Ordering number : EN*A0965
LC877696B,LC877680B
LC877664B,LC877648B
Overview
CMOS IC
Internal 96K/80K/64K/48K-byte ROM
4096-byte RAM
8-bit 1-chip Microcontroller
The LC877600B series are an 8-bit microcomputer that, centered around a CPU running at a minimum bus cycle time of
83.3ns, integrates on a single chip a number of hardware features such as 96K-48Kbyte ROM, 4K-byte RAM, an LCD
controller/driver, a sophisticated 16-bit timer/counter (may be divided into 8-bit timers), a 16-bit timer (may be divided
into 8-bit timers or 8-bit PWMs), four 8-bit timers with a prescaler, a base timer serving as a time-of-day clock, a day
and time counter, a synchronous SIO interface (with automatic block transmission/reception capabilities), an
asynchronous/synchronous SIO interface, a UART interface (full duplex), a 12-bit 12-channel AD converter, two 12-bit
PWM channels, a high-speed clock counter, a system clock frequency divider, a small signal detector, an infrared remote
controller receiver function, and a 23-source 10-vector interrupt feature.
Features
ROM
•
98304
×
8bits (LC877696B)
•
81920
×
8bits (LC877680B)
•
65536
×
8bits (LC877664B)
•
49152
×
8bits (LC877648B)
RAM
•
4096
×
9 bits
Minimum Bus Cycle Time
•
83.3ns (12MHz)
VDD=3.0 to 5.5V (target value)
•
125ns (8MHz)
VDD=2.5 to 5.5V (target value)
•
250ns (4MHz)
VDD=2.2 to 5.5V (target value)
•
30.5μs (32.768kHz) VDD=1.7 to 5.5V (target value)
Note: The bus cycle time here refers to the ROM read speed.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. 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.
Ver.0.010
61808HKIM No.A0965-1/25
LC877696B/80B/64B/48B
Minimum Instruction Cycle Time (tCYC)
•
250ns (12MHz)
VDD=3.0 to 5.5V (target value)
•
375ns (8MHz)
VDD=2.5 to 5.5V (target value)
•
750ns (4MHz)
VDD=2.2 to 5.5V (target value)
•
91.5μs(32.768kHz) VDD=1.7 to 5.5V (target value)
Ports
•
Normal withstand voltage I/O ports
Ports whose I/O direction can be designated in 1-bit units
Ports whose I/O direction can be designated in 4-bit units
•
Normal withstand voltage input port
•
LCD ports
Segment output
Common output
Bias terminals for LCD driver
Other functions
Input/output ports
Input ports
•
Dedicated oscillator ports
•
Reset pins
•
Power pins
23 (P1n, P30 to P31, P70 to P73, P8n, XT2)
8 (P0n)
1 (XT1)
32 (S00 to S31)
4 (COM0 to COM3)
3 (V1 to V3)
32 (PAn, PBn, PCn, PDn,)
7 (PLn)
2 (CF1, CF2)
1 (RES)
6 (VSS1 to VSS3, VDD1 to VDD3)
LCD Controller
1) Seven display modes are available (static, 1/2, 1/3, 1/4 duty
×
1/2, 1/3 bias)
2) Segment output and common output can be switched to general-purpose input/output ports
Small Signal Detection (MIC signals etc)
1) Counts pulses with the level which is greater than a preset value
2) 2-bit counter
Timers
•
Timer 0: 16-bit timer/counter with capture registers.
