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NTE1537 Datasheet(PDF) 2 Page - NTE Electronics

Part No. NTE1537
Description  Integrated Circuit CMOS, Digital Frequency Indicator w/Clock LED Function
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Maker  NTE [NTE Electronics]
Homepage  http://www.nteinc.com
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Absolute Maximum Ratings: (TA = +25°C, VSS = 0V unless otherwise specified)
Maximum Supply Voltage, VDDmax
–0.3 to 11V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Cumulative applied time: 30min or less)
–0.3 to 14V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference Voltage (Vref ≤ VDD), Vref
–0.3 to 10V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Cumulative applied time: 30min or less)
–0.3 to 13V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage, VI
–0.3 to VDD+0.3V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Voltage (Output OFF), VO
–0.3 to VDD+0.3V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowable Power Dissipation (TA ≤ +75°C), PDmax
800mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowable Power Disipation of Segment Output, PD(seg)
Other than PM: IOL < 25mA
15mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PM: IOL < 75mA
45mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, Topr
–30
° to +75°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, Tstg
–40
° to +125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowable Operating Ranges: (TA = +25°C, VDD = 8 to 10.3V, VSS = 0V, Vref = 7.9 to 9V ≤ VDD,
Vref = 0V if VDD < 8V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Voltage
VDD1
All function operating mode
8.0
9.3
10.8
V
VDD2
Only clock operating mode
4.3
5.0
8.0
V
Reference Voltage
Vref
Vref ≤ VDD
7.9
8.0
9.0
V
Input “H” Level Voltage
VIH1
INHI, VDD = 4.3 to 10.3V
0.75VDD
VDD
V
Input “L” Level Voltage
VIL1
VSS
0.1VDD
V
Input “H” Level Voltage
VIH2
FM/AM, IF–FM, IF–AM1, IF–AM2, 12H/24H
0.85VDD
VDD
V
Input “L” Level Voltage
VIL2
VSS
0.15VDD
V
Input “H” Level Voltage
VIH3
SET, DEMAND, CTR/CLK
0.88VDD
VDD
V
Input “L” Level Voltage
VIL3
VSS
0.12VDD
V
Input “M” Level Voltage
VIM
0.36VDD
0.64VDD
V
Input Frequency
fIN1
Fin–FM, VP–P = 0.7V, Duty 50%
0.6
2.0
MHz
fIN2
Fin–AM, VP–P = 0.7V, Duty 50%
0.4
2.5
MHz
Operating Frequency
fopg
Crystal is externally connected across
OSC–IN and OSC–OUT
3.5
4.2
MHz
Input Amplitude
VP–P
Fin–FM, Fin–AM, Ceramic capacitor of
0.4
µF is connected across VDD an VSS
0.7
VP–P
Electrical Characteristics: (TA = +25°C, VDD = 8 to 10.3V, VSS = 0V, Vref = 7.9 to 9V,
Vref ≤ VDD unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Input Current
IIN
FM–Fine, AM–Fine, VIN = 0V or Vref
–1
+1
µA
Input “H” Level Current
IIH1
IF–FM, IF–AM1, IF–AM2, CTR/CLK,
12H/24H, VIN = 0.9VDD
–80
–30
–10
µA
Input “L” Level Current
IIL1
IF–FM, IF–AM1, IF–AM2, CTR/CLK,
12H/24H, VIN = 0V
–3
0
µA
Input “H” Level Current
IIH2
FM/AM, VIN = 0.9VDD
–40
–15
–5
µA
Input “L” Level Current
IIL2
FM/AM, VIN = 0V
–3
0
µA
Middle Point Setting Resistance
rs
SET, DEMAND
40
70
100
k
Note 1. + sign: Flowing into LSI
– sign: Flowing out of LSI




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