DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 421

• Manufacturer Part Number: DF2148ATE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148ATE20

• 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: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148ATE20; HD64F2148ATE20

Table 12.8 Switching of Internal Clock and TCNT Operation
No.
1
2
Timing of Switchover
by Means of CKS1
and CKS0 Bits
Switching from low
to low *
Switching from low
to high *
1
2
TCNT Clock Operation
Clock before
switchover
Clock after
switchover
TCNT clock
TCNT
Clock before
switchover
Clock after
switchover
TCNT clock
TCNT
N
N
CKS bit rewrite
Rev. 4.00 Sep 27, 2006 page 375 of 1130
N + 1
CKS bit rewrite
N + 1
Section 12 8-Bit Timers
N + 2
REJ09B0327-0400