PIC16F874-20/L Microchip Technology, PIC16F874-20/L Datasheet - Page 657
![IC MCU FLASH 4KX14 EE 44PLCC](/photos/6/63/66325/150-44-plcc_sml.jpg)
PIC16F874-20/L
Manufacturer Part Number
PIC16F874-20/L
Description
IC MCU FLASH 4KX14 EE 44PLCC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F873-04SO.pdf
(218 pages)
4.PIC16F873-04SO.pdf
(5 pages)
5.PIC16F873-04SO.pdf
(5 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F874-20/L
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F873-04SO PDF datasheet #3
- PIC16F873-04SO PDF datasheet #4
- PIC16F873-04SO PDF datasheet #5
- Current page: 657 of 688
- Download datasheet (3Mb)
A.3
1997 Microchip Technology Inc.
Transfer Acknowledge
SDA
SCL
Condition
Start
S
All data must be transmitted per byte, with no limit to the number of bytes transmitted per data
transfer. After each byte, the slave-receiver generates an acknowledge bit (ACK)
When a slave-receiver doesn’t acknowledge the slave address or received data, the master must
abort the transfer. The slave must leave SDA high so that the master can generate the STOP con-
dition
Figure A-4:
If the master is receiving the data (master-receiver), it generates an acknowledge signal for each
received byte of data, except for the last byte. To signal the end of data to the slave-transmitter,
the master does not generate an acknowledge (not acknowledge). The slave then releases the
SDA line so the master can generate the STOP condition. The master can also generate the
STOP condition during the acknowledge pulse for valid termination of data transfer.
If the slave needs to delay the transmission of the next byte, holding the SCL line low will force
the master into a wait state. Data transfer continues when the slave releases the SCL line. This
allows the slave to move the received data or fetch the data it needs to transfer before allowing
the clock to start. This wait state technique can also be implemented at the bit level,
Figure A-5:
MSB
1
(Figure
Address
2
A-1).
Slave-Receiver Acknowledge
Data Transfer Wait State
acknowledgment
signal from receiver
Transmitter
7
Output by
Output by
SCL from
Receiver
Master
Data
Data
R/W
8
Condition
Start
S
ACK
9
byte complete
interrupt with receiver
Wait
State
1
clock line held low while
interrupts are serviced
1
2
not acknowledge
acknowledge
Data
2
8
Acknowledgment
Clock Pulse for
3 8
acknowledgment
signal from receiver
Appendix A
9
ACK
9
DS31034A-page 34-5
Condition
Stop
P
(Figure
Figure
A-4).
A-5.
34
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