PIC12C671/JW Microchip Technology, PIC12C671/JW Datasheet - Page 438

• Manufacturer Part Number: PIC12C671/JW
• Description: IC MCU EPROM 1KX14 A/D 8CDIP
• Manufacturer: Microchip Technology
• Series: PIC® 12Cr

Specifications of PIC12C671/JW

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 10MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• Program Memory Size: 1.75KB (1K x 14)
• Program Memory Type: EPROM, UV
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 8-CDIP (0.300", 7.62mm) Window
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Connectivity: -

PICmicro MID-RANGE MCU FAMILY
23.11
23.12
DS31023A-page 23-16
Connection Considerations
Transfer Function
If the input voltage exceeds the rail values (V
of the conversion is out of specification.
An external RC filter is sometimes added for anti-aliasing of the input signal. The R component
should be selected to ensure that the total source impedance is kept under the 10 k
mended specification. Any external components connected (via hi-impedance) to an analog
input pin (capacitor, zener diode, etc.) should have very little leakage current at the pin.
The ideal transfer function of the A/D converter is as follows: the first transition occurs when the
analog input voltage (V
Figure 23-7: A/D Transfer Function
3FFh
3FEh
003h
002h
001h
000h
AIN
) is 1 LSb (or Analog V
Preliminary
Analog input voltage
SS
or V
REF
DD
/ 1024)
) by greater than 0.3V, then the accuracy
(Figure
1997 Microchip Technology Inc.
23-7).
recom-