PIC16F874-04I/PQ Microchip Technology, PIC16F874-04I/PQ Datasheet - Page 459

• Manufacturer Part Number: PIC16F874-04I/PQ
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,QFP,44PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F874-04I/PQ

• Rohs Compliant: YES
• 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 ~ 85°C
• Package / Case: 44-MQFP, 44-PQFP
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 192 B
• Interface Type: MSSP, PSP, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 3 bit
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163022, DV164120
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

M
Section 25. LCD
HIGHLIGHTS
This section of the manual contains the following major topics:
25.1 Introduction ..................................................................................................................25-2
25.2 Control Register ...........................................................................................................25-3
25.3 LCD Timing ..................................................................................................................25-6
25.4 LCD Interrupts............................................................................................................25-12
25.5 Pixel Control...............................................................................................................25-13
25.6 Voltage Generation ....................................................................................................25-15
25.7 Operation During Sleep .............................................................................................25-16
25.8 Effects of a Reset.......................................................................................................25-17
25.9 Configuring the LCD Module......................................................................................25-17
25.10 Discrimination Ratio ...................................................................................................25-18
25.11 LCD Voltage Generation ............................................................................................25-20
25.12 Contrast .....................................................................................................................25-22
25.13 LCD Glass..................................................................................................................25-22
25.14 Initialization ................................................................................................................25-23
25.15 Design Tips ................................................................................................................25-24
25.16 Related Application Notes..........................................................................................25-25
25.17 Revision History .........................................................................................................25-26
25
1997 Microchip Technology Inc.
DS31025A page 25-1