PIC16C61/JW Microchip Technology, PIC16C61/JW Datasheet - Page 36
![MICRO CTRL 1K 20MHZ EPROM 18CDIP](/photos/12/13/121351/150-18-cdip_sml.jpg)
PIC16C61/JW
Manufacturer Part Number
PIC16C61/JW
Description
MICRO CTRL 1K 20MHZ EPROM 18CDIP
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheet
1.PIC16LC62A-04SP.pdf
(337 pages)
Specifications of PIC16C61/JW
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
EPROM, UV
Ram Size
36 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 6 V
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
18-CDIP (0.300", 7.62mm) Window
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Connectivity
-
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PIC16C6X
4.2.2.2
The OPTION register is a readable and writable regis-
ter which contains various control bits to configure the
TMR0/WDT prescaler, the external INT interrupt,
TMR0, and the weak pull-ups on PORTB.
FIGURE 4-10: OPTION REGISTER (ADDRESS 81h, 181h)
DS30234D-page 36
Applicable Devices
61 62 62A R62 63 R63 64 64A R64 65 65A R65 66 67
bit7
bit 7:
bit 6:
bit 5:
bit 4:
bit 3:
bit 2-0:
R/W-1
RBPU
OPTION REGISTER
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
INTEDG
Bit Value
R/W-1
000
001
010
011
100
101
110
111
R/W-1
T0CS
TMR0 Rate
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
1 : 256
R/W-1
T0SE
WDT Rate
1 : 1
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
R/W-1
PSA
R/W-1
PS2
R/W-1
Note:
PS1
To achieve a 1:1 prescaler assignment for
TMR0 register, assign the prescaler to the
Watchdog Timer.
R/W-1
PS0
bit0
R = Readable bit
W = Writable bit
U = Unimplemented bit,
- n = Value at POR reset
1997 Microchip Technology Inc.
read as ‘0’
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