DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 531

• Manufacturer Part Number: DF2238RTF6
• Description: MCU 2.2/3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2238RTF6

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 6MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 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: HD64F2238RTF6; HD64F2238RTF6

Notes: 1. Only 0 can be written, for flag clearing.
Bit
2
1
0
2. When the OVF flag is polled with the interval timer interrupt disabled, read the OVF bit
3. The overflow period is the time from when TCNT starts counting up from H'00 until
Bit Name
CKS2
CKS1
CKS0
while it is 1 at least twice.
overflow occurs.
Initial
Value
0
0
0
R/W
R/W
R/W
R/W
101: Clock φ/8192 (frequency: 209.8 ms)
110: Clock φ/32768 (frequency: 838.8 ms)
111: Clock φ/131072 (frequency: 3.36 s)
Description
Clock Select 0 to 2
Selects the clock source to be input to TCNT. The
overflow frequency *
parentheses.
000: Clock φ/2 (frequency: 51.2 μs)
001: Clock φ/64 (frequency: 1.6 ms)
010: Clock φ/128 (frequency: 3.2 ms)
011: Clock φ/512 (frequency: 13.2 ms)
100: Clock φ/2048 (frequency: 52.4 ms)
Rev. 6.00 Mar. 18, 2010 Page 469 of 982
Section 13 Watchdog Timer (WDT)
3
for φ = 10 MHz is enclosed in
REJ09B0054-0600