PIC16F913-I/SP Microchip Technology Inc., PIC16F913-I/SP Datasheet - Page 24
PIC16F913-I/SP
Manufacturer Part Number
PIC16F913-I/SP
Description
28 PIN, 7 KB FLASH, 352 RAM, 25 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F913-ISP.pdf
(272 pages)
Specifications of PIC16F913-I/SP
A/d Inputs
5-Channel, 10-Bit
Comparators
2
Cpu Speed
5 MIPS
Eeprom Memory
256 Bytes
Input Output
25
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
28-pin SPDIP
Programmable Memory
7K Bytes
Ram Size
256 Bytes
Speed
20 MHz
Timers
2-8-bit, 1-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F913-I/SP
Manufacturer:
TI
Quantity:
212
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PIC16F917/916/914/913
2.2.2.2
The Option register is a readable and writable register,
which contains various control bits to configure:
• TMR0/WDT prescaler
• External RB0/INT interrupt
• TMR0
• Weak pull-ups on PORTB
REGISTER 2-2:
DS41250E-page 22
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2-0
Option Register
OPTION_REG – OPTION REGISTER (ADDRESS: 81h OR 181h)
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/SEG0 pin
0 = Interrupt on falling edge of RB0/INT/SEG0 pin
T0CS: TMR0 Clock Source Select bit
1 = Transition on RA4/C1OUT/T0CKI/SEG4 pin
0 = Internal instruction cycle clock (CLKO)
T0SE: TMR0 Source Edge Select bit
1 = Increment on high-to-low transition on RA4/C1OUT/T0CKI/SEG4 pin
0 = Increment on low-to-high transition on RA4/C1OUT/T0CKI/SEG4 pin
PSA: Prescaler Assignment bit
1 = Prescaler is assigned to the WDT
0 = Prescaler is assigned to the Timer0 module
PS<2:0>: Prescaler Rate Select bits
bit 7
Legend:
R = Readable bit
- n = Value at POR
R/W-1
RBPU
Bit Value
000
001
010
011
100
101
110
111
INTEDG
R/W-1
TMR0 Rate
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
1 : 256
R/W-1
T0CS
Preliminary
W = Writable bit
‘1’ = Bit is set
WDT Rate
R/W-1
T0SE
1 : 1
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
Note:
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-1
PSA
To achieve a 1:1 prescaler assignment for
TMR0, assign the prescaler to the WDT by
setting PSA bit to ‘1’ (OPTION_REG<3>).
See Section 5.4 “Prescaler”.
R/W-1
PS2
© 2005 Microchip Technology Inc.
x = Bit is unknown
R/W-1
PS1
R/W-1
PS0
bit 0
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