PIC16LC924-04I/L Microchip Technology, PIC16LC924-04I/L Datasheet - Page 39

• Manufacturer Part Number: PIC16LC924-04I/L
• Description: IC MCU OTP 4KX14 LCD DVR 68PLCC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16LC924-04I/L

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: I²C, SPI
• Peripherals: LCD, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: OTP
• Ram Size: 176 x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 6 V
• Data Converters: A/D 5x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 68-PLCC
• Core: PIC
• Processor Series: PIC16LC
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Data Ram Size: 176 B
• Data Rom Size: 176 B
• On-chip Adc: 8 bit, 5 Channel
• Number Of Programmable I/os: 25
• Number Of Timers: 3
• Operating Supply Voltage: 2.5 V to 6 V
• Mounting Style: SMD/SMT
• Height: 4.06 mm
• Interface Type: I2C, SPI
• Length: 24.33 mm
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 6 V
• Supply Voltage (min): 2.5 V
• Width: 24.33 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

5.6
PORTF is an digital input only port. Each pin is multi-
plexed with an LCD segment driver. These pins have
Schmitt Trigger input buffers.
EXAMPLE 5-6:
TABLE 5-11: PORTF FUNCTIONS
TABLE 5-12: SUMMARY OF REGISTERS ASSOCIATED WITH PORTF
Name
RF0/SEG12
RF1/SEG13
RF2/SEG14
RF3/SEG15
RF4/SEG16
RF5/SEG17
RF6/SEG18
RF7/SEG19
Legend: ST = Schmitt Trigger input
Address Name
107h
187h
10Dh
Legend: Shaded cells are not used by PORTF.
1997 Microchip Technology Inc.
BCF STATUS,RP0
BSF STATUS,RP1
BCF LCDSE,SE16
BCF LCDSE,SE12
Note 1: On a Power-on Reset these pins are con-
Note 2: To configure the pins as a digital port, the
PORTF and TRISF Register
PORTF
TRISF
LCDSE
figured as LCD segment drivers.
corresponding bits in the LCDSE register
must be cleared. Any bit set in the LCDSE
register overrides any bit settings in the
corresponding TRIS register.
INITIALIZING PORTF
PORTF Data Direction Control Register
Bit#
bit0
bit1
bit2
bit3
bit4
bit5
bit6
bit7
SE29
Bit 7
RF7
;Select Bank2
;
;Make all PORTF
;digital inputs
Buffer Type
SE27
Bit 6
RF6
ST
ST
ST
ST
ST
ST
ST
ST
SE20
Bit 5
RF5
Digital input or Segment Driver12
Digital input or Segment Driver13
Digital input or Segment Driver14
Digital input or Segment Driver15
Digital input or Segment Driver16
Digital input or Segment Driver17
Digital input or Segment Driver18
Digital input or Segment Driver19
SE16
Bit 4
RF4
SE12
Bit 3
RF3
FIGURE 5-9: PORTF BLOCK DIAGRAM
Data Bus
RD PORT
RD TRIS
Bit 2
RF2
SE9
LCD Common
Output Enable
LCD Segment
Output Enable
LCD
Common Data
LCDSE<n>
LCD
Segment Data
Bit 1
RF1
SE5
Function
Bit 0
RF0
SE0
V
DD
PIC16C9XX
Q
EN
0000 0000
1111 1111
1111 1111
Power-on
Value on
EN
D
Reset
DS30444E - page 39
Digital Input/
LCD Output pin
Schmitt
Trigger
input
buffer
other resets
Value on all
0000 0000
1111 1111
1111 1111