Ordering number : ENA0744
LC875CC8A
LC875CB2A
Overview
CMOS IC
ROM 128K/112K byte, RAM 4096 byte on-chip
8-bit 1-chip Microcontroller
The SANYO LC875CC8A/B2A are 8-bit microcomputer that, centered around a CPU running at a minimum bus cycle
time of 83.3ns, integrate on a single chip a number of hardware features such as 128K/112K-byte ROM, 4K-byte RAM,
two sophisticated 16-bit timers/counters (may be divided into 8-bit timers), four 8-bit timers with a prescaler, a base
timer serving as a time-of-day clock, two synchronous SIO ports (with automatic block transmission/reception
capabilities), an asynchronous/synchronous SIO port, two UART ports (full duplex), four 12-bit PWM channels, an 8-bit
15-channel AD converter, a high-speed clock counter, a system clock frequency divider, and a 29-source 10-vector
interrupt feature.
Features
ROM
•
131072 × 8 bits (LC875CC8A)
•
114688 × 8 bits (LC875CB2A)
RAM
•
4096 × 9 bits
Minimum Bus Cycle Time
•
83.3ns (12MHz)
Note: Bus cycle time indicates the speed to read ROM.
Minimum Instruction Cycle Time (tCYC)
•
250ns (12MHz)
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.1.03
80608HKIM 20070314-S00003 No.A0744-1/29
LC875CC8A/B2A
Ports
•
Normal withstand voltage I/O ports
Ports whose I/O direction can be designated in 1 bit units: 64 (P1n, P2n, P3n, P70 to P73, P8n, PAn, PBn, PCn,
S2Pn, PWM0, PWM1, XT2)
Ports whose I/O direction can be designated in 2 bit units: 16 (PEn, PFn)
Ports whose I/O direction can be designated in 4 bit units: 8 (P0n)
•
Normal withstand voltage input ports:
1 (XT1)
•
Dedicated oscillator ports:
2 (CF1, CF2)
•
Reset pin:
1 (RES)
•
Power pins:
8 (VSS1 to VSS4, VDD1 to VDD4)
Timers
- Timer 0: 16-bit timer/counter with capture registers
Mode 0: 8-bit timer with an 8-bit programmable prescaler (with two 8-bit capture registers) × 2 channels
Mode 1: 8-bit timer with an 8-bit programmable prescaler (with two 8-bit capture registers)
+ 8-bit counter (with two 8-bit capture registers)
Mode 2: 16-bit timer with an 8-bit programmable prescaler (with two 16-bit capture registers)
Mode 3: 16-bit counter (with 2 16-bit capture registers)
- Timer 1: 16-bit timer/counter that support PWM/ toggle outputs
Mode 0: 8-bit timer with an 8-bit prescaler (with toggle outputs)
+ 8-bit timer/counter (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 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 outputs)
- Timer 7: 8-bit timer with a 6-bit prescaler (with toggle outputs)
- Base timer
1) The clock is selectable from the subclock (32.768 kHz crystal oscillator), system clock, and timer 0
prescaler output.
2) Interrupts programmable in 5 different time schemes.
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
•
SIO 0: 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)
•
SIO 1: 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)
•
SIO2: 8 bit synchronous serial interface
1) LSB first mode
2) Built-in 8-bit baudrate generator (maximum transfer clock cycle = 4/3 Tcyc)
3) Automatic continuous data transmission (1 to 32 bytes)
UART: 2 channels
1) Full duplex
2) 7/8/9 bit data bits selectable
3) 1 stop bit (2 bits in continuous transmission mode)
4) Built-in baudrate generator (with baudrates of 16/3 to 8192/3 tCYC)
No.A0744-2/29
LC875CC8A/B2A
AD Converter: 8 bits × 15 channels
•
Analog reference voltage can selected from VDD1 or VDD3.
PWM: Multifrequency 12-bit PWM × 4 channels
Remote Control Receiver Circuit (sharing pins with P73, INT3, and T0IN)
1) Noise filtering function (noise filter time constant selectable from 1 tCYC, 32 tCYC, and 128 tCYC)
2) The noise filtering function is available for the INT3, T0IN, or T0HCP signal at P73. When P73 is read with
an instruction, the signal level at that pin is read regardless of the availability of the noise filtering function.
Watchdog Timer
1) External RC watchdog timer
2) Interrupt and reset signals selectable
Interrupts
•
29 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
00003H
0000BH
00013H
0001BH
00023H
0002BH
00033H
0003BH
00043H
0004BH
Selectable 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/INT5/Base timer
T0H/INT6
T1L/T1H/INT7
SIO0/UART1 receive/UART2 receive
SIO1/SIO2/UART1 transmit/UART2 transmit
ADC/T6/T7/PWM4, PWM5
Port 0/T4/T5/PWM0, PWM1
Interrupt Signal
•
Priority Level: X > H > L
•
Of interrupts of the same level, the one with the smallest vector address takes precedence.
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 oscillator circuit (internal): For system clock
•
CF oscillator circuit: For system clock with internal Rf
•
Crystal oscillator circuit: For low-speed system clock
•
Multifrequency RC oscillator circuit (internal): For system clock
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).
No.A0744-3/29
LC875CC8A/B2A
Standby Function
•
HALT mode: Halts instruction execution while allowing the peripheral circuits to continue operation.
1) Oscillation is not halted automatically.
2) Canceled by system reset or occurrence of interrupt.
•
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 three ways of resetting the HOLD mode.
(1) Setting the Reset pin to the lower level
(2) Setting at least one of the INT0, INT1, INT2, INT4, and INT5 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.
1) The CF and RC oscillators automatically stop operation.
2) The state of crystal oscillation established when the HOLD mode is entered is retained.
3) There are four 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, INT2, INT4, and INT5 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.
Package Form
•
QIP100E(14×20): “Lead-free type”
•
TQFP100(14×14): “Lead-free type”
Development Tools
•
Evaluation (EVA) chip : LC87EV690
•
Emulator
: EVA62S + ECB876600D + SUB875C00
+ POD100QFP or POD100SQFP Type B
: ICE-B877300 + SUB875C00 + POD100QFP or POD100SQFP Type B
•
Flash version
: LC87F5CC8A
No.A0744-4/29
LC875CC8A/B2A
Package Dimensions
unit : mm (typ)
3151A
23.2
80
81
51
50
0.8
14.0
20.0
100
1
0.65
(0.58)
(2.7)
31
30
0.3
0.15
3.0max
0.1
SANYO : QIP100E(14X20)
Package Dimensions
unit : mm (typ)
3274
16.0
14.0
75
76
51
50
17.2
0.5
100
1
(1.0)
(1.0)
26
0.5
0.2
25
0.125
1.2max
0.1
SANYO : TQFP100(14X14)
14.0
16.0
No.A0744-5/29
嵌入式系统
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