DF2398TE20 Renesas Electronics America, DF2398TE20 Datasheet - Page 434

• Manufacturer Part Number: DF2398TE20
• Description: IC H8S MCU FLASH 256K 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2398TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: 120-TQFP, 120-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2398TE20; HD64F2398TE20

10.7
Note that the kinds of operation and contention described below occur during TPU operation.
Input Clock Restrictions: The input clock pulse width must be at least 1.5 states in the case of single-edge detection, and
at least 2.5 states in the case of both-edge detection. The TPU will not operate properly with a narrower pulse width.
In phase counting mode, the phase difference and overlap between the two input clocks must be at least 1.5 states, and the
pulse width must be at least 2.5 states. Figure 10-48 shows the input clock conditions in phase counting mode.
Caution on Period Setting: When counter clearing by compare match is set, TCNT is cleared in the final state in which it
matches the TGR value (the point at which the count value matched by TCNT is updated). Consequently, the actual
counter frequency is given by the following formula:
Where
Rev.6.00 Oct.28.2004 page 404 of 1016
REJ09B0138-0600H
f =
Usage Notes
f
ø : Operating frequency
N : TGR set value
(N + 1)
: Counter frequency
ø
TCLKA
(TCLKC)
TCLKB
(TCLKD)
Notes: Phase difference and overlap
Figure 10-48 Phase Difference, Overlap, and Pulse Width in Phase Counting Mode
Pulse width
Overlap
Pulse width
Phase
differ-
ence
Overlap
: 1.5 states or more
: 2.5 states or more
Phase
differ-
ence
Pulse width
Pulse width
Pulse width