IS80C286-20 Intersil, IS80C286-20 Datasheet - Page 47

• Manufacturer Part Number: IS80C286-20
• Description: IC CPU 16BIT 5V 20MHZ 68-PLCC
• Manufacturer: Intersil

Specifications of IS80C286-20

• Processor Type: 80C286 16-Bit
• Speed: 20MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -

Waveforms
NOTE: The modified timing is due to the CMDLY signal being active.
ARDY + ARDYEN
SRDY + SRDYEN
CYCLE TYPE
BHE, LOCK
M/IO, COD,
A
S1 • S0
D
READY
CMDLY
23
MWTC
15
MRDC
PLCK
BUS
CLK
DT/R
INTA
DEN
ALE
- A
- D
V
V
0
0
OH
OL
2
3
T
I
12A
13
φ2
ILLUSTRATED WITH ZERO
19
19
16
READ CYCLE
WAIT STATES
13
1
VALID ADDRESS
T
S
FIGURE 34. MAJOR CYCLE TIMING
VALID CONTROL
φ2
12
20
29
19
φ1
11
VALID READ DATA
T
80C286
C
19
17
12B
13
9
13
φ2
ILLUSTRATED WITH ONE
21
12
47
10
8
19
WRITE CYCLE
30
WAIT STATE
13
φ1
VALID ADDRESS
T
S
11
13
φ2
14
23
22
VALID CONTROL
19
12
20
φ1
12
T
C
VALID WRITE DATA
φ2
(SEE NOTE 1)
10
13
29
11
14
13
φ1
T
C
φ2
(T
S
READ
VALID IF T
30
φ1
OR T
S
)
15
24
S