TMP91C824
91C824-223
2008-02-20
(2)
Vcc
=
2.0 V
±
10%
Variable 10
MHz
No. Parameter
Symbol
Min Max Min
Max
Unit
1 f
FPH
period (
=
x)
tFPH 100
31250
100
ns
2 A0 to A15 valid
→
RD
/
WR
fall
tAC
x
−
46
54 ns
3
RD
rise
→
A0 to A23 hold
tCAR
0.5x
−
30
20 ns
4
WR
rise
→
A0 to A23 hold
tCAW
x
−
26
74 ns
5 A0 to A23 valid
→
RD
/
WR
fall
tAD
3.5x
−
48
302 ns
6
RD
fall
→
D0 to D15 input
tRD
2.5x
−
48
202 ns
7
RD
low width
tRR
2.5x
−
30
220
ns
8
RD
rise
→
D0 to D15 hold
tHR 0
0
ns
9
WR
low width
tWW
2.0x
−
30
170
ns
10 D0 to D15 valid
→
WR
rise
tDW
1.5x
−
70
80 ns
11
WR
rise
→
D0 to D15 Hold
tWD
x
−
50
50 ns
12 A0 to A23 valid
→
WAIT
input
tAW
3.5x
−
120
230 ns
13
RD
/
WR
fall
→
WAIT
hold
tCW
2.5x
+
0
250
ns
14 A0 to A23 valid
→
Port input
tAPH
3.5x
−
50
300 ns
15 A0 to A23 valid
→
Port hold
tAPH2 3.5x 350
ns
16 A0 to A23 valid
→
Port valid
tAPO
3.5x
+
60
410 ns
AC measuring conditions
•
Output level: High
=
0.7 V, Low
=
0.3 V, CL
=
50 pF
•
Input level: High
=
0.9 V, Low
=
0.1V
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.
(1
+
N) WAIT
mode
(1
+
N) WAIT
mode