PIC16F873A-I/SS Microchip Technology, PIC16F873A-I/SS Datasheet - Page 656

• 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

PICmicro MID-RANGE MCU FAMILY
A.2
DS31034A-page 34-4
Addressing I
There are two address formats. The simplest is the 7-bit address format with a R/W bit
(Figure
address format, two bytes must be transmitted. The first five bits specify this to be a 10-bit
address format. The 1st transmitted byte has 5-bits which specify a 10-bit address, the two MSbs
of the address, and the R/W bit. The second byte is the remaining 8-bits of the address.
Figure A-2:
Figure A-3:
2
C Devices
A-2). The more complex is the 10-bit address with a R/W bit
S
R/W
ACK
7-bit Address Format
I
2
S 1 1 1 1 0 A9 A8 R/W ACK A7 A6 A5 A4 A3 A2 A1 A0
C 10-bit Address Format
ACK
S
R/W
- Start Condition
- Read/Write Pulse
- Acknowledge
Start Condition
Read/Write pulse
Acknowledge
S
MSb
slave address
sent by slave
= 0 for write
LSb
R/W
1997 Microchip Technology Inc.
Sent by
Slave
ACK
(Figure
ACK
A-3). For 10-bit