PIC16C712-04/SO Microchip Technology, PIC16C712-04/SO Datasheet - Page 50

• Manufacturer Part Number: PIC16C712-04/SO
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SOP,18PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C712-04/SO

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 13
• Program Memory Size: 1.75KB (1K x 14)
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 18-SOIC (7.5mm Width)
• Processor Series: PIC16C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 13
• Number Of Timers: 3 bit
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000
• Minimum Operating Temperature: 0 C
• On-chip Adc: 4 bit
• Data Rom Size: 128 B
• Height: 2.31 mm
• Length: 11.53 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4 V
• Width: 7.49 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

PIC16C712/716
8.1
For the A/D converter to meet its specified accuracy,
the Charge Holding capacitor (C
to fully charge to the input channel voltage level. The
analog input model is shown in Figure 8-4. The source
impedance (R
impedance directly affect the time required to charge
the capacitor C
impedance varies over the device voltage (V
source impedance affects the offset voltage at the
analog input (due to pin leakage current). The
maximum recommended impedance for analog
sources is 10 k . After the analog input channel is
selected (changed) this acquisition must be done
before the conversion can be started.
FIGURE 8-4:
DS41106B-page 48
A/D Acquisition Requirements
S
) and the internal sampling switch (R
HOLD
Legend: C
VA
. The sampling switch (R
ANALOG INPUT MODEL
Rs
V
I leakage
R
SS
C
PIN
T
IC
HOLD
ANx
C
5 pF
HOLD
PIN
= input capacitance
= threshold voltage
= leakage current at the pin due to
= interconnect resistance
= sampling switch
= sample/hold capacitance (from DAC)
various junctions
) must be allowed
V
DD
V
DD
T
= 0.6V
). The
V
T
SS
SS
= 0.6V
)
)
I leakage
500 nA
To calculate the minimum acquisition time, T
the
(DS33023). This equation calculates the acquisition
time to within 1/2 LSb error (512 steps for the A/D). The
1/2 LSb error is the maximum error allowed for the A/D
to meet its specified accuracy.
R
Note:
IC
1k
PICmicro
V
SS R
DD
Sampling
Switch
When the conversion is started, the hold-
ing capacitor is disconnected from the
input pin.
6V
5V
4V
3V
2V
®
SS
Mid-Range
Sampling Switch
5 6 7 8 9 10 11
V
© 2005 Microchip Technology Inc.
SS
C
= DAC capacitance
= 51.2 pF
(k )
HOLD
Reference
ACQ
Manual,
, see