UPD78F1502AGK-GAK-AX Datasheet, PDF (946/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 31 ELECTRICAL SPECIFICATIONS
Supply Voltage Rise Time (TA = −40 to +85°C, VSS = 0 V)
Parameter
Maximum time to rise to
1.8 V (VDD (MIN.)) ^Note
(VDD: 0 V → 1.8 V)
Maximum time to rise to
1.8 V (VDD (MIN.)) ^Note
(releasing RESET input → VDD: 1.8 V)
Symbol
Conditions
MIN. TYP. MAX. Unit
tPUP1
LVI default start function stopped
is set (LVIOFF (Option Byte) = 1),
when RESET input is not used
3.6
ms
tPUP2
LVI default start function stopped
is set (LVIOFF (Option Byte) = 1),
when RESET input is used
1.88
ms
Note Make sure to raise the power supply in a shorter time than this.
Supply Voltage Rise Time Timing
• When RESET pin input is not used
• When RESET pin input is used (when external reset is
released by the RESET pin, after POC has been
released)
Supply voltage
(VDD)
Supply voltage
(VDD)
1.8 V
1.8 V
0V
POC internal
signal
tPUP1
0V
Time
POC internal
signal
RESET pin
Internal reset
signal
tPUP2
Time
R01UH0004EJ0501 Rev.5.01
930
Jun 20, 2011