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Sanyo Electric Components Datasheet

LC72341G Datasheet

Low-Voltage Single-Chip Microcontrollers with On- Chip PLL and LCD Driver Circuits

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Ordering number : EN*5799
Preliminary
CMOS IC
LC72341G/W, LC72342G/W, LC72343G/W
Low-Voltage Single-Chip Microcontrollers with On-
Chip PLL and LCD Driver Circuits
Overview
The LC72341G/W, LC72342G/W, and LC72343G/W are
single-chip microcontrollers with both a 1/4-duty 1/2-bias
LCD driver circuit and a PLL circuit that can operate at up
to 250 MHz integrated on the same chip. These ICs are
ideal for use in portable audio equipment.
Reference frequencies of 1, 3, 5, 6.25, 12.5, and
25 kHz can be provided.
• Input frequency range
— FM band: 10 to 130 MHz
130 to 250 MHz
— AM band: 0.5 to 15 MHz
Functions
• High-speed programmable divider
• Program memory (ROM)
— LC72341G/W: 2048 words × 16 bits (4KB)
— LC72342G/W: 3072 words × 16 bits (6KB)
— LC72343G/W: 4096 words × 16 bits (8KB)
• Data memory (RAM)
— LC72341G/W: 128 words × 4 bits
— LC72342G/W: 192 words × 4 bits
— LC72343G/W: 256 words × 4 bits
• Instruction cycle time
— 40 µs (for all single-word instructions.)
• Stack
— 4 levels (LC72341G/W)
— 8 levels (LC72342G/W, and LC72343G/W)
• LCD driver
— 48 to 80 segments (1/4-duty 1/2-bias drive)
• Timer interrupts
— One timer circuit providing intervals of 1, 5, 10, and
50 ms.
• External interrupts
— One external interrupt (INT)
• A/D converter
— Two channels (5-bit successive approximation)
• Input ports
— 7 (Of which two can be switched to function as A/D
converter inputs)
• Output ports
— 6 (Of which one can be switched to function as the
BEEP tone output. Two ports are open-drain ports.)
• I/O
ports
— 16 (Of which 8 can be selected to function as LCD
ports as mask options.)
• PLL circuit
— Two types of dead band control are supported, and an
unlock detection circuit is included.
Package Dimensions
unit: mm
3159-QFP64G
[LC72341G, 72342G, 72343G]
SANYO: QFP64G
unit: mm
3159-SQFP64
[LC72341W, 72342W, 72343W]
SANYO: SQFP64
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
31398RM (OT) No. 5799-1/12


Sanyo Electric Components Datasheet

LC72341G Datasheet

Low-Voltage Single-Chip Microcontrollers with On- Chip PLL and LCD Driver Circuits

No Preview Available !

LC72341G/W, 72342G/W, 72343G/W
• IF counter
— HCTR input pin; 0.4 to 12 MHz
• Voltage detection circuit (VSENSE)
— Detects the VDD voltage and sets a flag
• External reset pin
— Restarts execution from location 0 when the CPU and PLL circuits are operating
• Power on reset circuit
— Starts execution from location 0 at power on.
• Universal counter
— 20 bits
• Beep tones
— 3.1 and 1.5 kHz
• Halt mode: The microcontroller operating clock is stopped
• Backup mode: The crystal oscillator is stopped
• An amplifier for a low-pass filter is built in
• CPU and PLL circuit operating voltage
— 1.8 to 3.6 V
• RAM data retention voltage
— 1.0 V or higher
• Packages
— QIP-64G : 0.8-mm lead pitch
— SQFP-64 : 0.5-mm lead pitch
Pin Assignment
* PE0 and PE1 are open-drain outputs.
* The I/O ports can be set to input or output individually.
* The functions of the segment/general-purpose ports can be set in bit units.
No. 5799-2/12


Part Number LC72341G
Description Low-Voltage Single-Chip Microcontrollers with On- Chip PLL and LCD Driver Circuits
Maker Sanyo Semicon Device
Total Page 12 Pages
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