SANYO LC72345W, LC72344W Datasheet

Ordering number : ENN6171

31000RM (OT) No. 6171-1/13

Overview

The LC72344W and LC72345W are low-voltage electronic tuning microcontrollers that include a DC-DC converter, a PLL that operates up to 230 MHz, a 1/4 duty 1/2 bias LCD driver and other functions on chip. The built-in DC-DC converter provided by these ICs can easily implement a tuning system voltage generator circuit, and furthermore, since the transistor required for the low-pass filter is built in, these ICs can contribute to further end product cost reductions. Additionally, the DC-DC converter output voltage can be provided to other external ICs, making these products optimal for low-voltage portable audio equipment that includes a radio receiver.

Functions

• Program memory (ROM): 3072 × 16 bits (6 KB)

LC72344W 4096 × 16 bits (8 KB) LC72345W

• Data memory (RAM): 192 × 4 bits LC72344W 256 × 4 bits LC72345W

• Cycle time: 40 µs (all 1-word instructions)

• Stack: 8 levels

• LCD driver: 48 to 76 segments (1/4 duty, 1/2 bias drive)

• Interrupts: One external interrupt

Timer interrupts (1, 5, 10, and 50 ms)

• A/D converter: Two input channels (5-bit successive

approximation conversion)

• Input ports: 6 ports (of which 2 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 opendrain ports)

• I/O ports: 16 ports (of which 8 can be switched for use

as LCD ports as mask options)

(Continued on next page.)

LC72344W, 72345W

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

Low-Voltage ETR Controller with On-Chip DC-DC

Converter

CMOS IC

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.

Package Dimensions

unit: mm

3190-SQFP64

10.0

12.0

1.25

0.51.25

1.25 0.5 1.250.18

12.0

116

10.0

0.5

1.7max

0.5

0.1

0.15

SANYO: SQFP64

[LC72344W, 72345W]

(Continued from preceding page.)

• PLL: Supports dead band control (two types)

Reference frequencies: 1, 3, 5, 6.25, 12.5, and 25 kHz

• Input frequencies: FM band: 10 to 230 MHz

AM band: 0.5 to 10 MHz

• Input sensitivity: FM band: 35 mV rms (50 mV rms at

130 MHz or higher frequency) AM band: 35 mV rms

• External reset input: During CPU and PLL operation,

instruction execution is started from location 0.

• Built-in power-on reset circuit:

The CPU starts executing from location 0 when power is first applied.

• Static power-on function: Backup state clear function

using the BATT pin.

• Halt mode: The controller operating clock is stopped.

• Backup mode: The crystal oscillator is stopped.

• Beep tone: 1.5 and 3.1 kHz

• Built-in DC-DC converter:

Two systems (One system can be used as an external circuit power supply by providing an external transistor.)

• Built-in low-pass filter amplifier: An external low-pass filter amplifier circuit is no longer required in end products.

• Remaining power check function: The battery voltage can be directly converted to a digital value by the A/D converter.

• Memory retention voltage: 0.9 V or higher.

•VDDvoltage: 0.9 to 1.8 V

• Package: SQFP-64 (0.5 mm lead pitch)

No. 6171-2/13

LC72344W, 72345W

LC72344W LC72345W

XIN

TEST1

AGND

AOUT

AIN

VSS

AMIN

FMIN

VDD

BRES

COM1

COM3

COM2S1COM4

XOUT

TEST2

PA3

PA2

PA1

PA0

PB3

PB2

PB1

PB0

PC3

PD3

PC2

PC1

PC0

PD2

PD1

PG2/S18

S12/PH0

S11

S10

S13/PH1

S15/PH3

S14/PH2

S17/PG1

(Top view)

S16/PG0

PE1

INT/PD0

BEEP/PE0

BATT

ADI0/PF0

ADI1/PF1

VDC1

VDC3

VSS

VDC2

VREF

VCON

VADJ

PG3/S19

Pin Assignment

No. 6171-3/13

LC72344W, 72345W

Parameter Symbol Conditions Ratings Unit

(1)max VDD –0.3 to +0.3 V

Maximum supply voltage

(2)max VDC1 –0.3 to +4.0 V

(3)max VDC2 –0.3 to +4.0 V

(4)max VDC3 –0.3 to +4.0 V

Input voltage

(1) PF, FMIN, AMIN, AIN, BATT, and BRES –0.3 to VDD(3) to +0.3 V

(2) PA, PC, PD, PG, and PH –0.3 to VDD(1) to +0.3 V

OUT

(1) AOUT, and PE –0.3 to +15 V

Output voltage

OUT

(2) PB, PC, PD, PG, and PH –0.3 to VDD(1) +0.3 V

OUT

(3) VREF, and EO –0.3 to VDD(3) +0.3 V

OUT

(4) COM1 to COM4, S1 to S19 –0.3 to VDD(4) +0.3 V

OUT

(1) PC, PD, PG, PH, and EO 0 to 3 mA

OUT

(2) PB 0 to 1 mA

Output current I

OUT

(3) AOUT, and PE 0 to 2 mA

OUT

(4) S1 to S20 300 µA

OUT

(5) COM1 to COM4 3 mA Allowable power dissipation Pdmax Ta = –20 to +70°C 200 mW Operating temperature Topr –20 to +70 °C Storage temperature Tstg –45 to +125 °C

