HD64F36077GHV Renesas Electronics America, HD64F36077GHV Datasheet - Page 113

• Manufacturer Part Number: HD64F36077GHV
• Description: 16BIT MCU FLASH 56K, SMD, LQFP64
• Manufacturer: Renesas Electronics America

Specifications of HD64F36077GHV

• No. Of I/o's: 47
• Ram Memory Size: 4KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Supply Voltage Range: 4.5V
• Core Size: 16bit
• Program Memory Size: 56KB
• Oscillator Type: External Only
• Controller Family/series: H8/300H
• Peripherals: ADC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The on-chip oscillator frequency is gained by the expression below. Since the input-capture input
is sampled by the
5.5
There are two methods to supply external clock pulses into this LSI: connecting a crystal or
ceramic resonator, and an external clock. Oscillation pins OSC1 and OSC2 are common with
general ports PC0 and PC1, respectively. To set pins PC0 and PC1 as crystal resonator or external
clock input ports, refer to section 5.2.4, Clock Control/Status Register (CKCSR).
5.5.1
Figure 5.11 shows an example of connecting a crystal resonator. An AT-cut parallel-resonance
crystal resonator should be used. Figure 5.12 shows the equivalent circuit of a crystal resonator. A
resonator having the characteristics given in table 5.1 should be used.
RC
FTIOA0 input
clock.
capture input
Timer Z
GRC_0
GRA_0
t
M:
TCNT
A
RC =
RC: Frequency of on-chip oscillator (MHz)
Figure 5.10 Timing Chart of Trimming of On-Chip Oscillator Frequency
External Oscillators
Connecting Crystal Resonator
:
RC
Period of reference clock ( s)
Timer Z counter value
(M + )
M
RC
t
A
1
clock, the calculated result may include a sampling error of 1 cycle of the
M
M
N
Capture 1
M
(MHz)
M
N
1
t
A
( s)
Rev. 1.00 Sep. 16, 2005 Page 83 of 490
Section 5 Clock Pulse Generator
M
REJ09B0216-0100
M +
Capture 2
M