PIC16F1937-I/P Microchip Technology, PIC16F1937-I/P Datasheet - Page 35

• Manufacturer Part Number: PIC16F1937-I/P
• Description: IC PIC MCU FLASH 512KX14 40-PDIP
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1937-I/P

• Program Memory Type: FLASH
• Program Memory Size: 14KB (8K x 14)
• Package / Case: 40-DIP (0.600", 15.24mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 36
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 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: 512 B
• Interface Type: EUSART/MI2C/SPI
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14-ch x 10-bit
• A/d Bit Size: 10 bit
• A/d Channels Available: 14
• Height: 4.95 mm
• Length: 53.21 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Width: 14.73 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

6.0
Code protection is controlled using the CP bit in
Configuration Word 1. When code protection is
enabled, all program memory locations (0000h-7FFFh)
read as all ‘0’. Further programming is disabled for the
program memory (0000h-7FFFh). Program memory
can still be programmed and read during program
execution.
Data memory is protected with its own Code-Protect bit
(CPD). When data code protection is enabled (CPD = 0),
all data memory locations read as ‘0’. Further
programming is disabled for the data memory. Data
memory can still be programmed and read during
program execution.
The user ID locations and Configuration Words can be
programmed and read out regardless of the code
protection settings.
6.1
Code protection is enabled by programming the CP bit
in Configuration Word 1 register to ‘0’.
The only way to disable code protection is to use the
Bulk Erase Program Memory command.
6.2
Data memory protection is enabled by programming
the CPD bit in Configuration Word 1 register to ‘0’.
The only way to disable code protection is to use the
Bulk Erase Program Memory command.
 2010 Microchip Technology Inc.
Note:
PIC16F193X/LF193X/PIC16F194X/LF194X/
CODE PROTECTION
Program Memory
Data Memory
To ensure system security, if CPD bit = 0,
the
command will also erase data memory.
Bulk
Erase
Program
Memory
7.0
In the hex file there are two bytes per program word
stored in the Intel
LSB first, MSB second. Because there are two bytes
per word, the addresses in the hex file are 2x the
address
Configuration Word 1 is stored at 8007h on the
PIC16F193X/LF193X/PIC16F194X/LF194X/
PIC16LF190X. In the hex file this will be referenced as
1000Eh-1000Fh).
7.1
To allow portability of code, it is strongly recommended
that the programmer is able to read the Configuration
Words and user ID locations from the hex file. If the
Configuration Words information was not present in the
hex file, a simple warning message may be issued.
Similarly, while saving a hex file, Configuration Words
and user ID information should be included.
7.2
If a device ID is present in the hex file at 1000Ch-
1000Dh (8006h on the part), the programmer should
verify the device ID (excluding the revision) against the
value read from the part. On a mismatch condition the
programmer should generate a warning message.
7.3
The programmer should be able to read data memory
information from a hex file and write data memory
contents to a hex file.
The physical address range of the 256 data memory is
0000h-00FFh. However, these addresses are logically
mapped to address 1E000h-1E1FFh in the hex file.
This provides a way of differentiating between the data
and program memory locations in this range. The
format for data memory storage is one data byte per
address location, LSb aligned.
HEX FILE USAGE
Configuration Word
Device ID and Revision
Data EEPROM
in
program
®
INHX32 hex format. Data is stored
memory.
DS41397B-page 35
(Example:
The