tmp1941af TOSHIBA Semiconductor CORPORATION, tmp1941af Datasheet - Page 283

• Manufacturer Part Number: tmp1941af
• Description: 32-bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

(2) V CC = 3.0 to 3.6 V, Ta = 0 to 70°C, ALE width = 1.5 clock cycles
No.
10
11
12
13
14
15
16
17
18
19
20
21
* W = 0
W: Number of wait-state cycles inserted (0 to 7 for programmed wait insertion)
N: Value of N for (1 + N) wait insertion
AC measurement conditions:
1
2
3
4
5
6
7
8
9
System clock period (x)
A0–A15 valid to ALE low
A0–A15 hold after ALE low
ALE pulse width high
ALE low to RD or WR asserted
A0–A15 valid to RD or WR asserted
A0–A23 valid to RD or WR asserted
A0–A23 hold after RD or WR negated
A0–A15 valid to D0–D15 data in
A0–A23 valid to D0–D15 data in
D0–D15 hold after RD negated
D0–D15 valid to WR negated
D0–D15 hold after WR negated
A0–A23 valid to WAIT input
A0–A15 valid to WAIT input
RD or WR negated to ALE high
RD asserted to D0–D15 data in
RD width low
RD negated to next A0–A15 output
WR width low
WAIT hold after RD or WR asserted
•
•
Output levels: High = 2.4 V, Low = 0.45 V, CL = 30 pF
Input levels: High = 2 V, Low = 0.6 V
Parameter
TMP1941AF-243
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WW
WD
SYS
AL
LA
LL
LC
CL
ACL
ACH
CA
ADL
ADH
RD
RR
HR
RAE
DW
AWH
AWL
CW
(0.5 + N − 1) x + 2 (0.5 + N) x − 17
x (1 + W) − 10
x (1 + W) − 10
x (1 + W) − 18
1.4x – 12
0.4x – 8
1.4x – 6
0.4x – 8
2x – 20
2x – 20
x – 15
x – 15
x – 15
x – 15
31.25
Min
0
Equation
x (3 + W) − 37
x (3 + W) − 37
x (1 + W) − 22
2.5x − 30
2.5x − 30
33333
Max
TMP1941AF
fsys = 40 MHz*
Min
23
29
10
30
30
10
15
10
15
10
15
2
2
0
7
2003-03-27
Max
38
38
32
32
20
3
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns