|
80C562 Datasheet, PDF (10/20 Pages) NXP Semiconductors – Single-chip 8-bit microcontroller | |||
|
◁ |
Philips Semiconductors
Single-chip 8-bit microcontroller
Product specification
80C562/83C562
AC ELECTRICAL CHARACTERISTICS1, 2
12MHz CLOCK
VARIABLE CLOCK
SYMBOL FIGURE
PARAMETER
MIN
MAX
MIN
MAX
1/tCLCL
2
tLHLL
2
tAVLL
2
tLLAX
2
tLLIV
2
tLLPL
2
tPLPH
2
tPLIV
2
tPXIX
2
tPXIZ
2
tAVIV
2
tPLAZ
2
Data Memory
Oscillator frequency
ALE pulse width
Address valid to ALE low
Address hold after ALE low
ALE low to valid instruction in
ALE low to PSEN low
PSEN pulse width
PSEN low to valid instruction in
Input instruction hold after PSEN
Input instruction float after PSEN
Address to valid instruction in
PSEN low to address float
1.2
16
127
2tCLCLâ40
28
tCLCLâ55
48
tCLCLâ35
234
4tCLCLâ100
43
tCLCLâ40
205
3tCLCLâ45
145
3tCLCLâ105
0
0
59
tCLCLâ25
312
5tCLCLâ105
10
10
tAVLL
3, 4
Address valid to ALE low
43
tCLCLâ35
tRLRH
3
RD pulse width
400
6tCLCLâ100
tWLWH
4
WR pulse width
400
6tCLCLâ100
tRLDV
3
RD low to valid data in
252
tRHDX
3
Data hold after RD
0
0
tRHDZ
3
Data float after RD
97
tLLDV
3
ALE low to valid data in
517
tAVDV
3
Address to valid data in
585
tLLWL
3, 4
ALE low to RD or WR low
200
300
3tCLCLâ50
tAVWL
3, 4
Address valid to WR low or RD low
203
4tCLCLâ130
tQVWX
4
Data valid to WR transition
23
tCLCLâ60
tDW
4
Data before WR
433
7tCLCLâ150
tWHQX
4
Data hold after WR
33
tCLCLâ50
tRLAZ
3
RD low to address float
0
tWHLH
3, 4
RD or WR high to ALE high
43
123
tCLCLâ40
External Clock
tCHCX
tCLCX
tCLCH
tCHCL
5
High time3
5
Low time3
5
Rise time3
5
Fall time3
20
20
20
20
20
20
NOTES:
1. Parameters are valid over operating temperature range unless otherwise specified.
2. Load capacitance for port 0, ALE, and PSEN = 100pF, load capacitance for all other outputs = 80pF.
3. These values are characterized but not 100% production tested.
5tCLCLâ165
2tCLCLâ70
8tCLCLâ150
9tCLCLâ165
3tCLCL+50
0
tCLCL+40
20
20
UNIT
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1992 Jan 08
10
|
▷ |