RX71M_15 Datasheet, PDF (202/228 Pages) Renesas Technology Corp – Renesas MCUs

RX71M Group
5.4 USB Characteristics
5. Electrical Characteristics
Table 5.42 On-Chip USB Low Speed (Host Only) Characteristics (DP and DM Pin Characteristics)
Conditions: VCC = AVCC0 = AVCC1 = VCC_USB = V_BATT = 3.0 to 3.6 V, 3.0 ≤ VREFH0 ≤ AVCC0,
VCC_USBA = AVCC_USBA = 3.0 to 3.6 V,
VSS = AVSS0 = AVSS1 = VREFL0 = VSS_USB = VSS1_USBA = VSS2_USBA = PVSS_USBA = AVSS_USBA = 0 V,
USBA_RREF = 2.2 kΩ ±1%, USBMCLK = 20/24 MHz, UCLK = 48 MHz,
PCLKA = 8 to 120 MHz, PCLKB = 8 to 60 MHz, T_a = T_opr
Item
Symbol Min. Typ. Max. Unit
Input
Input high level voltage
characteristics _{Input low level voltage}
V_IH
2.0
—
—
V
V_IL
—
—
0.8
V
Differential input sensitivity
V_DI
0.2
—
—
V
Differential common mode range
V_CM
0.8
—
2.5
V
Output
Output high level voltage
characteristics _{Output low level voltage}
V_OH
2.8
—
3.6
V
V_OL
0.0
—
0.3
V
Cross-over voltage
V_CRS
1.3
—
2.0
V
Rise time
t_LR
75
—
300 ns
Fall time
t_LF
75
—
300 ns
Rise/fall time ratio
t_LR / t_LF
80
—
125 %
Pull-up and DP/DM pull-down resistance
R_pd
14.25
—
24.80 kΩ
pull-down
(when the host controller function is
characteristics selected)
Test Conditions
| DP – DM |
I_OH = –200 μA
I_OL = 2 mA
Figure 5.75
t_LR/ t_LF
DP, DM ^VCRS
90%
10%
Figure 5.75
t_LR
DP and DM Output Timing (Low Speed)
90%
10%
t_LF
dp
USBb: 27 
USBA: Not
necessary
dm
Figure 5.76 Test Circuit (Low Speed)
Observation
point
200 pF to
600 pF
3.6 V
1.5 K
200 pF to
600 pF
R01DS0249EJ0100 Rev.1.00
Jan 15, 2015
Page 202 of 228