PIC16F84A-20I/SS Microchip Technology, PIC16F84A-20I/SS Datasheet - Page 325
![IC MCU FLASH 1KX14 EE 20SSOP](/photos/6/58/65895/150-20-ssop_sml.jpg)
PIC16F84A-20I/SS
Manufacturer Part Number
PIC16F84A-20I/SS
Description
IC MCU FLASH 1KX14 EE 20SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F688T-ISL.pdf
(688 pages)
2.PIC16F84A-04P.pdf
(88 pages)
3.PIC16F84A-04P.pdf
(6 pages)
Specifications of PIC16F84A-20I/SS
Core Size
8-Bit
Program Memory Size
1.75KB (1K x 14)
Core Processor
PIC
Speed
20MHz
Peripherals
POR, WDT
Number Of I /o
13
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
68 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SSOP
Controller Family/series
PIC16F
No. Of I/o's
13
Eeprom Memory Size
64Byte
Ram Memory Size
68Byte
Cpu Speed
20MHz
No. Of Timers
1
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
68 B
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
13
Number Of Timers
8
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
ICE2000
Minimum Operating Temperature
- 40 C
Data Rom Size
64 B
Height
1.75 mm
Length
7.2 mm
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
XLT20SS1-1 - SOCKET TRANSITION 20DIP 20SSOPI3-DB16F84A - BOARD DAUGHTER ICEPIC3AC164307 - MODULE SKT FOR PM3 28SSOPAC164018 - MODULE SKT PROMATEII 20SSOP
Data Converters
-
Connectivity
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F84A-20I/SS
Manufacturer:
MICROCHIP
Quantity:
2 560
Part Number:
PIC16F84A-20I/SS
Manufacturer:
MIC
Quantity:
20 000
- Current page: 325 of 688
- Download datasheet (3Mb)
17.4.18
1997 Microchip Technology Inc.
SDA
SCL
BCLIF
Multi -Master Communication, Bus Collision, and Bus Arbitration
Multi-Master mode support is achieved by bus arbitration. When the master outputs address/data
bits onto the SDA pin, arbitration takes place when the master outputs a '1' on SDA by letting
SDA float high and another master asserts a '0'. When the SCL pin floats high, data should be
stable. If the expected data on SDA is a '1' and the data sampled on the SDA pin = '0', then a bus
collision has taken place. The master will set the Bus Collision Interrupt Flag, BCLIF and reset
the I
If a transmit was in progress when the bus collision occurred, the transmission is halted, the BF
flag is cleared, the SDA and SCL lines are de-asserted, and the SSPBUF can be written to. When
the user services the bus collision interrupt service routine, and if the I
can resume communication by asserting a START condition.
If a START, Repeated Start, STOP, or Acknowledge condition was in progress when the bus col-
lision occurred, the condition is aborted, the SDA and SCL lines are de-asserted, and the respec-
tive control bits in the SSPCON2 register are cleared. When the user services the bus collision
interrupt service routine, and if the I
ing a START condition.
The Master will continue to monitor the SDA and SCL pins, and if a STOP condition occurs, the
SSPIF bit will be set.
A write to the SSPBUF will start the transmission of data at the first data bit, regardless of where
the transmitter left off when bus collision occurred.
In multi-master mode, the interrupt generation on the detection of start and stop conditions allows
the determination of when the bus is free. Control of the I
set in the SSPSTAT register, or the bus is idle and the S and P bits are cleared.
Figure 17-34: Bus Collision Timing for Transmit and Acknowledge
2
C port to its IDLE state.
Data changes
while SCL = 0
SDA released
by master
Preliminary
(Figure
SDA line pulled low
by another source
2
C bus is free, the user can resume communication by assert-
17-34).
Section 17. MSSP
Sample SDA. While SCL is high
data doesn’t match what is driven
by the master.
Bus collision has occurred.
2
C bus can be taken when the P bit is
Set bus collision
interrupt (BCLIF).
2
C bus is free, the user
DS31017A-page 17-49
17
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