參數(shù)資料
型號(hào)： TMP90PH44
廠商： Toshiba Corporation
英文描述： A System Evaluation LSI With 8-Bit CPU,One-Time PROM(16384 x 8-Bit),RAM(512 x 8-Bit)(系統(tǒng)評(píng)估大規(guī)模集成電路（集成8位CPU，一次可編程ROM(16384 x 8位),RAM(512 x 8位))
中文描述： 一個(gè)系統(tǒng)評(píng)價(jià)芯片與8位CPU，一次性可編程（16384 × 8位），內(nèi)存（512 × 8位）（系統(tǒng)評(píng)估大規(guī)模集成電路（集成8位的CPU，一次可編程ROM更新（16384 x 8位），內(nèi)存（512 × 8位））
文件頁數(shù)： 11/20頁
文件大小： 560K
代理商： TMP90PH44
TOSHIBA CORPORATION
11/20
TMP90PH44
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
Oscillation cycle ( = x)
80
1000
80
–
62.5
–
ns
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
CLK Period
4x
4x
320
–
250
–
ns
CLK High width
2x - 40
–
120
–
85
–
ns
CLK Low width
2x - 40
–
120
–
85
–
ns
A0 ~ 7 effective address
→
A0 ~ 7 hold
ALE Pulse width
→
ALE fall
0.5x - 15
–
25
–
16
–
ns
ALE fall
0.5x - 15
–
25
–
16
–
ns
x - 40
–
40
–
23
–
ns
ALE fall RD/WR fall
→
A0 ~ 7 effective address
0.5x - 30
–
10
–
1
–
ns
RD/WR
ALE rise
0.5x - 20
–
20
–
11
–
ns
→
→
RD/WR fall
x - 25
–
55
–
38
–
ns
Upper effective address
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
RD/WR fall
1.5x - 50
–
70
–
44
–
ns
0.5x - 20
–
20
–
11
–
ns
–
3.0x - 35
–
205
–
153
ns
–
3.5x - 55
–
225
164
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
4.4 A/D Conversion Characteristics
V
CC
= 5V
±
10% TA = -020 ~ 70
°
C
f = 1 ~ 16MHz
Symbol
Parameter
Condition
Min
Max
Unit
V
REF
A
GND
V
AIN
IREF
Analog reference voltage
Vcc - 1.5
Vcc
Vcc
V
Analog reference voltage
Vss
Vss
Vss
Analog input voltage range
Vss
–
Vcc
Supply current for analog reference voltage
–
0.5
1.0
mA
Error
(Quantize
error of
±
0.5
LSB not
included)
Total error
(TA = 25
°
C, Vcc = V
REF
= 5.0V)
–
–
1.0
LSB
Total error
–
–
2.5
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