DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 677
DF3048BVX25V
Manufacturer Part Number
DF3048BVX25V
Description
MCU 3/5V 128K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of DF3048BVX25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
70
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3048BVX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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20.5
20.5.1
Regardless of its current state, the chip enters hardware standby mode whenever the STBY pin
goes low. Hardware standby mode reduces power consumption drastically by halting all functions
of the CPU, DMAC, refresh controller, and on-chip supporting modules. All modules are reset
except the on-chip RAM. As long as the specified voltage is supplied, on-chip RAM data is
retained. I/O ports are placed in the high-impedance state.
Clear the RAME bit to 0 in SYSCR before STBY goes low to retain on-chip RAM data.
The inputs at the mode pins (MD
20.5.2
Hardware standby mode is exited by inputs at the STBY and RES pins. While RES is low, when
STBY goes high, the clock oscillator starts running. RES should be held low long enough for the
clock oscillator to settle. When RES goes high, reset exception handling begins, followed by a
transition to the program execution state.
20.5.3
Figure 20.2 shows the timing relationships for hardware standby mode. To enter hardware standby
mode, first drive RES low, then drive STBY low. To exit hardware standby mode, first drive
STBY high, wait for the clock to settle, then bring RES from low to high.
Transition to Hardware Standby Mode
Exit from Hardware Standby Mode
Timing for Hardware Standby Mode
Hardware Standby Mode
2
to MD
0
) should not be changed during hardware standby mode.
Rev. 3.00 Sep 27, 2006 page 649 of 872
Section 20 Power-Down State
REJ09B0325-0300
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