PIC16F785-I/SO Microchip Technology, PIC16F785-I/SO Datasheet - Page 101

• Manufacturer Part Number: PIC16F785-I/SO
• Description: IC PIC MCU FLASH 2KX14 20SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F785-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 20-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Eeprom Size: 256 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: RS- 232/USB
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 3
• 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, DV164120, DM163029
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SO1-1 - SOCKET TRANS ICE 20DIP TO 20SOICXLT18SO-1 - SOCKET TRANSITION 18SOIC 300MILAC162060 - HEADER INTRFC MPLAB ICD2 20PINAC164039 - MODULE SKT PROMATE II 20DIP/SOIC
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

14.0
The EEPROM data memory is readable and writable
during normal operation (full V
is not directly mapped in the register file space.
Instead, it is indirectly addressed through the Special
Function Registers. There are four SFRs used to read
and write this memory:
• EECON1
• EECON2 (not a physically implemented register)
• EEDAT
• EEADR
EEDAT holds the 8-bit data for read/write, and EEADR
holds the address of the EEPROM location being
accessed. The PIC16F785 has 256 bytes of data
EEPROM with an address range from 0h to FFh.
REGISTER 14-1:
REGISTER 14-2:
 2004 Microchip Technology Inc.
DATA EEPROM MEMORY
bit 7-0
bit 7-0
EEDAT — EEPROM DATA REGISTER (ADDRESS: 9Ah)
bit 7
EEDATn: Byte Value to Write to or Read From Data EEPROM bits
Legend:
R = Readable bit
- n = Value at POR
bit 7
EEADR: Specifies one of 256 locations for EEPROM Read/Write Operation bits
Legend:
R = Readable bit
- n = Value at POR
EEADR7
EEDAT7
EEADR — EEPROM ADDRESS REGISTER (ADDRESS: 9Bh)
R/W-0
R/W-0
DD
range). This memory
EEADR6
EEDAT6
R/W-0
R/W-0
EEADR5
EEDAT5
R/W-0
R/W-0
Preliminary
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
EEADR4
EEDAT4
R/W-0
R/W-0
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 EEPROM
data memory is rated for high erase/write cycles. The
write time is controlled by an on-chip timer. The write
time will vary with voltage and temperature, as well as
from chip-to-chip. Please refer to AC Specifications in
Section 18.0 “Electrical Specifications” for exact
limits.
When the data memory is code-protected, the CPU
may continue to read and write the data EEPROM
memory. The device programmer can no longer access
the data EEPROM data and will read zeroes.
Additional information on the data EEPROM is
available in the PICmicro
ual , (DS33023).
EEADR3
EEDAT3
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
R/W-0
EEADR2 EEADR1 EEADR0
EEDAT2 EEDAT1
R/W-0
R/W-0
®
PIC16F785
Mid-Range Reference Man-
x = Bit is unknown
x = Bit is unknown
R/W-0
R/W-0
DS41249A-page 99
EEDAT0
R/W-0
R/W-0
bit 0
bit 0