PIC12LCE673-04I/P Microchip Technology, PIC12LCE673-04I/P Datasheet - Page 49

• Manufacturer Part Number: PIC12LCE673-04I/P
• Description: IC MCU OTP 1KX14 LV A/D EE 8DIP
• Manufacturer: Microchip Technology
• Series: PIC® 12Cr

Specifications of PIC12LCE673-04I/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• Program Memory Size: 1.75KB (1K x 14)
• Program Memory Type: OTP
• Eeprom Size: 16 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• Processor Series: PIC12LC
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 5
• Number Of Timers: 8
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8
• Data Rom Size: 128 B
• Height: 3.3 mm
• Length: 9.27 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.5 V
• Width: 6.35 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Connectivity: -
• Lead Free Status / Rohs Status: Details

8.2
The A/D conversion time per bit is defined as T
A/D conversion requires 9.5 T
The source of the A/D conversion clock is software
selected. The four possible options for T
For correct A/D conversions, the A/D conversion clock
(T
of 1.6 s. If the minimum T
obtained, T
Table 8-1 shows the resultant T
the device operating frequencies and the A/D clock
source selected.
TABLE 8-1:
Operation
2T
8T
32T
Internal ADC RC Oscillator
Note 1: The RC source has a typical T
AD
1999 Microchip Technology Inc.
OSC
OSC
) must be selected to ensure a minimum T
OSC
• 2T
• 8T
• 32T
• Internal ADC RC oscillator
2: These values violate the minimum required T
3: For faster conversion times, the selection of another clock source is recommended.
4: While in RC mode, with device frequency above 1 MHz, conversion accuracy is out of specification.
5: For extended voltage devices (LC), please refer to Electrical Specifications section.
Selecting the A/D Conversion Clock
OSC
OSC
OSC
AD
should be 8 s for preferred operation.
AD Clock Source (T
T
AD
vs. DEVICE OPERATING FREQUENCIES
AD
(5)
time of 1.6 s can not be
AD
AD
per 8-bit conversion.
times derived from
AD
AD
ADCS<1:0>
)
time of 4 s.
AD
00
01
10
11
are:
AD
AD
. The
AD
time
time.
2 - 6 s
500 ns
4 MHz
2.0 s
8.0 s
8.3
The ADCON1 and TRIS Registers control the opera-
tion of the A/D port pins. The port pins that are desired
as analog inputs must have their corresponding TRIS
bits set (input). If the TRIS bit is cleared (output), the
digital output level (V
The A/D operation is independent of the state of the
CHS<2:0> bits and the TRIS bits.
Note 1: When reading the port register, all pins
(1,4)
(2)
2: Analog levels on any pin that is defined as
Configuring Analog Port Pins
configured as analog input channel 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 AN<3:0>
pins) may cause the input buffer to con-
sume current that is out of the devices
specification.
Device Frequency
2 - 6 s
1.25 MHz
25.6 s
1.6 s
6.4 s
OH
or V
(1,4)
PIC12C67X
(3)
OL
) will be converted.
DS30561B-page 49
333.33 kHz
2 - 6 s
24 s
96 s
6 s
(3)
(3)
(1)