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M491B Datasheet(PDF) 3 Page - STMicroelectronics

Part # M491B
Description  SINGLE-CHIP VOLTAGE SYNTHESIS TUNING SYSTEM WITH 1 ANALOG CONTROL
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M491B Datasheet(HTML) 3 Page - STMicroelectronics

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ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VDD
Supply Voltage
– 0.3, + 7
V
VPP
Memory Supply Voltage
– 0.3, + 26
V
VI
Input Voltage
– 0.3, + 15
V
VO (off)
Off State Input Voltage (except pin 3)
Pin 3
15
28
V
V
IOL
Output Low Current
Led Driver Outputs
Pins 6 – 14
Pins 4 – 5
All Other Outputs
20
20
7.5
5
mA
tpd
Max. Delay between Memory Timing and Memory Supply Pulses
5
µs
Ptot
Total Package Power Dissipation
1
W
Tstg
Storage Teperature
– 25, + 125
°C
Top
Operating Temperature
0, + 70
°C
Stresses above those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(Tamb = 0 to + 70
°C, VDD = +5V unless otherwise specified)
Pin
Symbol
Parameter
Test Conditions
Min.
Typ. Max. Unit
2-Memory Supply
IPP
Memory Supply Current
VPP = 25V
Write
Peak
Average
Erase
Peak
Average
Read
Peak
Average
42
12
9
5
8
2.5
mA
R
Pull Down Resistor
25
k
3–Write Timing Out
VOL
Output Low Voltage
VDD = 4.75 V, IOL = 2.5 mA
8
V
IO (off)
Output Leakage Current
VDD = 4.75 V, VOUT = 26 V
100
µA
4–Fine Tuning D/A
5–Tuning D/A
IO (off)
VDD = 5.25 V, VO (off) = 13.2 V
50
µA
VOL
VDD = 4.75 V, IOL = 5 mA
1
V
6–Digital AFT Out
VOL
VDD = 4.75 V, IOL = 20 mA
1.5
V
IO (off)
VDD = 5.25 V, VO (off) = 13.2 V
100
µA
9–Power Supply
IDD
Supply Current
VDD = 5.25 V
100
mA
11–I.R. Input
VIPP
Peak-to-Peak Voltage
0.5
13.2
V
12–AFT1
13–AFT2
VIL
Input low Voltage
VDD = 5.25 V
1.5
V
VIH
Input High Voltage
VDD = 5.25 V
3.5
V
IIL
Input Low Current
VDD = 5.25 V, VIL = 1.5 V
–0.4
mA
R
Pull-up Resistor
30
k
14—Display Out
VOL
VDD = 4.75 V, IOL = 20 mA
1.5
V
IO (off)
VDD = 5.25 V, VO (off) = 13.2 V
100
µA
15–Volume D/A
VOL
VDD = 4.75 V, IOL = 4 mA
1
V
IO (off)
VDD = 5.25 V, VO (off) = 13.2 V
50
µA
16–Linear AFT Out
VOL
VDD = 4.75 V, IOL = 1 mA
0.4
V
IO (off)
VDD = 5.25 V, VO (off) = 13.2 V
50
µA
17–Digital AFT En-
able
VIL
0.8
V
VIH
2.0
V
IIL
VDD = 5.25 V, VIL = 0.8 V
–0.4
mA
R
Pull-up Resistor
30
k
M491B
3/16


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