PIC16C74A-20/PT Microchip Technology, PIC16C74A-20/PT Datasheet - Page 121
![IC MCU OTP 4KX14 A/D PWM 44TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC16C74A-20/PT
Manufacturer Part Number
PIC16C74A-20/PT
Description
IC MCU OTP 4KX14 A/D PWM 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC16C72-04SO.pdf
(289 pages)
4.PIC16LC74A-04P.pdf
(8 pages)
Specifications of PIC16C74A-20/PT
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
7KB (4K x 14)
Program Memory Type
OTP
Ram Size
192 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 6 V
Data Converters
A/D 8x8b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16C74A-20/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F818-ISO PDF datasheet #2
- PIC16C72-04SO PDF datasheet #3
- PIC16LC74A-04P PDF datasheet #4
- Current page: 121 of 289
- Download datasheet (3Mb)
13.2
The A/D conversion time per bit is defined as T
A/D conversion requires 9.5T
The source of the A/D conversion clock is software
selectable. The four possible options for T
For correct A/D conversions, the A/D conversion clock
(T
of 1.6 s.
Table 13-1 shows the resultant T
the device operating frequencies and the A/D clock
source selected.
TABLE 13-1:
Operation
2T
8T
32T
RC
Legend: Shaded cells are outside of recommended range.
Note 1: The RC source has a typical T
AD
1997 Microchip Technology Inc.
OSC
OSC
(5)
• 2T
• 8T
• 32T
• Internal RC oscillator
) must be selected to ensure a minimum T
OSC
2: These values violate the minimum required T
3: For faster conversion times, the selection of another clock source is recommended.
4: When device frequency is greater than 1 MHz, the RC A/D conversion clock source is recommended for
5: For extended voltage devices (LC), please refer to Electrical Specifications section.
AD Clock Source (T
Selecting the A/D Conversion Clock
Applicable Devices
72 73 73A 74 74A 76 77
OSC
OSC
sleep operation only.
OSC
T
AD
ADCS1:ADCS0
vs. DEVICE OPERATING FREQUENCIES
00
01
10
11
AD
AD
)
AD
per 8-bit conversion.
times derived from
AD
AD
time of 4 s.
2 - 6 s
are:
100 ns
400 ns
20 MHz
1.6 s
AD
AD
. The
time
(1,4)
(2)
(2)
AD
time.
2 - 6 s
13.3
The ADCON1, TRISA, and TRISE registers control the
operation of the A/D port pins. The port pins that are
desired as analog inputs must have their correspond-
ing TRIS bits set (input). If the TRIS bit is cleared (out-
put), the digital output level (V
converted.
The A/D operation is independent of the state of the
CHS2:CHS0 bits and the TRIS bits.
400 ns
5 MHz
1.6 s
6.4 s
Note 1: When reading the port register, all pins
Note 2: Analog levels on any pin that is defined as
Device Frequency
(1,4)
(2)
Configuring Analog Port Pins
Applicable Devices
72 73 73A 74 74A 76 77
configured as analog input channels will
read as cleared (a low level). Pins config-
ured as digital inputs, will convert an ana-
log input. Analog levels on a digitally
configured input will not affect the conver-
sion accuracy.
a digital input (including the AN7:AN0
pins), may cause the input buffer to con-
sume current that is out of the devices
specification.
2 - 6 s
25.6 s
1.25 MHz
1.6 s
6.4 s
(1,4)
(3)
PIC16C7X
OH
DS30390E-page 121
or V
333.33 kHz
2 - 6 s
24 s
96 s
6 s
OL
) will be
(3)
(3)
(1)
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