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PDF MC14500BCL Data sheet ( Hoja de datos )
| Número de pieza | MC14500BCL | |
| Descripción | Industrial Control Unit | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MC14500BCL (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Industrial Control Unit
The MC14500B Industrial Control Unit (ICU) is a single–bit CMOS
processor. The ICU is designed for use in systems requiring decisions based
on successive single–bit information. An external ROM stores the control
program. With a program counter (and output latches and input multiplexers,
if required) the ICU in a system forms a stored–program controller that
replaces combinatorial logic. Applications include relay logic processing,
serial data manipulation and control. The ICU also may control an MPU or be
controlled by an MPU.
• 16 Instructions
• DC to 1.0 MHz Operation at VDD = 5 V
• On–Chip Clock (Oscillator)
• Executes One Instruction per Clock Cycle
• 3 to 18 V Operation
• Low Quiescent Current Characteristic of CMOS Devices
• Capable of Driving One Low–Power Schottky Load or Two Low–Power
TTL Loads over Full Temperature Range
DATA 3
D
C
IEN
X1 14
X2 13
OSC
I0 7
6
I1 INST
I2 5 REG
4
I3
1
RST
BLOCK DIAGRAM
D
C
LU
D
OEN
STO
STOC
MUX
C
RESULT
REG. (RR)
X1 — OSCILLATOR OUTPUT
X2 — OSCILLATOR INPUT
2 WRITE
16
+ V VDD
8
VSS
15
RR
12 JMP
11 RTN
10
FLAG O
9
FLAG F
MC14500B
L SUFFIX
CERAMIC
CASE 620
P SUFFIX
PLASTIC
CASE 648
DW SUFFIX
SOIC
CASE 751G
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBDW
Plastic
Ceramic
SOIC
TA = – 55° to 125°C for all packages.
PIN ASSIGNMENT
RST 1
WRITE 2
16 VDD
15 RR
DATA 3
14 X1
I3 4
13 X2
I2 5
12 JMP
I1 6
11 RTN
I0 7
10 FLAG O
VSS 8
9 FLAG F
REV 3
1/94
©MMCot1or4o5la0, I0nBc. 1995
306
MOTOROLA CMOS LOGIC DATA
1 page  
X1
RST
IEN
REGISTER
OEN
REGISTER
RR
4–BIT
INSTRUCTION
FLAG 0
FLAG F
TIMING WAVEFORMS
Instructions NOPO, NOPF
Instructions RR, IEN, OEN remain unaffected
tW(R)
tPHL
(RESET TO XI)
tPHL (RESET TO RR)
NOP0
NOPF
tPLH
(DATA TO FLAG)
tPHL
NOPO
Instructions SKZ, JMP, RTN
Instructions RR, IEN, OEN remain unaffected
X1
tW(cl)
4–BIT
INSTRUCTION
SKZ * JMP RTN * JMP
RST
RR
JMP FLAG
RTN FLAG
SKP F/F
INTERNAL
* Instructions Ignored.
tPHL
(RESET TO JUMP)
MC14500B
310
MOTOROLA CMOS LOGIC DATA
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MC14500BCL.PDF ] | |
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