PIC16C54B-04/SS Microchip Technology, PIC16C54B-04/SS Datasheet - Page 21
![MICRO CTRL 512 4MHZ OTP 20SSOP](/photos/6/58/65895/150-20-ssop_sml.jpg)
PIC16C54B-04/SS
Manufacturer Part Number
PIC16C54B-04/SS
Description
MICRO CTRL 512 4MHZ OTP 20SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Specifications of PIC16C54B-04/SS
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Peripherals
POR, WDT
Number Of I /o
12
Program Memory Size
768B (512 x 12)
Program Memory Type
OTP
Ram Size
25 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
20-SSOP
Lead Free Status / RoHS Status
Request inventory verification / Request inventory verification
Eeprom Size
-
Data Converters
-
Connectivity
-
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4.4
The OPTION register is a 6-bit wide, write-only
register which contains var ious control bits to
configure the Timer0/WDT prescaler and Timer0.
FIGURE 4-9:
1998 Microchip Technology Inc.
bit7
bit 7-6:
bit 5:
bit 4:
bit 3:
bit 2-0:
U-0
—
OPTION Register
Unimplemented.
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 (not implemented on PIC16C52)
0 = Prescaler assigned to Timer0
PS2:PS0: Prescaler rate select bits
Bit Value
U-0
000
001
010
011
100
101
110
111
—
6
OPTION REGISTER
T0CS
Timer0 Rate WDT Rate (not implemented on PIC16C52)
W-1
5
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
1 : 256
T0SE
W-1
4
1 : 1
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
PSA
W-1
3
Preliminary
W-1
PS2
2
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.
W-1
PS1
1
W-1
PS0
bit0
W = Writable bit
U = Unimplemented bit
- n = Value at POR reset
PIC16C5X
DS30453B-page 21
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