HD64F3048VTF8 Renesas Electronics America, HD64F3048VTF8 Datasheet - Page 213
HD64F3048VTF8
Manufacturer Part Number
HD64F3048VTF8
Description
IC H8 MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.HD64F3048F16.pdf
(907 pages)
Specifications of HD64F3048VTF8
Core Processor
H8/300H
Core Size
16-Bit
Speed
8MHz
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)
2.7 V ~ 5.5 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
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F3048VX8
- Current page: 213 of 907
- Download datasheet (6Mb)
Operation in Power-Down State: The refresh controller operates in sleep mode. It does not
operate in hardware standby mode. In software standby mode RTCNT is initialized, but RFSHCR,
RTMCSR bits 5 to 3, and RTCOR retain their settings prior to the transition to software standby
mode.
Example: Pseudo-static RAM may have separate OE and RFSH pins, or these may be combined
into a single OE/RFSH pin. Figure 7.17 shows an example of a circuit for generating an OE/RFSH
signal. Check the device characteristics carefully, and design a circuit that fits them. Figure 7.18
shows a setup procedure to be followed by a program.
Figure 7.16 Signal Output Timing in Self-Refresh Mode (PSRAME = 1, DRAME = 0)
Figure 7.17 Interconnection to Pseudo-Static RAM with OE
Address
bus
CS
RD
HWR
LWR
RFSH
3
H8/3048
High
Group
RFSH
RD
Software standby mode
High-impedance
High-impedance
High-impedance
High-impedance
Rev. 7.00 Sep 21, 2005 page 187 of 878
Oscillator
settling time
OE/RFSH
OE/RFSH
OE
OE
Section 7 Refresh Controller
RFSH Signal (Example)
RFSH
RFSH
PSRAM
REJ09B0259-0700
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