PIC16F818-E/SO Microchip Technology, PIC16F818-E/SO Datasheet - Page 34
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PIC16F818-E/SO
Manufacturer Part Number
PIC16F818-E/SO
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SOP,18PIN,PLASTIC
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 PIC16F818-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
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
18-SOIC (7.5mm Width)
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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F818-E/SO
Manufacturer:
Microchip Technology
Quantity:
135
PIC16F818/819
3.8
There are conditions when the device should not write
to the data EEPROM memory. To protect against
spurious EEPROM writes, various mechanisms have
been built-in. On power-up, WREN is cleared. Also, the
Power-up
EEPROM write.
The write initiate sequence and the WREN bit together
help prevent an accidental write during brown-out,
power glitch or software malfunction.
TABLE 3-1:
DS39598E-page 32
10Ch
10Dh
10Eh
10Fh
18Ch
18Dh
0Dh
8Dh
Legend:
Address
Protection Against Spurious Write
EEDATA EEPROM/Flash Data Register Low Byte
EEADR
EEDATH
EEADRH
EECON1 EEPGD
EECON2 EEPROM Control Register 2 (not a physical register)
PIR2
PIE2
Name
x = unknown, u = unchanged, - = unimplemented, read as ‘0’, q = value depends upon condition.
Shaded cells are not used by data EEPROM or Flash program memory.
Timer
REGISTERS/BITS ASSOCIATED WITH DATA EEPROM AND
FLASH PROGRAM MEMORIES
EEPROM/Flash Address Register Low Byte
(72 ms
Bit 7
—
—
—
—
duration)
Bit 6
—
—
—
—
—
EEPROM/Flash Data Register High Byte
Bit 5
—
—
—
—
prevents
FREE
EEIE
Bit 4
EEIF
—
an
WRERR
Bit 3
—
—
—
information). External access to the memory is also
disabled.
3.9
When the data EEPROM is code-protected, the micro-
controller can read and write to the EEPROM normally.
However, all external access to the EEPROM is
disabled. External write access to the program memory
is also disabled.
When program memory is code-protected, the micro-
controller can read and write to program memory
normally as well as execute instructions. Writes by the
device may be selectively inhibited to regions of
the memory depending on the setting of bits,
WRT1:WRT0,
Section 12.1 “Configuration Bits” for additional
EEPROM/Flash Address
Register High Byte
WREN
Bit 2
—
—
Operation During Code-Protect
Bit 1
WR
—
—
of
the
Bit 0
RD
—
—
2004 Microchip Technology Inc.
Configuration
xxxx xxxx uuuu uuuu
xxxx xxxx uuuu uuuu
--xx xxxx --uu uuuu
---- -xxx ---- -uuu
x--x x000 x--x q000
---- ---- ---- ----
---0 ---- ---0 ----
---0 ---- ---0 ----
Power-on
Value on
Reset
Word
Value on
all other
Resets
(see