DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 735

• Manufacturer Part Number: DF71251AD50FPV
• Description: MCU RISC FLASH 32K 8K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Tinyr

Specifications of DF71251AD50FPV

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

21.3.1
Table 21.5 Clock Timing
Conditions: V
Note:
Item
EXTAL clock input frequency
EXTAL clock input cycle time
EXTAL clock input low pulse width
EXTAL clock input high pulse width
EXTAL clock input rising time
EXTAL clock input falling time
CK (Bφ) clock frequency (reference
values)
CK (Bφ) clock cycle time (reference
values)
Power-on oscillation stabilization time
Oscillation stabilization time on return
from standby 1
Oscillation stabilization time on return
from standby 2
* Depends on the frequency control register (FRQCR).
Clock Timing
T
T
a
a
CC
= –20 to +85°C (consumer specifications),
= –40 to +85°C (industrial specifications)
= AV
Figure 21.1 Timing of EXTAL Input Clock Signal
EXTAL
CC
(input)
= 4.0 V to 5.5 V, V
1/2 V
CC
V
IH
Symbol
f
t
t
t
t
t
f
t
t
t
t
t
EX
EXcyc
EXL
EXH
EXr
EXf
OP
cyc
OSC1
OSC2
OSC3
EXH
SS
= PLLV
V
IH
t
EXcyc
Min.
10
80
20
20
⎯
⎯
10
25
10
10
10
V
SS
IL
t
EXf
= AV
t
EXL
V
Rev. 5.00 Mar. 06, 2009 Page 715 of 770
IL
SS
= 0 V,
Max.
12.5
100
⎯
⎯
5
5
40
100
⎯
⎯
⎯
1/2 V
V
t
EXr
IH
CC
Unit
MHz
ns
ns
ns
ns
ns
MHz
ns
ms
ms
ms
Reference
Figure
Figure 21.1
*
Figure 21.2
Figure 21.3
Figure 21.4
REJ09B0243-0500