
ns
ns
ns
300
ns
1000
ns
TYP.
MAX.
Unit
78125
bps
19531
bps
353
Advertisement
Table of Contents
