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PDF LC87F57C8A Data sheet ( Hoja de datos )
| Número de pieza | LC87F57C8A | |
| Descripción | 8 Bit Single-Chip Microcontroller | |
| Fabricantes | Sanyo Electric | |
| Logotipo |  |
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It
Preliminary
8 BIT SINGLE CHIP MICROCONTROLLER
LC87F57C8A
LC87F57C8A
8-Bit Single Chip Microcontroller incorporating 128K-byte FEPROM and 3K-byte RAM on chip.
Overview
The LC87F57C8A is 8-bit single chip microcontroller with the following one-chip features:
- CPU : Operable at a minimum bus cycle time of 100ns
- On-chip Flash ROM Capacity : 128K bytes (on-board rewritable)
- On-chip RAM Capacity : 3K bytes
- two high performance 16-bit timer/counters (can be divided into 8 bit timers)
- four 8-bit timers with prescalers
- timer for use as date/time clock
- one synchronous serial I/O port (with automatic block transmit/receive function)
- one asynchronous/synchronous serial I/O port
- 12-bit PWM × 2
- 12-channel × 8-bit AD converter
- high speed 8-bit parallel interface
- high speed clock counter
- system clock divider
- 20-source 10-vectored interrupt system
Features
(1) Read Only Memory (Flash ROM)
- single 5V power supply, on-board writeable
- block erase in 128 byte units
- 131072 × 8 bits (LC87F57C8A)
(2) Bus Cycle Time
- 100ns (10MHz)
Note: Bus cycle time indicates the speed to read ROM.
♦ No products described or contained herein are intended for use in surgical implants, life-support systems,
aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the
like, the failure of which may directly or indirectly cause injury, death or property loss.
♦ Anyone purchasing any products described or contained herein for an above-mentioned use shall:
1) Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates,
subsidiaries and distributors and all their officers and employees, jointly and severally, against any
and all claims and litigation and all damages, cost and expenses associated with such use:
2) Not impose any responsibility for any fault or negligence which may be cited in any such claim or
litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of
their officers and employees jointly or severally.
♦ Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no
guarantees are made or implied regarding its use or any infringements of intellectual property rights or other
rights of third parties.
This product incorporates technology licensed from Silicon Storage Technology Inc.
This catalog provides information as of Feb 2002. Specifications and information herein are subject to change
without notice.
SANYO Electric Co., Ltd. Semiconductor Company. System-Business Div.
1-1-1, Sakata Oizumi-Machi, Gunma, JAPAN
Ver.1.00
Apr 03 Microcomputer Business Unit T.Kitamura
1/27
1 page  
LC87F57C8A
(18) Standby function
- HALT mode
The HALT mode stops program execution while the peripheral circuits keep operating and
minimizes power consumption. This operation mode can be released by a system reset or an
interrupt request.
- HOLD mode
The HOLD mode stops program execution and all oscillation circuits: CF, RC and Crystal
oscillations. This mode can be released by the following conditions.
1. Supply "L" level to the reset terminal (RES)
2. Supply the selected level to at lease one of INT0, INT1, INT2, INT4 INT5.
3. Supply an interrupt condition to Port 0.
- X’tal HOLD mode
The X’tal HOLD mode stops program execution and all peripheral circuits except for the base timer.
The crystal oscillator maintains its state at HOLD mode inception. This mode can be released by
the following conditions.
1. Supply "L" level to the reset terminal (RES).
2. Supply the selected level to at least one of INT0, INT1, INT2, INT4, INT5
3. Supply an interrupt condition to Port 0.
4. Supply an interrupt condition to the base timer circuit.
(19) Shipping form
- QIP64E
- SQFP64
(20) Development tools
- Evaluation (EVA) chip : LC876093
- Emulator
: EVA62S + ECB876600A + SUB875700 + POD64QFP or POD64SQFP
- Flash ROM writer adapter :W87F50256Q(QIP64E),W87F57256SQ(SQFP64)
Ver.1.00
5/27
5 Page 
LC87F57C8A
Port Output Configuration
Output configuration and pull-up resistor options are shown in the following table.
Input is possible even when a port is in output mode.
Terminal
Option
Option
Output Format
Pull-up resistor
applies to:
P00 - P07
each bit
1 CMOS
Programmable (Note 1)
2 Nch-open drain
None
P10 - P17
each bit
1 CMOS
Programmable
P20 - P27
2 Nch-open drain
Programmable
PA2 - PA5
each bit
1 CMOS
Programmable
PB0 - PB7(*)
PC0 - PC7
2 Nch-open drain
Programmable
P70
-
None
Nch-open drain
Programmable
P71 - P73
-
None
CMOS
Programmable
P80 - P82
-
None
Nch-open drain
None
PWM0, PWM1
-
None
CMOS
None
XT1
-
None
Input only
None
XT2
-
None
Output for 32.768kHz crystal oscillation
None
Note 1 Programmable pull-up resistor of Port 0 is specified in nibble units (P00 - P03, P04 - P07).
(*) When in parallel interface mode, PB0 - PB7 output format is CMOS, regardless of any selected option.
Note: To reduce VDD signal noise and to increase the duration of the backup battery supply, VSS1, VSS2,
and VSS3 should connect to each other and they should also be grounded.
Example 1 : During backup in hold mode, port output ‘H’ level is supplied from the back-up capacitor.
Power
Supply
Back-up
capacitor
LSI
VDD1
VDD2
VDD3
VSS1 VSS2 VSS3
Ver.1.00
11/27
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet LC87F57C8A.PDF ] | |
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