Specifications

Absolute Maximum Ratings at Ta = 25°C, VSS= 0 V

Parameter Symbol Conditions

Ratings

Unit

min typ max

(1) The voltage applied to the VDD pin 0.9 1.5 1.8 V

(2) The voltage applied to the VDC1 pin 0.9 1.5 1.8 V

Supply voltage V

(3) The voltage applied to the VDC2 pin 1.8 2.1 2.4 V

(4) The voltage applied to the VDC3 pin 2.6 3.0 3.4 V

(5) Memory retention voltage 0.9 V

(1) Ports PC, PD, PG, and PH 0.7 VDD(1) VDD(1) V

Input high-level voltage

(2) Port PA 0.8 VDD(1) VDD(1) V

(3) Port PF 0.8 VDD(1) VDD(3) V

(4) Ports BRES and BATT 0.6 VDD(1) VDD(3) V

(1) Ports PC, PD, PG, and PH 0 0.3 VDD(1) V

Input low-level voltage

(2) Port PA 0 0.2 VDD(1) V

(3) Port PF 0 0.2 VDD(1) V

(4) Ports BRES and BATT 0 0.2 VDD(1) V

(1) XIN 0.5 0.6 Vrms

Input amplitude V

(2) FMIN, AMIN: VDD(3) = 2.1 V 0.035 0.35 Vrms

(3) FMIN: VDD(3) = 2.1 V 0.05 0.35 Vrms

Input voltage range V

(4) ADI0, ADI1, and V

(4) V

(1) XIN: CI ≤ 35 kΩ 70 75 80 kHz

Input frequency

(2) FMIN: VIN(2), VDD(3) = 2.1 V 10 130 MHz

(3) FMIN: VIN(3), VDD(3) = 2.1 V 130 230 MHz

(4) AMIN(L): VIN(2), VDD(3) = 2.1 V 0.5 10 MHz

Allowable Operating Ranges at Ta = –20 to +70°C, VDD= 0.9 to 1.8 V

No. 6171-4/13

LC72344W, 72345W

Parameter Symbol Conditions

Ratings

Unit

min typ max

(1) XIN: VDD(1) = 1.8 V, VDD(2) = 1.8 V, VDD(3) = 2.1 V 3 µA

(2) FMIN, and AMIN: VDD(3) = 2.1 V 3 8 20 µA

Input high-level voltage I

(3) Ports BRES, BATT, and PF: VDD(3) = 2.1 V 4 µA

(4)

Ports PA (no pull-down resistor), PC, PD, PG, and PH:

3µA

(1) = 1.8 V

(1) XIN: VDD(1) = VDD(2) = VDD(3) = V

–3 µA

(2) FMIN, and AMIN: VDD(3) = V

–3 –8 –20 µA

Input low-level voltage I

(3) Ports BRES, BATT, and PF: VDD(3) = V

–4 µA

(4)

Ports PA (no pull-down resistor), PC, PD, PG, and PH:

–3 µA

(1) = V

Input floating voltage V

Port PA pull-down resistor present

0.05 VDD(1)

Pull-down resistor

(1) Port PA pull-down resistor: VDD(1) = 1.3 V 75 100 200 kΩ

(2) TEST1 and TEST2 pull-down resistors 10 kΩ

Hysteresis V

BRES 0.1 VDD(3) 0.2 VDD(3) V

(1) PB: IO= 1 mA

(1) – VDD(1) –

0.7 V

(1) 0.3 VDD(1)

(2) PC, PD, PG, PH: IO= 1 mA

(1) –

0.3 V

(1)

(3) EO: IO= –500 µA

(3) –

Output high-level voltage 0.3 V

(3)

(4) XOUT IO= 1 µA

(3) –

0.3 V

(3)

(5) S1 to S20: IO= 20 µA VDD(4) – 1 V

(6) COM1, CM2, COM3, and COM4: IO= 100 µA VDD(4) – 1 V

(7) VREF: IO= 1 mA VDD(3) – 1 V

(1) PB: IO= –50 µA 0.3 VDD(1) 0.7 VDD(1) V

(2) PC, PD, PG, and PH: IO= –1 mA 0.3 VDD(1) V

(3) EO: IO= –500 µA 0.3 VDD(3) V

Output low-level voltage

(4) XOUT: IO= –1 µA 0.3 VDD(3) V

(5) S1 to S20: IO= –20 µA VDD(4)–2 V

(6) COM1, COM2, COM3, and COM4: IO= –100 µA VDD(4)–2 V

(7) PE: IO= 2 mA 0.6 VDD(1) V

(8) AOUT: IO= 1 mA, AIN = 1.3 V: VDD(4) = 3 V 0.5 V

Output off leakage current

OFF

(1) PB, PC, PD, PG, PH, and E0 ports –3 3 µA

OFF

(2) AOUT and PE ports –100 100 nA

A/D converter error ADI0 and ADI1, V

–1/2 +1/2 LSB

Internal clock frequency

fosc(1) FM, and PLLSTOP: V

(3) = 2.1 V, Vcon = OPEN 300 600 900 kHz

fosc(2) AM 450 1200 kHz I

DD1

(1)