PIC16F874-20/L Microchip Technology, PIC16F874-20/L Datasheet - Page 589

• Manufacturer Part Number: PIC16F874-20/L
• Description: IC MCU FLASH 4KX14 EE 44PLCC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F874-20/L

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Controller Family/series: PIC16F
• No. Of I/o's: 33
• Eeprom Memory Size: 128Byte
• Ram Memory Size: 192Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 192 B
• Interface Type: MSSP, PSP, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163022, DV164120
• Minimum Operating Temperature: 0 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164309 - MODULE SKT FOR PM3 44PLCC444-1001 - DEMO BOARD FOR PICMICRO MCUDVA16XL441 - ADAPTER DEVICE ICE 44PLCC309-1040 - ADAPTER 44-PLCC ZIF TO 40-DIP309-1039 - ADAPTER 44-PLCC TO 40-DIPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
• Lead Free Status / Rohs Status: Details

30.15
Param.
1997 Microchip Technology Inc.
No.
Watchdog
30
31
32
33
34
35
† Data in “Typ” column is at 5V, 25˚C unless otherwise stated. These parameters are for design guidance only and are not
Time-out
I/O Pins
Time-out
Internal
Internal
RESET
RESET
MCLR
PWRT
Timer
tested.
POR
OSC
Note: Refer to
V
V
DD
DD
TmcL
Twdt
Tost
Tpwrt
T
T
Symbol
Example Power-up and Reset Timing Waveforms and Requirements
IOZ
BOR
MCLR Pulse Width (low)
Watchdog Timer Time-out
Period (No Prescaler)
Oscillation Start-up Timer
Period
Power up Timer Period
I/O Hi-impedance from MCLR
Low or Watchdog Timer Reset
Brown-out Reset Pulse Width
Figure 30-1
Figure 30-4:
Figure 30-5:
Table 30-17:
Section 30. Electrical Specifications
33
Characteristic
for load conditions.
32
Reset, and Power-up Timer Requirements
Example Reset, Watchdog Timer, Oscillator Start-up Timer, Brown-out
Timer Timing Waveforms
Example Reset, Watchdog Timer, Oscillator Start-up Timer and Power-up
Brown-out Reset Timing
Min
100
28
—
—
2
7
BV
1024T
DD
34
Typ†
18
72
—
—
—
30
OSC
Max
132
2.1
—
33
—
—
35
Units
ms
ms
—
s
s
s
31
V
V
T
V
V
OSC
DD
DD
DD
DD
= 5V, -40˚C to +125˚C
= 5V, -40˚C to +125˚C
= 5V, -40˚C to +125˚C
= OSC1 period
B
DS31030A-page 30-19
Conditions
VDD
34
(See D005)
30