PIC16F84AT-20E/SO Microchip Technology, PIC16F84AT-20E/SO Datasheet - Page 18
![IC MCU CMOS 20MHZ 1K FLSH 18SOIC](/photos/6/76/67656/150-18-soic_sml.jpg)
PIC16F84AT-20E/SO
Manufacturer Part Number
PIC16F84AT-20E/SO
Description
IC MCU CMOS 20MHZ 1K FLSH 18SOIC
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-20E/SO
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 ~ 125°C
Package / Case
18-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Connectivity
-
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PIC16F84A
TABLE 4-1:
TABLE 4-2:
DS35007B-page 16
RA0
RA1
RA2
RA3
RA4/T0CKI
Legend: TTL = TTL input, ST = Schmitt Trigger input
Address
05h
85h
Legend: x = unknown, u = unchanged, - = unimplemented, read as '0'. Shaded cells are unimplemented, read as '0'.
Name
PORTA
TRISA
Name
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
PORTA FUNCTIONS
Bit0
bit0
bit1
bit2
bit3
bit4
Bit 7
—
—
Buffer Type
Bit 6
—
—
TTL
TTL
TTL
TTL
ST
Bit 5
—
—
RA4/T0CKI
Input/output
Input/output
Input/output
Input/output
Output is open drain type.
Input/output or external clock input for TMR0.
TRISA4
Bit 4
TRISA3 TRISA2 TRISA1 TRISA0 ---1 1111 ---1 1111
Bit 3
RA3
Bit 2
RA2
Bit 1
RA1
Function
Bit 0
RA0
2001 Microchip Technology Inc.
---x xxxx ---u uuuu
Power-on
Value on
Reset
Value on all
RESETS
other
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