PIC16F874-20/L Microchip Technology, PIC16F874-20/L Datasheet - Page 587

• 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

30.14
Note 1: Instruction cycle period (T
Param.
1997 Microchip Technology Inc.
CLKOUT
No.
1A
1
2
3
4
† Data in “Typ” column is at 5V, 25˚C unless otherwise stated. These parameters are for design guidance only
OSC1
and are not tested.
based on characterization data for that particular oscillator type under standard operating conditions with
the device executing code. Exceeding these specified limits may result in an unstable oscillator operation
and/or higher than expected current consumption. All devices are tested to operate at "min." values with an
external clock applied to the OSC1/CLKIN pin.
When an external clock input is used, the "Max." cycle time limit is "DC" (no clock) for all devices.
Fosc
Tosc
T
TosL,
TosH
TosR,
TosF
Symbol
Example External Clock Timing Waveforms and Requirements
CY
External CLKIN
Frequency
Oscillator Frequency
External CLKIN Period
Oscillator Period
Instruction Cycle Time
External Clock in (OSC1)
High or Low Time
External Clock in (OSC1)
Rise or Fall Time
Figure 30-2:
Table 30-15:
Section 30. Electrical Specifications
Q4
Characteristic
(1)
CY
(1)
) equals four times the input oscillator time-base period. All specified values are
Example External Clock Timing Requirements
Q1
Example External Clock Timing Waveforms
1
(1)
(1)
(1)
Min
250
100
250
250
100
200
DC
DC
DC
DC
DC
0.1
2.5
50
50
50
60
15
—
—
—
4
4
5
5
5
Q2
Typ†
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2
10,000
3
Max
200
200
250
250
DC
10
20
10
20
25
50
15
—
—
—
—
—
—
—
—
—
—
4
4
4
Q3
3
Units
MHz XT and RC osc PIC16CXXX-04
MHz HS osc
MHz
MHz RC osc
MHz XT osc
MHz HS osc
MHz
kHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s
s
LP osc
LP osc mode
XT and RC osc PIC16CXXX-04
HS osc
LP osc
RC osc
XT osc
HS osc
LP osc
T
XT osc
XT osc
LP osc
HS osc
XT osc
LP osc
HS osc
CY
Q4
4
= 4/F
OSC
4
Conditions
DS31030A-page 30-17
PIC16LCXXX-04
PIC16CXXX-10
PIC16CXXX-20
PIC16LCXXX-04
PIC16CXXX-04
PIC16LCXXX-04
PIC16CXXX-04
PIC16LCXXX-04
PIC16CXXX-10
PIC16CXXX-20
PIC16LCXXX-04
PIC16LCXXX-04
PIC16CXXX-10
PIC16CXXX-20
PIC16LCXXX-04
PIC16CXXX-04
PIC16LCXXX-04
PIC16CXXX-04
PIC16LCXXX-04
PIC16CXXX-10
PIC16CXXX-20
PIC16LCXXX-04
PIC16CXXX-04
PIC16LCXXX-04
PIC16LCXXX-04
PIC16CXXX-20
PIC16CXXX-04
PIC16LCXXX-04
PIC16CXXX-20
Q1
30