HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 814
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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Manufacturer
Quantity
Price
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Part Number:
HD64F2638F20J
Manufacturer:
PENESAS
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252
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Section 21A ROM
(H8S/2636 Group)
Bit 7—Power-Down Disable (PDWND): Enables or disables a transition to the flash memory
power-down mode when the LSI switches to subactive mode. For details, see section 21A.14,
Flash Memory and Power-Down States.
The subactive mode can be used in the U-mask version only.
When writing to this bit in other versions, be sure to write 0.
Bit 7: PDWND
0
1
Bits 6 to 0—Reserved: These bits always read 0.
21A.8 On-Board Programming Modes
When pins are set to on-board programming mode and a reset-start is executed, a transition is
made to the on-board programming state in which program/erase/verify operations can be
performed on the on-chip flash memory. There are two on-board programming modes: boot mode
and user program mode. The pin settings for transition to each of these modes are shown in table
21A-9. For a diagram of the transitions to the various flash memory modes, see figure 21A-3.
Table 21A-9 Setting On-Board Programming Modes
Mode
Boot mode
User program mode
Page 764 of 1458
Description
Transition to flash memory power-down mode enabled
Transition to flash memory power-down mode disabled
Single-chip mode
Single-chip mode
Expanded mode
Expanded mode
FWE
1
1
MD2
0
0
1
1
H8S/2639, H8S/2638, H8S/2636,
MD1
1
1
1
1
REJ09B0103-0800 Rev. 8.00
H8S/2630, H8S/2635 Group
(Initial value)
MD0
0
1
0
1
May 28, 2010
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