HD64F3694FY Renesas Electronics America, HD64F3694FY Datasheet - Page 287

• Manufacturer Part Number: HD64F3694FY
• Description: IC H8 MCU FLASH 32K 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F3694FY

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: PWM, WDT
• Number Of I /o: 29
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

15.4.7
The logic levels at the SCL and SDA pins are routed through noise cancelers before being latched
internally. Figure 15.16 shows a block diagram of the noise canceler circuit.
The noise canceler consists of two cascaded latches and a match detector. The SCL (or SDA)
input signal is sampled on the system clock, but is not passed forward to the next circuit unless the
outputs of both latches agree. If they do not agree, the previous value is held.
processing
ICDRS
ICDRR
RDRF
(Input)
MST
TRS
SCL
SDA
User
SCL or SDA
input signal
Sampling
clock
Noise Canceler
[2] Set MST
(when outputting the clock)
Bit 0
Figure 15.16 Block Diagram of Noise Conceler
1
Figure 15.15 Receive Mode Operation Timing
Sampling clock
D
System clock
Data 1
period
Latch
Bit 1
C
2
Q
Bit 6
D
7
Latch
[3] Read ICDRR
C
Bit 7
8
Q
Bit 0
Data 2
1
Data 1
Rev.5.00 Nov. 02, 2005 Page 257 of 418
March detector
Section 15 I
Bit 6
7
Bit 7
2
C Bus Interface 2 (IIC2)
8
SCL or SDA
Internal
REJ09B0028-0500
signal
1
[3] Read ICDRR
Data 2
Data 3
Bit 0
2