PIC16F785-E/SS Microchip Technology, PIC16F785-E/SS Datasheet - Page 25

• Manufacturer Part Number: PIC16F785-E/SS
• Description: 20 PIN, 3.5 KB STD FLASH, 128 RAM, 18 I/O PB FREE,
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F785-E/SS

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• 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 ~ 125°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SS1-1 - SOCKET TRANSITION 20DIP 20SSOPAC162060 - HEADER INTRFC MPLAB ICD2 20PIN
• Connectivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TABLE 5-1:
5.3.2
The programmer should be able to read data memory
information from a hex file and conversely (as an
option), write data memory contents to a hex file along
with program memory information and Configuration
Word
information.
The 256 data memory locations are logically mapped
starting at address 0x2100. The format for data
memory storage is one data byte per address location,
LSb aligned.
 2009 Microchip Technology Inc.
PIC16F785/HV785
Legend: CFGW = Configuration Word. Example calculations assume Configuration Word is erased (all 1’s).
Note 1:
Device
(0x2007)
SUM[a:b] = [Sum of locations a to b inclusive]
SUM_ID = User ID locations masked by 0xF then made into a 16-bit value with ID0 as the Most Significant
nibble.
* = Checksum
+ = Addition
& = Bitwise AND
Checksum shown assumes that both the data and program memory are code-protected and that SUM_ID
contains the unprotected checksum.
EMBEDDING DATA MEMORY
CONTENTS IN HEX FILE
For example, ID0 = 0x1, ID1 = 0x2, ID3 = 0x3, ID4 = 0x4, then SUM_ID = 0x1234.
The 4 LSbs of the unprotected checksum is used for the example calculations.
CHECKSUM COMPUTATIONS
and
Code-Protect
user
– [
Sum of all the individual expressions] MODULO [0xFFFF]
OFF
ALL
ID
(0x2000-0x2003)
SUM[0x0000:0x7FF] + CFGW & 0FFF
CFGW & 0x0FFF + SUM_ID
Checksum*
PIC16F785/HV785
173E
Blank
Value
07FF
(1)
DS41237D-page 25
0x25E6 at 0
and Max.
Address
E30C
D3CD
(1)