PC87332VLJ-5 NSC [National Semiconductor], PC87332VLJ-5 Datasheet - Page 86

• Manufacturer Part Number: PC87332VLJ-5
• Description: PC87332VLJ (3.3V/5V) and PC87332VLJ-5 (5V) (SuperI/OTM III Premium Green) Floppy Disk Controller, Dual UARTs, IEEE1284 Parallel Port, and IDE Interfac
• Manufacturer: NSC [National Semiconductor]

9 0 Electrical Characteristics
9 3 AC Electrical Characteristics
9 3 1 AC Test Conditions T
LOAD CIRCUIT (Notes 1 2 3 4)
Note 1 C
Note 2 S1
Note 3 For the FDC Open Drive Interface Pins S1
Note 4 For 3V operation it is recommended to connect all reset strap pins to the CMOS input
9 3 2 Clock Timing
Input Pulse Levels
Input Rise and Fall Times
Input and Output Reference Levels
TRI-STATE Reference Levels
Symbol
t
t
t
t
t
CH
CL
CP
ICP
DRP
impedance to active high and active high to high impedance measurements R
L
e
e
100 pF includes jig and scope capacitance
Open for push-pull outputs S1
A
MFM Data Rate
e
Clock High Pulse Width
Clock Low Pulse Width
Clock Period
Internal Clock Period
Data Rate Period
1 Mbps
500 kbps
300 kbps
250 kbps
0 C to 70 C V
Parameter
e
V
DD
e
TABLE 9-1 Nominal t
V
for high impedance to active low and active low to high impedance measurements S1
DD
DD
and R
TL C 11930– 22
(Continued)
FIGURE 9-1 Clock Timing
e
1000
2000
3333
4000
t
L
Active High
Active Low
DRP
5 0V
e
5 0V
Ground to 3V
150
g
1 4V
g
6 ns
10% 3 3V
10% 3 3V
86
ICP
a
3
3
5
6
b
t
c
c
c
c
0 5V
0 5V
ICP
AC TESTING INPUT AND OUTPUT WAVEFORM
and t
t
t
t
t
L
CP
CP
CP
CP
e
g
Min
16
16
40
g
1 0 k
DRP
10%
10%
(See Table 10-1)
(See Table 10-1)
Values
for P interface pins
Value
125
125
208
250
Units
Max
43
ns
ns
ns
ns
TL C 11930 – 24
e
TL C 11930 – 23
Units
GND for high
ns
ns
ns
ns
ns