RX634 Datasheet, PDF (70/106 Pages) Renesas Technology Corp – 54 MHz 32-bit RX MCU with FPU, 90 DMIPS, up to 2-Mbyte flash memory

RX634 Group
5. Electrical Characteristics
5.3.2
Reset Timing
Table 5.19 Reset Timing
Conditions 1: VCC = AVCC0 = VREFH0 = 2.7 to 3.6 V, VREFH = 2.7 V to AVCC0, VSS = AVSS0 = VREFL = VREFL0 = 0 V,
T_a = –40 to +85°C
Conditions 2: VCC = AVCC0 = VREFH0 = 4.0 to 5.5 V, VREFH = 4.0 V to AVCC0, VSS = AVSS0 = VREFL = VREFL0 = 0 V,
T_a = –40 to +85°C
Item
Symbol Min.
Typ.
Max.
Unit
Test
Conditions
RES# pulse
width
Power-on
Deep software standby mode
Software standby mode, low-speed operating
modes 1 and 2
t_RESWP
2
t_RESWD
1
t_RESWS
1
—
—
ms Figure 5.7
—
—
ms Figure 5.8
—
—
ms
Programming or erasure of the ROM or E2
t_RESWF 200
—
—
μs
DataFlash memory or blank checking of the E2
DataFlash memory
Other than above
t_RESW
200
—
—
μs
Wait time after RES# cancellation
t_RESWT
59
—
60
t_CYC Figure 5.7
Internal reset time
t_RESW2 112
—
120
t_CYC
(independent watchdog timer reset, watchdog timer reset, software
reset)
VCC
RES#
Internal reset
t_RESWP
Figure 5.7 Reset Input Timing at Power-On
t_RESWT
RES#
Internal reset
Figure 5.8 Reset Input Timing
t_RESWD, t_RESWS, t_RESWF, t_RESW
t_RESWT
R01DS0255EJ0100 Rev.1.00
Feb 25, 2015
Page 70 of 106