PIC16F818T-E/SS Microchip Technology, PIC16F818T-E/SS Datasheet - Page 87
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PIC16F818T-E/SS
Manufacturer Part Number
PIC16F818T-E/SS
Description
IC PIC MCU FLASH 1KX14 20SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F818-ISO.pdf
(176 pages)
4.PIC16F818-ISO.pdf
(6 pages)
5.PIC16F818-ISO.pdf
(8 pages)
6.PIC16F818-ISO.pdf
(8 pages)
Specifications of PIC16F818T-E/SS
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Size
1.75KB (1K x 14)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
20-SSOP
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
I2C, SPI, SSP
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
16
Number Of Timers
1 x 16 bit
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163014
Minimum Operating Temperature
- 40 C
On-chip Adc
5 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
11.2
The A/D conversion time per bit is defined as T
A/D conversion requires 9.0 T
The source of the A/D conversion clock is software
selectable. The seven possible options for T
• 2 T
• 4 T
• 8 T
• 16 T
• 32 T
• 64 T
• Internal A/D module RC oscillator (2-6 s)
For correct A/D conversions, the A/D conversion clock
(T
as small as possible, but no less than 1.6 s and not
greater than 6.4 s.
Table 11-1 shows the resultant T
the device operating frequencies and the A/D clock
source selected.
TABLE 11-1:
2003 Microchip Technology Inc.
Note 1:
AD
) must be selected to ensure a minimum T
OSC
OSC
OSC
OSC
OSC
OSC
2:
3:
Operation
RC
16 T
32 T
64 T
Selecting the A/D Conversion
Clock
2 T
4 T
8 T
The RC source has a typical T
When the device frequencies are greater than 1 MHz, the RC A/D conversion clock source is only
recommended for Sleep operation.
For extended voltage devices (LF), please refer to Section 15.0 “Electrical Characteristics”.
(1,2,3)
OSC
OSC
OSC
OSC
OSC
OSC
T
AD
vs. MAXIMUM DEVICE OPERATING FREQUENCIES (STANDARD DEVICES (F))
AD Clock Source (T
AD
AD
per 10-bit conversion.
ADCS<2>
times derived from
0
1
0
1
0
1
X
AD
AD
time of 4 s but can vary between 2-6 s.
AD
are:
AD
. The
time
AD
)
ADCS<1:0>
11.3
The ADCON1 and TRISA registers control the opera-
tion of the A/D port pins. The port pins that are desired
as analog inputs must have their corresponding TRIS
bits set (input). If the TRIS bit is cleared (output), the
digital output level (V
The A/D operation is independent of the state of the
CHS<2:0> bits and the TRIS bits.
Note 1: When reading the Port register, all pins
00
00
01
01
10
10
11
2: Analog levels on any pin that is defined as
Configuring Analog Port Pins
configured as analog input channels will
read as cleared (a low level). Pins config-
ured as digital inputs will convert an
analog input. Analog levels on a digitally
configured input will not affect the
conversion accuracy.
a digital input (including the AN4:AN0
pins) may cause the input buffer to
consume current out of the device
specification.
PIC16F818/819
OH
Maximum Device Frequency
or V
OL
) will be converted.
1.25 MHz
2.5 MHz
(Note 1)
10 MHz
20 MHz
20 MHz
5 MHz
DS39598D-page 85