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PIC16LF877-04I/PT
PIC16LF877-04I/PT | |
|---|---|
| Manufacturer Part Number | PIC16LF877-04I/PT |
| Description | IC PIC MCU FLASH 8KX14 44TQFP |
| Manufacturer | Microchip Technology |
| Series | PIC® 16F |
| PIC16LF877-04I/PT datasheets |
|
Availability: In stock
International delivery:
Warranty: 60 days
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- We provide standard 60-days warranty for all parts. If warranty differs we always mention it beforehand. In case of return we cover shipping costs.
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Specifications of PIC16LF877-04I/PT | |||
|---|---|---|---|
| Core Size | 8-Bit | Program Memory Size | 14KB (8K x 14) |
| Core Processor | PIC | Speed | 4MHz |
| Connectivity | I²C, SPI, UART/USART | Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number Of I /o | 33 | Program Memory Type | FLASH |
| Eeprom Size | 256 x 8 | Ram Size | 368 x 8 |
| Voltage - Supply (vcc/vdd) | 2 V ~ 5.5 V | Data Converters | A/D 8x10b |
| Oscillator Type | External | Operating Temperature | -40°C ~ 85°C |
| Package / Case | 44-TQFP, 44-VQFP | Controller Family/series | PIC16LF |
| No. Of I/o's | 33 | Eeprom Memory Size | 256Byte |
| Ram Memory Size | 368Byte | Cpu Speed | 4MHz |
| No. Of Timers | 3 | Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
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PrevNext
7.0
TIMER2 MODULE
Timer2 is an 8-bit timer with a prescaler and a
postscaler. It can be used as the PWM time-base for
the PWM mode of the CCP module(s). The TMR2 reg-
ister is readable and writable, and is cleared on any
device RESET.
The input clock (F
/4) has a prescale option of 1:1,
OSC
1:4,
or
1:16,
selected
by
T2CKPS1:T2CKPS0 (T2CON<1:0>).
The Timer2 module has an 8-bit period register, PR2.
Timer2 increments from 00h until it matches PR2 and
then resets to 00h on the next increment cycle. PR2 is
a readable and writable register. The PR2 register is
initialized to FFh upon RESET.
The match output of TMR2 goes through a 4-bit
postscaler (which gives a 1:1 to 1:16 scaling inclusive)
to generate a TMR2 interrupt (latched in flag bit
TMR2IF, (PIR1<1>)).
Timer2 can be shut-off by clearing control bit TMR2ON
(T2CON<2>), to minimize power consumption.
REGISTER 7-1:
T2CON: TIMER2 CONTROL REGISTER (ADDRESS 12h)
U-0
R/W-0
—
TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON T2CKPS1 T2CKPS0
bit 7
bit 7
Unimplemented: Read as '0'
bit 6-3
TOUTPS3:TOUTPS0: Timer2 Output Postscale Select bits
0000 = 1:1 Postscale
0001 = 1:2 Postscale
0010 = 1:3 Postscale
•
•
•
1111 = 1:16 Postscale
bit 2
TMR2ON: Timer2 On bit
1 = Timer2 is on
0 = Timer2 is off
bit 1-0
T2CKPS1:T2CKPS0: Timer2 Clock Prescale Select bits
00 = Prescaler is 1
01 = Prescaler is 4
1x = Prescaler is 16
Legend:
R = Readable bit
- n = Value at POR
2001 Microchip Technology Inc.
Register 7-1 shows the Timer2 control register.
Additional information on timer modules is available in
the PICmicro™ Mid-Range MCU Family Reference
Manual (DS33023).
FIGURE 7-1:
Sets Flag
TMR2
bit TMR2IF
control
bits
Output
Postscaler
1:1
to
1:16
4
T2OUTPS3:
T2OUTPS0
Note 1: TMR2 register output can be software selected by the
SSP module as a baud clock.
R/W-0
R/W-0
R/W-0
W = Writable bit
U = Unimplemented bit, read as ‘0’
’1’ = Bit is set
’0’ = Bit is cleared
PIC16F87X
TIMER2 BLOCK DIAGRAM
(1)
RESET
Prescaler
TMR2 Reg
F
/4
OSC
1:1, 1:4, 1:16
2
Comparator
EQ
T2CKPS1:
T2CKPS0
PR2 Reg
R/W-0
R/W-0
R/W-0
bit 0
x = Bit is unknown
DS30292C-page 55
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