8-bit 1-chip Microcontroller - ON Semiconductor
Description
Ordering number : ENA1955
LC87FBL08A
CMOS IC 8K-byte FROM and 256-byte RAM integrated
8-bit 1-chip Microcontroller
http://onsemi.
com
Overview
The LC87FBL08A 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-boardprogrammable), 256-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), two 8-bit timers with a prescaler, a base timer serving as a time-of-day clock, an asynchronous/synchronous SIO interface, two 12-bit PWM channels, a 12-bit/8-bit 11-channel AD converter, a system clock frequency divider, an internal reset and a 17-source 9-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 • 8192 × 8 bits
RAM • 256 × 9 bits
Minimum Bus Cycle • 83.
3ns (12MHz at 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
52511HKIM 20110419-S00003 No.
A1955-1/28
Minimum Instruction Cycle Time • 250ns (12MHz at VDD=2.
7V to 5.
5V)
LC87FBL08A
Ports • Normal withstand voltage I/O ports Ports I/O direction can be designated in 1-bit units
Ports I/O direction can be designated in 4-bit units • Dedicated oscillator ports/input ports • Reset pin • Power pins
17 (P1n, P20, P21,P30, P31, P70 to P73, CF2/XT2) 8 (P0n) 1 (CF1/XT1) 1 (RES) 3 (VSS1, VSS2, VDD1)
Timers • Timer 0: 16-bit timer/counter with a 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) + ...
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