PIC16F872-E/SO Microchip Technology, PIC16F872-E/SO Datasheet - Page 80

• Manufacturer Part Number: PIC16F872-E/SO
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SOP,28PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F872-E/SO

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16F872
9.3
For standard mode I
resistors R
lowing parameters:
• Supply voltage
• Bus capacitance
• Number of connected devices
The supply voltage limits the minimum value of resistor
R
at V
example, with a supply voltage of V
FIGURE 9-27:
DS30221C-page 78
p
(input current + leakage current).
, due to the specified minimum sink current of 3 mA
OL
Note:
max = 0.4V, for the specified output stages. For
Connection Considerations for I
Bus
p
and R
I
2
also connected.
C devices with input levels related to V
s
in Figure 9-27 depend on the fol-
2
SAMPLE DEVICE CONFIGURATION FOR I
C bus devices, the values of
SDA
SCL
Rp
DD
= 5V+10% and
Rp
DD
2
Rs
C
must have one common supply line to which the pull-up resistor is
V
DD
DEVICE
Rs
+ 10%
V
1.7 k
Figure 9-27. The desired noise margin of 0.1 V
the low level limits the maximum value of R
resistors are optional and used to improve ESD
susceptibility.
The bus capacitance is the total capacitance of wire,
connections, and pins. This capacitance limits the max-
imum value of R
(Figure 9-27).
The SMP bit is the slew rate control enabled bit. This bit
is in the SSPSTAT register, and controls the slew rate
of the I/O pins when in I
OL
max = 0.4V at 3 mA, R
V
2
C BUS
DD
, as a function of R
p
, due to the specified rise time
C
b
2
© 2006 Microchip Technology Inc.
=10 - 400 pF
C mode (master or slave).
p min
= (5.5-0.4)/0.003 =
p
, is shown in
s
. Series
DD
for