R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 734

• Manufacturer Part Number: R5S77631Y266BGV
• Description: IC SUPERH MPU ROMLESS 499BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R5S77631Y266BGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 266MHz
• Connectivity: Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 107
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 499-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 17 Watchdog Timer and Reset (WDT)
17.5.2
The power-on reset time (watchdog timer reset holding time) by the watchdog timer overflowed is
3774 clock cycles of the EXTAL pin input clock and thereafter equal to or more than 45 clock
cycles of the peripheral clock (Pck0).
The transition time from the watchdog timer overflowed to the power-on reset state (watchdog
timer reset setup time) is 1 clock cycle of the EXTAL input clock and thereafter equal to or more
than 5 clock cycles of the peripheral clock (Pck0).
The STATUS [1:0] pins output timing that indicates the reset state or a normal operation is
asynchronous with both the EXTAL pin input clock and the CLKOUT pin input clock because the
STATUS [1:0] pins output timing is synchronous with the peripheral clock (Pck0).
(1)
Rev. 2.00 May 22, 2009 Page 664 of 1982
REJ09B0256-0200
Power-On Reset by Watchdog timer Overflowed in Normal Operation
Figure 17.6 STATUS Output by Watchdog timer overflow Power-On Reset
Power-On Reset by Watchdog Timer Overflow
EXTAL
input
CLKOUT
output
WDT overflow
signal
STATUS[1:0]
output
LL (normal)
WDT reset
stabilization time
during Normal Operation
WDT reset
holding time
HH (reset)
LL (normal)