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MC1451A Datasheet(PDF) 5 Page - List of Unclassifed Manufacturers

Part No. MC1451A
Description  Advanced Step Motor Control Chipset
Download  51 Pages
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Maker  ETC1 [List of Unclassifed Manufacturers]
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MC1451A Datasheet(HTML) 5 Page - List of Unclassifed Manufacturers

 
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5
Absolute Maximum Ratings
Unless otherwise stated, all electrical specifications are for both
the I/O and CP chips.
Storage Temperature, Ts .................... -55 deg. C to +150 deg. C
Supply Voltage, Vcc ............................ -0.3 V to +7.0 V
Power Dissipation, Pd ......................... 650 mW (I/O and CP
combined)
Operating Ratings
Operating Temperature, Ta .................0 deg. C to +70 deg. C*
Nominal Clock Frequency, Fclk ...........25.0 Mhz
Supply Voltage, Vcc.............................4.75 V to 5.25 V
* Industrial and Military operating ranges also available. Contact your
PMD representative for more information.
DC Electrical Characteristics
(Vcc and Ta per operating ratings, Fclk = 25.0 Mhz)
Symbol
Parameter
Min.
Max.
Units
Conditions
Vcc
Supply Voltage
4.75
5.25
V
Idd
Supply Current
100
mA
open outputs
Input Voltages
Vih
Logic 1 input voltage
2.0
Vcc + 0.3
V
Vil
Logic 0 input voltage
-0.3
0.8
V
Vihclk
Logic 1 voltage for clock pin
(ClkIn)
3.0
Vcc+0.3
V
Vihreset
Logic 1 voltage for reset pin
(reset)
4.0
Vcc+0.3
V
Output Voltages
Voh
Logic 1 Output Voltage
2.4
V
@CP Io = 300 uA
@I/O Io = 4 mA
Vol
Logic 0 Output Voltage
0.33
V
@CP Io = 2 mA
@I/O Io = 4 mA
Iout
Tri-State output leakage current
-20
20
uA
0 < Vout < Vcc
Iin
Input current
-50
50
uA
0 < Vi < Vcc
Iinclk
Input current ClkIn
-20
20
uA
0 < Vi < Vcc
AC Electrical Characteristics
(see reference timing diagrams)
(Vcc and Ta per operating ratings; Fclk = 25.0 Mhz)
(~ character indicates active low signal)
Timing Interval
T#
Min.
Max.
Units
Encoder and Index Pulse Timing
Motor-Phase Pulse Width
T1
1.6
uS
Dwell Time Per State
T2
0.8
uS
Index Pulse Setup and Hold
(relative to Quad A and Quad B low)
T3
0
uS
Reset Timing
Stable Power to Reset
0.25
Sec
Reset Low Pulse Width
1.0
uS
Clock Timing
Clock Frequency (Fclk)
6.7
25.6
Mhz
Clock Pulse Width
T4
19.5
75 (note 2)
nS
Clock Period
T5
39
149 (note 2)
nS


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