參數(shù)資料
型號: Intel387 sx
廠商: Intel Corp.
英文描述: SX Math Coprocessor(32位數(shù)學(xué)協(xié)處理器)
中文描述: 山西數(shù)學(xué)協(xié)處理器(32位數(shù)學(xué)協(xié)處理器)
文件頁數(shù): 34/47頁
文件大?。?/td> 443K
代理商: INTEL387 SX
Intel387
TM
SX MATH COPROCESSOR
7.2 D.C. Characteristics
Table 7-1. D.C. Specifications
T
C
e
0
§
C to
a
100
§
C, V
CC
e
5V
g
10%
Symbol
Parameter
Min
Max
Units
Test Conditions
V
IL
V
IH
V
CL
Input LO Voltage
Input HI Voltage
CPUCLK2 and NUMCLK2
Input LO Voltage
CPUCLK2 and NUMCLK2
Input HI Voltage
b
0.3
2.0
a
0.8
V
CC
a
0.3
V
V
(Note 1)
(Note 1)
b
0.3
a
0.8
V
V
CH
V
CC
b
0.8
V
CC
a
0.8
V
V
OL
V
OH
V
OH
Output LO Voltage
Output HI Voltage
Output HI Voltage
0.45
V
V
V
(Note 2)
(Note 3)
(Note 4)
2.4
V
CC
b
0.8
I
CC
Power Supply Current
Dynamic Mode
Freq.
e
33 MHz
(5)
Freq.
e
25 MHz
(5)
Freq.
e
20 MHz
(5)
Freq.
e
16 MHz
(5)
Freq.
e
1 MHz
(5)
Idle Mode
(6)
150
150
125
100
20
7
mA
mA
mA
mA
mA
mA
I
CC
typ.
e
135 mA
I
CC
typ.
e
130 mA
I
CC
typ.
e
110 mA
I
CC
typ.
e
90 mA
I
CC
typ.
e
5 mA
I
CC
typ.
e
4 mA
0V
s
V
IN
s
V
CC
0.45V
s
V
O
s
V
CC
f
c
e
1 MHz
f
c
e
1 MHz
f
c
e
1 MHz
I
LI
I
LO
Input Leakage Current
I/O Leakage Current
g
15
g
15
m
A
m
A
C
IN
C
O
C
CLK
Input Capacitance
I/O Capacitance
Clock Capacitance
7
7
7
10
12
20
pF
pF
pF
NOTES:
1. This parameter is for all inputs, excluding the clock inputs.
2. This parameter is measured at I
OL
as follows:
Data
e
4.0 mA
READYO
Y
, ERROR
Y
, BUSY
Y
, PEREQ
e
25 mA
3. This parameter is measured at I
OH
as follows:
Data
e
1.0 mA
READYO
Y
, ERROR
Y
, BUSY
Y
, PEREQ
e
0.6 mA
4. This parameter is measured at I
OH
as follows:
Data
e
0.2 mA
READYO
Y
, ERROR
Y
, BUSY
Y
PEREQ
e
0.12 mA
5. Synchronous Clock Mode (CKM
e
1). I
CC
is measured at steady state, maximum capacitive loading on the outputs, and
worst-case D.C. level at the inputs.
6. Intel387 SX Math CoProcessor Internal Idle Mode. Synchronous clock mode, clock and control inputs are active but the
Math CoProcessor is not executing an instruction. Outputs driving CMOS inputs.
34
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