Ordering number : ENA1400
LC872G08A
LC872G06A
LC872G04A
Overview
CMOS IC
8K/6K/4K-byte ROM and 256-byte RAM integrated
8-bit 1-chip Microcontroller
The SANYO LC872G08A/06A/04A is 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 8K/6K/4K-byte ROM, 256-byte
RAM, sophisticated 16-bit timers/counters (may be divided into 8-bit timers), a 16-bit timer/counter (may be divided into
8-bit timers/counters or 8-bit PWMs), two 8-bit timers with a prescaler, a base timer serving as a time-of-day clock, a
high-speed clock counter, a synchronous SIO interface, an asynchronous/synchronous SIO interface, a UART interface
(full duplex), a 12-bit/8-bit 8-channel AD converter, a system clock frequency divider, an internal reset and a 18-source
10-vector interrupt feature.
Features
ROM
•
8192
×
8 bits (LC872G08A)
•
6144
×
8 bits (LC872G06A)
•
4096
×
8 bits (LC872G04A)
RAM
•
256
×
9 bits (LC872G08A/06A/04A)
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. 0.40
12109HKIM 20081216-S00009 No.A1400-1/27
LC872G08A/06A/04A
Minimum Bus Cycle
•
83.3ns (12MHz at VDD=2.7V to 5.5V)
•
100ns (10MHz at VDD=2.2V to 5.5V)
•
250ns (4MHz at VDD=1.8V to 5.5V)
Note: The bus cycle time here refers to the ROM read speed.
Minimum Instruction Cycle Time
•
250ns (12MHz at VDD=2.7V to 5.5V)
•
300ns (10MHz at VDD=2.2V to 5.5V)
•
750ns (4MHz at VDD=1.8V to 5.5V)
Ports
•
Normal withstand voltage I/O ports
Ports I/O direction can be designated in 1-bit units
Ports I/O direction can be designated in 4-bit units
•
Dedicated oscillator ports/input ports
•
Reset pin
•
Power pins
11 (P1n, P20, P21, P70)
8 (P0n)
2 (CF1/XT1, CF2/XT2)
1 (RES)
2 (VSS1, VDD1)
Timers
•
Timer 0: 16-bit timer/counter with a capture register.
Mode 0: 8-bit timer with an 8-bit programmable prescaler (with an 8-bit capture register)
×
2 channels
Mode 1: 8-bit timer with an 8-bit programmable prescaler (with an 8-bit capture register)
+ 8-bit counter (with an 8-bit capture register)
Mode 2: 16-bit timer with an 8-bit programmable prescaler (with a 16-bit capture register)
Mode 3: 16-bit counter (with a 16-bit capture register)
•
Timer 1: 16-bit timer/counter that supports PWM/toggle outputs
Mode 0: 8-bit timer with an 8-bit prescaler (with toggle outputs) + 8-bit timer/
counter 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/counter 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 6: 8-bit timer with a 6-bit prescaler (with toggle outputs)
•
Timer 7: 8-bit timer with a 6-bit prescaler (with toggle outputs)
•
Base timer
1) The clock is selectable from the subclock (32.768kHz crystal oscillation), system clock, and timer 0 prescaler
output.
2) Interrupts are programmable in 5 different time schemes
High-Speed Clock Counter
•
Can count clocks with a maximum clock rate of 20MHz (at a main clock of 10MHz).
•
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=4/3tCYC)
•
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)
No.A1400-2/27
LC872G08A/06A/04A
UART
•
Full duplex
•
7/8/9 bit data bits selectable
•
1 stop bit (2 bits in continuous data transmission)
•
Built-in baudrate generator
AD Converter: 12 bits/8 bits
×
8 channels
•
12 bits/8 bits AD converter resolution selectable
Remote Control Receiver Circuit (sharing pins with P15, SCK1, INT3, and T0IN)
•
Noise rejection function (noise filter time constant selectable from 1 tCYC, 32 tCYC, and 128 tCYC)
Clock Output Function
•
Can generate clock outputs with a frequency of 1/1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64 of the source clock selected as
the system clock.
