PIC16CE625-04/SS Microchip Technology, PIC16CE625-04/SS Datasheet - Page 48

• Manufacturer Part Number: PIC16CE625-04/SS
• Description: IC MCU OTP 2KX14 EE COMP 20SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16CE625-04/SS

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 13
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: OTP
• Eeprom Size: 128 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SSOP
• For Use With: 309-1016 - ADAPTER 20-SSOP TO 18-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Connectivity: -

PIC16CE62X
EXAMPLE 9-1:
9.2
The full range of V
the construction of the module. The transistors on the
top and bottom of the resistor ladder network
(Figure 9-1) keep V
The Voltage Reference is V
the V
absolute accuracy of the Voltage Reference can be
found in Table 13-2.
9.3
When the device wakes up from sleep through an
interrupt or a Watchdog Timer time-out, the contents of
the VRCON register are not affected. To minimize
current consumption in SLEEP mode, the Voltage
Reference should be disabled.
FIGURE 9-2:
TABLE 9-1:
Legend: - = Unimplemented, read as "0"
DS40182C-page 48
MOVLW
MOVWF
BSF
MOVLW
MOVWF
MOVLW
MOVWF
BCF
CALL
Address
9Fh
1Fh
85h
Note 1:
REF
Voltage Reference Accuracy/Error
Operation During Sleep
output changes with fluctuations in V
Name
VRCON
CMCON
TRISA
0x02
CMCON
STATUS,RP0
0x07
TRISA
0xA6
VRCON
STATUS,RP0
DELAY10
R is dependent upon the Voltage Reference Configuration VRCON<3:0> and VRCON<5>.
VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE
REGISTERS ASSOCIATED WITH VOLTAGE REFERENCE
SS
Module
REF
V
CONFIGURATION
VOLTAGE REFERENCE
REF
to V
C2OUT
VREN
Bit 7
from approaching V
—
DD
Impedance
Reference
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
; 10 s delay
Voltage
Output
C1OUT
VROE
derived and therefore,
Bit 6
R
—
(1)
R
<3:0>=6
Bit 5
VRR
REF
—
—
RA2
SS
TRISA4
DD
or V
Bit 4
•
. The
—
—
DD
.
TRISA3
Bit 3
VR3
CIS
9.4
A device reset disables the Voltage Reference by clear-
ing bit V
the reference from the RA2 pin by clearing bit V
(VRCON<6>) and selects the high voltage range by
clearing bit V
bits, VRCON<3:0>, are also cleared.
9.5
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
.
+
–
Voltage
REN
Figure 9-2
Effects of a Reset
Connection Considerations
TRISA1
(VRCON<7>). This reset also disconnects
Bit 1
CM1
VR1
RR
•
(VRCON<5>). The V
Reference
TRISA0
V
shows
Bit 0
CM0
VR0
REF
REF
Output
1999 Microchip Technology Inc.
enabled will also increase
000- 0000
00-- 0000
---1 1111
an
POR / BOD
Value On
Module
example
REF
value select
000- 0000
00-- 0000
---1 1111
Value On
All Other
Resets
operates
buffering
ROE
ROE
bit,