PIC16F59-I/P Microchip Technology, PIC16F59-I/P Datasheet - Page 35
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PIC16F59-I/P
Manufacturer Part Number
PIC16F59-I/P
Description
IC PIC MCU FLASH 2KX12 40DIP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Specifications of PIC16F59-I/P
Core Size
8-Bit
Program Memory Size
3KB (2K x 12)
Core Processor
PIC
Speed
20MHz
Peripherals
POR, WDT
Number Of I /o
32
Program Memory Type
FLASH
Ram Size
134 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Controller Family/series
PIC16F
No. Of I/o's
32
Ram Memory Size
134Byte
Cpu Speed
20MHz
No. Of Timers
1
Package
40PDIP
Device Core
PIC
Family Name
PIC16
Maximum Speed
20 MHz
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
32
Number Of Timers
1
Processor Series
PIC16F
Core
PIC
Data Ram Size
134 B
Maximum Clock Frequency
20 MHz
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
DV164101, DV164120
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164001 - MODULE SKT PROMATEII 18/28DIP
Eeprom Size
-
Data Converters
-
Connectivity
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC16F59-I/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
PIC16F59-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
7.0
The Timer0 module has the following features:
• 8-bit Timer/Counter register, TMR0
• 8-bit software programmable prescaler
• Internal or external clock select
Figure 7-1 is a simplified block diagram of the Timer0
module.
Timer mode is selected by clearing the T0CS bit
(OPTION<5>). In Timer mode, the Timer0 module will
increment every instruction cycle (without prescaler). If
TMR0 register is written, the increment is inhibited for
the following two cycles (Figure 7-2 and Figure 7-3).
The user can work around this by writing an adjusted
value to the TMR0 register.
FIGURE 7-1:
FIGURE 7-2:
© 2007 Microchip Technology Inc.
- Readable and writable
- Edge select for external clock
Instruction
Timer0
Note 1:
PC
(Program
Counter)
Fetch
Instruction
Executed
T0CKI
pin
2:
TIMER0 MODULE AND TMR0
REGISTER
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
T0
Bits T0CS, T0SE, PSA, PS2, PS1 and PS0 are located in Section 3.4 “Option Register”.
The prescaler is shared with the Watchdog Timer (Figure 7-5).
T0SE(1)
PC - 1
F
OSC
TIMER0 BLOCK DIAGRAM
TIMER0 TIMING: INTERNAL CLOCK/NO PRESCALER
MOVWF TMR0 MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W
/4
T0 + 1
PC
T0CS(1)
0
1
T0 + 2
Write TMR0
executed
PC + 1
PS2, PS1, PS0(1)
Programmable
Prescaler(2)
NT0
Read TMR0
reads NT0
3
PC + 2
Counter mode is selected by setting the T0CS bit
(OPTION<5>). In this mode, Timer0 will increment
either on every rising or falling edge of pin T0CKI. The
incrementing edge is determined by the source edge
select bit T0SE (OPTION<4>). Clearing the T0SE bit
selects the rising edge. Restrictions on the external
clock input are discussed in detail in Section 7.1
“Using Timer0 with an External Clock”.
The prescaler assignment is controlled in software by
the control bit PSA (OPTION<3>). Clearing the PSA bit
will assign the prescaler to Timer0. The prescaler is not
readable or writable. When the prescaler is assigned to
the Timer0 module, prescale values of 1:2, 1:4,...,
1:256 are selectable. Section 7.2 “Prescaler” details
the operation of the prescaler.
A summary of registers associated with the Timer0
module is found in Table 7-1.
PSA(1)
Read TMR0
reads NT0
NT0
Note:
1
0
PC + 3
PSout
The prescaler may be used by either the
Timer0 module or the Watchdog Timer, but
not both.
(2 cycle delay)
Read TMR0
reads NT0
NT0
Sync with
Internal
PC + 4
Clocks
Read TMR0
reads NT0 + 1
NT0 + 1
PIC16F5X
PSout
Sync
PC + 5
DS41213D-page 33
TMR0 Reg
Data Bus
Read TMR0
reads NT0 + 2
NT0 + 2
PC + 6
8