PIC17C756A-33/L Microchip Technology Inc., PIC17C756A-33/L Datasheet - Page 182

• Manufacturer Part Number: PIC17C756A-33/L
• Description: 68 PIN, 32 KB OTP, 902 RAM, 50 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC17C756A-33/L

• A/d Inputs: 12-Channel, 10-Bit
• Cpu Speed: 8.25 MIPS
• Eeprom Memory: 0 Bytes
• Input Output: 52
• Interface: I2C/SPI/USART
• Memory Type: OTP
• Number Of Bits: 8
• Package Type: 68-pin PLCC
• Programmable Memory: 32K Bytes
• Ram Size: 902 Bytes
• Speed: 16 MHz
• Timers: 2-8-bit, 2-16-bit
• Voltage, Range: 3-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part

PIC17C7XX
Figure 16-2 shows the conversion sequence and the
terms that are used. Acquisition time is the time that the
A/D module’s holding capacitor is connected to the
external voltage level. Then, there is the conversion
time of 12 T
The sum of these two times is the sampling time. There
is a minimum acquisition time to ensure that the holding
capacitor is charged to a level that will give the desired
accuracy for the A/D conversion.
FIGURE 16-2:
DS30289B-page 182
When A/D holding capacitor starts to charge.
After A/D conversion, or when new A/D channel is selected.
AD
Acquisition Time
, which is started when the GO bit is set.
A/D CONVERSION SEQUENCE
A/D Sample Time
When A/D conversion is started
(setting the GO bit).
A/D Conversion Time
A/D conversion complete, result is loaded in ADRES register.
Holding capacitor begins acquiring voltage level on selected
channel, ADIF bit is set.
2000 Microchip Technology Inc.