PIC16F1937-E/MV Microchip Technology, PIC16F1937-E/MV Datasheet - Page 208
![14KB Flash, 512B RAM, 256B EEPROM, LCD, 1.8-5.5V 40 UQFN 5x5x0.5mm TUBE](/photos/16/12/161286/qfn44_sml.jpg)
PIC16F1937-E/MV
Manufacturer Part Number
PIC16F1937-E/MV
Description
14KB Flash, 512B RAM, 256B EEPROM, LCD, 1.8-5.5V 40 UQFN 5x5x0.5mm TUBE
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheet
1.PIC16F1937-EMV.pdf
(472 pages)
Specifications of PIC16F1937-E/MV
Processor Series
PIC16F
Core
PIC
Program Memory Type
Flash
Program Memory Size
14 KB
Data Ram Size
256 B
Interface Type
MI2C, SPI, EUSART
Number Of Timers
5
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Package / Case
UQFN-40
Development Tools By Supplier
MPLAB IDE Software
Minimum Operating Temperature
- 40 C
Core Processor
PIC
Core Size
8-Bit
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
36
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 14x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Lead Free Status / Rohs Status
Details
- Current page: 208 of 472
- Download datasheet (5Mb)
PIC16(L)F1934/6/7
22.1
The clock input to the Timer2/4/6 modules is the
system instruction clock (F
TMRx increments from 00h on each clock edge.
A 4-bit counter/prescaler on the clock input allows direct
input, divide-by-4 and divide-by-16 prescale options.
These options are selected by the prescaler control bits,
TxCKPS<1:0> of the TxCON register. The value of
TMRx is compared to that of the Period register, PRx, on
each clock cycle. When the two values match, the
comparator generates a match signal as the timer
output. This signal also resets the value of TMRx to 00h
on
counter/postscaler (see
Interrupt”).
The TMRx and PRx registers are both directly readable
and writable. The TMRx register is cleared on any
device Reset, whereas the PRx register initializes to
FFh. Both the prescaler and postscaler counters are
cleared on the following events:
• a write to the TMRx register
• a write to the TxCON register
• Power-on Reset (POR)
• Brown-out Reset (BOR)
• MCLR Reset
• Watchdog Timer (WDT) Reset
• Stack Overflow Reset
• Stack Underflow Reset
• RESET Instruction
22.2
Timer2/4/6 can also generate an optional device
interrupt. The Timer2/4/6 output signal (TMRx-to-PRx
match)
counter/postscaler. This counter generates the TMRx
match interrupt flag which is latched in TMRxIF of the
PIRx register. The interrupt is enabled by setting the
TMRx Match Interrupt Enable bit, TMRxIE, of the PIEx
register.
A range of 16 postscale options (from 1:1 through 1:16
inclusive) can be selected with the postscaler control
bits, TxOUTPS<3:0>, of the TxCON register.
DS41364E-page 208
Note:
the
Timer2/4/6 Operation
Timer2/4/6 Interrupt
provides
next
TMRx is not cleared when TxCON is
written.
cycle
the
OSC
and
Section 22.2 “Timer2/4/6
input
/4).
drives
for
the
the
output
4-bit
22.3
The unscaled output of TMRx is available primarily to
the CCP modules, where it is used as a time base for
operations in PWM mode.
Timer2 can be optionally used as the shift clock source
for the MSSP module operating in SPI mode.
Additional information is provided in
“Master Synchronous Serial Port Module”
22.4
The Timer2/4/6 timers cannot be operated while the
processor is in Sleep mode. The contents of the TMRx
and PRx registers will remain unchanged while the
processor is in Sleep mode.
Timer2/4/6 Output
Timer2/4/6 Operation During Sleep
2008-2011 Microchip Technology Inc.
Section 24.0
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