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参数资料
| 型号： | CY7C4205-10ACT |
| 厂商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分类： | FIFO |
| 英文描述： | 256 X 18 OTHER FIFO, 8 ns, PQFP64 |
| 封装： | 14 X 14 MM, PLASTIC, TQFP-64 |
| 文件页数： | 20/25页 |
| 文件大小： | 412K |
| 代理商： | CY7C4205-10ACT |
CY7C4425/4205/4215
CY7C4225/4235/4245
4
Maximum Ratings
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Storage Temperature
....................................65
°C to +150°C
Ambient Temperature with
Power Applied
.................................................55
°C to +125°C
Supply Voltage to Ground Potential
.................0.5V to +7.0V
DC Voltage Applied to Outputs
in High Z State
.....................................................0.5V to +7.0V
DC Input Voltage
.................................................3.0V to +7.0V
Output Current into Outputs (LOW)............................. 20 mA
Static Discharge Voltage ........................................... >2001V
(per MIL-STD-883, Method 3015)
Latch-Up Current ..................................................... >200 mA
RXI
Read Expansion
Input
I
Cascaded - Connected to RXO of previous device.
Not Cascaded - Tied to VSS.
RXO
Read Expansion
Output
O
Cascaded - Connected to RXI of next device.
RS
Reset
I
Resets device to empty condition. A reset is required before an initial read or write
operation after power-up.
OE
Output Enable
I
When OE is LOW, the FIFO’s data outputs drive the bus to which they are con-
nected. If OE is HIGH, the FIFO’s outputs are in High Z (high-impedance) state.
VCC/SMODE Synchronous
Almost Empty/
Almost Full Flags
I
Dual-Mode Pin
Asynchronous Almost Empty/Almost Full flags - tied to VCC.
Synchronous Almost Empty/Almost Full flags - tied to VSS.
(Almost Empty synchronized to RCLK, Almost Full synchronized to WCLK.)
Pin Definitions (continued)
Signal Name
Description
I/O
Function
Operating Range
Range
Ambient
Temperature
VCC
Commercial
0
°C to +70°C
5V
± 10%
Industrial[1]
40
°C to +85°C
5V
± 10%
Electrical Characteristics Over the Operating Range[2]
Parameter
Description
Test Conditions
7C42X5-10
7C42X5-15
7C42X5-25
7C42X5-35
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Unit
VOH
Output HIGH Voltage
VCC = Min.,
IOH = 2.0 mA
2.4
V
VOL
Output LOW Voltage
VCC = Min.,
IOL = 8.0 mA
0.4
V
VIH
[3]
Input HIGH Voltage
2.2
VCC
2.2
VCC
2.2
VCC
2.2
VCC
V
VIL
[3]
Input LOW Voltage
3.0
0.8
3.0
0.8
3.0
0.8
3.0
0.8
V
IIX
Input Leakage
Current
VCC = Max.
10
+10
10
+10
10
+10
10
+10
A
IOS
[4]
Output Short
Circuit Current
VCC = Max.,
VOUT = GND
90
mA
IOZL
IOZH
Output OFF,
High Z Current
OE > VIH,
VSS < VO < VCC
10
+10
10
+10
10
+10
10
+10
A
ICC2
[5]
Operating Current
VCC = Max.,
IOUT = 0 mA
Com’l
45
mA
Ind
50
mA
ISB
[6]
Standby Current
VCC = Max.,
IOUT = 0 mA
Com’l
10
mA
Ind
15
mA
Notes:
1.
TA is the “instant on” case temperature.
2.
See the last page of this specification for Group A subgroup testing information.
3.
The VIH and VIL specifications apply for all inputs except WXI, RXI. The WXI, RXI pin is not a TTL input. It is connected to either RXO, WXO of the
previous device or VSS.
4.
Test no more than one output at a time for not more than one second.
5.
Input signals switch from 0V to 3V with a rise/fall time less than 3 ns, clocks and clock enables switch at 20 MHz, while the data inputs switch at 10 MHz.
Outputs are unloaded.
6.
All input signals are connected to VCC. All outputs are unloaded.
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