PIC16C63-04/SO Microchip Technology, PIC16C63-04/SO Datasheet - Page 5

• Manufacturer Part Number: PIC16C63-04/SO
• Description: IC MCU OTP 4KX14 PWM 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C63-04/SO

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Oscillator Type: External
• Core Processor: PIC
• Speed: 4MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Type: OTP
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SOIC (7.5mm Width)
• Controller Family/series: PIC16C
• No. Of I/o's: 22
• Ram Memory Size: 192Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• No. Of Pwm: RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MIL309-1073 - ADAPTER 28-SOIC TO 28-SOIC309-1024 - ADAPTER 28-SOIC TO 28-DIP309-1023 - ADAPTER 28-SOIC TO 28-DIP
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3. Module: Timer1
FIGURE 1:
 2001 Microchip Technology Inc.
TMR1 Increment
Clock (Input to Prescaler)
Write to TMR1H
and/or TMR1L Register(s)
TMR1H:TMR1L Increments
The operation of Timer1 needs some clarification
when the timer registers are written when the
TMR1ON bit is set.
The internal clock signal that is the input to the
TMR1 prescaler affects the incrementing of Timer1
(TMR1H:TMR1L registers and the Timer1 pres-
caler). When the Timer1 registers are NOT written,
the Timer1 will increment on the rising edge of the
TMR1 increment clock.
When the TMR1H and/or TMR1L registers are
written while this clock is high, TMR1 will incre-
ment on the next rising edge of this clock.
WRITES TO TIMER1 (EXTERNAL CLOCK/OSCILLATOR MODE)
Write to TMR1H
and/or TMR1L Register(s)
TMR1H:TMR1L Increments
When the TMR1H and/or TMR1L registers are
written while this clock is low, TMR1 will not incre-
ment on the next rising edge of this clock, but must
first have a falling clock and the rising clock for
TMR1 to increment.
Figure 1 shows the two cases of writes to the
TMR1H and/or TMR1L registers. Due to the V
and V
external Timer1 oscillator components, and exter-
nal clock frequency, the Timer1 increment clock
may not be of a 50% duty cycle.
The TMR1 increment clock is out of phase of the
T1OSO/T1CKI pin by a small propagation delay.
IL
thresholds on the oscillator/clock pins,
PIC16C63
DS80094A-page 5
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