LC72346W Datasheet PDF - Sanyo Semicon Device
| Part Number | LC72346W | |
| Description | Ultralow-Voltage ETR Controller with On-Chip LCD Driver | |
| Manufacturers | Sanyo Semicon Device | |
| Logo |  |
|
|
There is a preview and LC72346W download ( pdf file ) link at the bottom of this page. Total 12 Pages | ||
Preview 1 page No Preview Available !
Ordering number : ENN*6651
Preliminary
CMOS IC
LC72346W, 72347W
Ultralow-Voltage ETR Controller
with On-Chip LCD Driver
Overview
The LC72346W and LC72347W are ultralow-voltage
electronic tuning microcontrollers that include a PLL that
operates up to 250 MHz and a 1/4 duty 1/2 bias LCD
driver on chip. This IC includes an on-chip DC-DC
converter that can easily create the power supply voltages
needed for electronic tuning and contribute to reducing
end product costs. This IC is optimal for portable audio
equipment that must operate from a single battery.
Function
• Program memory (ROM):
— 4096 × 16 bits (8K bytes) : LC72346
— 6144 × 16 bits (12K bytes): LC72347
• Data memory (RAM):
— 256 × 4 bits: LC72346
— 512 × 4 bits: LC72347
• Cycle time:
40 µs (all 1-word instructions) at 75kHz crystal oscillation
• Stack: 8 levels
• LCD driver: 48 to 80 segments (1/4 duty, 1/2 bias drive)
• Interrupts: Two external interrupts
Timer interrupts (1, 5, 10, and 50 ms)
• A/D converter:
Four input channels (6-bit successive approximation
conversion)
• Input ports: 7 ports (of which three can be switched for
use as A/D converter inputs)
• Output ports: 6 ports (of which 1 can be switched for use
as the beep tone output and 2 are open-drain ports)
• I/O ports: 20 ports (of which 8 can be switched for use
as LCD ports and as mask options, of which 3 can be
switched for use as serial I/O ports)
• Serial I/O: One system (LC72347)
• PLL: Reference frequencies:
1, 3, 3.125, 5, 6.25, 12.5, and 25 kHz
• Input frequencies: FM band: 10 to 250 MHz
AM band (high): 2 to 20 MHz
AM band (low): 0.5 to 10 MHz
• Input sensitivity:
FM band: 35 mVrms (50 mVrms at 130 MHz or higher
frequency)
AM band (high, low): 35 mVrms
• External reset input: During CPU and PLL operations,
instruction execution is started from location 0.
• Built-in power-on reset circuit:
The CPU starts execution from location 0 when power is
first applied.
• Halt mode: The controller-operating clock is stopped.
Continued on next page.
Package Dimensions
unit: mm
3190-SQFP64
[LC72346W, 72347W]
12.0
10.0
1.25 0.5 0.18
48
49
1.25
33
0.15
32
64
1
17
16
0.5 0.5
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’s
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
N1501TN (OT) No. 6651-1/12
|
| |
 
LC72346W, 72347W
*1. Halt and PLL STOP mode current test circuit
*2. Backup mode current test circuit
7 pF
A
75 kHz
7 pF
XOUT VDD RES
XIN
PA, PF, PK
VSS
FMIN
AMIN
VDC3
VADJ
TEST1, 2
7 pF
75 kHz
A
XOUT VDD RES
XIN
7 pF
3V
VSS
FMIN
AMIN
VDC3
VADJ
TEST1, 2
3V
With all ports other than those specified above left open.
With output mode selected for PC and PD.
With segments S13 to S20 selected.
With all ports other than those specified above left open.
With output mode selected for PC and PD.
With segments S13 to S20 selected.
DC-DC Converter Application
VADJ
VDC3
VDDRAM
VDC1
VSS
VDD
No. 6651-5/12
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LC72346W electronic component. |
| Information | Total 12 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ LC72346W.PDF Datasheet ] | |
Share Link :
Electronic Components Distributor
|
An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists. |
| SparkFun Electronics | Allied Electronics | DigiKey Electronics | Arrow Electronics |
| Mouser Electronics | Adafruit | Newark | Chip One Stop |
Featured Datasheets
| Part Number | Description | MFRS |
| LC72346 | The function is Ultralow-Voltage ETR Controller with On-Chip LCD Driver. Sanyo Semicon Device | |
| LC723461W | The function is (LC723461W / LC723462W) Ultralow-Voltage ETR Controller. Sanyo Semicon Device | |
| LC723462W | The function is (LC723461W / LC723462W) Ultralow-Voltage ETR Controller. Sanyo Semicon Device | |
Semiconductors commonly used in industry:
1N4148 |
BAW56 |
1N5400 |
NE555 | | ||
Quick jump to:
LC72
1N4
2N2
2SA
2SC
74H
BC
HCF
IRF
KA | ||