PIC16C774-E/L Microchip Technology, PIC16C774-E/L Datasheet - Page 130

• Manufacturer Part Number: PIC16C774-E/L
• Description: IC MCU OTP 4KX14 A/D PWM 44PLCC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C774-E/L

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: OTP
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 10x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-PLCC
• For Use With: DVA16XL441 - ADAPTER DEVICE ICE 44PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: PIC16C774E/L

PIC16C77X
12.2.3
For timing insensitive applications the “RC” device
option offers additional cost savings. The RC oscillator
frequency is a function of the supply voltage, the resis-
tor (R
ing temperature. In addition to this, the oscillator
frequency will vary from unit to unit due to normal pro-
cess parameter variation. Furthermore, the difference
in lead frame capacitance between package types will
also affect the oscillation frequency, especially for low
C
erances of external R and C components used need to
be taken into account for each application.
shows how the R/C combination is connected to the
PIC16C77X.
FIGURE 12-4: RC OSCILLATOR MODE
DS30275A-page 130
EXT
Cext
V
Rext
SS
EXT
values. These factors and the variation due to tol-
V
DD
RC OSCILLATOR
) and capacitor (C
Fosc/4
OSC1
OSC2/CLKOUT
EXT
) values, and the operat-
PIC16C77X
Figure 12-4
Internal
Advance Information
clock
1999 Microchip Technology Inc.