PIC16F84AT-20I/SS Microchip Technology, PIC16F84AT-20I/SS Datasheet - Page 349
![IC MCU FLASH 1KX14 EE 20SSOP](/photos/6/58/65895/150-20-ssop_sml.jpg)
PIC16F84AT-20I/SS
Manufacturer Part Number
PIC16F84AT-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 PIC16F84AT-20I/SS
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Peripherals
POR, WDT
Number Of I /o
13
Program Memory Size
1.75KB (1K x 14)
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
For Use With
XLT20SS1-1 - SOCKET TRANSITION 20DIP 20SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Connectivity
-
- Current page: 349 of 688
- Download datasheet (3Mb)
18.4.3
18.4.3.1
1997 Microchip Technology Inc.
(RX/DT pin)
(RX/DT pin)
baud CLK
baud CLK
Sampling
Device Exceptions
x16 CLK
x16 CLK
RX
RX
The data on the RX/DT pin is sampled three times by a majority detect circuit to determine if a
high or a low level is present at the RX pin.
circuit. The sampling operates the same regardless of the state of the BRGH bit, only the source
of the x16 clock is different.
Figure 18-6:
All new devices will use the sampling scheme shown in
tion to the above sampling scheme are:
• PIC16C63
• PIC16C65
• PIC16C65A
• PIC16C73
• PIC16C73A
• PIC16C74
• PIC16C74A
These devices have a sampling circuitry that works as follows. If the BRGH bit (TXSTA<2>) is
clear (i.e., at the low baud rates), the sampling is done on the seventh, eighth and ninth falling
edges of a x16 clock
is done on the 3 clock edges preceding the second rising edge after the first falling edge of a x4
clock
Figure 18-7:
1
1
(Figure 18-8
2
2
3
3
4
4
RX Pin Sampling Scheme, BRGH = 0 or BRGH = 1
RX Pin Sampling Scheme (BRGH = 0)
and
(Figure
5
5
Figure
6
6
18-7). If bit BRGH is set (i.e., at the high baud rates), the sampling
18-9).
7
7
Samples
Samples
8
8
9
9
Start bit
Start bit
Figure 18-6
10
10
Section 18. USART
11
11
Baud CLK for all but start bit
Baud CLK for all but start bit
12
12
Figure
shows the waveform for the sampling
13
13
18-6. Devices that have an excep-
14
14
15
15
16
16
DS31018A-page 18-13
1
1
2
2
Bit0
Bit0
3
3
18
Related parts for PIC16F84AT-20I/SS
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![PIC16F84AT-04/SO](/photos/6/76/67656/150-18-soic_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 1KX14 EE 18SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F84AT-20/SO](/photos/6/76/67656/150-18-soic_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 1KX14 EE 18SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F84AT-04I/SO](/photos/6/76/67656/150-18-soic_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 1KX14 EE 18SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F84AT-20/SS](/photos/6/58/65895/150-20-ssop_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 1KX14 EE 20SSOP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F84AT-20I/SO](/photos/6/76/67656/150-18-soic_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 1KX14 EE 18SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F84AT-04I/SS](/photos/6/58/65895/150-20-ssop_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 1KX14 EE 20SSOP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F84AT-04/SS](/photos/6/58/65895/150-20-ssop_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 1KX14 EE 20SSOP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F84AT-04E/SO](/photos/6/76/67656/150-18-soic_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 4MHZ 1K FLASH 18SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F84AT-04E/SS](/photos/6/58/65895/150-20-ssop_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 4MHZ 1K FLASH 20SSOP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F84AT-20E/SO](/photos/6/76/67656/150-18-soic_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 20MHZ 1K FLSH 18SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F84AT-20E/SS](/photos/6/58/65895/150-20-ssop_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 20MHZ 1K FLSH 20SSOP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F84A](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![PIC16F84A-04/P](/photos/6/76/67657/18-dip_300mil__tmb.jpg)
Part Number:
Description:
IC MCU FLASH 1KX14 EE 18DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F84A-04/SO](/photos/6/76/67656/150-18-soic_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 1KX14 EE 18SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC16F84A-20/P](/photos/6/76/67657/18-dip_300mil__tmb.jpg)
Part Number:
Description:
IC MCU FLASH 1KX14 EE 18DIP
Manufacturer:
Microchip Technology
Datasheet: