HD64F3644H Renesas Electronics America, HD64F3644H Datasheet - Page 118

• Manufacturer Part Number: HD64F3644H
• Description: IC H8 MCU FLASH 32K 64-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD64F3644H

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-QFP
• Package: 64PQFP
• Family Name: H8
• Maximum Speed: 8 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 45
• Interface Type: SCI
• On-chip Adc: 8-chx8-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 5 Power-Down Modes
5.3.3
Bits STS2 to STS0 in SYSCR1 should be set as follows.
Table 5.4
STS2
0
0
0
0
1
Legend: * Don’t care
5.4
5.4.1
The system goes from active or subactive mode to watch mode when a SLEEP instruction is
executed while the SSBY bit in SYSCR1 is set to 1 and bit TMA3 in TMA is set to 1.
In watch mode, operation of on-chip peripheral modules other than timer A is halted. As long as a
minimum required voltage is applied, the contents of CPU registers, the on-chip RAM and some
registers of the on-chip peripheral modules, are retained. I/O ports keep the same states as before
the transition.
Rev. 6.00 Sep 12, 2006 page 96 of 526
REJ09B0326-0600
When a crystal oscillator is used
The table 5.4 gives settings for various operating frequencies. Set bits STS2 to STS0 for a
waiting time of at least 10 ms.
When an external clock is used
Any values may be set. Normally the minimum time (STS2 = STS1 = STS0 = 0) should be set.
Oscillator Settling Time after Standby Mode Is Cleared
Transition to Watch Mode
Watch Mode
STS1
0
0
1
1
*
Clock Frequency and Settling Time (times are in ms)
0
1
0
1
*
STS0
8,192 states
16,384 states
32,768 states
65,536 states
131,072 states
Waiting Time
1.6
3.2
6.6
13.1
26.2
5 MHz
2.0
4.1
8.2
16.4
32.8
4 MHz
2 MHz
4.1
8.2
16.4
32.8
65.5
1 MHz
8.2
16.4
32.8
65.5
131.1
0.5 MHz
16.4
32.8
65.5
131.1
262.1