IC80C54 Datasheet, PDF (17/22 Pages) Integrated Circuit Solution Inc – CMOS SINGLE CHIP 8-BIT MICROCONTROLLER

IC80C54
IC80C58
EXTERNAL MEMORY CHARACTERISTICS
Symbol
tXLXL
tQVXH
tXHQX
tXHDX
tXHDV
Parameter
Serial port clock cycle time
Output data setup to
clock rising edge
Output data hold after
clock rising edge
Input data hold after
clock rising edge
Clock rising edge to
input data valid
24 MHz
Clock
Min Max
490 510
406 —
73 —
0—
— 417
40 MHz
Clock
Min Max
290 310
240 —
40 —
0—
— 250
Variable Oscillator
(3.5-40 MHz)
Min
Max
Unit
12tCLCL–10
12tCLCL+10 ns
10tCLCL–10
—
ns
2tCLCL–10
—
ns
0
—
ns
—
10tCLCL
ns
EXTERNAL CLOCK DRIVE
Symbol
1/tCLCL
tCHCX
tCLCX
tCLCH
tCHCL
Parameter
Oscillator Frequency
High time
Low time
Rise time
Fall time
Min
Max
Unit
3.5
40
MHz
10
—
ns
10
—
ns
—
10
ns
—
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
4
6
MHz
—
40tCLCL
—
48tCLCL
0
48tCLCL
Integrated Circuit Solution Inc.
17
MC003-0B