HD64F3694H Renesas Electronics America, HD64F3694H Datasheet - Page 309

• Manufacturer Part Number: HD64F3694H
• Description: IC H8 MCU FLASH 32K 64QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F3694H

• 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: 64-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

17.2
Pins used in the EEPROM are listed in table 17.1.
Table 17.1 Pin Configuration
17.3
The EEPROM has a following register.
17.3.1
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)
Symbol
SCL
SDA
Input/Output
Input
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 21.2.3, 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
and the C
Characteristics and in section 21.2.3, 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
, I
OL
, and the C
IN
pin capacitance in section 21.2.2, DC
Rev.5.00 Nov. 02, 2005 Page 279 of 418
IN
pin capacitance in section 21.2.2,
Section 17 EEPROM
REJ09B0028-0500
2
C pin. Use
OL
, I
OL
,