•
Can generate the source clock for the subclock
Watchdog Timer
•
External RC watchdog timer
•
Interrupt and reset signals selectable
Interrupts
•
18 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/INT4
INT3/base timer
T0H
T1L/T1H
SIO0/UART1 receive
SIO1/UART1 transmit
ADC/T6/T7
Port 0
Interrupt Source
•
Priority levels X > H > L
•
Of interrupts of the same level, the one with the smallest vector address takes precedence.
Subroutine Stack Levels: 128levels (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)
No.A1400-3/27
LC872G08A/06A/04A
Oscillation Circuits
•
Internal oscillation circuits
Low-speed RC oscillation circuit :
For system clock (100kHz)
Medium-speed RC oscillation circuit : For system clock (1MHz)
Multifrequency RC oscillation circuit : For system clock (8MHz)
•
External oscillation circuits
Hi-speed CF oscillation circuit:
For system clock, with internal Rf
Low speed crystal oscillation circuit:
For low-speed system clock, with internal Rf
1) The CF and crystal oscillation circuits share the same pins. The active circuit is selected under program control.
2) Both the CF and crystal oscillator circuits stop operation on a system reset. When the reset is released, only the
CF oscillation circuit resumes operation.
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).
Internal Reset Function
•
Power-on reset (POR) function
1) POR reset is generated only at power-on time.
2) The POR release level can be selected from 8 levels (1.67V, 1.97V, 2.07V, 2.37V, 2.57V, 2.87V, 3.86V, and
4.35V) through option configuration.
•
Low-voltage detection reset (LVD) function
1) LVD and POR functions are combined to generate resets when power is turned on and when power voltage falls
below a certain level.
2) The use/disuse of the LVD function and the low voltage threshold level (7 levels: 1.91V, 2.01V, 2.31V, 2.51V,
2.81V, 3.79V, 4.28V).
Standby Function
•
HALT mode: Halts instruction execution while allowing the peripheral circuits to continue operation.
1) Oscillation is not halted automatically.
•
HOLD mode: Suspends instruction execution and the operation of the peripheral circuits.
1) The CF, RC, and crystal oscillators automatically stop operation.
2) There are four ways of resetting the HOLD mode.
(1) Setting the reset pin to the lower level.
(2) System resetting by watchdog timer or low-voltage detection
(3) Having an interrupt source established at either INT0, INT1, INT2 or INT4
* INT0 and INT1 HOLD mode reset is available only when level detection is set.
(4) 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.
1) The RC oscillator automatically stop operation.
2) The state of crystal oscillations 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) System resetting by watchdog timer or low-voltage detection.
(3) Having an interrupt source established at either INT0, INT1, INT2 or INT4
* INT0 and INT1 HOLD mode reset is available only when level detection is set.
(4) Having an interrupt source established at port 0.
(5) Having an interrupt source established in the base timer circuit.
Note: Available only when X’tal oscillation is selected.
No.A1400-4/27
LC872G08A/06A/04A
Package Form
•
MFP24S (300mil): Lead-free type
•
SSOP24 (225mil): Lead-free type (Development)
Development Tools
•
On-chip debugger: TCB87 TypeB + LC87D2G08A
TCB87 TypeB + LC87F2G08A
Note: LC87F2G08A has an On-chip debugger but its function is limited.
Flash ROM Version
•
LC87F2G08A
Package Dimensions
unit : mm (typ)
3112B
12.5
24
13
Package Dimensions
unit : mm (typ)
3287
6.5
24
13
5.4
7.6
4.4
0.63
6.4
1
1.0
(0.75)
0.35
12
0.15
1
0.5
(0.5)
1.7max
12
0.22
0.15
0.1
SANYO : MFP24S(300mil)
SANYO : SSOP24(225mil)
0.1
(1.3)
1.5max
(1.5)
0.5
No.A1400-5/27
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