PIC16F914-I/PT Microchip Technology, PIC16F914-I/PT Datasheet - Page 13

• Manufacturer Part Number: PIC16F914-I/PT
• Description: IC PIC MCU FLASH 4KX14 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F914-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 7KB (4K x 14)
• Package / Case: 44-TQFP, 44-VQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 35
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• 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: SSP/I2C/AUSART/SPI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 35
• 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: 8-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44PT3 - SOCKET TRAN ICE 44MQFP/TQFPAC164305 - MODULE SKT FOR PM3 44TQFP444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

3.1.6.1
The Load Configuration command is used to access
the Configuration Word (0x2007) and user ID (0x2000-
0x2003). This command sets the Program Counter
(PC) to address 0x2000 and loads the data latches with
one word of data.
After receiving a Load Configuration command, the
Configuration Word is accessed by performing an
Increment Address command seven times, to point the
PC to the Configuration Word. It can then be
programmed with the loaded data using a Begin
Programming command either internally or externally
timed.
FIGURE 3-4:
3.1.6.2
After receiving this command, the chip will load in a
14-bit “data word” when 16 cycles are applied, as
described previously. A timing diagram for the Load
Data For Program Memory command is shown in
Figure 3-5.
FIGURE 3-5:
© 2009 Microchip Technology Inc.
ICSPCLK
ICSPDAT
ICSPCLK
ICSPDAT
Load Configuration
Load Data For Program Memory
1
1
0
0
LOAD CONFIGURATION COMMAND
LOAD DATA FOR PROGRAM MEMORY COMMAND
2
2
0
0
1
T
SET
T
3
3
0
0
HLD
1
1
4
4
0
0
5
x
5
x
T
T
DLY
DLY
6
6
x
x
T
T
1
DLY
1
DLY
2
2
After the 6-bit command is input, the ICSPCLK pin is
cycled an additional 16 times for the Start bit, 14 bits of
data and a Stop bit. See Figure 3-4 for more details.
After the configuration memory is entered, the only way
to get back to the program memory is to exit the
Program/Verify mode by taking MCLR low (V
1
strt_bit
1
strt_bit
2
2
LSb
LSb
T
3
3
T
PIC16F91X/946
SET
SET
T
T
HLD
HLD
1
1
1
1
4
4
5
5
DS41244F-page 13
15
15
MSb
MSb
16
IL
16
stp_bit
stp_bit
).