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LC72348G Datasheet

  • LC72348G

  • Low-Voltage ETR Controller with On-Chip LCD Driver

  • 14頁(yè)

  • SANYO

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Ordering number : ENN6472
CMOS IC
LC72348G/W, 72349G/W
Low-Voltage ETR Controller
with On-Chip LCD Driver
Overview
The LC72348G/W and LC72349G/W are low-voltage
electronic tuning microcontrollers that include a PLL that
operates up to 230 MHz and a 1/4 duty 1/2 bias LCD
driver on chip. These ICs can contribute to further end
product cost reduction than the LC72341 series while
providing improved standby current characteristics. Also
these ICs can use the application program for the
LC72341 series except the IF counter function.
These ICs are optimal for use in low-voltage portable
audio equipment that includes a radio receiver.
Package Dimensions
unit: mm
3231-QIP64G
[LC72348G, 72349G]
17.2
14.0
0.8 0.35
1.6
1.0
0.15
1.0
48
1.6
1.0
33
32
49
Function
鈥?Program memory (ROM):
鈥?3072
脳
16 bits (6K bytes)
LC72348G/W
鈥?4096
脳
16 bits (8K bytes)
LC72349 G/W
鈥?Data memory (RAM):
鈥?192
脳
4 bits
LC72348 G/W
鈥?256
脳
4 bits
LC72349 G/W
鈥?Cycle time: 40 碌s (all 1-word instructions) at 75kHz
crystal oscillation
鈥?Stack: 8 levels
鈥?LCD driver: 48 to 80 segments (1/4 duty, 1/2 bias drive)
鈥?Interrupts: One external interrupt
Timer interrupts (1, 5, 10, and 50 ms)
鈥?A/D converter: Three input channels
(5-bit successive approximation
conversion)
鈥?Input ports: 7 ports (of which three can be switched for
use as A/D converter inputs)
鈥?Output ports: 6 ports (of which 1 can be switched for use
as the beep tone output and 2 are open-
drain ports)
鈥?I/O ports: 16 ports (of which 8 can be switched for use
as LCD ports and as mask options)
Continued on next page.
17.2
14.0
0.8
17
3.0max
64
1.0
1
16
0.1
2.15
15.6
0.8
SANYO: QFP64G
unit: mm
3190-SQFP64
[LC72348W, 72349W]
12.0
10.0
1.25
48
49
0.5
0.18
1.25
33
32
0.15
12.0
10.0
0.5
1.25
64
17
1
16
0.5
0.1
0.5
1.7max
1.25
SANYO: SQFP64
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft鈥檚
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
32700RM (OT) No. 6472-1/14

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