PIC16F737-I/SS Microchip Technology, PIC16F737-I/SS Datasheet - Page 167

• Manufacturer Part Number: PIC16F737-I/SS
• Description: IC PIC MCU FLASH 4KX14 28SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F737-I/SS

• 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: 25
• Program Memory Type: FLASH
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SSOP
• Controller Family/series: PIC16F
• No. Of I/o's: 25
• Ram Memory Size: 368Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Interface: I2C, SPI, USART
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: I3DBF777 - BOARD DAUGHTER ICEPIC3AC164307 - MODULE SKT FOR PM3 28SSOPXLT28SS-1 - SOCKET TRANSITION ICE 28SSOP
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

13.7
When a comparator is active and the device is placed
in Sleep mode, the comparator remains active and the
interrupt is functional if enabled. This interrupt will
wake-up the device from Sleep mode when enabled.
While the comparator is powered up, higher Sleep
currents than shown in the power-down current
specification will occur. Each operational comparator
will consume additional current as shown in the com-
parator specifications. To minimize power consumption
while in Sleep mode, turn off the comparators
(CM<2:0> = 111) before entering Sleep. If the device
wakes up from Sleep, the contents of the CMCON
register are not affected.
13.8
A device Reset forces the CMCON register to its Reset
state, causing the comparator module to be in the
Comparator Off mode, CM<2:0> = 111. This ensures
compatibility to the PIC16F87X devices.
FIGURE 13-4:
TABLE 13-1:
 2004 Microchip Technology Inc.
9Ch
9Dh
0Bh, 8Bh,
10Bh,18Bh
0Dh
8Dh
05h
85h
Legend:
Address
Comparator Operation
During Sleep
Effects of a Reset
x = unknown, u = unchanged, — = unimplemented, read as ‘0’. Shaded cells are unused by the comparator module.
CMCON
CVRCON CVREN
INTCON
PIR2
PIE2
PORTA
TRISA
VA
Name
Legend:
REGISTERS ASSOCIATED WITH COMPARATOR MODULE
R
S
< 10K
ANALOG INPUT MODEL
PORTA Data Direction Register
C2OUT
OSFIE
OSFIF
Bit 7
RA7
GIE
C
V
I
R
R
VA
A
LEAKAGE
T
PIN
IC
S
IN
C
5 pF
CVROE
C1OUT
CMIF
CMIE
PEIE
Bit 6
PIN
RA6
= Input Capacitance
= Threshold Voltage
= Leakage Current at the pin due to various junctions
= Interconnect Resistance
= Source Impedance
= Analog Voltage
TMR0IE INT0IE
C2INV
CVRR
LVDIE
LVDIF
Bit 5
RA5
C1INV
V
Bit 4
RA4
DD
—
—
—
V
V
T
T
= 0.6V
= 0.6V
BCLIE
CVR3
BCLIF
RBIE
Bit 3
RA3
CIS
13.9
A simplified circuit for an analog input is shown in
Figure 13-4. Since the analog pins are connected to a
digital output, they have reverse biased diodes to V
and V
V
range by more than 0.6V in either direction, one of the
diodes is forward biased and a latch-up condition may
occur. A maximum source impedance of 10 k
recommended for the analog sources. Any external
component connected to an analog input pin, such as
a capacitor or a Zener diode, should have very little
leakage current.
SS
TMR0IF
and V
CVR2
Bit 2
CM2
RA2
SS
—
—
. The analog input, therefore, must be between
I
±500 nA
V
Analog Input Connection
Considerations
LEAKAGE
SS
DD
CCP3IE CCP2IE
CCP3IF
INT0IF
. If the input voltage deviates from this
CVR1
Bit 1
CM1
RA1
R
IC
CCP2IF
CVR0
RBIF
Bit 0
CM0
RA0
PIC16F7X7
0000 0111 0000 0111
000- 0000 000- 0000
0000 000x 0000 000u
000- 0-00 000- 0-00
000- 0-00 000- 0-00
xx0x 0000 uu0u 0000
1111 1111 1111 1111
Value on
POR
DS30498C-page 165
Value on
all other
Resets
DD
is