PIC16F873A-I/SS Microchip Technology, PIC16F873A-I/SS Datasheet - Page 285

IC MCU FLASH 4KX14 EE 28SSOP

PIC16F873A-I/SS

Manufacturer Part Number
PIC16F873A-I/SS
Description
IC MCU FLASH 4KX14 EE 28SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr

Specifications of PIC16F873A-I/SS

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
22
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 5x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SSOP
Controller Family/series
PIC16F
No. Of I/o's
22
Eeprom Memory Size
128Byte
Ram Memory Size
192Byte
Cpu Speed
20MHz
No. Of Timers
3
Core
PIC
Processor Series
PIC16F
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
Data Ram Size
192 B
Data Rom Size
128 B
On-chip Adc
Yes
Number Of Programmable I/os
22
Number Of Timers
3
Operating Supply Voltage
2 V to 5.5 V
Mounting Style
SMD/SMT
A/d Bit Size
10 bit
A/d Channels Available
5
Height
1.75 mm
Interface Type
I2C, SPI, USART
Length
10.2 mm
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4 V
Width
5.3 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164307 - MODULE SKT FOR PM3 28SSOPAC164020 - MODULE SKT PROMATEII 44TQFPXLT28SS-1 - SOCKET TRANSITION ICE 28SSOP
Lead Free Status / Rohs Status
 Details
Other names
PIC16F873AI/SS

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC16F873A-I/SS
Manufacturer:
Microchip Technology
Quantity:
1 812
Part Number:
PIC16F873A-I/SS
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
17.3
17.3.1
1997 Microchip Technology Inc.
Operation
SPI Mode
The SPI mode allows 8-bits of data to be synchronously transmitted and received simulta-
neously. All four modes of SPI are supported. To accomplish communication, typically three pins
are used:
• Serial Data Out (SDO)
• Serial Data In (SDI)
• Serial Clock (SCK)
Additionally a fourth pin may be used when in a slave mode of operation:
• Slave Select (SS)
When initializing the SPI, several options need to be specified. This is done by programming the
appropriate control bits in the SSPCON1 register (SSPCON1<5:0>) and SSPSTAT<7:6>. These
control bits allow the following to be specified:
• Master Mode (SCK is the clock output)
• Slave Mode (SCK is the clock input)
• Clock Polarity (Idle state of SCK)
• Data input sample phase (middle or end of data output time)
• Clock edge (output data on rising/falling edge of SCK)
• Clock Rate (Master mode only)
• Slave Select Mode (Slave mode only)
Figure 17-4
Figure 17-4:
shows the block diagram of the SSP module, when in SPI mode.
SSP Block Diagram (SPI Mode)
SDO
SCK
SDI
SS
Preliminary
Read
SS Control
Select
SMP:CKE
Edge
Enable
bit0
Select
Edge
SSPBUF reg
TRIS bit
Data to TX/RX in SSPSR
2
SSPM3:SSPM0
SSPSR reg
Clock Select
Section 17. MSSP
4
2
Write
Prescaler
4, 16, 64
clock
shift
TMR2 output
data bus
Internal
2
T
OSC
DS31017A-page 17-9
17

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