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參數(shù)資料
| 型號： | TMP90PM38 |
| 廠商： | Toshiba Corporation |
| 英文描述： | A System Evaluation LSI With 8-Bit CPU,One-Time PROM(32968 x 8-Bit),RAM(1024 x 8-Bit)(系統(tǒng)評估大規(guī)模集成電路（集成8位CPU，一次可編程ROM(32968 x 8位),RAM(1024 x 8位)) |
| 中文描述： | 一個系統(tǒng)評價芯片與8位CPU，一次性可編程（32968 × 8位），內(nèi)存（1024 × 8位）（系統(tǒng)評估大規(guī)模集成電路（集成8位的CPU，一次可編程ROM更新（32968 x 8位），內(nèi)存（1024 × 8位）） |
| 文件頁數(shù)： | 14/22頁 |
| 文件大?。?/td> | 879K |
| 代理商： | TMP90PM38 |
14/22
TOSHIBA CORPORATION
TMP90PM38
AC Measuring Conditions
Output level: High 2.2V/Low 0.8V, C
(However, CL = 100pF for AD0 ~ 7, A8 ~ 15, ALE, RD, WR)
Input level: High 2.4V/Low 0.45V (AD0 ~ AD7)
High 0.8V
CC
/Low 0.2V
High 0.8V
CC
/Low 0.2V
L
= 50pF
CC
CC
(excluding AD0 ~ AD7)
(excluding AD0 ~ AD7)
4.3 AC Characteristics
V
CC
= 5V
±
10% TA = -20 ~ 70
°
C (1 ~ 16MHz)
Symbol
Parameter
Variable
12.5MHz Clock
16MHz Clock
Unit
Min
Max
Min
Max
Min
Max
t
OSC
t
CYC
t
WH
t
WL
t
AL
t
LA
t
LL
t
LC
t
CL
t
ACL
t
ACH
t
CA
t
ADL
t
ADH
t
RD
t
RR
t
HR
t
RAE
t
WW
t
DW
t
WD
t
ACKH
t
ACKL
t
CKHA
t
CCK
t
CKHC
t
DCK
t
CWA
t
AWAL
t
WAH
t
AWAH
t
CPW
t
PRC
t
CPR
Oscillation cycle ( = x)
62.5
1000
80
–
62.5
–
ns
CLK Period
4x
4x
320
–
250
–
ns
CLK High width
2x - 40
–
120
–
85
–
ns
CLK Low width
A0 ~ 7 effective address
→
ALE fall
ALE fall
→
A0 ~ 7 hold
ALE Pulse width
ALE fall
→
RD/WR fall
RD/WR
→
ALE rise
A0 ~ 7 effective address
→
RD/WR fall
Upper effective address
→
RD/WR fall
RD/WR fall
→
Upper address hold
A0 ~ 7 effective address
→
Effective data input
Upper effective address
→
Effective data input
RD fall
→
Effective data input
RD Pulse width
RD rise
→
Data hold
RD rise
→
Address enable
WR pulse width
Effective data
→
WR rise
WR rise
→
Effective data hold
Upper address
→
CLK fall
Lower address
→
CLK fall
CLK fall
→
Upper address hold
RD/WR
→
CLK fall
CLK fall
→
RD/WR rise
Valid data CLK fall
RD/WR
fall
→
Valid WAIT
Lower address
→
Valid WAIT
CLK fall
→
Valid WAIT hold
Upper address
→
Valid WAIT
CLK fall
→
Port Data Output
Port Data Input
→
CLK fall
CLK fall
→
Port Data hold
2x - 40
–
120
–
85
–
ns
0.5x - 15
–
25
–
16
–
ns
0.5x - 15
–
25
–
16
–
ns
x - 40
–
40
–
23
–
ns
0.5x - 30
–
10
–
1
–
ns
0.5x - 20
–
20
–
11
–
ns
x - 25
–
55
–
38
–
ns
1.5x - 50
–
70
–
44
–
ns
0.5x - 20
–
20
–
11
–
ns
–
3.0x - 35
–
205
–
153
ns
–
3.5x - 55
–
225
–
164
ns
–
2.0x - 50
–
110
–
75
ns
2.0x - 40
–
120
–
85
–
ns
0
–
0
–
0
–
ns
x - 15
–
65
–
48
–
ns
2.0x - 40
–
120
–
85
–
ns
2.0x - 50
–
110
–
75
–
ns
0.5x - 10
–
30
–
21
–
ns
2.5x - 50
–
150
–
106
–
ns
2.0x - 50
–
110
–
75
–
ns
1.5x - 80
–
40
–
13
–
ns
x - 25
–
55
–
37
–
ns
x - 60
–
20
–
2
–
ns
x - 50
–
30
–
12
–
ns
–
x - 40
–
40
-
22
ns
–
2.0x - 70
–
90
-
55
ns
0
–
0
–
0
–
ns
–
2.5x - 70
-
130
–
86
ns
–
x + 200
-
280
–
262
ns
200
–
200
200
–
ns
100
–
100
100
–
ns
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