PIC18LF4221-I/PT Microchip Technology, PIC18LF4221-I/PT Datasheet - Page 352

• 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
27.4
27.4.1
The timing parameter symbols have been created
using one of the following formats:
DS39689F-page 352
1. TppS2ppS
2. TppS
T
Lowercase letters (pp) and their meanings:
pp
Uppercase letters and their meanings:
S
I
T
CC
ST
2
CC
C only
:
F
cc
ck
cs
di
do
dt
io
mc
F
H
I
L
AA
BUF
HD
DAT
STA
ST
(I
AC (Timing) Characteristics
2
C specifications only)
TIMING PARAMETER SYMBOLOGY
Frequency
CCP1
CLKO
CS
SDI
SDO
Data in
I/O port
MCLR
Fall
High
Invalid (High-impedance)
Low
output access
Bus free
Hold
DATA input hold
Start condition
3. T
4. Ts
CC
T
osc
rd
rw
sc
ss
t0
t1
wr
P
R
V
Z
High
Low
SU
STO
:
ST
(I
(I
Time
OSC1
RD
RD or WR
SCK
SS
T0CKI
T13CKI
WR
Period
Rise
Valid
High-impedance
High
Low
Setup
Stop condition
2
2
C specifications only)
C specifications only)
© 2009 Microchip Technology Inc.