LC7267
Specifications
Absolute Maximum Ratings at VSS = 0 V
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VDD max
–0.3 to +11
V
Input voltage
VIN
–0.3 to VDD+0.3
V
Output voltage
VO1
XOUT
–0.3 to VDD+0.3
V
VO2
Output pins other than XOUT, output : off
0 to 15
V
Allowable power
dissipation
Pd max
Ta % 65°C
550
mW
Allowable power
dissipation of segment
outputs
Operating temperature
Pd seg 1
Pd seg 2
Pd seg 3
Pd seg 4
Pd seg 5
Pd seg 6
Topr
PM VDD = 4.5 to 6 V, IOL = 50 mA
b&e VDD = 4.5 to 6 V, IOL = 33 mA
Other outputs VDD = 4.5 to 6.5 V,
IOL = 16.5 mA
PM VDD = 6.0 to 10 V, IOL = 54 mA
b&e VDD = 6.0 to 10 V, IOL = 36 mA
Other outputs VDD = 6.0 to 10 V,
IOL = 18 mA
35
mW
30
mW
15
mW
38
mW
25
mW
13
mW
–30 to +65
°C
Storage temperature
Tstg
–40 to +125
°C
Allowable Operating Conditions at Ta = 25°C, VSS = 0 V, VDD = 4.5 to 10 V
Parameter
Supply voltage
Input high-level voltage
Input low-level voltage
Input medium-level
voltage
Input frequency
Input amplitude
Segment current
Symbol
VDD
VIH1
VIH2
VIH3
VIL1
VIL2
VIL3
Conditions
INHI, CTR/CLK, DEMAND
SET, FM/AM
FIF1, FIF2, FIF3
AIF1, AIF2, 12H/24H
INHI, CTR/CLK, DEMAND
SET, FM/AM
FIF1, FIF2, FIF3
AIF1, AIF2, 12H/24H
min
typ
4.5
0.8VDD
0.85VDD
max Unit
10 V
VDD V
VDD V
0.9VDD
VDD V
0
0.2VDD V
0
0.15VDD V
0
0.1VDD V
VIM
fIN1
fIN2
fIN3
VIN1
VIN2
VIN3
Iseg 1
Iseg 2
Iseg 3
SET
FMI, sine wave, capacitive coupling, VIN1 = 0.7Vp-p
AMI, sine wave, capacitive coupling, VIN2 = 0.5Vp-p
XIN, sine wave, capacitive coupling, VIN3 = 1Vp-p
FMI, sine wave, capacitive coupling,
fIN1 = 1 to 18 MHz
AMI, sine wave, capacitive coupling,
fIN2 = 0.5 to 3 MHz
XIN, sine wave, capacitive coupling,
fIN3 = 0.2 to 7.5 MHz
PM
b&e
Other outputs seg
0.45VDD
1
0.5
0.2
0.7
0.5
1.0
0.55VDD
18
3
7.5
V
MHz
MHz
MHz
0.9VDD Vp-p
0.9VDD Vp-p
0.9VDD
45
30
15
Vp-p
mA
mA
mA
Electrical Characteristics at VDD = 4.5 to 10 V, VSS = 0 V
Parameter
Input high-level current
Input low-level current
Input floating voltage
Symbol
IIH1
IIH2
IIH3
IIL
VIF1
VIF2
Conditions
FIF1 to FIF3, AIF1 to AIF2, SET, FM/AM, 12H/24H
CTR/CLK, VI = VDD
INHI, VI = VSS
DEMAND, VI = VDD
FIF1 to FIF3, AIF1 to AIF2, SET, FM/AM, 12H/24H,
CTR/CLK, VI = VSS
INHI, VI = open
DEMAND, VI = open
min
typ
max Unit
0
10 µA
40
1000 µA
40
1000 µA
–10
0 µA
0
0.2 V
0
0.1VDD
V
Continued next page.
No. 1511- 2/10