PIC18F2331-E/SP Microchip Technology, PIC18F2331-E/SP Datasheet - Page 258

• Manufacturer Part Number: PIC18F2331-E/SP
• Description: IC MCU FLASH 4KX16 28-DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2331-E/SP

• Core Size: 8-Bit
• Program Memory Size: 8KB (4K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Controller Family/series: PIC18
• No. Of I/o's: 24
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: I3-DB18F4431 - BOARD DAUGHTER ICEPIC3AC164035 - MODULE SKT FOR 18F2X31 28SOICDVA18XP280 - DEVICE ADAPTER 18F2220 PDIP 28LD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC18F2331/2431/4331/4431
EXAMPLE 20-1:
FIGURE 20-2:
DS39616C-page 256
T
T
T
Temperature coefficient is only required for temperatures > 25°C. Below 25°C, T
T
T
ACQ
AMP
COFF
C
ACQ
Note: If the converter module has been in Sleep mode, T
=
=
=
=
=
Note:
Legend: C
T
Negligible
(Temp – 25°C)(0.005 μs/°C)
(50°C – 25°C)(0.005 μs/°C) = .13 μs
-(C
-(9 pF) (1 kΩ + 6 kΩ + 100Ω) ln(0.0004883) μs = .49 μs
0 + .49 μs + .13 μs = .62 μs
V
AMP
AIN
HOLD
Rs
+ T
For V
) (R
V
I
R
SS
C
R
CALCULATING THE MINIMUM REQUIRED ACQUISITION TIME
ANALOG INPUT MODEL
C
LEAKAGE
T
PIN
IC
HOLD
SS
ANx
+ T
DD
IC
C
5 pF
PIN
COFF
< 2.7V and temperatures below 0°C, V
+ R
SS
= Input Capacitance
= Threshold Voltage
= Leakage Current at the pin due to
= Interconnect Resistance
= Sampling Switch
= Sample/Hold Capacitance (from DAC)
= Sampling Switch Resistance
various junctions
+ R
S
) ln(1/2047) μs
V
DD
V
V
T
T
= 0.6V
= 0.6V
Preliminary
AMP
is 2.0 μs from the time the part exits Sleep mode.
AIN
I
±500 nA
LEAKAGE
should be restricted to range: V
R
IC
≤ 1k
COFF
V
SS
DD
Sampling
Switch
= 0 μs.
6V
5V
4V
3V
2V
R
SS
© 2007 Microchip Technology Inc.
Sampling Switch
5 6 7 8 9 10 11
V
AIN
SS
C
HOLD
< V
DD
= 9 pF
/2.
(kΩ)