ZXCM209 View Datasheet(PDF) - Zetex => Diodes
Part Name
Description
Manufacturer
ZXCM209 Datasheet PDF : 8 Pages
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ZXCM209
ZXCM210
Interfacing to µP’s with bidirectional reset I/O
The ZXCM series can be used with microprocessors
havng bidirectional reset pins, such as Motorola 68HC11
series. The addition of a 4.7k resistor between the ZXCM
reset output and the processor input ensures correct
operation of the reset circuit. A buffer to other circuit
components is then required to enable the processor
reset drive to operate correctly. The circuit
configuration is shown in Figure 2.
vcc
vcc
ZXCM
Reset
Output
4.7kΩ
to other
circuits
vcc
Micro
Reset
Input
Gnd
Gnd
Figure 2
Interfacing to µP’s with bidirectional reset I/O.
PIN DESCRIPTION
Pin
Number
1
2
3
Pin Name
VCC
RESET
(ZXCM209)
RESET
(ZXCM210)
Gnd
Pin Function
Supply voltage (+5, +3.3, +3 volts)
Output remains low while Vcc is below the reset threshold, and for a
minimum 140ms after VCC rises above the reset threshold.
Output remains high while VCC is below the reset threshold, and for a
minimum 140ms after VCC rises above the reset threshold.
Ground
3
1
2
ISSUE 3 - FEBUARY 2001
6
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