PIC16F689-I/SO Microchip Technology, PIC16F689-I/SO Datasheet - Page 121
![IC PIC MCU FLASH 4KX14 20SOIC](/photos/6/64/66480/150-20-soic_sml.jpg)
PIC16F689-I/SO
Manufacturer Part Number
PIC16F689-I/SO
Description
IC PIC MCU FLASH 4KX14 20SOIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F690DM-PCTLHS.pdf
(306 pages)
3.PIC16F677-IP.pdf
(2 pages)
4.PIC16F677-IP.pdf
(16 pages)
5.PIC16F677-ISO.pdf
(294 pages)
Specifications of PIC16F689-I/SO
Program Memory Type
FLASH
Program Memory Size
7KB (4K x 14)
Package / Case
20-SOIC (7.5mm Width)
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
18
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
I2C/SPI/SSP/EUSART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
17
Number Of Timers
2
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 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, DM163029, DM164120
Minimum Operating Temperature
- 40 C
On-chip Adc
12-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT20SO1-1 - SOCKET TRANS ICE 20DIP TO 20SOICXLT28SO-1 - SOCKET TRANSITION 28SOIC 300MILXLT18SO-1 - SOCKET TRANSITION 18SOIC 300MILAC162061 - HEADER INTRFC MPLAB ICD2 20PINAC164039 - MODULE SKT PROMATE II 20DIP/SOIC
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC16F690DM-PCTLHS PDF datasheet #2
- PIC16F677-IP PDF datasheet #3
- PIC16F677-IP PDF datasheet #4
- PIC16F677-ISO PDF datasheet #5
- Current page: 121 of 294
- Download datasheet (6Mb)
10.0
Data EEPROM memory is readable and writable and
the Flash program memory (PIC16F685/PIC16F689/
PIC16F690 only) is readable during normal operation
(full V
mapped in the register file space. Instead, they are indi-
rectly addressed through the Special Function Regis-
ters (SFRs). There are six SFRs used to access these
memories:
• EECON1
• EECON2
• EEDAT
• EEDATH (PIC16F685/PIC16F689/PIC16F690 only)
• EEADR
• EEADRH (PIC16F685/PIC16F689/PIC16F690 only)
When interfacing the data memory block, EEDAT holds
the 8-bit data for read/write, and EEADR holds the
address of the EEDAT location being accessed. These
devices, except for the PIC16F631, have 256 bytes of
data EEPROM with an address range from 0h to 0FFh.
The PIC16F631 has 128 bytes of data EEPROM with
an address range from 0h to 07Fh.
When accessing the program memory block of the
PIC16F685/PIC16F689/PIC16F690 devices, the EEDAT
and EEDATH registers form a 2-byte word that holds the
14-bit data for read/write, and the EEADR and EEADRH
registers form a 2-byte word that holds the 12-bit address
of the EEPROM location being read. These devices
(PIC16F685/PIC16F689/PIC16F690) have 4K words of
program EEPROM with an address range from 0h to
0FFFh. The program memory allows one-word reads.
The EEPROM data memory allows byte read and write.
A byte write automatically erases the location and
writes the new data (erase before write).
The write time is controlled by an on-chip timer. The
write/erase voltages are generated by an on-chip
charge pump rated to operate over the voltage range of
the device for byte or word operations.
When the device is code-protected, the CPU may
continue to read and write the data EEPROM memory
and read the program memory. When code-protected,
the device programmer can no longer access data or
program memory.
© 2006 Microchip Technology Inc.
DD
DATA EEPROM AND FLASH
PROGRAM MEMORY
CONTROL
range). These memories are not directly
PIC16F631/677/685/687/689/690
Preliminary
10.1
The EEADR and EEADRH registers can address up to
a maximum of 256 bytes of data EEPROM or up to a
maximum of 4K words of program EEPROM.
When selecting a program address value, the MSB of
the address is written to the EEADRH register and the
LSB is written to the EEADR register. When selecting a
data address value, only the LSB of the address is
written to the EEADR register.
10.1.1
EECON1 is the control register for EE memory
accesses.
Control bit EEPGD (PIC16F685/PIC16F689/PIC16F690)
determines if the access will be a program or data mem-
ory access. When clear, as it is when reset, any subse-
quent operations will operate on the data memory. When
set, any subsequent operations will operate on the pro-
gram memory. Program memory can only be read.
Control bits RD and WR initiate read and write,
respectively. These bits cannot be cleared, only set, in
software. They are cleared in hardware at completion
of the read or write operation. The inability to clear the
WR bit in software prevents the accidental, premature
termination of a write operation.
The WREN bit, when set, will allow a write operation to
data EEPROM. On power-up, the WREN bit is clear.
The WRERR bit is set when a write operation is
interrupted by a MCLR or a WDT Time-out Reset
during normal operation. In these situations, following
Reset, the user can check the WRERR bit and rewrite
the location.
Interrupt flag bit EEIF of the PIR2 register is set when
write is complete. It must be cleared in the software.
EECON2 is not a physical register. Reading EECON2
will read all ‘0’s. The EECON2 register is used
exclusively in the data EEPROM write sequence.
EEADR and EEADRH Registers
EECON1 AND EECON2 REGISTERS
DS41262C-page 119
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