Datasheet

 2010 Microchip Technology Inc. Preliminary DS39979A-page 403
PIC18F87J72 FAMILY
TABLE 29-2: COMPARATOR SPECIFICATIONS
TABLE 29-3: VOLTAGE REFERENCE SPECIFICATIONS
TABLE 29-4: INTERNAL VOLTAGE REGULATOR SPECIFICATIONS
TABLE 29-5: INTERNAL LCD VOLTAGE REGULATOR SPECIFICATIONS
Operating Conditions: 3.0V  VDD  3.6V, -40°C  TA  +85°C (unless otherwise stated)
Param
No.
Sym Characteristics Min Typ Max Units Comments
D300 V
IOFF Input Offset Voltage — ±5.0 ±25 mV
D301 V
ICM Input Common-Mode Voltage 0 — AVDD – 1.5 V
D302 CMRR Common-Mode Rejection Ratio 55 — — dB
D303 TRESP Response Time
(1)
—150400 ns
D304 T
MC2OV Comparator Mode Change to
Output Valid*
—— 10 s
Note 1: Response time measured with one comparator input at (AV
DD – 1.5)/2, while the other input transitions
from V
SS to VDD.
Operating Conditions: 3.0V  V
DD  3.6V, -40°C  TA  +85°C (unless otherwise stated)
Param
No.
Sym Characteristics Min Typ Max Units Comments
D310 V
RES Resolution VDD/24 — VDD/32 LSb
D311 VRAA Absolute Accuracy — — 1/2 LSb
D312 VRUR Unit Resistor Value (R) — 2k — 
310 T
SET Settling Time
(1)
— — 10 s
Note 1: Settling time measured while CVRR = 1 and CVR<3:0> transitions from ‘0000’ to ‘1111’.
Operating Conditions: -40°C  T
A  +85°C (unless otherwise stated)
Param
No.
Sym Characteristics Min Typ Max Units Comments
V
RGOUT Regulator Output Voltage* — 2.5 — V
CEFC External Filter Capacitor Value* 4.7 10 — F Capacitor must be
low-ESR, a low series
resistance (< 5)
Operating Conditions: 2.0V  V
DD  3.6V, -40°C  TA  +85°C (unless otherwise stated)
Param
No.
Sym Characteristics Min Typ Max Units Comments
C
FLY Fly Back Capacitor 0.47 4.7 — F Capacitor must be low-ESR
VBIAS VPK-PK between LCDBIAS0 &
LCDBIAS3
— 3.40 3.6 V BIAS<2:0> = 111
— 3.27 — V BIAS<2:0> = 110
— 3.14 — V BIAS<2:0> = 101
— 3.01 — V BIAS<2:0> = 100
— 2.88 — V BIAS<2:0> = 011
— 2.75 — V BIAS<2:0> = 010
— 2.62 — V BIAS<2:0> = 001
— 2.49 — V BIAS<2:0> = 000