HD6417708RF100A Renesas Electronics America, HD6417708RF100A Datasheet - Page 286
![IC SUPERH MPU ROMLESS 144LQFP](/photos/28/61/286126/144-lqfp__plqp0144kb-a_sml.jpg)
HD6417708RF100A
Manufacturer Part Number
HD6417708RF100A
Description
IC SUPERH MPU ROMLESS 144LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.HD6417708SF60V.pdf
(635 pages)
Specifications of HD6417708RF100A
Core Processor
SH-2
Core Size
32-Bit
Speed
100MHz
Connectivity
EBI/EMI, SCI, SmartCard
Peripherals
POR, WDT
Number Of I /o
8
Program Memory Type
ROMless
Voltage - Supply (vcc/vdd)
3.15 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
144-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Ram Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417708RF100A
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
HD6417708RF100A
Manufacturer:
HITACHI/日立
Quantity:
20 000
Part Number:
HD6417708RF100AV
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
- Current page: 286 of 635
- Download datasheet (3Mb)
Refreshing: The bus state controller is provided with a function for controlling synchronous
DRAM refreshing. Auto-refreshing can be performed by clearing the RMODE bit to 0 and setting
the RFSH bit to 1 in MCR. If synchronous DRAM is not accessed for a long period, self-refresh
mode, in which the power consumption for data retention is low, can be activated by setting both
the RMODE bit and the RFSH bit to 1.
1. Auto-Refreshing
Refreshing is performed at intervals determined by the input clock selected by bits CKS2–CKS0
in RTCSR, and the value set in RTCOR. The value of bits CKS2–CKS0 in RTCOR should be set
so as to satisfy the refresh interval stipulation for the synchronous DRAM used. First make the
settings for RTCOR, RTCNT, and the RMODE and RFSH bits in MCR, then make the CKS2 to
CKS0 setting. When the clock is selected by CKS2–CKS0, RTCNT starts counting up from the
value at that time. The RTCNT value is constantly compared with the RTCOR value, and if the
two values are the same, a refresh request is generated and an auto-refresh is performed. At the
same time, RTCNT is cleared to zero and the count-up is restarted. Figure 10.29 shows the auto
refresh operation. Figure 10.30 shows the auto-refresh cycle timing.
First, an REF command is issued in the TRr cycle. After the TRr cycle, new command output
cannot be performed for the duration of the number of cycles specified by the TRAS bits in MCR
plus the number of cycles specified by the TPC bits in MCR. The TRAS and TPC bits must be set
to satisfy the synchronous DRAM refresh cycle time stipulation (active/active command delay
time).
Auto-refreshing is performed in normal operation, in sleep mode, and in a manual reset.
266
H'00000000
RTCSR.CKS(2–0)
RTCNT
CMF
External bus
RTCOR value
CMF flag cleared by start of
refresh cycle
= 000
Figure 10.29 Auto-Refresh Operation
000
RTCNT cleared to 0 when
RTCNT = RTCOR
Auto-refresh cycle
Time
Related parts for HD6417708RF100A
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![R0K330290S001BE](/photos/28/41/284146/r0k330290s001be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR M16C/29
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K5212D8S001BE](/photos/24/13/241324/4607177_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C/2D
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K33062PS001BE](/photos/24/13/241320/4607173_tmb.jpg)
Part Number:
Description:
R0K33062P STARTER KIT
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521237S001BE](/photos/28/41/284170/r0k521237s001be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C/23 E8A
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521256S001BE](/photos/24/13/241323/4607176_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C/25
Manufacturer:
Renesas Electronics America
Datasheet:
![YLCDRSK2456S](/images/manufacturer_photos/0/5/560/renesas_electronics_america_tmb.jpg)
Part Number:
Description:
KIT STARTER H8S2456 SHARPE DSPLY
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521380S000BE](/photos/28/41/284144/r0k521380s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C38C
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521350S000BE](/photos/28/41/284145/r0k521350s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C35C
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K52L3A0S000BE](/photos/28/41/284149/r0k52l3a0s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8CL3AC+LCD APPS
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K556100S000BE](/images/manufacturer_photos/0/5/560/renesas_electronics_america_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR RX610
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K564189S000BE](/photos/28/41/284173/r0k564189s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R32C/118
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521276S000BE](/photos/9/26/92647/r0k521276s000be_tmb.jpg)
Part Number:
Description:
KIT DEV RSK-R8C/26-29
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K571242S001BE](/photos/9/23/92397/r0k571242s001be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR SH7124
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K561622S000BE](/photos/9/23/92398/r0k561622s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR H8SX/1622
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K572030S000BE](/photos/9/24/92406/r0k572030s000be_tmb.jpg)
Part Number:
Description:
KIT DEV FOR SH7203
Manufacturer:
Renesas Electronics America
Datasheet: