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PDF LC877917A Data sheet ( Hoja de datos )
| Número de pieza | LC877917A | |
| Descripción | 8-bit 1-chip Microcontroller | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : ENA1840
LC877917A
CMOS IC
16K-byte ROM and 512-byte RAM integrated
8-bit 1-chip Microcontroller
Overview
The SANYO LC877917A is an 8-bit microcomputer that, centered around a CPU running at a minimum bus cycle time
of 250ns, integrates on a single chip a number of hardware features such as 16K-byte ROM, 512-byte RAM, a LCD
controller/driver, sophisticated 16-bit timer/counter (may be divided into 8-bit timers), a 16-bit timer/counter (may be
divided into 8-bit timers/counters or 8-bit PWMs), four 8-bit timers with a prescaler, a calendar function (RTC), a
synchronous SIO interface (with automatic block transmission/reception capabilities), an asynchronous/synchronous SIO
interface, a UART interface (full duplex), a 12-bit/8-bit 7-channel AD converter, high-speed clock counter, a system
clock frequency divider, a power on reset function and a 21-source 10-vector interrupt feature.
Features
ROM
• 16384×8 bits
RAM
512 × 9 bits
Minimum Bus Cycle
• 250ns (4MHz) VDD=2.4V to 3.6V
Note: The bus cycle time here refers to the ROM read speed.
Minimum instruction cycle time
• 750ns (4MHz) VDD=2.4 to 3.6V
Temperature range
• -40°C to +85°C
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.0.97
O0610HKIM 20100914-S00003 No.A1840-1/29
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
LC877917A
Standby Function
• HALT mode
HALT mode is used to reduce power consumption. During the HALT mode, program execution is stopped but
peripheral circuits keep operating (Some parts of serial transfer operation stop.)
(1) Oscillation circuits are not stopped automatically.
(2) Released by the system reset or interrupts.
• HOLD mode
HOLD mode is used to reduce power consumption. Program execution and peripheral circuits are stopped.
(1) CF, RC and crystal oscillation circuits stop automatically.
(2) Released by any of the following conditions.
1) Low level input to the reset pin
2) Watchdog timer interrupt
3) Specified level input to one of INT0, INT1, INT2
4) Port 0 interrupt
5) SPI interrupt by receiving 1-byte (8-bit clock)
• X’tal HOLD mode
X’tal HOLD mode is used to reduce power consumption. Program execution is stopped.
All peripheral circuits except the base timer are stopped.
(1) CF and RC oscillation circuits stop automatically.
(2) Crystal oscillator operation is kept in its state at HOLD mode inception.
(3) Released by any of the following conditions.
1) Low level input to the reset pin
2) Watchdog timer interrupt
3) Specified level input to one of INT0, INT1, INT2
4) Port 0 interrupt
5) Base-timer interrupt
6) RTC interrupt
7) SPI interrupt by receiving 1-byte (8-bit clock)
Shipping Form
• QIP64E (14×14) (Lead-/Halogen-free type)
• TQFP64J (7×7) (Lead-/Halogen-free type)
• SQFP64 (10×10) (Lead-/Halogen-free type)
• CHIP
Development Tools
• On-chip debugger: TCB87 TypeB+LC87F7932B
No.A1840-5/29
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
LC877917A
Continued from preceding page.
Pin name
I/O
Function description
S00/LPA0 to
S07/LPA7
S08/LPB0 to
S15/LPB7
S16/LPC0 to
S23/LPC7
COM0/LPL0 to
COM3/LPL3
V1 to V3
RES
I/O • Segment output for LCD
• Can be used as general purpose input/output port (LPA)
I/O • Segment output for LCD
• Can be used as general purpose input/output port (LPB)
I/O • Segment output for LCD
• Can be used as general purpose input/output port (LPC)
I/O • Common output for LCD
• Can be used as general purpose input/output port (LPL)
I/O • LCD output bias power supply
I • Reset terminal
XT1 I/O • Input for 32.768kHz crystal oscillation
• When not in use, connect to VDD1
XT2 I/O • Output for 32.768kHz crystal oscillation
• When not in use, set to oscillation mode and leave open
CF1 I • Input terminal for ceramic oscillator
• When not in use, connect to VDD1
CF2 O • Output terminal for ceramic oscillator
• When not in use, leave open
Option
No
No
No
No
No
No
No
No
No
No
Port Configuration
Port form and pull-up resistor options are shown in the following table.
Port status can be read even when port is set to output mode.
Terminal
Option applies to:
Options
Output Form
P00 to P07
each bit
1 CMOS
2 Nch-open drain
P10/S24 to P17/S31
each bit
1 CMOS
2 Nch-open drain
P30 - 1 CMOS
2 Nch-open drain
P70
-
None
Nch-open drain
P71 to P73
-
None
CMOS
S00(LPA0) to
S23(LPC7)
-
None
CMOS
P-ch Open Drain
N-ch Open Drain
COM0(LPL0) to
COM3(LPL3)
-
None
CMOS
P-ch Open Drain
N-ch Open Drain
XT1
-
None
Input only
XT2
-
None
32.768kHz crystal oscillator output
Nch-open drain when selected as normal port
Pull-up resistor
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
None
None
None
None
No.A1840-11/29
Datasheet pdf - http://www.DataSheet4U.net/
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