r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 703

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
Figure 28.3
Table 28.10
Note:
Table 28.11
Notes:
t
―
―
―
rth
Symbol
Symbol
1. To use the power-on reset function, enable voltage monitor 0 reset by setting the LVDAS bit in the OFS register to 0.
1. This enables the setting errors of bit rates such as 9600 bps and 38400 bps to be 0% when the serial interface is used in
2. This indicates the precision error for the oscillation frequency of the high-speed on-chip oscillator.
reset signal
Power V
Notes:
UART mode.
External
Internal
1. V
2. t
V
0.5 V
det0
Circuit chapter for details.
a power-on reset. When turning on the power after it falls with voltage monitor 0 reset disabled, maintain
t
High-speed on-chip oscillator frequency
after reset
High-speed on-chip oscillator frequency
when 01b or 10b is written to bits
FRA25 and FRA24 in the FRA2 register
(1)
High-speed on-chip oscillator frequency
when 10b is written to bits FRA25 and
FRA24 in the FRA2 register
High-speed on-chip oscillator frequency
dependence on temperature and power
supply voltage
Oscillation stability time
Self power consumption at oscillation
w(por)
w(por)
CC
det0
(1)
External power VCC rise gradient
indicates the voltage detection level of the voltage detection 0 circuit. Refer to the Voltage Detection
Preliminary document
Specifications in this document are tentative and subject to change.
Power-On Reset Circuit Characteristics
(Measurement conditions: Vcc = 1.8 V to 5.5 V, Topr =  20°C to 85°C (N version)/
 40°C to 85°C (D version))
Power-on Reset Circuit Characteristics
High-Speed On-Chip Oscillator Circuit Characteristics
indicates the duration the external power V
for 1 ms or more.
t
w(por)
Parameter
(2)
(2)
Parameter
t
rth
f
OCO-S
Vcc = 1.8 V to 5.5 V,
 20°C  Topr  85°C
(N version)
 40°C  Topr  85°C
(D version)
Vcc = 5.0 V, Topr = 25°C
Vcc = 5.0 V, Topr = 25°C
1
circuit response time
Voltage detection 0
 32
CC
must be held below the valid voltage (0.5 V) to enable
Conditions
Conditions
(1)
TBD
Min.
t
TBD
rth
Min.
―
—
—
―
―
Standard
28. Electrical Characteristics
Typ.
Standard
―
f
36.864
OCO-S
Typ.
250
400
40
32
―
1
 32
Max.
TBD
V
Page 672 of 725
det0
Max.
TBD
TBD
TBD
―
—
—
(1)
mV/msec
Unit
MHz
MHz
MHz
Unit
μA
μs
%