PIC16F946T-I/PT Microchip Technology, PIC16F946T-I/PT Datasheet - Page 256

• 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

PIC16F946
TABLE 19-16: PIC16F946 A/D CONVERSION REQUIREMENTS
DS41265A-page 254
Standard Operating Conditions (unless otherwise stated)
Operating Temperature
130
130
131
132
134
Note 1:
Param
No.
2:
*
† Data in ‘Typ’ column is at 5V, 25 C unless otherwise stated. These parameters are for design guidance
T
T
T
T
T
Sym
AD
CNV
ACQ
AD
GO
These parameters are characterized but not tested.
only and are not tested.
ADRESH and ADRESL registers may be read on the following T
See Table 12-1 for minimum conditions.
A/D Clock Period
A/D Internal RC
Oscillator Period
Conversion Time
(not including
Acquisition Time)
Acquisition Time
Q4 to A/D Clock
Start
Characteristic
-40°C
(2)
(1)
T
A
+125°C
Min
3.0*
3.0*
2.0*
1.6
—
5*
—
Preliminary
T
Typ†
OSC
11.5
6.0
4.0
—
—
11
—
/2
Max
9.0*
6.0*
—
—
—
—
—
—
Units
T
—
AD
CY
s
s
s
s
s
s
cycle.
T
T
ADCS<1:0> = 11 (RC mode)
At V
At V
Set GO/DONE bit to new data in A/D
Result register
The minimum time is the amplifier
settling time. This may be used if the
“new” input voltage has not changed
by more than 1 LSb (i.e., 4.1 mV @
4.096V) from the last sampled
voltage (as stored on C
If the A/D clock source is selected as
RC, a time of T
the A/D clock starts. This allows the
SLEEP instruction to be executed.
OSC
OSC
DD
DD
-based, V
-based, V
© 2005 Microchip Technology Inc.
= 2.5V
= 5.0V
Conditions
REF
REF
CY
is added before
full range
3.0V
HOLD
).