PIC16LC74A-04I/L Microchip Technology, PIC16LC74A-04I/L Datasheet - Page 134
![IC MCU OTP 4KX14 A/D PWM 44PLCC](/photos/6/63/66325/150-44-plcc_sml.jpg)
PIC16LC74A-04I/L
Manufacturer Part Number
PIC16LC74A-04I/L
Description
IC MCU OTP 4KX14 A/D PWM 44PLCC
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheets
1.PIC16LF627A-IP.pdf
(8 pages)
2.PIC16C72-04SO.pdf
(289 pages)
3.PIC16LC74A-04P.pdf
(8 pages)
Specifications of PIC16LC74A-04I/L
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
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)
2.5 V ~ 6 V
Data Converters
A/D 5x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-PLCC
Core
PIC
Processor Series
PIC16LC
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
Data Ram Size
192 B
Data Rom Size
192 B
On-chip Adc
Yes
Number Of Programmable I/os
33
Number Of Timers
3
Mounting Style
SMD/SMT
A/d Bit Size
8 bit
A/d Channels Available
8
Height
3.87 mm
Interface Type
I2C, SPI, USART
Length
16.59 mm
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Supply Voltage (max)
6 V
Supply Voltage (min)
2.5 V
Width
16.59 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16LC74A-04I/L
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC16C7X
14.4
14.4.1
A Power-on Reset pulse is generated on-chip when
V
take advantage of the POR, just tie the MCLR pin
directly (or through a resistor) to V
nate external RC components usually needed to create
a Power-on Reset. A maximum rise time for V
specified. See Electrical Specifications for details.
When the device starts normal operation (exits the
reset condition), device operating parameters (voltage,
frequency, temperature, ...) must be met to ensure
operation. If these conditions are not met, the device
must be held in reset until the operating conditions are
met. Brown-out Reset may be used to meet the startup
conditions.
For additional information, refer to Application Note
AN607, " Power-up Trouble Shooting ."
14.4.2
The Power-up Timer provides a fixed 72 ms nominal
time-out on power-up only, from the POR. The Power-
up Timer operates on an internal RC oscillator. The
chip is kept in reset as long as the PWRT is active. The
PWRT’s time delay allows V
level. A configuration bit is provided to enable/disable
the PWRT.
FIGURE 14-9: BROWN-OUT SITUATIONS
DS30390E-page 134
DD
rise is detected (in the range of 1.5V - 2.1V). To
Power-on Reset (POR), Power-up
Timer (PWRT) and Oscillator Start-up
Timer (OST), and Brown-out Reset
(BOR)
POWER-ON RESET (POR)
POWER-UP TIMER (PWRT)
Applicable Devices
72 73 73A 74 74A 76 77
Internal
Internal
Internal
Reset
Reset
Reset
V
V
V
DD
DD
DD
DD
to rise to an acceptable
DD
. This will elimi-
DD
is
<72 ms
72 ms
The power-up time delay will vary from chip to chip due
to V
parameters for details.
14.4.3
The Oscillator Start-up Timer (OST) provides 1024
oscillator cycle (from OSC1 input) delay after the
PWRT delay is over. This ensures that the crystal oscil-
lator or resonator has started and stabilized.
The OST time-out is invoked only for XT, LP and HS
modes and only on Power-on Reset or wake-up from
SLEEP.
14.4.4
A configuration bit, BODEN, can disable (if clear/pro-
grammed) or enable (if set) the Brown-out Reset cir-
cuitry. If V
greater than parameter #35, the brown-out situation will
reset the chip. A reset may not occur if V
4.0V for less than parameter #35. The chip will remain
in Brown-out Reset until V
Power-up Timer will now be invoked and will keep the
chip in RESET an additional 72 ms. If V
BV
go back into a Brown-out Reset and the Power-up
Timer will be initialized. Once V
the Power-up Timer will execute a 72 ms time delay.
The Power-up Timer should always be enabled when
Brown-out Reset is enabled.
cal brown-out situations.
72 ms
72 ms
DD
DD
while the Power-up Timer is running, the chip will
, temperature, and process variation. See DC
OSCILLATOR START-UP TIMER (OST)
BROWN-OUT RESET (BOR)
Applicable Devices
72 73 73A 74 74A 76 77
DD
falls below 4.0V (3.8V - 4.2V range) for
1997 Microchip Technology Inc.
BV
BV
BV
BV
BV
BV
DD
DD
DD
DD
DD
DD
DD
rises above BV
Figure 14-9 shows typi-
DD
Max.
Min.
Max.
Min.
Max.
Min.
rises above BV
DD
DD
drops below
falls below
DD
. The
DD
,
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