Ordering number : ENN8011A
LC723781N
LC723782N
LC723783N
LC723784
LC723785
Overview
CMOS IC
Electronic tuning system for car audio
ETR Microcontrollers
The LC723780 Series are large-capacity ETR microcontrollers that can support up to 128KB of ROM and up to 8KB of
RAM. In addition to the expanded table reference instruction to support large-capacity program ROM, the LC723780
Series provide enhanced interrupt capability to directly control CD mechanism and CD-DSP, and the capability to
support the RDS models. They also have a built-in serial I/O port and an 8-input 8-bit A/D converter for communicating
with the internal and external devices, and for minimizing the connecting wire between the front panel board and the
main board, particularly for car audio systems.
The on-chip high-performance PLL circuit provides a high-speed lock circuit used to search for alternative frequencies of
RDS in a short time, the ability to control the C/N characteristics of a local oscillator, and the high S/N through the direct
PLL configuration.
Functions
•
ROM
•
RAM
: Up to 64K steps (65,535×16-bits)
The subroutine area holds 4K steps (4,096×16-bits)
: Up to 16K×4-bits (In banks 00 through FF)
LC723781N-ROM : 40KB, RAM : 2KB
LC723782N-ROM : 48KB, RAM : 2KB
LC723783N-ROM : 64KB, RAM : 4KB
LC723784-ROM : 96KB, RAM : 6KB
LC723785-ROM : 128KB, RAM : 8KB
: 32levels
•
Stack
Any and all SANYO Semiconductor 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 Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor 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 Semiconductor
products described or contained herein.
92706 / 80505HKIM B8-9065,9068,9069,8420,8219 / 91004JOIM No.8011-1/14
LC723781N/723782N/723783N/723784/723785
•
Serial I/O
: Three channels. These circuits can support both 2-wire and 3-wire 8-bit communication
techniques, and can be switched between MSB first and LSB first operation.
One of six internally generated serial transfer clock rates can be selected: 12.5kHz,
37.5kHz, 187.5kHz, 281.25kHz, 375kHz, and 450kHz
: Seven interrupt inputs (pins INT0 through INT5, and the HOLD pin)
These interrupts can be set to switch between rising and falling edges, although the
HOLD pin only supports falling edge detection.
: Seven interrupts ; four internal timer interrupts, and three serial I/O interrupts.
•
External interrupts
•
Internal interrupts
Functions (Continued)
: 16 levels
Interrupts are prioritized in hardware as follows :
HOLD pin>INT0 pin>INT1 pin>INT2 pin>INT3 pin>INT4 pin>INT5 pin>
S-I/O0>S-I/O1>S-I/O2>Internal TMR0>Internal TMR1>Internal TMR2>
Internal TMR3
•
A/D Converter
: 8-bit resolution and 8 inputs
•
General-purpose ports
: Input ports : 13
Output ports : 4
I/O ports : 62 (These pins can be switched between input and output in 1-bit units.)
•
PLL block
: Includes a sub-charge pump for high-speed locking.
Supports dead zone control.
Built-in unlock detection circuit
Twelve reference frequencies : 1kHz, 3kHz, 3.125kHz, 5kHz, 6.25kHz, 9kHz,
10kHz, 12.5kHz, 25kHz, 30kHz, 50kHz, and 100kHz
•
Universal counter
: This 20-bit counter can be used for either frequency or period measurement and
supports four measurement (calculation) periods : 1ms, 4ms, 8ms, and 32ms
•
Timers
: Two fixed timers and two programmable timers (8-bit counters)
TMR0
: Supports four periods : 10µs, 100µs, 1ms, and 5ms
TMR1
: Supports four periods : 10µs, 100µs, 1ms, and 10ms
TMR2 and TMR3 : Programmable 8-bit counters.
Input clocks with 10µs, 100µs, and 1ms
One 125-ms timer flip-flop provided
•
Beep circuit
: Provides 12 fixed beep tones :
500Hz, 1kHz, 2kHz, 2.08kHz, 2.2kHz, 2.5kHz, 3kHz, 3.125kHz, 3.33kHz,
3.75kHz, 4.17kHz, and 7.03kHz
Programmable 8-bit beep tone generator.
Reference clocks with frequencies of 50kHz, 15kHz, and 5kHz.
•
Reset
: Built-in voltage detection reset circuit
External reset pin
•
Cycle time
: 1.33µs/833ns (All instructions are one word), X’tal : 4.5MHz/7.2MHz
Supports software switching (Initial cycle time is 1.33µs)
•
Halt mode
: The microcontroller operating clock is stopped in Halt mode.
There are four conditions that can clear Halt mode : Interrupt requests,
timer flip-flop overflows, port PA inputs, and HOLD pin inputs.
•
Operating supply voltage : 4.5 to 5.5V (Microcontroller block only : 3.5 to 5.5V)
•
Package
: QIP100E
•
OTP version
: LC72F3781
•
Development tools
: Emulator
: RE128V
Evaluation chip
: LC72EV3780
Evaluation board
: EB-72EV3780
•
Interrupt nesting levels
No.8011-2/14
LC723781N/723782N/723783N/723784/723785
Specifications
Absolute Maximum Ratings
at Ta = 25°C VSS = 0V
Parameter
Maximum supply voltage
Input voltage
Symbol
VDD max
VIN1
VIN2
Output voltage
VOUT1
VOUT2
VOUT3
Output current
IOUT1
IOUT2
Allowable power dissipation
Operating temperature
Storage temperature
Pd max
Topr
Tstg
PC-PORT
All input pins other than VIN1
PJ-PORT
PC-PORT
All input pins other than VOUT1 and VOUT2
PC, PJ-PORT
PB, PD, PE, PF, PG, PK, PL, PM, PN, PO, PP PQ,
PR, PS, PT-PORT, EO1, EO2, SUBPD
Ta = -40 to +85
°C
Conditions
Ratings
-0.3 to +6.5
-0.3 to +8
-0.3 to VDD+0.3
-0.3 to +14
-0.3 to +8
-0.3 to VDD+0.3
0 to +5
0 to +3
400
-40 to +85
-40 to +125
Unit
V
V
V
V
V
V
mA
mA
mW
°C
°C
Allowable Operating Range
at Ta = -40 to +85°C, VDD = 3.5 to 5.5V
Parameter
Supply voltage
Symbol
VDD1
VDD2
VDD3
Input high-level
voltage
VIH2
VIH3
VIH4
Input low-level voltage
VIL1
VIH1
CPU and PLL operation
CPU operation
Memory retention
PB, PC, PH, PI, PL, PM, PN, PP, PO, PQ, PR, PS,
PT-PORT, HCTR, LCTR, INEO, SUBPD
(with the I/O ports set to input mode)
PD, PE, PF, PG, PK-PORT, LCTR
(in period measurement mode), HOLD, RESET
SNS
PA-PORT
PB, PC, PH, PI, PL, PM, PN, PP, PO, PQ, PR, PS,
PT-PORT, HCTR, LCTR, INEO, SUBPD
(with the I/O ports set to input mode)
VIL2
VIL3
VIL4
Input frequency
FIN1
FIN2
FIN3
FIN4
FIN5
FIN6
FIN7
FIN8
Input amplitude
VIN1
VIN2
VIN3
Input voltage range
VIN6
PA, PD, PE, PF, PG, PK-PORT, LCTR
(in period measurement mode), RESET
SNS
HOLD
XIN
FMIN : VIN2, VDD1
FMIN : VIN3, VDD1
AMIN(H) : VIN3, VDD1
AMIN(L) : VIN3, VDD1
HCTR : VIN3, VDD1
LCTR : VIN3, VDD1
LCTR (in period measurement) : VIH2, VIL2, VDD1
XIN
FMIN
FMIN, AMIN, HCTR, LCTR
ADI0 to ADI7
0
0
0
4.0
10
10
2.0
0.5
0.4
100
1
0.5
0.07
0.04
0
4.5
0.2VDD
1.1
0.4VDD
8.0
150
130
40
10
12
500
20×10
3
Pins
min
4.5
3.5
1.1
0.7VDD
Ratings
typ
5.0
mx
5.5
5.5
5.5
VDD
uit
V
V
0.8VDD
2.5
0.6VDD
0
VDD
VDD
VDD
0.3VDD
V
V
V
V
V
V
V
MHz
MHz
MHz
MHz
MHz
MHz
kHz
Hz
Vrms
Vrms
Vrms
V
1.5
1.5
1.5
VDD
No.8011-3/14
LC723781N/723782N/723783N/723784/723785
Electrical Characteristics
in the allowable operating ranges
Parameter
Input high-level current
Symbol
IIH1
IIH2
IIH3
XIN : VI = VDD = 5.0V
FMIN, AMIN, HCTR, LCTR : VI = VDD = 5.0V
PA, PB, PC, PD, PE, PF, PG, PH, PI, PK, PL, PM, PN, PO,
PP, PQ, PR, PS, PT-PORT, SNS, HOLD, RESET, HCTR,
LCTR, INEO, SUBPD : VI = VDD = 5.0V
(with the ports PB, PC, PD, PE, PF, PG, PK, PL, PM, PN,
PP, PO, PQ, PR, PS, and PT-PORT set to input mode)
Input low-level current
IIL1
IIL2
IIL3
XIN : VI = VDD = VSS
FMIN, AMIN, HCTR, LCTR : VI = VDD = VSS
PA, PB, PC, PD, PE, PF, PG, PH, PI, PK, PL, PM, PN, PO,
PP, PQ, PR, PS, PT-PORT, SNS, HOLD, RESET, HCTR,
LCTR, INEO, SUBPD : VI = VSS
(with the ports PB, PC, PD, PE, PF, PG, PK, PL, PM, PN,
PP, PO, PQ, PR, PS, and PT-PORT set to input mode)
Hysteresis
Output high-level voltage
VH
VOH1
VOH2
VOH3
Output low-level voltage
VOL1
VOL2
VOL3
VOL4
Output off leakage
current
IOFF2
IOFF3
A/D conversion error
Rejected pulse width
Power down detection
voltage
Power supply current
IDD1
IDD2
IDD3
IDD4
IDD5
IDD6
VDD1 : FIN2 = 130MHz Ta = 25°C, X’tal : 4.5MHz
VDD1 : FIN2 = 130MHz Ta = 25°C, X’tal : 7.2MHz
VDD2 : Halt mode Ta = 25°C, X’tal : 4.5 MHz
VDD2 : Halt mode Ta = 25°C, X’tal : 7.2MHz
Backup mode (OSC stopped)
VDD = 5.5V, Ta = 25°C
Backup mode (OSC stopped)
VDD = 2.5V, Ta = 25°C
*2 (Fig. 2)
*2 (Fig. 2)
*1 (Fig. 1)
PREJ1
VDET
IOFF1
PD, PE, PF, PG, PK-PORT, RESET, LCTR
(in period measurement)
PB, PD, PE, PF, PG, PK, PL, PM, PN, PO, PP, PQ, PR,
PS, PT-PORT : IO = -1mA
EO1, EO2, SUBPD : IO = -500µA
XOUT : IO = -200µA
PB, PD, PE, PF, PG, PK, PL, PM, PN, PO, PP PQ, PR,
PS, PT-PORT : IO = -1mA
EO1, EO2, SUBPD : IO = -500µA
XOUT : IO = -200µA
PC, PJ-PORT : IO = -5mA
PB, PD, PE, PF, PG, PK, PL, PM, PN, PO, PP, PQ, PR,
PS, PT-PORT
EO1, EO2, SUBPD
PC, PJ-PORT
ADI0 to ADI7
SNS
2.7
3.0
5
5.5
0.45
0.55
5
1
-3
-100
-5
-1.5
0.1VDD
VDD-1.0
VDD-1.0
VDD-1.0
1.0
1.0
1.5
2.0
3
100
5
+1.5
50
3.3
10
11
0.2VDD
V
V
V
V
V
V
V
V
µA
nA
µA
LSB
µs
V
mA
mA
mA
mA
µA
µA
3
µA
2.0
4.0
5.0
10
15
30
µA
µA
3
µA
Pins
min
2.0
4.0
Ratings
typ
5.0
10
max
15
30
µA
µA
unit
*1
: Twenty instruction steps are executed every millisecond. The PLL, universal counter, and other functions are stopped.
No.8011-4/14
LC723781N/723782N/723783N/723784/723785
Test Circuits
Figure 1. IDD2 in Halt Mode
Figure 2. IDD3 and IDD4 in Backup Mode
Package Dimensions
unit : mm
3151A
No.8011-5/14
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
