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HC705RC16GRS/D Datasheet(PDF) 44 Page - NXP Semiconductors

Part # HC705RC16GRS/D
Description  The MC68HC705RC16 is a low-cost addition to the M68HC05 Family of microcontrollers (MCUs) and is suitable for remote control applications.
PDF  120 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

HC705RC16GRS/D Datasheet(HTML) 44 Page - NXP Semiconductors

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Resets
General Release Specification
MC68HC705RC16 — Rev. 3.0
Resets
5.3 External Reset (RESET)
The RESET pin is one of the two external sources of a reset. This pin is
connected to a Schmitt trigger input gate to provide an upper and lower
threshold voltage separated by a minimum amount of hysteresis. This
external reset occurs whenever the RESET pin is pulled below the lower
threshold and remains in reset until the RESET pin rises above the
upper threshold. This active-low input will generate the RST signal and
reset the CPU and peripherals. Termination of the external RESET input
or the internal COP watchdog reset are the only reset sources that can
alter the operating mode of the MCU.
NOTE:
Activation of the RST signal is generally referred to as reset of the
device, unless otherwise specified.
Figure 5-1. Reset Block Diagram
CPU
LATCH
RESET
COP WATCHDOG
(COPR)
RST
OSC
DATA
ADDRESS
PH2
TO OTHER
PERIPHERALS
S
IRQ
MODE
SELECT
TO IRQ
LOGIC
LATCH
R
POWER-ON RESET
(POR)
VDD
ILLEGAL ADDRESS
(ILLADDR)
ADDRESS
CLOCKED
D
D
LPRST
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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