IDT79R304120PF 查看數據表（PDF） - Integrated Device Technology
零件编号
产品描述 (功能)
生产厂家
IDT79R304120PF Datasheet PDF : 34 Pages
| |||
IDT79R3041 INTEGRATED RISController FOR LOW COST SYSTEMS
COMMERCIAL TEMPERATURE RANGE
AC ELECTRICAL CHARACTERISTICS R3041 (CONT.)
16.67MHz
20MHz
25MHz
33MHz
Symbol
t45
t46
t47
t48
t49
t50
t51
t52
Signals
ExtDataEn
ExtDataEn
IOStrobe
ExtDataEn, DataEn
ExtDataEn
MemStrobe
MemStrobe
MemStrobe
Description
Tri-state from SysClk rising
(after driven condition)
Driven from SysClk falling
(after driven condition)
Valid from SysClk falling
Asserted from SysClk rising
Negated from SysClk rising
Asserted from SysClk rising
Negated from SysClk falling
Asserted from Addr(3:0) valid(4)
Min. Max. Min. Max. Min. Max. Min. Max. Unit
—
13 —
10 —
10 —
10 ns
—
13 —
10 —
10 —
10 ns
—
10 —
8
—
7
—
7
ns
—
15 —
12 —
9
—
9
ns
—
9
—
7
—
6
—
6
ns
—
19 —
15 —
15 —
15 ns
—
19 —
15 —
15 —
15 ns
0
—
0
—
0
—
0
— ns
tderate All outputs
Timing deration for loading
over 25pF(4, 5)
—
0.5 —
0.5 —
0.5 —
0.5 ns/
25pF
NOTES:
2905 tbl 12
1. All timings referenced to 1.5 Volts, with a rise and fall time of less than 2.5ns.
2. All outputs tested with 25pF loading.
3. The AC values listed here reference timing diagrams contained in the R3041 Hardware User's Manual.
4. Guaranteed by design.
5. This parameter is used to derate the AC timings according to the loading of the system. This parameter provides a deration for loads over the specified
test condition; that is, the deration factor is applied for each 25pF over the specified test load condition.
6. Timings t34 - t44 are reserved for other RISController family members.
ABSOLUTE MAXIMUM RATINGS(1, 3) RV3041
Symbol
Rating
Commercial Unit
VTERM Terminal Voltage with
Respect to GND
–0.5 to +7.0 V
TC
Operating Case Temperature 0 to +85
°C
TBIAS Temperature Under Bias
–55 to +125 °C
TSTG Storage Temperature
–55 to +125 °C
VIN
Input Voltage
–0.5 to +7.0 V
NOTES:
2905 tbl 06
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS
may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at these or any other conditions
above those indicated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended
periods may affect reliability.
2. VIN minimum = –3.0V for pulse width less than 15ns.
VIN should not exceed VCC +0.5 Volts.
3. Not more than one output should be shorted at a time. Duration of the short
should not exceed 30 seconds.
RECOMMENDED OPERATING
TEMPERATURE AND SUPPLY VOLTAGE
Grade
Commercial
RV3041
Temperature
0°C to +85°C
(Case)
GND
0V
VCC
3.3 ±5%
2905 tbl 07
OUTPUT LOADING FOR AC TESTING
+4mA
VREF -
+
+1.5V
To Device
Under Test
CLD
AC TEST CONDITIONS RV3041
Symbol
Parameter
Min.
VIH
Input HIGH Voltage
3.0
VIL
Input LOW Voltage
—
VIHS
Input HIGH Voltage
3.0
VILS
Input LOW Voltage
—
Max.
—
0
—
0
Unit
V
V
V
V
2905 tbl 08
Signal
All Signals
-4mA
2905 drw 07
Cld
25 pF
2905 tbl 09
16
Share Link: 