HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 866
HD64F2638F20J
Manufacturer Part Number
HD64F2638F20J
Description
IC H8S MCU FLASH 256K 128-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Specifications of HD64F2638F20J
Core Processor
H8S/2600
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, SCI, SmartCard
Peripherals
Motor Control PWM, POR, PWM, WDT
Number Of I /o
72
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 12x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
128-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Section 21B ROM
(H8S/2638 Group, H8S/2639 Group, H8S/2630 Group)
21B.7.6 Flash Memory Power Control Register (FLPWCR)
FLPWCR enables or disables a transition to the flash memory power-down mode when the LSI
switches to subactive mode * .
Note: * Subclock functions (subactive mode, subsleep mode, and watch mode) are available in the
Bit 7—Power-Down Disable (PDWND): The subactive mode is not available in versions other
than the U-mask and W-mask versions.
Only 0 should be written to this bit in the case of versions other than the U-mask and W-mask
versions.
See section 21.B.14, Flash Memory and Power-Down States, for more information.
Bit 7
PDWND
0
1
Bits 6 to 0—Reserved: These bits always read 0.
Page 816 of 1458
Initial value:
U-mask and W-mask versions only. These functions cannot be used with the other
versions.
R/W:
Bit:
Description
Transition to flash memory power-down mode enabled
Transition to flash memory power-down mode disabled
PDWND
R/W
7
0
—
R
6
0
—
R
5
0
—
R
4
0
—
R
0
3
H8S/2639, H8S/2638, H8S/2636,
—
R
2
0
REJ09B0103-0800 Rev. 8.00
H8S/2630, H8S/2635 Group
—
R
1
0
(Initial value)
May 28, 2010
—
R
0
0
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