参数资料
型号: IS80C286-20
厂商: Intersil
文件页数: 35/60页
文件大小: 0K
描述: IC CPU 16BIT 5V 20MHZ 68-PLCC
标准包装: 18
处理器类型: 80C286 16-位
速度: 20MHz
电压: 5V
安装类型: 表面贴装
封装/外壳: 68-LCC(J 形引线)
供应商设备封装: 68-PLCC(24.23x24.23)
包装: 管件
40
FIGURE 31. MULTIBUS SYSTEM BUS INTERFACE
SY
SB/
R
E
S
B
RES
E
T
CBRQ ALWAYS CBQLCK S0 S1 READY CLK AEN
M/I
O
LOCK
CBRQ
BUSY
BP
RN
BPRO
BREQ
INI
T
BCLK
82289
BUS
ARBITER
X
2
X
1
V
CC
AE
N
CMDLY
S0
S1
RE
A
D
Y
CLK
MRD
C
MWT
C
IO
RC
IO
WC
INTA ALE
MCE
DEN DT/R
M/I
O
82C288
BU
S
CO
NT
ROL
L
E
R
RES
PCLK
F/
C
EFI
SRDY
SRDYE
N
ARDY ARDYEN
RE
SET
CLK
R
E
ADY
S1
S0
82
C284
CLOC
K
GENERATOR
RE
SET
SYNC
READY
ENABL
E
ASYNC
READY
ENABL
E
P
R
OCES
SOR
EX
TE
NSI
O
N
(OPTIONAL
)
M/I
O
CLK
RES
E
T
RE
A
D
Y
S1
S0
NMI
HOL
D
HLDA
ER
R
O
R
BUSY
P
E
ACK
PE
R
E
Q
80
C286 CPU
D
15
-
D
0
INT
R
BHE
A
23
-
A
0
COD
/INT
A
LOCK
STB
OE
82
C83H
LA
T
C
H
CA
S
0-2
INT INT
A
WR RD SP/
EN
D
0-
D
7
OE
T
82
C59A
INTERRUPT
CONTROLLER
82C8
7H
TRANS-
CEIVE
R
A
0
CS
CHIP
S
E
LECT
ADDRESS
BUS
IR
0-
IR
7
DATA
BUS
V
CC
MEMORY
READ
MEMO
RY
WRITE
I/O
REA
D
I/O
W
R
ITE
INTERRUPT
ACKNOWLEDGE
MULTI
BUS
ARBITRATION
V
CC
80C286
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