PIC18LF4221-I/PT Microchip Technology, PIC18LF4221-I/PT Datasheet - Page 163

• 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

REGISTER 17-3:
© 2009 Microchip Technology Inc.
bit 7
bit 6-4
bit 3-2
bit 1-0
ECCP1AS: ENHANCED CAPTURE/COMPARE/PWM AUTO-SHUTDOWN
CONTROL REGISTER
PIC18F2221/2321/4221/4321 FAMILY
bit 7
ECCPASE: ECCP Auto-Shutdown Event Status bit
1 = A shutdown event has occurred; ECCP outputs are in shutdown state
0 = ECCP outputs are operating
ECCPAS<2:0>: ECCP Auto-Shutdown Source Select bits
111 = FLT0 or Comparator 1 or Comparator 2
110 = FLT0 or Comparator 2
101 = FLT0 or Comparator 1
100 = FLT0
011 = Either Comparator 1 or 2
010 = Comparator 2 output
001 = Comparator 1 output
000 = Auto-shutdown is disabled
PSSAC<1:0>: Pins A and C Shutdown State Control bits
1x = Pins A and C are tri-state (40/44-pin devices);
01 = Drive Pins A and C to ‘1’
00 = Drive Pins A and C to ‘0’
PSSBD<1:0>: Pins B and D Shutdown State Control bits
1x = Pins B and D tri-state
01 = Drive Pins B and D to ‘1’
00 = Drive Pins B and D to ‘0’
ECCPASE ECCPAS2 ECCPAS1 ECCPAS0 PSSAC1 PSSAC0 PSSBD1
Legend:
R = Readable bit
-n = Value at POR
R/W-0
Note 1: Unimplemented on 28-pin devices; bits read as ‘0’.
PWM output is tri-state (28-pin devices)
R/W-0
R/W-0
W = Writable bit
‘1’ = Bit is set
R/W-0
R/W-0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
(1)
R/W-0
x = Bit is unknown
R/W-0
DS39689F-page 163
(1)
PSSBD0
R/W-0
bit 0
(1)