PIC18F14K22-I/ML Microchip Technology, PIC18F14K22-I/ML Datasheet - Page 25

• Manufacturer Part Number: PIC18F14K22-I/ML
• Description: IC PIC MCU FLASH 512KX16 20-QFN
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F14K22-I/ML

• Core Size: 8-Bit
• Program Memory Size: 16KB (8K x 16)
• Core Processor: PIC
• Speed: 64MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Controller Family/series: PIC18
• No. Of I/o's: 18
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 512Byte
• Cpu Speed: 64MHz
• No. Of Timers: 4
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: I2C, MSSP, SPI, USART
• Maximum Clock Frequency: 64 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 4
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• Package: 20QFN EP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 64 MHz
• A/d Bit Size: 10 bit
• A/d Channels Available: 12
• Height: 0.88 mm
• Length: 4 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V, 2.7 V
• Width: 4 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

FIGURE 5-4:
FIGURE 5-5:
5.5
A data EEPROM address may be read via a sequence
of core instructions (4-bit command, ‘0000’) and then
output on PGD via the 4-bit command, ‘0010’ (TABLAT
register). The result may then be immediately
compared to the appropriate data in the programmer’s
memory for verification. Refer to Section 5.4 “Read
Data EEPROM Memory” for implementation details of
reading data EEPROM.
© 2009 Microchip Technology Inc.
PGC
PGD
Note 1:
PGC
PGD
Verify Data EEPROM
1
0
2
1
Magnification of the high-impedance delay between PGC and PGD is shown in Figure 5-5.
MSb
3
0
4
0
SHIFT OUT DATA HOLDING REGISTER TIMING DIAGRAM (0010)
HIGH-IMPEDANCE DELAY
P5
PGD = Input
1
1
n
P19
2
P3
3
2
4
n
5
Advance Information
6
7
8
PIC18F1XK22/LF1XK22
P6
LSb
9
P14
5.6
The term “Blank Check” means to verify that the device
has no programmed memory cells. All memories must
be verified: program Flash, data EEPROM, ID locations
and Configuration bits. The device ID registers
(3FFFFEh:3FFFFFh) should be ignored.
A “blank” or “erased” memory cell will read as a ‘1’.
Therefore, Blank Checking a device merely means to
verify that all bytes read as FFh except the
Configuration bits. Unused (reserved) Configuration
bits will read ‘0’ (programmed). Refer to Table 6-1 for
blank configuration expect data for the various
PIC18F1XK22/LF1XK22 devices.
Given that Blank Checking is merely code and data
EEPROM verification with FFh expect data, refer to
Section 5.4 “Read Data EEPROM Memory” and
Section 5.2 “Verify Program Flash and ID Locations”
for implementation details.
FIGURE 5-6:
10 11
1
2
PGD = Output
12
Shift Data Out
Blank Check
3
Blank Check Device
13
4
14
device
Abort
blank?
5
Start
Is
15 16
No
6
BLANK CHECK FLOW
MSb
P5A
(Note 1)
(Note 1)
Fetch Next 4-bit Command
Yes
1
n
PGD = Input
2
n
DS41357B-page 25
3
Continue
n
4
n