DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 371

MCU 5V 128K I-TEMP,PB-FREE, 100-

DF2148RTE20IV

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

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
-
11.3
11.3.1
FRC increments on a pulse generated once for each period of the selected (internal or external)
clock source.
Internal Clock
Any of three internal clocks ( /2, /8, or /32) created by division of the system clock ( ) can be
selected by making the appropriate setting in bits CKS1 and CKS0 in TCR. Figure 11.3 shows the
increment timing.
External Clock
If external clock input is selected by bits CKS1 and CKS0 in TCR, FRC increments on the rising
edge of the external clock signal.
The pulse width of the external clock signal must be at least 1.5 system clock ( ) periods. The
counter will not increment correctly if the pulse width is shorter than 1.5 system clock periods.
Figure 11.4 shows the increment timing.
Internal
clock
FRC input
clock
FRC
Operation
FRC Increment Timing
Figure 11.3 Increment Timing with Internal Clock Source
N – 1
N
Rev. 4.00 Sep 27, 2006 page 325 of 1130
Section 11 16-Bit Free-Running Timer
REJ09B0327-0400
N + 1

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