PIC16F1947-E/MR Microchip Technology, PIC16F1947-E/MR Datasheet - Page 345
![28KB Flash, 1KB RAM, 256B EEPROM, LCD, 1.8-5.5V 64 QFN 9x9x0.9mm TUBE](/photos/16/3/160368/qfn64_sml.jpg)
PIC16F1947-E/MR
Manufacturer Part Number
PIC16F1947-E/MR
Description
28KB Flash, 1KB RAM, 256B EEPROM, LCD, 1.8-5.5V 64 QFN 9x9x0.9mm TUBE
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheets
1.PIC16F722-ISS.pdf
(8 pages)
2.PIC16LF1933-ISS.pdf
(46 pages)
3.PIC16LF1946-IPT.pdf
(448 pages)
4.PIC16LF1946-IPT.pdf
(6 pages)
5.PIC16F1946-IPT.pdf
(8 pages)
Specifications of PIC16F1947-E/MR
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
54
Program Memory Size
28KB (16K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 17x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
MI2C, SPI, EUSART
Maximum Clock Frequency
32 MHz
Number Of Programmable I/os
54
Number Of Timers
5
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 17 Channel
On-chip Dac
5 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16F722-ISS PDF datasheet
- PIC16LF1933-ISS PDF datasheet #2
- PIC16LF1946-IPT PDF datasheet #3
- PIC16LF1946-IPT PDF datasheet #4
- PIC16F1946-IPT PDF datasheet #5
- Current page: 345 of 448
- Download datasheet (4Mb)
27.4.3
As an LCD segment is electrically only a capacitor, cur-
rent is drawn only during the interval where the voltage
is switching. To minimize total device current, the LCD
internal reference ladder can be operated in a different
power mode for the transition portion of the duration.
This
(Register
FIGURE 27-4:
2010 Microchip Technology Inc.
Segment Clock
Segment Data
Ladder Power
32 kHz Clock
LRLAT<2:0>
Power Mode
COM0-SEG0
is
Control
27-7).
controlled
AUTOMATIC POWER MODE
SWITCHING
COM0
SEG0
LCD INTERNAL REFERENCE LADDER POWER MODE SWITCHING DIAGRAM –
TYPE A
‘H00
by
Power Mode A
LRLAT<2:0>
the
‘H01
LCDRL
‘H02
‘H03
Register
Preliminary
Single Segment Time
‘H04
‘H05
The LCDRL register allows switching between two
power modes, designated ‘A’ and ‘B’. ‘A’ Power mode
is active for a programmable time, beginning at the
time when the LCD segments transition. ‘B’ Power
mode is the remaining time before the segments or
commons change again. The LRLAT<2:0> bits select
how long, if any, that the ‘A’ Power mode is active.
Refer to
To implement this, the 5-bit prescaler used to divide
the 32 kHz clock down to the LCD controller’s 1 kHz
base rate is used to select the power mode.
‘H3
Power Mode B
‘H06
PIC16F/LF1946/47
Figure
‘H07
27-4.
‘H0E
‘H0F
DS41414B-page 345
-V
V
V
V
V
V
V
‘H00
1
0
1
0
1
0
1
Mode A
‘H01
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