PIC16F946T-I/PT Microchip Technology, PIC16F946T-I/PT Datasheet - Page 255

• Manufacturer Part Number: PIC16F946T-I/PT
• Description: Microcontroller
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F946T-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 336 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MA160011 - DAUGHTER BOARD PICDEM LCD 16F91X
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

TABLE 19-15: PIC16F946 A/D CONVERTER CHARACTERISTICS:
FIGURE 19-17:
© 2005 Microchip Technology Inc.
Standard Operating Conditions (unless otherwise stated)
Operating Temperature -40°C
A01
A03
A04
A06
A07
A10
A20
A21
A22
A25
A30
A50
Note 1:
Param
No.
A/D DATA
BSF ADCON0, GO
2:
SAMPLE
Note 1: If the A/D clock source is selected as RC, a time of T
A/D CLK
*
† Data in ‘Typ’ column is at 5V, 25 C unless otherwise stated. These parameters are for design guidance only and
ADRES
N
E
E
E
E
V
V
V
V
Z
I
REF
Sym
ADIF
REF
REF
REF
AIN
AIN
R
IL
DL
OFF
GN
These parameters are characterized but not tested.
are not tested.
The A/D conversion result never decreases with an increase in the input voltage and has no missing codes.
V
V
—
GO
REF
REF
+ Reference Voltage High
- Reference Voltage Low
Q4
+ current is from RA3/AN3/C1+/V
- current is from RA2/AN2/C2+/V
SLEEP instruction to be executed.
134
Resolution
Integral Error
Differential Error
Offset Error
Gain Error
Monotonicity
Reference Voltage
(V
Analog Input Voltage
Recommended Imped-
ance of Analog Voltage
Source
V
REF
REF
132
Characteristic
PIC16F946 A/D CONVERSION TIMING (NORMAL MODE)
+ – V
Input Current (2)
REF
-)
T
A
(T
+125°C
OSC
/2)
(1)
V
V
V
9
DD
SS
SS
Min
2.5
—
—
—
—
—
—
—
—
REF
OLD_DATA
– 0.3V
– 0.3V
– 2.5V
REF
-/COM2 pin or V
8
Preliminary
+/SEG15 pin or V
assured
SAMPLING STOPPED
131
7
Typ†
—
—
—
—
—
—
—
—
—
—
—
(1)
6
CY
SS
130
V
is added before the A/D clock starts. This allows the
V
DD
V
REF
, whichever is selected as the V
DD
REF
10 bits
, whichever is selected as the V
±150
3
Max
V
+ +0.3V
10
±5
—
+ 0.3V
DD
+ -2V
1
1
1
1
2
Units
LSb V
LSb No missing codes to 10 bits
LSb V
LSb V
bits
k
—
V
V
V
V
A
A
1
V
V
Full 10-bit accuracy
During V
During A/D conversion cycle.
REF
REF
REF
REF
SS
PIC16F946
0
= 5.0V
= 5.0V
= 5.0V
= 5.0V
V
AIN
AIN
Conditions
REF
NEW_DATA
DS41265A-page 253
acquisition.
DONE
1 T
REF
V
- source.
CY
1 T
REF
+ source.
CY
+