HD64F3694FY Renesas Electronics America, HD64F3694FY Datasheet - Page 313
HD64F3694FY
Manufacturer Part Number
HD64F3694FY
Description
IC H8 MCU FLASH 32K 48-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.HD64F3694GFYV.pdf
(452 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HD64F3694FYJV
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
Company:
Part Number:
HD64F3694FYV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 313 of 452
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17.4.7
There are two types write operations; byte write operation and page write operation. To initiate
the write operation, input 0 to R/W code following the slave address.
1. Byte Write
2. Page Write
SDA
SCL
[Legend]
R/W: R/W code (0 is for a write and 1 is for a read)
ACK: acknowledge
A write operation requires an 8-bit data of a 7-bit slave address with R/W code = "0". Then
the EEPROM sends acknowledgement "0" at the ninth bit. This enters the write mode. Then,
two bytes of the memory address are received from the MSB side in the order of upper and
lower. Upon receipt of one-byte memory address, the EEPROM sends acknowledgement "0"
and receives a following a one-byte write data. After receipt of write data, the EEPROM sends
acknowledgement "0". If the EEPROM receives a stop condition, the EEPROM enters an
internally controlled write cycle and terminates receipt of SCL and SDA inputs until
completion of the write cycle. The EEPROM returns to a standby mode after completion of
the write cycle.
The byte write operation is shown in figure 17.3.
This LSI is capable of the page write operation which allows any number of bytes up to 8 bytes
to be written in a single write cycle. The write data is input in the same sequence as the byte
write in the order of a start condition, slave address + R/W code, memory address (n), and
write data (Dn) with every ninth bit acknowledgement "0" output. The EEPROM enters the
page write operation if the EEPROM receives more write data (Dn+1) is input instead of
receiving a stop condition after receiving the write data (Dn). LSB 3 bits (A2 to A0) in the
EEPROM address are automatically incremented to be the (n+1) address upon receiving write
data (Dn+1). Thus the write data can be received sequentially.
condition
Start
Write Operations
1
2
3
Slave address
4
5
Figure 17.3 Byte Write Operation
6
7
R/W ACK
8
9
A15
1
Upper memory
address
A8
8
ACK
9
A7
Rev.5.00 Nov. 02, 2005 Page 283 of 418
1
lower memory
address
A0
8
ACK
9
D7
1
Write Data
Section 17 EEPROM
REJ09B0028-0500
D0
8
ACK
9
conditon
Stop
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