HD64F3687GH Renesas Electronics America, HD64F3687GH Datasheet - Page 119
HD64F3687GH
Manufacturer Part Number
HD64F3687GH
Description
IC H8 MCU FLASH 56K 64-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.HD64F3684GFPV.pdf
(538 pages)
Specifications of HD64F3687GH
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
45
Program Memory Size
56KB (56K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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cleared, a transition is made to active mode when the LSON bit in SYSCR2 is 0, and a transition is
made to subactive mode when the bit is 1. After the time set in bits STS2 to STS0 in SYSCR1 has
elapsed, a transition is made to active mode.
When the RES pin goes low, the system clock pulse generator starts. Since system clock signals
are supplied to the entire chip as soon as the system clock pulse generator starts functioning, the
RES pin must be kept low until the pulse generator output stabilizes. After the pulse generator
output has stabilized, the CPU starts reset exception handling if the RES pin is driven high.
6.2.4
The operating frequency of subactive mode is selected from
SA0 bits in SYSCR2. After the SLEEP instruction is executed, the operating frequency changes to
the frequency which is set before the execution. When the SLEEP instruction is executed in
subactive mode, a transition to sleep mode, subsleep mode, standby mode, active mode, or
subactive mode is made, depending on the combination of SYSCR1 and SYSCR2. When the RES
pin goes low, the system clock pulse generator starts. Since system clock signals are supplied to
the entire chip as soon as the system clock pulse generator starts functioning, the RES pin must be
kept low until the pulse generator output stabilizes. After the pulse generator output has stabilized,
the CPU starts reset exception handling if the RES pin is driven high.
6.3
Operation in active mode is clocked at the frequency designated by the MA2, MA1, and MA0 bits
in SYSCR2. The operating frequency changes to the set frequency after SLEEP instruction
execution.
Subactive Mode
Operating Frequency in Active Mode
W
Rev.5.00 Nov. 02, 2005 Page 85 of 500
/2,
W
/4, and
Section 6 Power-Down Modes
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/8 by the SA1 and
REJ09B0027-0500
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