PIC18LF4221-I/PT Microchip Technology, PIC18LF4221-I/PT Datasheet - Page 360

• Manufacturer Part Number: PIC18LF4221-I/PT
• Description: 4 KB Flash, 512 RAM 44 TQFP 10x10x1mm TRAY
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF4221-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F2221/2321/4221/4321 FAMILY
FIGURE 27-12:
TABLE 27-13: PARALLEL SLAVE PORT REQUIREMENTS (PIC18F4221/4321)
DS39689F-page 360
62
63
64
65
66
Param.
No.
Note:
RD<7:0>
RE1/WR
RE0/RD
RE2/CS
TdtV2wrH
TwrH2dtI
TrdL2dtV
TrdH2dtI
TibfINH
Symbol
Refer to Figure 27-5 for load conditions.
PARALLEL SLAVE PORT TIMING (PIC18F4221/4321)
Data In Valid before WR ↑ or CS ↑ (setup time)
WR ↑ or CS ↑ to Data–In
Invalid (hold time)
RD ↓ and CS ↓ to Data–Out Valid
RD ↑ or CS ↓ to Data–Out Invalid
Inhibit of the IBF Flag bit being Cleared from
WR ↑ or CS ↑
64
Characteristic
65
PIC18FXXXX
PIC18LFXXXX
Min
20
20
35
10
—
—
3 T
62
Max
80
30
—
—
—
CY
© 2009 Microchip Technology Inc.
Units
63
ns
ns
ns
ns
ns
V
DD
= 2.0V
Conditions