PIC16C72A-20/SS Microchip Technology, PIC16C72A-20/SS Datasheet - Page 27
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PIC16C72A-20/SS
Manufacturer Part Number
PIC16C72A-20/SS
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SSOP,28PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC16C62B-04SO.pdf
(120 pages)
4.PIC16C72A-04SP.pdf
(6 pages)
Specifications of PIC16C72A-20/SS
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
OTP
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 5x8b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
28-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
309-1025 - ADAPTER 28-SSOP TO 28-DIP
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16C72A-20/SS
Manufacturer:
MICROCHIP
Quantity:
125
Part Number:
PIC16C72A-20/SS
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
5.0
The Timer1 module timer/counter has the following fea-
tures:
• 16-bit timer/counter
• Readable and writable
• Internal or external clock select
• Interrupt on overflow from FFFFh to 0000h
• Reset from CCP module trigger
Timer1 has a control register, shown in Register 5-1.
Timer1 can be enabled/disabled by setting/clearing
control bit TMR1ON (T1CON<0>).
Figure 5-1 is a simplified block diagram of the Timer1
module.
Additional information on timer modules is available in
the
(DS33023).
REGISTER 5-1:T1CON: TIMER1 CONTROL REGISTER (ADDRESS 10h)
bit7
1999 Microchip Technology Inc.
bit 7-6: Unimplemented: Read as ’0’
bit 5-4: T1CKPS1:T1CKPS0: Timer1 Input Clock Prescale Select bits
bit 3:
bit 2:
bit 1:
bit 0:
U-0
PICmicro™
—
TIMER1 MODULE
11 = 1:8 Prescale value
10 = 1:4 Prescale value
01 = 1:2 Prescale value
00 = 1:1 Prescale value
T1OSCEN: Timer1 Oscillator Enable Control bit
1 = Oscillator is enabled (TRISC<1:0> ignored)
0 = Oscillator is shut off
(The oscillator is turned off to reduce power drain
T1SYNC: Timer1 External Clock Input Synchronization Control bit
TMR1CS = 1
1 = Do not synchronize external clock input
0 = Synchronize external clock input
TMR1CS = 0
This bit is ignored. Timer1 uses the internal clock when TMR1CS = 0.
TMR1CS: Timer1 Clock Source Select bit
1 = External clock from pin RC0/T1OSO/T1CKI (on the rising edge)
0 = Internal clock (F
TMR1ON: Timer1 On bit
1 = Enables Timer1
0 = Stops Timer1
U-0
—
Mid-Range
T1CKPS1 T1CKPS0 T1OSCEN T1SYNC
R/W-0
OSC
Reference
R/W-0
/4)
R/W-0
Manual,
Preliminary
R/W-0
5.1
Timer1 can operate in one of these modes:
• As a timer
• As a synchronous counter
• As an asynchronous counter
The operating mode is determined by the clock select
bit, TMR1CS (T1CON<1>).
In timer mode, Timer1 increments every instruction
cycle. In counter mode, it increments on every rising
edge of the external clock input.
When the Timer1 oscillator is enabled (T1OSCEN is
set), the RC1/T1OSI and RC0/T1OSO/T1CKI pins
become inputs. That is, the TRISC<1:0> value is
ignored.
Timer1 also has an internal “reset input”. This reset can
be generated by the CCP module as a special event
trigger (Section 7.0).
TMR1CS TMR1ON
R/W-0
Timer1 Operation
R/W-0
PIC16C62B/72A
bit0
R = Readable bit
W = Writable bit
U = Unimplemented bit,
- n = Value at POR reset
read as ‘0’
DS35008B-page 27