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参数资料
| 型号： | P4C1281-25DC |
| 厂商： | PYRAMID SEMICONDUCTOR CORP |
| 元件分类： | SRAM |
| 英文描述： | 64K X 4 STANDARD SRAM, 25 ns, CDIP28 |
| 封装： | 0.300 INCH, CERAMIC, DIP-28 |
| 文件页数： | 8/11页 |
| 文件大小： | 862K |
| 代理商： | P4C1281-25DC |
P4C1281/P4C1282 - ULTRA HIGH SPEED 64K x 4 CMOS STATIC RAMS
Page 6
Document # SRAM136 REV OR
AC TEST COnDITIOnS
TRUTH TABLE
P4C1281 (P4C1282)
Input Pulse Levels
GND to 3.0V
Input Rise and Fall Times
3ns
Input Timing Reference Level
1.5V
Output Timing Reference Level
1.5V
Output Load
See Figures 1 and 2
Mode
CE
WE
I/O
Power
Standby
H
x
High Z
Standby
Read
L
H
D
OUT
Active
Write
L
D
IN (High Z)
Active
Figure 1. Output Load
Figure 2. Thevenin Equivalent
* including scope and test fixture.
note:
Because of the ultra-high speed of the P4C1281 and P4C1282, care
must be taken when testing this device; an inadequate setup can cause
a normal functioning part to be rejected as faulty. Long high-inductance
leads that cause supply bounce must be avoided by bringing the V
CC
and ground planes directly up to the contactor fingers. A 0.01 F high
frequency capacitor is also required between V
CC and ground. To avoid
signalreflections,properterminationmustbeused;forexample,a50test
environment should be terminated into a 50 load with 1.73V (Thevenin
Voltage) at the comparator input, and a 116 resistor must be used in
series with D
OUT to match 166 (Thevenin Resistance).
相关PDF资料 |
PDF描述 |
|---|---|
| P4C1281-35PMB | 64K X 4 STANDARD SRAM, 35 ns, PDIP28 |
| P4C168-15DC | x4 SRAM |
| P4C170-12DC | 3-1/2 Digit A/D, w/ LED Driver, 0C to +70C, 40-PDIP, TUBE |
| P4C170-15DC | x4 SRAM |
| P4C170-20DC | x4 SRAM |
相关代理商/技术参数 |
参数描述 |
|---|---|
| P4C1281-25JC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x4 SRAM |
| P4C1281-25LC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x4 SRAM |
| P4C1281-25LM | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x4 SRAM |
| P4C1281-25LMB | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x4 SRAM |
| P4C1281-25PC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x4 SRAM |
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