PIC17C42A-33I/PQ Microchip Technology, PIC17C42A-33I/PQ Datasheet - Page 15
![IC MCU OTP 2KX16 PWM 44-MQFP](/photos/6/59/65984/150-44-pqfp_sml.jpg)
PIC17C42A-33I/PQ
Manufacturer Part Number
PIC17C42A-33I/PQ
Description
IC MCU OTP 2KX16 PWM 44-MQFP
Manufacturer
Microchip Technology
Series
PIC® 17Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC17C42A-16P.pdf
(241 pages)
3.PIC17C42A-16P.pdf
(4 pages)
Specifications of PIC17C42A-33I/PQ
Core Processor
PIC
Core Size
8-Bit
Speed
33MHz
Connectivity
UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
33
Program Memory Size
4KB (2K x 16)
Program Memory Type
OTP
Ram Size
232 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-MQFP, 44-PQFP
Processor Series
PIC17C
Core
PIC
Data Bus Width
8 bit
Data Ram Size
232 B
Interface Type
SCI, USART
Maximum Clock Frequency
33 MHz
Number Of Programmable I/os
33
Number Of Timers
8
Operating Supply Voltage
2.5 V to 6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ICE2000
Minimum Operating Temperature
- 40 C
For Use With
AC164316 - MODULE SKT MPLAB PM3 44MQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC17C42A-33I/PQ
Manufacturer:
Microchip Technology
Quantity:
10 000
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4.0
The PIC17CXX differentiates between various kinds of
reset:
• Power-on Reset (POR)
• MCLR reset during normal operation
• WDT Reset (normal operation)
Some registers are not affected in any reset condition;
their status is unknown on POR and unchanged in any
other reset. Most other registers are forced to a “reset
state” on Power-on Reset (POR), on MCLR or WDT
Reset and on MCLR reset during SLEEP. They are not
affected by a WDT Reset during SLEEP, since this reset
is viewed as the resumption of normal operation. The
TO and PD bits are set or cleared differently in different
reset situations as indicated in Table 4-3. These bits are
used in software to determine the nature of reset. See
Table 4-4 for a full description of reset states of all reg-
isters.
A simplified block diagram of the on-chip reset circuit is
shown in Figure 4-1.
FIGURE 4-1:
1996 Microchip Technology Inc.
Note:
MCLR
OSC1
† This RC oscillator is shared with the WDT
V
DD
when not in a power-up sequence.
RESET
While the device is in a reset state, the
internal phase clock is held in the Q1 state.
Any processor mode that allows external
execution will force the RE0/ALE pin as a
low output and the RE1/OE and RE2/WR
pins as high outputs.
RC OSC†
OST/PWRT
On-chip
V
Module
SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT
detect
WDT
DD
rise
OST
PWRT
10-bit Ripple counter
10-bit Ripple counter
Power_On_Reset
Time_Out
Reset
WDT
External
This document was created with FrameMaker 4 0 4
Reset
4.1
4.1.1
The Power-on Reset circuit holds the device in reset
until V
2.3V). The PIC17C42 does not produce an internal
reset when V
an internal reset for both rising and falling V
advantage of the POR, just tie the MCLR/V
directly (or through a resistor) to V
external RC components usually needed to create
Power-on Reset. A minimum rise time for V
required. See Electrical Specifications for details.
4.1.2
The Power-up Timer provides a fixed 96 ms time-out
(nominal) on power-up. This occurs from rising edge of
the POR signal and after the first rising edge of MCLR
(detected high). The Power-up Timer operates on an
internal RC oscillator. The chip is kept in RESET as
long as the PWRT is active. In most cases the PWRT
delay allows the V
The power-up time delay will vary from chip to chip and
to V
details.
Power_Up
(Enable the PWRT timer
only during Power_Up)
(Power_Up + Wake_Up) (XT + LF)
(Enable the OST if it is Power_Up or Wake_Up
from SLEEP and OSC type is XT or LF)
DD
DD
Power-on Reset (POR), Power-up
Timer (PWRT), and Oscillator Start-up
Timer (OST)
POWER-ON RESET (POR)
POWER-UP TIMER (PWRT)
and temperature. See DC parameters for
is above the trip point (in the range of 1.4V -
DD
declines. All other devices will produce
DD
to rise to an acceptable level.
PIC17C4X
S
R
DD
. This will eliminate
DS30412C-page 15
Q
Chip_Reset
DD
. To take
PP
DD
pin
is
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