HD64F3684FP Renesas Electronics America, HD64F3684FP Datasheet - Page 385

• Manufacturer Part Number: HD64F3684FP
• Description: IC H8 MCU FLASH 32K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F3684FP

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K 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: 64-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

19.2
Pins used in the EEPROM are listed in table 19.1.
Table 19.1 Pin Configuration
19.3
The EEPROM has a following register.
19.3.1
EKR is an 8-bit readable/writable register, which changes the slave address code written in the
EEPROM. The slave address code is changed by writing H'5F in EKR and then writing either of
H'00 to H'07 as an address code to the H'FF09 address in the EEPROM by the byte write method.
EKR is initialized to H'FF.
Pin name
Serial clock pin
Serial data pin
EEPROM key register (EKR)
Input/Output Pins
Register Description
EEPROM Key Register (EKR)
SCL
SDA
Symbol
Input
Input/Output
Input/Output Function
The SCL pin is used to control serial input/output data
timing. The data is input at the rising edge of the
clock and output at the falling edge of the clock. The
SCL pin needs to be pulled up by resistor as that pin
is open-drain driven structure of the I
proper resistor value for your system by considering
V
DC Characteristics and in section 23.2.3, AC
Characteristics. Maximum clock frequency is 400
kHz.
The SDA pin is bidirectional for serial data transfer.
The SDA pin needs to be pulled up by resistor as that
pin is open-drain driven structure. Use proper resistor
value for your system by considering V
C
Characteristics and in section 23.2.3, AC
Characteristics. Except for a start condition and a
stop condition which will be discussed later, the high-
to-low and low-to-high change of SDA input should be
done during SCL low periods.
OL
IN
, I
pin capacitance in section 23.2.2, DC
OL
, and the C
Rev.5.00 Nov. 02, 2005 Page 351 of 500
IN
pin capacitance in section 23.2.2,
Section 19 EEPROM
2
C pin. Use
REJ09B0027-0500
OL
, I
OL
, and the