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.
CMOS IC
Single-Chip PLL and Microcontroller
with LCD Driver
Ordering number:ENN3802A
LC7233
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Overview
The LC7233 is a single-chip microcontroller that incorporates a phase-locked loop (PLL), which can operate up to
150MHz, and a liquid-crystal display (LCD) driver, making it ideal for digital tuners. It has a large number of input/
output ports and a frequency measurement circuit.
The LC7233 freatures on-chip RAM and ROM, a programmable high-speed divider, a 6-bit analog-to-digital con v erter
and a low-voltage detection reset circuit.
The LC7233 operates from a single 5V supply and is available in 64-pin QIPs.
Features
• 150 MHz phase-locked loop.
• LCD driver.
• 6-bit analog-to-digital converter.
• Two 8-bit PWM digital-to-analog converters.
• Two 4-bit input ports.
• Two 4-bit input/output ports.
• 6-bit keypad matrix scan output.
• 2-bit open-drain high-voltage output.
• 23 mask-selectable output drivers.
• 20-bit universal counter.
• 4096 × 16-bit program ROM (000H to FFFH user-ad-
dressable memory).
• 256 × 4-bit data RAM.
• Low-voltage detection reset circuit.
• Programmable high-speed divider.
• Single-word instructions.
• Four-level stack.
• PLL-unlocked flip-flop.
• Timer flip-flop.
• Programmable watchdog interrupt address.
• Standby mode.
• CPU operates down to 3.5V, with data retention down to
1.3V.
• Single 5V supply.
• 64-pin QIP.
Package Dimensions
unit:mm
3159-QIP64E
[LC7233]
17.2
14.0
0.8
0.35
15.6
17.2
1.6
14.0
1.0
48
1.0
49
0.8
64
1.0
1
Pin Assignment
1.6
1.0
33
32
17
16
0.8
0.15
0.1
3.0max
2.7
SANYO : QIP64E
Top view
71901TN (KT)/6291JN/1201JN No.3802–1/12
Block Diagram
LC7233
No.3802–2/12
Pin Description
rebmuNemaNtiucrictnelaviuqEnoitpircseD
1NIX
46TUOX
LC7233
snoitcennocrotallicsolatsyrC
22TSET
361TSET
6ot30GPot3GPGtroptupnI
8,70HP,1HPHtroptuptuO
21ot90FPot3FPFtroptuptuo/tupnI
61ot310EPot3EPEtroptuptuo/tupnI
sniptseT
81,710CP,1CPCtroptuptuO
22ot910BPot3BPBtroptuptuO
62ot320APot3APAtroptupnI
94ot721Sot32SstuptuotnemgesDCL
Continued on next page.
No.3802–3/12
Continued from preceding page.
rebmuNemaNtiucrictnelaviuqEnoitpircseD
15,051MOC,2MOCstuptuorevirdnommocDCL
25DLOHtupnilortnocedom-dloH
55SNStcetedliaf-rewoP
35IDAtupniretrevnocD/A
LC7233
45RTCHtupniretnuoclasravinU
65V
75NIMFtupniOCVMF
85NIMAtupniOCVMA
95V
06OEtuptuorotarapmocesahP
16NIAtupnigolanA
DD
SS
ylppusV5
dnuorG
26TUOAtuptuogolanA
No.3802–4/12
LC7233
Specifications
Absolute Maximum Ratings
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppuSV
egatlovtupniSNSdnaIDA,DLOH,GtroPV
)stupnirehto(egatlovtupnIV
egatlovtuptuoTUOAdnaHtroPV
)stuptuorehtolla(egatlovtuptuOV
tnerructuptuoHtroPI
tnerructuptuoFdnaEstroPI
tnerructuptuoCdnaBtsroPI
tnerructuptuoTUOAI
noitapissidrewopelbawollAxamdP004Wm
erutarepmetgnitarepOrpoT–58+ot04
erutarepmetegarotSgtsT–521+ot54
Reommended Operating Conditions at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppuSV
)UPCdnaLLP(egnaregatlovylppuSV
)UPC(egnaregatlovylppuSV
noitneteratadrofegnaregatlovylppuSV
xam–5.6+ot3.0V
DD
1NI
2NI
1TUO
2TUO
1TUO
2TUO
3TUO
4TUO
DD
1DD
2DD
3DD
–31+ot3.0V
–Vot3.0
–51+ot3.0V
–Vot3.0
3.0+
DD
DD
V
3.0+
V
5ot0
Am
3ot0
Am
1ot0
Am
2ot0
Am
˚C
˚C
5V
5.5ot5.4V
5.5ot5.3V
5.5ot3.1V
Electrical Characteristics at Ta = –40 to +85˚C, VDD = 3.5 to 5.5V, unless otherwise noted
2. Ports A to H, S1 to S23, COM1 and COM2 are open.
No.3802–6/12
LC7233
Standby Mode
Note
Ports A to H, S1 to S23, COM1 and COM2 are open.
