PIC16C620-20E/SO Microchip Technology, PIC16C620-20E/SO Datasheet - Page 51
![IC MCU OTP 512X14 COMP 18SOIC](/photos/6/76/67656/150-18-soic_sml.jpg)
PIC16C620-20E/SO
Manufacturer Part Number
PIC16C620-20E/SO
Description
IC MCU OTP 512X14 COMP 18SOIC
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Specifications of PIC16C620-20E/SO
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
13
Program Memory Size
896B (512 x 14)
Program Memory Type
OTP
Ram Size
80 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
18-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Connectivity
-
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9.3
The PIC16C62X differentiates between various kinds
of RESET:
a)
b)
c)
d)
e)
f)
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 reset to a “RESET state” on Power-on Reset,
FIGURE 9-6:
2003 Microchip Technology Inc.
V
MCLR/
OSC1/
CLKIN
PP
V
Pin
Note 1: This is a separate oscillator from the RC oscillator of the CLKIN pin.
Power-on Reset (POR)
MCLR Reset during normal operation
MCLR Reset during SLEEP
WDT Reset (normal operation)
WDT wake-up (SLEEP)
Brown-out Reset (BOR)
DD
Pin
RESET
On-chip
RC OSC
OST/PWRT
Brown-out
V
Module
(1)
detect
WDT
DD
Reset
rise
OST
SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT
PWRT
10-bit Ripple-counter
Reset
10-bit Ripple-counter
WDT
Time-out
BODEN
Power-on Reset
External
RESET
SLEEP
Enable PWRT
Enable OST
MCLR Reset, WDT Reset and MCLR Reset during
SLEEP. They are not affected by a WDT wake-up,
since this is viewed as the resumption of normal
operation. TO and PD bits are set or cleared differently
in different RESET situations as indicated in Table 9-2.
These bits are used in software to determine the nature
of the RESET. See Table 9-5 for a full description of
RESET states of all registers.
A simplified block diagram of the on-chip RESET circuit
is shown in Figure 9-6.
The MCLR Reset path has a noise filter to detect and
ignore small pulses. See Table 12-5 for pulse width
specification.
See Table 9-1 for time-out situations.
PIC16C62X
S
R
DS30235J-page 49
Q
Q
Chip_Reset
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