TMP91C824
91C824-217
4.3 AC
Characteristics
(1) Vcc
=
3.0 V
±
10%
Variable
f
FPH
=
33 MHz
No. Symbol
Parameter
Min Max Min Max
1
t
FPH
f
FPH
Period (
=
x)
30.3 31250 30.3
ns
2
t
AC
A0 to 23 Vaild
→
RD
/
WR
Fall
x
−
23
7
ns
3
t
CAR
RD
Rise
→
A0 to A23 Hold
0.5x
−
13
2
ns
4
t
CAW
WR
Rise
→
A0 to A23 Hold
x
−
13
17
ns
5
t
AD
A0 to A23 Valid
→
D0 to D15 Input
3.5x
−
24
82
ns
6
t
RD
RD
Fall
→
D0 to D15 Input
2.5x
−
24
51
ns
7
t
RR
RD
Low Width
2.5x
−
15
60
ns
8
t
HR
RD
Rise
→
D0 to A15 Hold
0 0
ns
9
t
WW
WR
Low Width
2.0x
−
15
45
ns
10
t
DW
D0 to D15 Valid
→
WR
Rise
1.5x
−
35
10
ns
11
t
WD
WR
Rise
→
D0 to D15 Hold
x
−
25
5
ns
12
t
AW
A0 to A23 Valid
→
WAIT
Input
3.5x
−
60
46
ns
13
t
CW
RD
/
WR
Fall
→
WAIT
Hold
2.5x
+
0
76
ns
14
t
APH
A0 to A23 Valid
→
PORT Input
3.5x
−
89
17
ns
15
t
APH2
A0 to A23 Valid
→
PORT Hold
3.5x
106
ns
16
t
APO
A0 to A23 Valid
→
PORT Valid
3.5x
+
60
166
ns
AC Measuring Conditions
・
Output Level : High = 0.7 Vcc, Low = 0.3 Vcc, CL
=
50 pF
・
Input Level
: High = 0.9 Vcc, Low = 0.1 Vcc
(note): Symbol “ x ” in the above table means the period of clock “ f
FPH
“, it’s half period of the system clock “ f
SYS
“ for CPU core. The period of f
FPH
depends on the clock gear setting or the selection of High / Low oscillator
frequency.
Unit
(1WAIT+n)
(1WAIT+n)