|
IS80C52 Datasheet, PDF (44/48 Pages) Integrated Silicon Solution, Inc – CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER | |||
|
◁ |
IS80C52
IS80C32
ISSI ®
EXTERNAL MEMORY CHARACTERISTICS
(Continued)
Symbol Parameter
24 MHz
Clock
Min Max
tXLXL
Serial port clock cycle time
500 â
tQVXH
Output data setup to
clock rising edge
284 â
tXHQX
Output data hold after
clock rising edge
33 â
tXHDX
Input data hold after
clock rising edge
0â
tXHDV
Clock rising edge to
input data valid
â 284
40 MHz
Clock
Min Max
250 â
170 â
33 â
0â
â 117
Variable Oscillator
(3.5-24 MHz)
Min
Max
12tCLCLâ10
â
10tCLCLâ133
â
Unit
ns
ns
2tCLCLâ50
â
ns
0
â
ns
â
10tCLCLâ133 ns
EXTERNAL CLOCK DRIVE
Symbol
1/tCLCL
tCHCX
tCLCX
tCLCH
tCHCL
wParameter
Oscillator Frequency
High time
Low time
Rise time
Fall time
Min
Max
Unit
3.5
40
MHz
10
â
ns
10
â
ns
â
10
ns
â
10
ns
ROM VERIFICATION CHARACTERISTICS
Symbol
1/tCLCL
tAVQV
tELQV
tEHQZ
Parameter
Oscillator Frequency
Address to data valid
ENABLE low to data valid
Data float after ENABLE
Min
Max
Unit
2.5
40
MHz
â
48tCLCL
â
48tCLCL
0
48tCLCL
44
Integrated Silicon Solution, Inc. â 1-800-379-4774
MC004-1D
11/19/98
|
▷ |