HD64F7144F50V Renesas Electronics America, HD64F7144F50V Datasheet - Page 572
HD64F7144F50V
Manufacturer Part Number
HD64F7144F50V
Description
IC SUPERH MCU FLASH 256K 112QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7144r
Specifications of HD64F7144F50V
Core Processor
SH-2
Core Size
32-Bit
Speed
50MHz
Connectivity
EBI/EMI, I²C, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
74
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
112-QFP
For Use With
HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)EDK7145 - DEV EVALUATION KIT SH7145
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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14. I
14.4.9
The states on the SCL and SDA pins are fetched internally via the noise canceller. Figure 14.28 is
a block diagram of the noise canceller.
The noise canceller consists of a 2-stage latch circuit and match-detection circuit, which are
connected in series. The input signal on the SCL pin (or on the SDA pin) is sampled on the system
clock; when the two latch outputs match, the given level is then sent to the next stage. If the two
values do not match, the existing value is maintained.
14.4.10 Initialization of Internal State
This IIC module has a function for forcible initialization of its internal state if a deadlock occurs
during communication.
Initialization is executed by clearing ICE bit.
Rev.4.00 Mar. 27, 2008 Page 526 of 882
REJ09B0108-0400
SCL input signal or
SDA input signal
2
C Bus Interface (IIC) Option
Sampling clock
Noise Canceller
Figure 14.28 Block Diagram of the Noise Canceller
System clock period
D
Sampling clock
Latch
C
Q
D
Latch
C
Q
Match-detection
circuit
Internal SCL signal or
Internal SDA signal
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