PIC16F84A-04E/SO Microchip Technology, PIC16F84A-04E/SO Datasheet - Page 11
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PIC16F84A-04E/SO
Manufacturer Part Number
PIC16F84A-04E/SO
Description
IC MCU CMOS 4MHZ 1K FLASH 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 PIC16F84A-04E/SO
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
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)
For Use With
I3-DB16F84A - BOARD DAUGHTER ICEPIC3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Connectivity
-
2.3.2
The OPTION register is a readable and writable
register which contains various control bits to configure
the TMR0/WDT prescaler, the external INT interrupt,
TMR0, and the weak pull-ups on PORTB.
REGISTER 2-2:
2001 Microchip Technology Inc.
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2-0
OPTION REGISTER
OPTION REGISTER (ADDRESS 81h)
RBPU: PORTB Pull-up Enable bit
1 = PORTB pull-ups are disabled
0 = PORTB pull-ups are enabled by individual port latch values
INTEDG: Interrupt Edge Select bit
1 = Interrupt on rising edge of RB0/INT pin
0 = Interrupt on falling edge of RB0/INT pin
T0CS: TMR0 Clock Source Select bit
1 = Transition on RA4/T0CKI pin
0 = Internal instruction cycle clock (CLKOUT)
T0SE: TMR0 Source Edge Select bit
1 = Increment on high-to-low transition on RA4/T0CKI pin
0 = Increment on low-to-high transition on RA4/T0CKI pin
PSA: Prescaler Assignment bit
1 = Prescaler is assigned to the WDT
0 = Prescaler is assigned to the Timer0 module
PS2:PS0: Prescaler Rate Select bits
Bit Value TMR0 Rate WDT Rate
bit 7
Legend:
R = Readable bit
- n = Value at POR
R/W-1
RBPU
000
001
010
011
100
101
110
111
INTEDG
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
1 : 256
R/W-1
R/W-1
1 : 1
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
T0CS
W = Writable bit
’1’ = Bit is set
R/W-1
T0SE
Note:
R/W-1
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
PSA
When the prescaler is assigned to
the WDT (PSA = ’1’), TMR0 has a 1:1
prescaler assignment.
R/W-1
PS2
PIC16F84A
x = Bit is unknown
R/W-1
PS1
DS35007B-page 9
R/W-1
PS0
bit 0