Mode 0: 8-bit timer with an 8-bit programmable prescaler (with 8-bit capture registers)
×
2 channels
Mode 1: 8-bit timer with an 8-bit programmable prescaler (with 8-bit capture registers)
+ 8-bit counter (with 8-bit capture registers)
Mode 2: 16-bit timer with an 8-bit programmable prescaler (with 16-bit capture registers)
Mode 3: 16-bit counter (with 16-bit capture registers)
•
Timer 1: 16-bit timer that supports PWM/toggle outputs
Mode 0: 8-bit timer with an 8-bit prescaler (with toggle outputs)
+ 8-bit timer with an 8-bit prescaler (with toggle outputs)
Mode 1: 8-bit PWM with an 8-bit prescaler
×
2 channels
Mode 2: 16-bit timer with an 8-bit prescaler (with toggle outputs)
(toggle outputs also possible from the lower-order 8 bits)
Mode 3: 16-bit timer with an 8-bit prescaler (with toggle outputs)
(The lower-order 8 bits can be used as PWM.)
•
Timer 4: 8-bit timer with a 6-bit prescaler
•
Timer 5: 8-bit timer with a 6-bit prescaler
•
Timer 6: 8-bit timer with a 6-bit prescaler (with toggle output)
•
Timer 7: 8-bit timer with a 6-bit prescaler (with toggle output)
•
Base timer
1) The clock is selectable from the subclock (32.768kHz crystal oscillation), system clock,
and timer 0 prescaler output.
2) Interrupts programmable in 5 different time schemes
•
Day and time counter
1) Used with a base timer, the day and time counter can be used as a 65000 day + minute + second counter.
No.A0965-2/25
LC877696B/80B/64B/48B
High-speed Clock Counter
1) Can count clocks with a maximum clock rate of 20MHz (at a main clock of 10MHz).
2) Can generate output real-time.
SIO
•
SIO0: 8-bit synchronous serial interface
1) LSB first/MSB first mode selectable
2) Built-in 8-bit baudrate generator (maximum transfer clock cycle = 4/3 tCYC)
3) Automatic continuous data transmission (1 to 256 bits specifiable in 1-bit units, suspension and resumption of
data transmission possible in 1-byte units)
•
SIO1: 8-bit asynchronous/synchronous serial interface
Mode 0: Synchronous 8-bit serial I/O (2- or 3-wire configuration, 2 to 512 tCYC transfer clocks)
Mode 1: Asynchronous serial I/O (half-duplex, 8-data bits, 1-stop bit, 8 to 2048 tCYC baudrates)
Mode 2: Bus mode 1 (start bit, 8-data bits, 2 to 512 tCYC transfer clocks)
Mode 3: Bus mode 2 (start detect, 8-data bits, stop detect)
UART
•
Full duplex
•
7/8/9 bit data bits selectable
•
1 stop bit (2-bit in continuous data transmission)
•
Built-in baudrate generator
AD Converter: 12 bits
×
12 channels
PWM: Multi frequency 12-bit PWM
×
2 channels
Infrared Remote Control Receiver Circuit
1) Noise reduction function
(Time constant of noise reduction filter: approx. 120μs, when selecting a 32.768kHz crystal oscillator as a
reference clock.)
2) X’tal HOLD mode cancellation function
Watchdog Timer
•
External RC watchdog timer
•
Interrupt and reset signals selectable
Clock Output Function
1) Can output selected oscillation clock 1/1, 1/2, 1/4, 1/8, 1/16, 1/32,or 1/64 as system clock.
2) Can output the source oscillation clock for the sub clock.
No.A0965-3/25
LC877696B/80B/64B/48B
Interrupts Source Flags
•
23 sources, 10 vector addresses
1) Provides three levels (low (L), high (H), and highest (X)) of multiplex interrupt control. Any interrupt requests of
the level equal to or lower than the current interrupt are not accepted.
2) When interrupt requests to two or more vector addresses occur at the same time, the interrupt of the highest
level takes precedence over the other interrupts. For interrupts of the same level, the interrupt into the smallest
vector address takes precedence.
No.
