D12312SVF20V Renesas Electronics America, D12312SVF20V Datasheet - Page 846
D12312SVF20V
Manufacturer Part Number
D12312SVF20V
Description
IC H8S/2312S MCU ROMLESS 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of D12312SVF20V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
70
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
For Use With
EDK2329 - DEV EVALUATION KIT H8S/2329
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D12312SVF20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 19 Power-Down Modes
19.6.3
Bits STS2 to STS0 in SBYCR should be set as described below.
Using a Crystal Oscillator: Set bits STS2 to STS0 so that the standby time is at least 8 ms (the
oscillation stabilization time).
Table 19.4 shows the standby times for different operating frequencies and settings of bits STS2 to
STS0.
Table 19.4 Oscillation Stabilization Time Settings
STS2 STS1 STS0 Standby Time
0
1
Using an External Clock: Any value can be set. Normally, use of the minimum time is
recommended * .
Note: * The 16-state standby time cannot be used in the F-ZTAT versions; a standby time of 8192
19.6.4
Figure 19.2 shows an example in which a transition is made to software standby mode at the
falling edge on the NMI pin, and software standby mode is cleared at the rising edge on the NMI
pin.
In this example, an NMI interrupt is accepted with the NMIEG bit in SYSCR cleared to 0 (falling
edge specification), then the NMIEG bit is set to 1 (rising edge specification), the SSBY bit is set
to 1, and a SLEEP instruction is executed, causing a transition to software standby mode.
Rev.7.00 Feb. 14, 2007 page 812 of 1108
REJ09B0089-0700
: Recommended time setting
0
1
0
1
states or longer should be used.
Setting Oscillation Stabilization Time after Clearing Software Standby Mode
Software Standby Mode Application Example
0
1
0
1
0
1
0
1
8192 states
16384 states
32768 states
65536 states
131072 states
262144 states
Reserved
16 states
25
MHz
0.32 0.41 0.51 0.68 0.8
0.65 0.82 1.0
1.3
2.6
5.2
10.4
—
0.6
20
MHz
1.6
3.3
6.6
—
0.8
13.1 16.4 21.8 26.2 32.8 43.6 65.6 131.2
2.0
4.1
—
16
MHz
1.0
8.2
12
MHz
1.3
2.7
5.5
—
1.3
10.9 13.1 16.4 21.8 32.8 65.5
10
MHz
1.6
3.3
6.6
—
1.6
8
MHz
1.0
2.0
4.1
—
2.0
8.2
6
MHz
1.3
2.7
5.5
—
2.7
10.9 16.4 32.8
4
MHz
2.0
4.1
—
4.0
8.2 16.4
2
MHz
4.1
—
8.0
8.2
Unit
ms
—
μs
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