Functional Description
LCD Driver
The LC7233 can drive LCD segments. The LCP and LCD instructions transfer data to the LCD outputs. The LCD
instruction transfers data directly to the LCD outputs. The LCP instruction converts data to 7-segment format before
transfer to the outputs.
S1 to S23 are the driver outputs. The LCD frame rate is 100Hz with a 50% duty cycle. After reset or power-up, a blank
signal is present on all outputs. In standby mode, all outputs are LOW. They can be used as general-purpose outputs if
the appropriate mask option is selected.
COM1 and COM2 are the LCD common driver outputs. Output drive is 50% duty with 50% bias. Upon reset or after
power-up, the normal drive signals are present on these outputs. In standby mode, all outputs are LOW.
Frequency Counter
Frequency measurement is performed at the HCTR input by the 20-bit universal counter. The input frequency range is
0.4 to 12MHz, which is used for measuring AM and FM IF frequencies. Capacitive coupling should be used.
Phase-Locked Loop
The FMIN or AMIN input signal is divided down by a programmable divider, and then compared with the crystal
frequency, which is also divided down using 14 selectable ratios. The phase difference between the two signals is
measured using a phase detector and output on EO.
FMIN is the input pin for the FM VCO input signal. The input frequency range is 10 to 130MHz. Capacitive coupling
should be used.
AMIN is the AM VCO input. The bandwidth is adjustable in two ranges by using the PLL instruction-HIGH (2 to
40MHz) for the SW band, and LOW (0.5 to 10MHz), for the LW and MW bands. Capacitive coupling should be used.
Input/Output Ports
Port A
This input port has a low switching threshold, which is used for keypad matrix inputs. Pull-down resistors for all pins
are available as a mask option. Note that either all or none of the pins should have pull-down resistors. In standby
mode, inputs are ignored.
Ports B and C
These output ports have unbalanced CMOS outputs which are used as keypad matrix scan outputs. Upon reset, outputs
are set LOW, and in standby mode, outputs are high impedance. The outputs can be short-circuited.
Port E
The transfer direction of this input/output port is selected automatically under software control. When an input instruction (IN, TPT, or TPF) is executed, port E is configured for input operation, and an output instruction (OUT, SPB or
RPB), for output operation. Upon reset, all pins become inputs. In standby mode, the output drivers are high impedance and the input signals are ignored. All bits should either be inputs or outputs.
No.3802–7/12
LC7233
Port F
The transfer direction of this input/output port is selected by the FPC instruction. Each pin of this port can be set
independently to be an input or an output. Upon reset, all pins become inputs. In standby mode, the output drivers are
high impedance and the input signals are ignored.
Port G
This is an input port only. In standby mode, inputs are ignored.
Port H
These output ports are high-voltage, n-channel open-drain drivers, which are used for switching power supplies. Upon
reset and in standby mode, outputs are high impedance. Port H can also be configured as the output of DACI and
DAC2.
A/D Converter
The A/D converter is a 6-bit successive approximation type. The conversion cycle time is 1.28 ms. Full-scale output
data is 3FH for an input of VDD × (63/96).
Power-Fail Detection
When connected to the supply, SNS is used as a power-fail detector. SNS can also be used as a standard input port.
Crystal Oscillator
The master crystal oscillator, which has a feedback resistor on-chip, requires only the connection of a 4.5 MHz crystal.
Low-Power Modes
Hold Mode
When the hold-mode control pin, HOLD, is driven LOW and the HOLDEN (hold enable) flip-flop has previously been
set by an SS instruction, the LC7233 enters hold mode.
HOLD has a high-voltage input (VIH(max) = 8.0V) which can be connected directly to the power supply.
Standby Mode
When the LC7233 is in hold mode and HOLD is LOW, standby mode can be set by the CKSTP instruction.
Test Pins
Two device test pins are provided-TEST1 and TEST2. These should either be tied to VSS or left open.
Instruction Set
ADDRProgram memory address [12 bits]
bBorrow
BBank number [2 bits]
CCarry
DHData memory address high-order bits (row address) [2 bits]
DLData memory address low-order bits (column address) [4 bits]
IImmediate data [4 bits]
MData memory address
NBit position [4 bits]
PnPort number [4 bits]
rGeneral register (Bank 00H to 0FH)
RnRegister number [4 bits]
( )Contents of register or memory
( )nContents of bit N of register or memory
The LC7223 development environment is shown in figure 1. It uses an LC72EV32 evaluation chip mounted on a TB72EV32 target board and a multifunctional emulator (RE32), which is controlled by a personal computer, to provide
full debugging facilities.
seY
oN
seY
oN
sµ76.2
sµ33.31
sµ00.04
troptuptuorevirdDCL
troptuptuoesoprup-lareneG
Figure 1. Development system
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer's products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products(including technical data,services) described or
contained herein are controlled under any of applicable local export control laws and regulations,
such products must not be exported without obtaining the export license from the authorities
concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co. , Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification"
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
This catalog provides information as of July, 2001. Specifications and information herein are subject to
change without notice.
PS No.3802–12/12
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