HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 937
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
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F2638F20J
Manufacturer:
PENESAS
Quantity:
252
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H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
21C.10 Protection
There are three kinds of flash memory program/erase protection: hardware protection, software
protection, and error protection.
21C.10.1 Hardware Protection
Hardware protection refers to a state in which programming/erasing of flash memory is forcibly
disabled or aborted. Hardware protection is reset by settings in flash memory control register 1
(FLMCR1), flash memory control register 2 (FLMCR2), erase block register 1 (EBR1), and erase
block register 2 (EBR2). The FLMCR1, FLMCR2, EBR1, and EBR2 settings are retained in the
error-protected state (See table 21C-11).
Table 21C-11
Item
FWE pin protection
Reset/standby
protection
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Hardware Protection
Description
•
•
•
When a low level is input to the FWE pin,
FLMCR1, FLMCR2, (except bit FLER) EBR1,
and EBR2 are initialized, and the
program/erase-protected state is entered.
In a reset (including a WDT reset) and in
standby mode, FLMCR1, FLMCR2, EBR1,
and EBR2 are initialized, and the
program/erase-protected state is entered.
In a reset via the RES pin, the reset state is
not entered unless the RES pin is held low
until oscillation stabilizes after powering on.
In the case of a reset during operation, hold
the RES pin low for the RES pulse width
specified in the AC Characteristics section.
Program
Yes
Yes
Functions
Section 21C ROM
(H8S/2635 Group)
Erase
Yes
Yes
Page 887 of 1458
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