CHAPTER 16 ELECTRICAL SPECIFICATIONS
User’s Manual U12978EJ3V0UD
214
AC Characteristics
(1) Basic operations (T
A
=
−−−−
40 to +85
°°°°
C, V
DD
= 4.0 to 5.5 V)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
When PCC = 00H (f
X
= 6.0 MHz)
0.333
0.333
0.333
µ
s
Cycle time (minimum
instruction execution time)
T
CY
When PCC = 02H (f
X
= 6.0 MHz)
1.333
1.333
1.333
µ
s
TI01 input frequency
f
TI
0
4.0
MHz
TI01 input high-/low-level
width
t
TIH
, t
TIL
0.1
µ
s
Interrupt input high-/low-level
width
t
INTH
, t
INTL
INTP0
10
µ
s
RESET input low-level width
t
RSL
10
µ
s
(2) Serial interface
(a) USB function (T
A
= 0 to +70
°°°°
C, V
DD
= 4.0 to 5.5 V)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
CL = 50 pF
Note
75
ns
USBDM and USBDP rise time t
R
CL = 350 pF
Note
300
ns
CL = 50 pF
Note
75
ns
USBDM and USBDP fall time
t
F
CL = 350 pF
Note
300
ns
t
R
and t
F
matching
t
RFM
t
R
/t
F
80
120
%
Differential output signal
cross-over point
V
CRS
1.3
2.0
V
Data transfer rate
t
DRATE
When the microcontroller operates at the
system clock (f
X
) of 6.0 MHz
1.5
1.5
1.5
Mbps
t
UDJ1
Upon transferring the next bit
−
95
0
95
ns
Transmission differential
signal jitter
t
UDJ2
Upon transferring the bit following the next bit
−
150
0
150
ns
Transmission EOP width
t
EOPT1
1.25
1.33
1.50
µ
s
t
EOPR1
EOP width to be eliminated
300
µ
s
Reception EOP width
t
EOPR2
EOP width to be detected
675
µ
s
t
URES1
USB reset width to be eliminated
2.5
µ
s
Reception USB reset width
t
URES2
USB reset width to be detected
5.5
µ
s
Note
CL is the capacitance of the USBDM and USBDP output lines.