PIC16F874-20/L Microchip Technology, PIC16F874-20/L Datasheet - Page 78

• Manufacturer Part Number: PIC16F874-20/L
• Description: IC MCU FLASH 4KX14 EE 44PLCC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F874-20/L

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• 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: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Controller Family/series: PIC16F
• No. Of I/o's: 33
• Eeprom Memory Size: 128Byte
• Ram Memory Size: 192Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• 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
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 70 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: 0 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164309 - MODULE SKT FOR PM3 44PLCC444-1001 - DEMO BOARD FOR PICMICRO MCUDVA16XL441 - ADAPTER DEVICE ICE 44PLCC309-1040 - ADAPTER 44-PLCC ZIF TO 40-DIP309-1039 - ADAPTER 44-PLCC TO 40-DIPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
• Lead Free Status / Rohs Status: Details

PICmicro MID-RANGE MCU FAMILY
Table 4-1:
DS31004A-page 4-10
I
2
REFA
REFB
RF0
RF1
RF2
RF3
RF4
RF5
RF6
RF7
RG0
RG1
RG2
RG3
RG4
RG5
RG6
RG7
RX
SCL
SCLA
SCLB
SDA
SDAA
SDAB
SCK
SDI
SDO
SS
SEG00 to
SEG31
SUM
T0CKI
T1CKI
T1OSO
T1OSI
TX
Legend: TTL = TTL-compatible input
C is a trademark of Philips Corporation.
Pin Name
ST = Schmitt Trigger input with CMOS levels
SM = SMBus compatible input. An external resistor is required if this pin is used as an output
NPU = N-channel pull-up
No-P diode = No P-diode to V
I = input
P = Power
I/O Descriptions (Cont.’d)
Type
Pin
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/L
O
O
O
O
O
O
I
I
I
I
I
I
Buffer
CMOS
CMOS
CMOS
CMOS
Type
AN
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
—
—
DD
Description
Programmable reference A output.
Programmable reference B output.
PORTF is a digital input or LCD Segment Driver Port
PORTG is a digital input or LCD Segment Driver Port
USART Asynchronous Receive
Synchronous serial clock input/output for I
Synchronous serial clock for I
Synchronous serial clock for I
I
Synchronous serial data I/O for I
Synchronous serial data I/O for I
Synchronous serial clock input/output for SPI mode.
SPI Data In
SPI Data Out (SPI mode)
SPI Slave Select input
LCD Segment Driver00 through Driver31.
AN1 summing junction output. This pin can be connected to an exter-
nal capacitor for averaging small duration pulses.
Timer0 external clock input
Timer1 external clock input
Timer1 oscillator output
Timer1 oscillator input
USART Asynchronous Transmit (See related RX)
2
C
™
Data I/O
CMOS = CMOS compatible input or output
PU = Weak internal pull-up
AN = Analog input or output
O = output
L = LCD Driver
2
2
C interface.
C interface.
2
2
C interface
C interface
1997 Microchip Technology Inc.
2
C mode.