HD64F3687GFPV Renesas Electronics America, HD64F3687GFPV Datasheet - Page 369

• Manufacturer Part Number: HD64F3687GFPV
• Description: IC H8 MCU FLASH 56K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F3687GFPV

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 56KB (56K 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
• Package: 64LQFP
• Family Name: H8
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 16|32 Bit
• Number Of Programmable I/os: 45
• Interface Type: I2C/SCI
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 3
• For Use With: R0K436079S000BE - KIT DEV FOR H8/36079 W/COMPILER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

17.6
In master mode, this module has a possibility that high level period may be short in the two states
described below.
Therefore, it monitors SCL and communicates by bit with synchronization.
Figure 17.21 shows the timing of the bit synchronous circuit and table 17.4 shows the time when
SCL output changes from low to Hi-Z then SCL is monitored.
Table 17.4 Time for Monitoring SCL
CKS3
0
1
When SCL is driven to low by the slave device
When the rising speed of SCL is lowered by the load of the SCL line (load capacitance or pull-
up resistance)
Bit Synchronous Circuit
SCL monitor
timing reference
clock
Internal SCL
Figure 17.21 The Timing of the Bit Synchronous Circuit
CKS2
0
1
0
1
SCL
Time for Monitoring SCL
7.5 tcyc
19.5 tcyc
17.5 tcyc
41.5 tcyc
VIH
Rev.5.00 Nov. 02, 2005 Page 335 of 500
Section 17 I
2
C Bus Interface 2 (IIC2)
REJ09B0027-0500