LC7267
Continued from preceding page.
Parameter
Symbol
Conditions
min
typ
max Unit
VOL1 PM VDD = 4.5 to 10 V, IOL = 45 mA
0
Output low-level voltage
VOL2 b&e VDD = 4.5 to 10 V, IOL = 30 mA
0
VOL3 Other outputs seg, VDD = 4.5 to 10 V, IOL = 15 mA
0
Output off leakage current
IOFF All segments output pins, VOUT = 13 V
0
Current drain
FM mode, FM/AM = VDD, fIN1 = 18 MHz, 0.7Vp-p
(or AM mode, FM/AM = VSS, fIN2 = 3 MHz, 0.5Vp-p)
IDD
fIN3 = 7.2 MHz, 1Vp-p,
FIF1, FIF2, FIF3 = VDD
AIF1, AIF2 = VDD
12H/24H, CTR/CLK, INHI, DEMAND = VDD
1.0
V
1.0
V
1.0
V
10
µA
18
mA
Pin Assignment
Configuration and Display Font
4 or 4-1/2-digit segment LED’s are used to display time and frequency in the display font shown below.
Font
Lighting System
Static lighting
Display Range
. Frequency (MW, LW)
. Frequency (FM)
. Clock (12-hour)
. Clock (24-hour)
000 kHz to 1999 kHz (The highest-order digit ‘‘0’’ is blanked out.)
00.00 MHz to 199.95 MHz (The highest-order digit ‘‘0’’ is blanked out.)
PM 12:00 to PM 11:59 → 12:00 to 11:59
↑
0:00 to 23:59 (The highest-order digit ‘‘0’’ is blanked out.)
Pin Description
. a to g, PM, b&e: LED driver pin
No. 1511- 3/10