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LC87F2W48A Datasheet

8-bit 1-chip Microcontroller

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LC87F2W48A
CMOS IC
50K-byte FROM and 1536-byte RAM integrated
8-bit 1-chip Microcontroller
http://onsemi.com
Overview
The LC87F2W48A 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 50K-byte flash ROM (On-board-
programmable), 1536-byte RAM, an On-chip-debugger, sophisticated 16-bit timers/counters (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 base timer serving as a time-of-day clock, a high-speed clock counter, a synchronous SIO interface, an
asynchronous/synchronous SIO interface, a UART interface (full duplex), two 12-bit PWM channels, a 14-channel
AD converter with 12-/8-bit resolution selector, a system clock frequency divider, an infrared remote controller
receiver circuit, and a 24-source 10-vector interrupt feature.
Features
Flash ROM
Capable of on-board-programming with wide range, 2.7 to 5.5V, of voltage source.
Block-erasable in 128 byte units
Writable in 2-byte units
51200 × 8 bits
RAM
1536 × 9 bits
Minimum Bus Cycle
83.3ns (12MHz) VDD=2.7V 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.1.00
83111HKIM 20101027-S00001 No.A1869-1/26


  ON Semiconductor Electronic Components Datasheet  

LC87F2W48A Datasheet

8-bit 1-chip Microcontroller

No Preview Available !

Minimum instruction cycle time
250ns (12MHz) VDD=2.7 to 5.5V
LC87F2W48A
Ports
Normal withstand voltage I/O ports
Ports I/O direction can be designated in 1-bit units
Dedicated oscillator ports/input ports
Reset pin
On-chip Debugger pin
Power pins
38 (P0n, P1n, P2n, P31 to P36, P70 to P73,
PWM0, PWM1, XT2, CF2)
2 (XT1, CF1)
1 (RES)
1 (OWP0)
6 (VSS1 to 3, VDD1 to 3)
Timers
Timer 0: 16 bit timer / counter with capture register
Mode 0: 8-bit timer with an 8-bit programmable prescaler (with an 8-bit capture register) × 2 channels
Mode 1: 8-bit timer with an 8-bit programmable prescaler (with an 8-bit capture register)
+ 8-bit counter (with an 8-bit capture register)
Mode 2: 16-bit timer with an 8-bit programmable prescaler (with a 16-bit capture register)
Mode 3: 16-bit counter (with a 16-bit capture register)
Timer 1: 16-bit timer/counter that supports PWM/toggle outputs
Mode 0: 8-bit timer with an 8-bit prescaler (with toggle outputs)
+ 8-bit timer/counter with an 8-bit prescaler (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 possible 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 output)
Timer 7: 8-bit timer with a 6-bit prescaler (with toggle output)
Base Timer
(1) The clock is selectable from the subclock (32.768kHz crystal oscillation), system clock,
and timer 0 prescaler output.
(2) Interrupts are 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.
Serial Interface
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, specifiable in 1-bit units, suspension and resumption of
data transmission possible in 1-byte units)
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)
No.A1869-2/26


Part Number LC87F2W48A
Description 8-bit 1-chip Microcontroller
Maker ON Semiconductor
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