DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 921

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2345TE20; HD64F2345TE20

Timing of Transition to Hardware Standby Mode
(1) To retain RAM contents with the RAME bit set to 1 in SYSCR, drive the RES signal low at
(2) To retain RAM contents with the RAME bit cleared to 0 in SYSCR, or when RAM contents do
Timing of Recovery from Hardware Standby Mode
Drive the RES signal low and the NMI signal high approximately 100 ns or more before STBY
goes high to execute a power-on reset.
Appendix E Timing of Transition to and Recovery from
least 10 states before the STBY signal goes low, as shown below. RES must remain low until
STBY signal goes low (delay from STBY low to RES high: 0 ns or more).
not need to be retained, RES does not have to be driven low as in (1).
STBY
RES
STBY
RES
NMI
Figure E.2 Timing of Recovery from Hardware Standby Mode
Figure E.1 Timing of Transition to Hardware Standby Mode
Appendix E Timing of Transition to and Recovery from Hardware Standby Mode
Hardware Standby Mode
t
1
10t
t
cyc
100ns
t
2
Rev. 4.00 Feb 15, 2006 page 895 of 900
0ns
t
OSC
t
NMIRH
REJ09B0291-0400