PIC18F65K22-I/MRRSL Microchip Technology, PIC18F65K22-I/MRRSL Datasheet - Page 125

• Manufacturer Part Number: PIC18F65K22-I/MRRSL
• Description: MCU PIC 32K FLASH MEM XLP 64QFN
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F65K22-I/MRRSL

• Core Size: 8-Bit
• Program Memory Size: 32KB (16K x 16)
• Core Processor: PIC
• Speed: 64MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 16x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VFQFN, Exposed Pad
• Controller Family/series: PIC18
• No. Of I/o's: 53
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2KB
• Cpu Speed: 64MHz
• No. Of Timers: 8
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: I2C, SPI
• Maximum Clock Frequency: 64 MHz
• Number Of Programmable I/os: 53
• Number Of Timers: 8
• 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
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 16 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.6.3
Figure 8-3 shows an example of 16-Bit Byte Select
mode. This mode allows table write operations to
word-wide external memories with byte selection
capability. This generally includes both word-wide
Flash and SRAM devices.
During a TBLWT cycle, the TABLAT data is presented
on the upper and lower byte of the AD<15:0> bus. The
WRH signal is strobed for each write cycle; the WRL
pin is not used. The BA0 or UB/LB signals are used to
select the byte to be written, based on the Least
Significant bit of the TBLPTR register.
FIGURE 8-3:
 2010 Microchip Technology Inc.
Note 1:
PIC18F87K22
2:
3:
16-BIT BYTE SELECT MODE
A<19:16>
AD<15:8>
This signal only applies to table writes. See Section 7.1 “Table Reads and Table Writes”.
Upper order address lines are used only for 20-bit address width.
Demultiplexing is only required when multiple memory devices are accessed.
AD<7:0>
WRH
WRL
ALE
BA0
OE
UB
I/O
LB
(2)
16-BIT BYTE SELECT MODE EXAMPLE
373
373
Preliminary
A<20:1>
A<20:1>
PIC18F87K22 FAMILY
138
Flash and SRAM devices use different control signal
combinations to implement Byte Select mode. JEDEC
standard Flash memories require that a controller I/O
port pin be connected to the memory’s BYTE/WORD
pin to provide the select signal. They also use the BA0
signal from the controller as a byte address. JEDEC
standard static RAM memories, on the other hand, use
the UB or LB signals to select the byte.
(3)
A<x:1>
CE
A<x:1>
UB
A0
BYTE/WORD
CE
LB
OE WR
FLASH Memory
SRAM Memory
Address Bus
Data Bus
Control Lines
JEDEC Word
JEDEC Word
(1)
OE WR
D<15:0>
D<15:0>
DS39960B-page 125
(1)
D<15:0>
D<15:0>