1
2
3
4
5
6
7
8
9
10
Vector Address
00003H
0000BH
00013H
0001BH
00023H
0002BH
00033H
0003BH
00043H
0004BH
Level
X or L
X or L
H or L
H or L
H or L
H or L
H or L
H or L
H or L
H or L
INT0
INT1
INT2/T0L/remote control receiver
INT3/base timer 0/base timer 1
T0H
T1L/T1H
SIO0/UART1 receive
SIO1/UART1 transmit
ADC/MIC/T6/T7/PWM4, PWM5
Port 0/T4/T5
Interrupt Source
•
Priority levels X
>
H
>
L
•
Of interrupts of the same level, the one with the smallest vector address takes precedence.
•
IFLG (List of interrupt source flag function)
1) Shows a list of interrupt source flags that caused a branching to a particular vector address
Subroutine Stack Levels: 2048 levels maximum (The stack is allocated in RAM.)
High-speed Multiplication/Division Instructions
•
16 bits
×
8 bits
(5 tCYC execution time)
•
24 bits
×
16 bits
(12 tCYC execution time)
•
16 bits
÷
8 bits
(8 tCYC execution time)
•
24 bits
÷
16 bits
(12 tCYC execution time)
Oscillation Circuits
•
RC oscillation circuit (internal): For system clock
•
CF oscillation circuit: For system clock, with internal Rf and external Rd
•
Crystal oscillation circuit: For low-speed system clock, with internal Rf and external Rd
•
Multifrequency RC oscillation circuit (internal): For system clock
1) Adjustable in
±4%
(typ) increments from the selected center frequency.
2) Measures the frequency of the source oscillation clock using the input signal from XT1 as the reference.
System Clock Divider Function
•
Can run on low current.
•
The minimum instruction cycle selectable from 300ns, 600ns, 1.2μs, 2.4μs, 4.8μs, 9.6μs, 19.2μs, 38.4μs,
and 76.8μs (at a main clock rate of 10MHz).
System Clock Multiplier Function
•
Allows the 2 or 3 times the clock frequency to be selected when the crystal oscillation output is used as the system
clock.
No.A0965-4/25
LC877696B/80B/64B/48B
Standby Function
•
HALT mode: Halts instruction execution while allowing the peripheral circuits to continue operation.
(Some parts of the serial transfer function stops operation.)
1) Oscillation is not stopped automatically.
2) Canceled by a system reset or occurrence of an interrupt
•
HOLD mode: Suspends instruction execution and the operation of the peripheral circuits.
1) The CF, RC, X’tal, and multifrequency RC oscillators automatically stop operation.
2) There are three ways of resetting the HOLD mode.
(1) Setting the reset pin to the low level
(2) Setting at least one of the INT0, INT1, and INT2, pins to the specified level
(3) Having an interrupt source established at port 0
•
X'tal HOLD mode: Suspends instruction execution and the operation of the peripheral circuits except the base timer
and infrared remote controller circuit.
1) The CF, RC, and multifrequency RC oscillators automatically stop operation
2) The state of crystal oscillation established when the X'tal HOLD mode is entered is retained.
3) There are five ways of resetting the X'tal HOLD mode.
(1) Setting the reset pin to the low level
(2) Setting at least one of the INT0, INT1, and INT2 pins to the specified level
(3) Having an interrupt source established at port 0
(4) Having an interrupt source established in the base timer circuit
(5) Having an interrupt source established in the infrared remote control receiver circuit
On-chip Debugger function
•
Supports software debugging with the IC mounted on the target board.
Package Form
•
QFP80(14×14):
•
TQFP80J(12×12):
Lead-free type
Lead-free type
Development Tools
•
On-chip debugger: TCB87-TypeB + LC87F76C8A
Flash ROM Programming Board
Package
QFP80(14×14)
TQFP80J(12×12)
Programming Board
W87F71256QF
W87F71256SQ
Same Package and Pin Assignment as Flash ROM Version
1) LC877600 series options can be specified by using flash ROM data. Thus the board used for mass production can
be used for debugging and evaluation without modifications.
2) If the program for the mask ROM version is used, the size of the available ROM/RAM spaces is the same as
that of the mask ROM version.
No.A0965-5/25
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