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PDF LC87F2C64A Data sheet ( Hoja de datos )
| Número de pieza | LC87F2C64A | |
| Descripción | 8-bit 1-chip Microcontroller | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Ordering number : ENA1935
LC87F2C64A
CMOS IC
64K-byte FROM and 2048-byte RAM integrated
8-bit 1-chip Microcontroller
http://onsemi.com
Overview
The LC87F2C64A 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 64K-byte flash ROM (onboard
programmable), 2048-byte RAM, an on-chip debugger, 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), High-speed clock counter, a synchronous SIO interface (with automatic block
transmission/reception capabilities), an asynchronous/synchronous SIO interface, two channels of UART interface
(full duplex), four 12bit-PWMs, a 12/8-bit 16-channel AD converter, a system clock frequency divider, an internal
reset function and a 28-source 10-vector interrupt feature.
Features
Flash ROM
• On-board-programmable with wide range (3.0 to 5.5V) of voltage source
• Block-erasable in 128 byte units
• Writable in 2-byte units
• 65536 × 8 bits
RAM
• 2048 × 9 bits
Minimum Bus Cycle
• 83.3ns (12MHz at VDD=3.0V to 5.5V)
• 250ns (4MHz at VDD=2.4V to 5.5V)
Note: The bus cycle time here refers to the ROM read speed.
* This product is licensed from Silicon Storage Technology, Inc. (USA).
Semiconductor Components Industries, LLC, 2013
May, 2013
Ver.0.21
O1911HKIM 20100216-S00003 No.A1935-1/28
1 page  
LC87F2C64A
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 lower level
2) System resetting by watchdog timer
3) Occurrence of an interrupt
• HOLD mode: Suspends instruction execution and the operation of the peripheral circuits.
(1) The CF, RC, crystal, and frequency variable RC oscillators automatically stop operation.
(2) There are five ways of resetting the HOLD mode.
1) Setting the reset pin to the lower level
2) System resetting by watchdog timer
3) Setting at least one of the INT0, INT1, INT2, INT3, INT4, INT5 pins to the specified level
4) Having an interrupt source established at port 0
5) Having an interrupt source established in SPI receiving 1-byte (8-bit clock)
• X’'tal HOLD mode: Suspends instruction execution and the operation of the peripheral circuits except the base timer.
(1) The CF, RC, and frequency variable RC oscillators automatically stop operation.
(2) The state of crystal oscillation established when the X’tal HOLD mode is entered is retained.
(3) Power-save mode is available for even lower current consumption.
(4) There are seven ways of resetting the X’tal HOLD mode.
1) Setting the reset pin to the low level
2) System resetting by watchdog timer
3) Setting at least one of the INT0, INT1, INT2, INT3, INT4, INT5 pins to the specified level
4) Having an interrupt source established at port0
5) Having an interrupt source established in the base timer circuit
6) Having an interrupt source established in the RTC
7) Having an interrupt source established in SPI receiving 1-byte (8-bit clock)
On-chip Debugging Function (flash ROM version)
• Supports software debugging with the test device installed on the target board.
Data Security Function (flash ROM version)
• Protects the program data stored in flash memory from unauthorized read or copy.
Note: The data security function does not necessarily provide an absolute data security.
Shipping form
• QFP80 (14×14): Lead-free type
• TQFP80J (12×12): Lead-free type
Development Tools
• On-chip-debugger: TCB87 TypeB + LC87F2C64A
No.A1935-5/28
5 Page 
LC87F2C64A
Port Output Types
The table below lists the types of port outputs and the presence/absence of a pull-up/down resistor.
Data can be read into any input port even if it is in the output mode.
Port Name
Option Selected
iIn Units of
Option Type
Output Type
Pull-Up Resistor
P00 to P07
1 CMOS
1bit
2 Nch-open drain
Programmable
Programmable
P10 to P17
1 CMOS
1bit
2 Nch-open drain
Programmable
Programmable
P20 to P27
1 CMOS
1bit
2 Nch-open drain
Programmable
Programmable
P30 to P34
1 CMOS
1bit
2 Nch-open drain
Programmable
Programmable
P70 - No Nch-open drain
Programmable
P71 to P73
- No CMOS
Programmable
P80 to P87
- No Nch-open drain
No
PA0 to PA7
1 CMOS
1bit
2 Nch-open drain
Programmable
Programmable
PB0 to PC7
1 CMOS
1bit
2 Nch-open drain
Programmable
Programmable
PC0 to PC7
1 CMOS
1bit
2 Nch-open drain
Programmable
Programmable
PE0 to PE3
1 CMOS
1bit
2 Nch-open drain
Programmable
Programmable
XT2
32.768kHz crystal oscillator output or
No
- No
Nch-open drain when selected as normal port
CF2
Ceramic resonator output or
No
- No
Nch-open drain when selected as normal port
No.A1935-11/28
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet LC87F2C64A.PDF ] | |
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