PIC16F874-04E/PT Microchip Technology, PIC16F874-04E/PT Datasheet - Page 476
PIC16F874-04E/PT
Manufacturer Part Number
PIC16F874-04E/PT
Description
IC MCU FLASH 4KX14 EE 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F873-04SO.pdf
(218 pages)
4.PIC16F873-04SO.pdf
(5 pages)
5.PIC16F873-04SO.pdf
(5 pages)
Specifications of PIC16F874-04E/PT
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
7KB (4K x 14)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
192 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
PIC16F87404E/PT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F874-04E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F873-04SO PDF datasheet #3
- PIC16F873-04SO PDF datasheet #4
- PIC16F873-04SO PDF datasheet #5
- Current page: 476 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
25.10
DS31025A-page 25-18
Discrimination Ratio
Discrimination ratio is a way to calculate the contrast levels that a panel can achieve. The first
example is a static waveform from Figure 25-3. The voltages V
of 1 and 0. The next step is to construct an equation for one frame to help visualize the DC and
RMS voltages present on an individual pixel that is ON and OFF. The rest of the following shows
the calculation of the DC, RMS, and Discrimination Ratio.
Example 25-3:
See
Figure 25-3
D = V
Discrimination Ratio Calculation for Static MUX
V
COMx - SEGx [ON]
COMx - SEGx [OFF]
RMS
RMS
V
V
for Static waveform.
RMS
RMS
[ON]
[OFF]
[ON] =
[OFF] =
= 1 V
0 V
V
V
= 1 - 1,
= 0 + 0,
(1)
(0)
=
2
2
+ (-1)
+ (0)
2
2
V
V
DC
DC
2
2
= 0
= 0
=
=
1
and V
1 V
0 V
1997 Microchip Technology Inc.
0
will be assigned values
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