PIC16LF628-04I/SS Microchip Technology, PIC16LF628-04I/SS Datasheet - Page 62

• Manufacturer Part Number: PIC16LF628-04I/SS
• Description: IC MCU FLASH 2KX14 COMP 20SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16LF628-04I/SS

• Core Size: 8-Bit
• Program Memory Size: 3.5KB (2K x 14)
• Oscillator Type: Internal
• Core Processor: PIC
• Speed: 4MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 224 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SSOP
• Controller Family/series: PIC16LF
• No. Of I/o's: 16
• Eeprom Memory Size: 128Byte
• Ram Memory Size: 224Byte
• Cpu Speed: 20MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC16F62X
EXAMPLE 10-1:
10.2
The full range of V
the construction of the module. The transistors on the
top and bottom of the resistor ladder network
(Figure 10-1) keep V
The Voltage Reference is V
the V
tested absolute accuracy of the Voltage Reference can
be found in Table 17-2.
10.3
When the device wakes-up from SLEEP through an
interrupt or a Watchdog Timer timeout, the contents of
the VRCON register are not affected. To minimize
current consumption in SLEEP mode, the Voltage
Reference should be disabled.
FIGURE 10-2:
TABLE 10-1:
DS40300C-page 60
MOVLW
MOVWF
BSF
MOVLW
MOVWF
MOVLW
MOVWF
BCF
CALL
9Fh
1Fh
85h
Note 1: — = Unimplemented, read as ‘0’.
Address
Note 1: R is dependent upon the Voltage Reference Configuration VRCON<3:0> and VRCON<5>.
REF
Voltage Reference Accuracy/Error
Operation During SLEEP
output changes with fluctuations in V
VRCON
CMCON C2OUT C1OUT
TRISA
Name
0x02
CMCON
STATUS,RP0
0x07
TRISA
0xA6
VRCON
STATUS,RP0
DELAY10
REGISTERS ASSOCIATED WITH VOLTAGE REFERENCE
SS
Module
V
REF
TRISA7 TRISA6 TRISA5 TRISA4
to V
REF
VREN
Bit 7
VOLTAGE REFERENCE
CONFIGURATION
VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE
from approaching V
DD
Voltage
Reference
Output
Impedance
DD
cannot be realized due to
; 4 Inputs Muxed
; to 2 comps.
; go to Bank 1
; RA3-RA0 are
; outputs
; enable V
; low range
; set V
; go to Bank 0
; 10µs delay
VROE
Bit 6
derived and therefore,
R
(1)
R
<3:0>=6
C2INV
Bit 5
VRR
REF
RA2
SS
DD
or V
C1INV
Bit 4
. The
—
Preliminary
DD
.
TRISA3
Bit 3
VR3
CIS
10.4
A device RESET disables the Voltage Reference by
clearing bit V
disconnects the reference from the RA2 pin by clearing
bit V
range by clearing bit V
value select bits, VRCON<3:0>, are also cleared.
10.5
The
independently of the Comparator module. The output
of the reference generator may be connected to the
RA2 pin if the TRISA<2> bit is set and the V
VRCON<6>, is set. Enabling the Voltage Reference
output onto the RA2 pin with an input signal present will
increase current consumption. Connecting RA2 as a
digital output with V
current consumption.
The RA2 pin can be used as a simple D/A output with
limited drive capability. Due to the limited drive
capability, a buffer must be used in conjunction with the
Voltage Reference output for external connections to
V
technique.
REF
TRISA2
Bit 2
CM2
VR2
ROE
. Figure 10-2 shows an example buffering
Op Amp
+
Voltage
Effects of a RESET
Connection Considerations
(VRCON<6>) and selects the high voltage
TRISA1
Bit 1
CM1
VR1
REN
Reference
(VRCON<7>). This RESET also
V
TRISA0
REF
REF
Bit 0
CM0
VR0
 2003 Microchip Technology Inc.
RR
Output
enabled will also increase
(VRCON<5>). The V
000- 0000 000- 0000
0000 0000 0000 0000
1111 1111 1111 1111
Value On
POR
module
Value On
All Other
RESETS
operates
ROE
REF
bit,