CHAPTER 16 ELECTRICAL SPECIFICATIONS
User’s Manual U12978EJ3V0UD
214
AC Characteristics
(1) Basic operations (TA = −
−−
−40 to +85°
°°
°C, VDD = 4.0 to 5.5 V)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
When PCC = 00H (fX = 6.0 MHz) 0.333 0.333 0.333
µ
s
Cycle time (minimum
instruction execution time)
TCY
When PCC = 02H (fX = 6.0 MHz) 1.333 1.333 1.333
µ
s
TI01 input frequency fTI 04.0MHz
TI01 input high-/low-level
width
tTIH, tTIL 0.1
µ
s
Interrupt input high-/low-level
width
tINTH, tINTL INTP0 10
µ
s
RESET input low-level width tRSL 10
µ
s
(2) Serial interface
(a) USB function (TA = 0 to +70°
°°
°C, VDD = 4.0 to 5.5 V)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
CL = 50 pFNote 75 nsUSBDM and USBDP rise time tR
CL = 350 pFNote 300 ns
CL = 50 pFNote 75 nsUSBDM and USBDP fall time tF
CL = 350 pFNote 300 ns
tR and tF matching tRFM tR/tF80 120 %
Differential output signal
cross-over point
VCRS 1.3 2.0 V
Data transfer rate tDRATE When the mi crocontroller operates at the
system clock (fX) of 6.0 MHz
1.5 1.5 1.5 Mbps
tUDJ1 Upon transferring the next bit −95 095nsTransmission differential
signal jitter tUDJ2 Upon transferring the bit following the next bit −150 0 150 ns
Transmission EOP width tEOPT1 1.25 1.33 1.50
µ
s
tEOPR1 EOP width to be eliminated 300
µ
s
Reception EOP width
tEOPR2 EOP width to be detected 675
µ
s
tURES1 USB reset width to be eliminated 2.5
µ
s
Reception USB reset width
tURES2 USB reset width to be detected 5.5
µ
s
Note CL is the capacitance of the USBDM and USBDP output lines.