DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 1172

• Manufacturer Part Number: DF2148RTE20IV
• Description: MCU 5V 128K I-TEMP,PB-FREE, 100-
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148RTE20IV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Appendix E Timing of Transition to and Recovery from Hardware Standby Mode
E.1
(1) To retain RAM contents with the RAME bit set to 1 in SYSCR, drive the RES signal low 10
(2) To retain RAM contents with the RAME bit cleared to 0 in SYSCR, or when RAM contents do
E.2
Drive the RES signal low at least 100 ns before STBY goes high to execute a reset.
Rev. 4.00 Sep 27, 2006 page 1126 of 1130
REJ09B0327-0400
Appendix E Timing of Transition to and Recovery from
system clock cycles before the STBY signal goes low, as shown in figure E.1. RES must
remain low until STBY signal goes low (minimum delay from STBY low to RES high: 0 ns).
not need to be retained, RES does not have to be driven low as in (1).
STBY
RES
STBY
RES
Timing of Transition to Hardware Standby Mode
Timing of Recovery from Hardware Standby Mode
Figure E.2 Timing of Recovery from Hardware Standby Mode
Figure E.1 Timing of Transition to Hardware Standby Mode
Hardware Standby Mode
t
t
1
100 ns
10 t
cyc
t
2
t
OSC1
0 ns