PIC16F874-04I/P Microchip Technology, PIC16F874-04I/P Datasheet - Page 119
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PIC16F874-04I/P
Manufacturer Part Number
PIC16F874-04I/P
Description
IC MCU FLASH 4KX14 EE 40DIP
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 PIC16F874-04I/P
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
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
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Controller Family/series
PIC16F
No. Of I/o's
33
Eeprom Memory Size
128Byte
Ram Memory Size
192Byte
Cpu Speed
4MHz
No. Of
RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
444-1001 - DEMO BOARD FOR PICMICRO MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F874-04I/PQ
Manufacturer:
Microchip Technology
Quantity:
10 000
Company:
Part Number:
PIC16F874-04I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
11.5
The A/D module can operate during SLEEP mode. This
requires that the A/D clock source be set to RC
(ADCS1:ADCS0 = 11). When the RC clock source is
selected, the A/D module waits one instruction cycle
before starting the conversion. This allows the SLEEP
instruction to be executed, which eliminates all digital
switching noise from the conversion. When the conver-
sion is completed, the GO/DONE bit will be cleared and
the result loaded into the ADRES register. If the A/D
interrupt is enabled, the device will wake-up from
SLEEP. If the A/D interrupt is not enabled, the A/D
module will then be turned off, although the ADON bit
will remain set.
When the A/D clock source is another clock option (not
RC), a SLEEP instruction will cause the present conver-
sion to be aborted and the A/D module to be turned off,
though the ADON bit will remain set.
TABLE 11-2:
0Bh,8Bh,
10Bh,18Bh
0Ch
8Ch
1Eh
9Eh
1Fh
9Fh
85h
05h
89h
09h
Legend: x = unknown, u = unchanged, - = unimplemented, read as '0'. Shaded cells are not used for A/D conversion.
Note 1: These registers/bits are not available on the 28-pin devices.
Address
2001 Microchip Technology Inc.
(1)
(1)
A/D Operation During SLEEP
INTCON
PIR1
PIE1
ADRESH A/D Result Register High Byte
ADRESL
ADCON0
ADCON1
TRISA
PORTA
TRISE
PORTE
Name
REGISTERS/BITS ASSOCIATED WITH A/D
A/D Result Register Low Byte
PSPIF
PSPIE
ADCS1
ADFM
Bit 7
GIE
IBF
—
—
—
(1)
(1)
ADCS0 CHS2
ADIE
Bit 6
PEIE
ADIF
OBF
—
—
—
—
PORTA Data Direction Register
PORTA Data Latch when written: PORTA pins when read
RCIE
IBOV
Bit 5
RCIF
T0IE
—
—
PSPMODE
CHS1
Bit 4
INTE
TXIE
TXIF
—
—
PCFG3
SSPIF
SSPIE
CHS0
Bit 3
RBIE
—
—
Turning off the A/D places the A/D module in its lowest
current consumption state.
11.6
A device RESET forces all registers to their RESET
state. This forces the A/D module to be turned off, and
any conversion is aborted. All A/D input pins are con-
figured as analog inputs.
The value that is in the ADRESH:ADRESL registers is
not
ADRESH:ADRESL registers will contain unknown data
after a Power-on Reset.
Note:
GO/DONE
PORTE Data Direction bits
CCP1IE
CCP1IF
PCFG2
Bit 2
T0IF
RE2
modified
Effects of a RESET
For the A/D module to operate in SLEEP,
the A/D clock source must be set to RC
(ADCS1:ADCS0 = 11). To allow the con-
version to occur during SLEEP, ensure the
SLEEP instruction immediately follows the
instruction that sets the GO/DONE bit.
TMR2IF TMR1IF 0000 0000 0000 0000
TMR2IE TMR1IE 0000 0000 0000 0000
PCFG1
Bit 1
INTF
RE1
—
for
PCFG0
ADON
a
Bit 0
RBIF
RE0
PIC16F87X
Power-on
0000 000x 0000 000u
xxxx xxxx uuuu uuuu
xxxx xxxx uuuu uuuu
0000 00-0 0000 00-0
--0- 0000
--11 1111 --11 1111
--0x 0000 --0u 0000
0000 -111 0000 -111
---- -xxx ---- -uuu
Value on
POR,
BOR
DS30292C-page 117
Reset.
--0- 0000
Value on
MCLR,
WDT
The