PIC16F54-I/P Microchip Technology Inc., PIC16F54-I/P Datasheet - Page 20
![no-image](/images/manufacturer_photos/0/4/440/microchip_technology_inc__sml.jpg)
PIC16F54-I/P
Manufacturer Part Number
PIC16F54-I/P
Description
18 PIN, 768 B FLASH, 25 RAM, 12 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F54-IP.pdf
(90 pages)
Specifications of PIC16F54-I/P
Cpu Speed
5 MIPS
Eeprom Memory
0 Bytes
Frequency
20 MHz
Input Output
12
Memory Type
Flash
Number Of Bits
8
Package Type
18-pin PDIP
Programmable Memory
750 Bytes
Ram Size
25 Bytes
Speed
20 MHz
Timers
1-8-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F54-I/P
Manufacturer:
MARVELL
Quantity:
429
PIC16F5X
3.4
The Option register is a 6-bit wide, write-only register
which contains various control bits to configure the
Timer0/WDT prescaler and Timer0.
By executing the OPTION instruction, the contents of
the W register will be transferred to the Option register.
A Reset sets the Option<5:0> bits.
REGISTER 3-2:
DS41213C-page 18
Option Register
bit 7-6
bit 5
bit 4
bit 3
bit 2-0
Unimplemented: Read as ‘0’
T0CS: Timer0 Clock Source Select bit
1 = Transition on T0CKI pin
0 = Internal instruction cycle clock (CLKOUT)
T0SE: Timer0 Source Edge Select bit
1 = Increment on high-to-low transition on T0CKI pin
0 = Increment on low-to-high transition on T0CKI pin
PSA: Prescaler Assignment bit
1 = Prescaler assigned to the WDT
0 = Prescaler assigned to Timer0
PS<2:0>: Prescaler rate select bits
Legend:
R = Readable bit
- n = Value at POR
OPTION REGISTER
bit 7
U-0
—
Bit Value
000
001
010
011
100
101
110
111
U-0
—
Timer0 Rate
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
1 : 256
T0CS
W-1
W = Writable bit
‘1’ = Bit is set
WDT Rate
1 : 1
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
T0SE
W-1
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
PSA
W-1
PS2
W-1
2004 Microchip Technology Inc.
x = Bit is unknown
PS1
W-1
PS0
W-1
bit 0