PIC16F1938 Datasheet, PDF (403/452 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers

PIC16(L)F1938/9
TABLE 30-10: COMPARATOR SPECIFICATIONS
Operating Conditions: 1.8V < VDD < 5.5V, -40°C < TA < +125°C (unless otherwise stated).
Param
No.
Sym.
Characteristics
Min. Typ. Max. Units Comments
CM01
VIOFF Input Offset Voltage
—
±7.5
±60
mV High-Power mode
CM02
VICM
Input Common Mode Voltage
0
—
VDD
V
CM03
CMRR Common Mode Rejection Ratio
—
50
—
dB
CM04A
Response Time Rising Edge
—
400
800
ns High-Power mode
CM04B
CM04C
TRESP
Response Time Falling Edge
Response Time Rising Edge
—
200
400
—
1200
—
ns High-Power mode
ns Low-Power mode
CM04D
Response Time Falling Edge
—
550
—
ns Low-Power mode
CM05
TMC2OV Comparator Mode Change to
Output Valid*
—
—
10
s
CM06
*
Note 1:
2:
CHYSTER Comparator Hysteresis
—
45
—
mV Hysteresis ON
These parameters are characterized but not tested.
Response time measured with one comparator input at VDD/2, while the other input transitions
from VSS to VDD.
Comparator Hysteresis is available when the CxHYS bit of the CMxCON0 register is enabled.
TABLE 30-11: DIGITAL-TO-ANALOG CONVERTER (DAC) SPECIFICATIONS
Operating Conditions: 2.5V < VDD < 5.5V, -40°C < TA < +125°C (unless otherwise stated).
Param
No.
Sym.
Characteristics
Min. Typ. Max. Units
DAC01*
DAC02*
DAC03*
DAC04*
*
Note 1:
CLSB
Step Size
— VDD/32 —
V
CACC
Absolute Accuracy
—
—  1/2 LSb
CR
Unit Resistor Value (R)
— 5000 —

CST
Settling Time⁽¹⁾
—
—
10
s
These parameters are characterized but not tested.
Settling time measured while DACR<4:0> transitions from ‘0000’ to ‘1111’.
Comments
FIGURE 30-14: USART SYNCHRONOUS TRANSMISSION (MASTER/SLAVE) TIMING
CK
US121
US121
DT
Note:
US120
Refer to Figure 30-5 for load conditions.
US122
 2011 Microchip Technology Inc.
Preliminary
DS41574A-page 403