PIC16F876A-E/SS Microchip Technology, PIC16F876A-E/SS Datasheet - Page 75

• Manufacturer Part Number: PIC16F876A-E/SS
• Description: 28 PIN, 14KB ENH FLASH, 368 RAM, 22 I/O,
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F876A-E/SS

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SSOP
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 368 B
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 22
• Number Of Timers: 1 x 16 bit
• Operating Supply Voltage: 2 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, PG164120, ICE2000, DM163022, DV164120
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.4
Table 4-1:
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN8
AN9
AN10
AN11
AN12
AN13
AN14
AN15
A
A
C1
C2
CCP1
CCP2
CDAC
CK
CLKIN
CLKOUT
CMPA
CMPB
Legend: TTL = TTL-compatible input
1997 Microchip Technology Inc.
VDD
VSS
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
I/O Descriptions
Type
Pin
Table 4-1
functions may exist on one port pin. When multiplexing occurs, the peripheral module’s functional
requirements may force an override of the data direction (TRIS bit) of the port pin (such as in the
A/D and LCD modules).
I/O
I/O
I/O
O
O
O
O
P
P
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
gives a brief description of the functions that may be multiplexed to a port pin. Multiple
ST/CMOS
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Buffer
Type
ST
ST
ST
—
—
—
P
P
DD
Description
Analog Input Channels
Analog Power
Analog Ground
LCD Voltage Generation
LCD Voltage Generation
Capture1 input/Compare1 output/PWM1 output
Capture2 input/Compare2 output/PWM2 output.
A/D ramp current source output. Normally connected to external
capacitor to generate a linear voltage ramp.
USART Synchronous Clock, always associated with TX pin function
(See related TX, RX, DT)
External clock source input. Always associated with pin function
OSC1. (See related OSC1/CLKIN, OSC2/CLKOUT pins)
Oscillator crystal output. Connects to crystal or resonator in crystal
oscillator mode. In RC mode, OSC2 pin outputs CLKOUT which has
1/4 the frequency of OSC1, and denotes the instruction cycle rate.
Always associated with OSC2 pin function. (See related OSC2,
OSC1)
Comparator A output
Comparator B output
Section 4. Architecture
CMOS = CMOS compatible input or output
PU = Weak internal pull-up
AN = Analog input or output
O = output
L = LCD Driver
DS31004A-page 4-7
4