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PDF LC87F2L08A Data sheet ( Hoja de datos )
| Número de pieza | LC87F2L08A | |
| Descripción | 8-bit Microcontroller | |
| Fabricantes | ON Semiconductor | |
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Ordering number : EN*A2279
LC87F2L08A
Advance Information
CMOS LSI
8-bit Microcontroller
8K-Byte Flash ROM / 256-Byte RAM / 30-pin
http://onsemi.com
Overview
The LC87F2L08A 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-byte flash ROM
(On-board-programmable), 256-byte RAM, an On-chip-debugger, two sophisticated 16-bit timers/counters (may be
divided into 8-bit timers), an asynchronous/synchronous SIO interface, a 12/8-bit 9-channel AD converter, four
analog comparator, two AMP circuits, an IGBT control circuit(PPG), a watch dog timer, an internal reset a system
clock frequency divider, and a 19-source 10-vector interrupt feature.
Features
Flash ROM
8192 8 bits
Capable of on-board programming with a power voltage range of 4.5 to 5.5V
Block-erasable in 128 byte units
Writing in 2-byte units
ROM
256 9 bits
Package : DIP30SD(400mil), Lead-free type
Minimum bus cycle time
83.3ns (12MHz)
Note : The bus cycle time here refers to the ROM read speed.
Minimum instruction cycle time
250ns (12MHz)
* This product is licensed from Silicon Storage Technology, Inc. (USA).
This document contains information on a new product. Specifications and information
herein are subject to change without notice.
ORDERING INFORMATION
See detailed ordering and shipping information on page 30 of this data sheet.
Semiconductor Components Industries, LLC, 2014
July, 2014 Ver. 1.04
DIP30SD(400mil)
71514HK No.A2279-1/30
1 page  
LC87F2L08A
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.
2) There are three ways of resetting the HALT mode.
(1) Setting the reset pin to the low level
(2) System resetting by watchdog timer or low-voltage detection
(3) Occurrence of an 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 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, INT4 or INT5
* 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 CF and 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) System resetting by watchdog timer or low-voltage detection.
(3) Having an interrupt source established at either INT0, INT1, INT2, INT4 or INT5
* 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.A2279-5/30
5 Page 
LC87F2L08A
Pin Name
Port 7
P70 to P73
AMP1I
AMP2O
CMP1IA
CMP1IB
CMP2I
CMP4I
PPGO
RES
CF1/XT1
CF2/XT2
I/O Description
I/O 4-bit I/O port
I/O specifiable in 1 bit units
Pull-up resistors can be turned on and off in 1 bit units.
Pin functions
P70 : INT0 input / HOLD reset input / timer 0L capture input
P71 : INT1 input / HOLD reset input / timer 0H capture input
P72 : INT2 input / HOLD reset input / timer 0 event input /
timer 0L capture input
P73 : INT3 input (with noise filter) / timer 0 event input /
timer 0H capture input
P70(AN8),P71(AN9) : AD converter input
Interrupt acknowledge type
Rising
Falling
Rising &
Falling
H level
L level
INT0
INT1
INT2
INT3
I AMP1 input
O AMP2 output
I CMP1 input(-)
I CMP1 input(+)
I CMP2 input(+)
I CMP4 input(+)
O PPG output
I/O External reset Input / internal reset output
I Ceramic resonator or 32.768kHz crystal oscillator input pin
Pin function
General-purpose input port
I/O Ceramic resonator or 32.768kHz crystal oscillator output pin
Pin function
General-purpose input port
Option
No
No
No
No
No
No
No
Yes
No
No
No
No.A2279-11/30
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet LC87F2L08A.PDF ] | |
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