HD64F3337YCP16V Renesas Electronics America, HD64F3337YCP16V Datasheet - Page 383

• Manufacturer Part Number: HD64F3337YCP16V
• Description: MCU 3/5V 60K PB-FREE 84-PLCC
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300r

Specifications of HD64F3337YCP16V

• Core Size: 8-Bit
• Program Memory Size: 60KB (60K x 8)
• Oscillator Type: Internal
• Core Processor: H8/300
• Speed: 16MHz
• Connectivity: Host Interface, I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 84-PLCC
• No. Of I/o's: 74
• Ram Memory Size: 1KB
• Cpu Speed: 16MHz
• No. Of Timers: 6
• No. Of Pwm Channels: 2
• Digital Ic Case Style: PLCC
• Controller Family/series: H8/300
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

15.6.5
The analog inputs of the H8/3337 Series and H8/3397 Series are designed to assure accurate
conversion of input signals with a signal-source impedance not exceeding 10 k . The reason for
this rating is that it enables the input capacitor in the sample-and-hold circuit in the A/D converter
to charge within the sampling time. If the sensor output impedance exceeds 10 k , charging may
be inadequate and the accuracy of A/D conversion cannot be guaranteed.
If a large external capacitor is provided, then the internal 10 k input resistance becomes the only
significant load on the input. In this case the impedance of the signal source is not a problem.
A large external capacitor, however, acts as a low-pass filter. This may make it impossible to track
analog signals with a large differential coefficient (e.g. 5 mV/ s or more).
To convert high-speed analog signals, insert a low-impedance buffer.
Allowable Signal-Source Impedance
Figure 15.9 A/D Conversion Accuracy Definitions (2)
Digital output
Ideal A/D
conversion
characteristic
Offset error
Actual A/D conversion
characteristic
Nonlinearity
error
Full-scale error
Analog input
voltage
FS
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