mc33690dw Freescale Semiconductor, Inc, mc33690dw Datasheet - Page 15

• Manufacturer Part Number: mc33690dw
• Description: Standalone Tag Reader Circuit Starc
• Manufacturer: Freescale Semiconductor, Inc

© Motorola, Inc., 2002.
LOW VOLTAGE RESET
1. As the voltage regulator and the low voltage reset are using the same internal voltage reference, it is ensured that the low voltage reset
OSCILLATOR
1. This level ensures the circuit operation with a 8MHz clock. It is applied through a capacitive coupling. A 1MΩ resistor connected between
1.12 Pull-up Current
1.13 Output Resistance in reset condition
1.14 Input Low Voltage
1.15 Input High Voltage
1.6
1.7
8.0
8.1
8.3
6V ≤ V
Pin LVR
6V ≤ V
Pins XTAL1, XTAL2
Low Voltage Reset Low Threshold
Low Voltage Reset Hysteresis
Input Capacitance
Voltage gain V
Clock input level
will only occur when the voltage regulator is out of regulation.
XTAL1 and XTAL2 biases the oscillator input.
SUP
SUP
≤ 16V, V
≤ 16V, V
Characteristic
Parameter
XTAL2
VDD
LVR
SS
SS
/ V
= 0V, T
= 0V, T
XTAL1
Freescale Semiconductor, Inc.
For More Information On This Product,
J
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MOTOROLA SEMICONDUCTORS PRODUCTS
= –40°C to +125°C, unless otherwise noted
= –40°C to +125°C, unless otherwise noted
Figure 11 : Low voltage reset waveform
Symbol
Symbol
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V
C
V
V
I
V
V
A
LVRUP
R
LVRON
IHLVR
XTAL1
XTAL1
ILLVR
LVRH
OSC
LVR
MC33690
See note
15
Test Conditions
Test Condition
& Comments
& Comments
V
V
V
V
XTAL1
XTAL1
See note
LVR
LVR
1
= 2.5V
= 2.5V
and figure 11
= 2.5V
= 2.5V
1
V
V
Min
Min
0.7 x
LVRON
LVRON
V
200
4.1
1.5
50
5
0
DD
-
-
+ V
revision 4.8, 5 February 2002
Typ
Typ
4.35
100
370
10
25
5
-
-
LVRH
-
Max
Max
0.3 x
V
V
V
150
500
4.6
15
DD
DD
DD
-
-
Unit
Unit
Vpp
mV
µA
pF
V
Ω
V
V
-
Type
Type