MAX6326-22W PHILIPS [NXP Semiconductors], MAX6326-22W Datasheet - Page 8

• Manufacturer Part Number: MAX6326-22W
• Description: 3-pin ultra-low power SC70/SOT microprocessor reset circuit
• Manufacturer: PHILIPS [NXP Semiconductors]

The MAX6328/MAX6348 RESET output is open drain and are easily
short duration, negative-going V
Philips Semiconductors
APPLICATION INFORMATION
Interfacing to Ps with Bidirectional Reset Pins
interfaced with microprocessors which have bidirectional reset pins,
such as the Motorola 68HC11. Directly connecting the
MAX6328/MAX6348 RESET output to the Ps reset input and
providing a pull-up resistor to V
independently assert reset (Figure 7).
Negative-going V
The MAX6326-MAX6348 Series resets are relatively immune to
capability greatly reduces false resets with short-duration pulses.
Figure 8, Maximum Transient Duration versus Reset Comparator
Overdrive, shows the maximum transient condition for which reset
signal are not generated. The graph shows the maximum pulse
width that a negative-going transient may have before it will
generate a reset signal. Note: as the amplitude of the transient
increases, the maximum allowable transient pulse width decreases.
2003 Aug 05
3-pin ultra-low power SC70/SOT
microprocessor reset circuit
Figure 7. Interfacing to Ps with Bidirectional Reset Pins
Figure 8. Maximum transient duration without causing a
450
400
350
300
250
200
150
100
50
0
reset pulse versus reset comparator overdrive.
1
MAX6328/
MAX6348
MAX6326/MAX6327/
MAX6328
GND
V
DD
RESET COMPARATOR OVERDRIVE, V
RESET
DD
transients
10
V
DD
DD
DD
R
PU
allows either device to
transients or power glitches. This
MAX6346/MAX6347/
MAX6348
RESET
MOTOROLA
68HCXX
100
V
GND
th
DD
– V
SL01835
CC
(mV)
SL01836
1000
8
1. Philips microprocessors with active-LOW resets: All 16-bit
1. Philips microprocessors with active-HIGH resets : 8xC5x, 8xC3x,
System configurations with various Ps
The MAX326-MAX6348 Series resets provide a system solution for
various Ps. Figures 9 and 10, respectively, reference the Philips
MAX6327/MAX6347 system resets.
NOTE:
NOTE:
Ps which are compatible with the MAX6326/MAX6346 and
devices from XA-family (XA-Cxx, XA-Gxx, XA-Sxx, XA-Hxx), all
LPC7xx devices (P87LPC760/761/762/767/768/769,
P80C591/P87C591 (with on-chip CAN controller).
8xC5xX2, 8xC3xX2, 8xC51Fx, 8xC51Rx+, 89C51Rx2, 89C66x,
8xC554, 8xC552, etc.
Figure 10.
Figure 9.
MAX6326/
MAX6346
MAX6327/
MAX6347
GND
GND
V
V
DD
P System Diagram using MAX6326/MAX6328
DD
P System Diagram using MAX6327/MAX6347
Push-Pull, Active-HIGH Resets
Push-Pull, Active-LOW Resets
RESET
RESET
MAX632x/MAX634x
V
V
DD
DD
RESET
RESET
P(Note 1)
P(Note 1)
GND
GND
V
V
DD
DD
SL01837
SL01838
Product data