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參數(shù)資料
| 型號： | HM624256A |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 262144-word ×4-bit High Speed CMOS Static RAM(262144字 ×4位高速CMOS SRAM) |
| 中文描述： | 262144字× 4位高速CMOS靜態(tài)RAM（262144字× 4位高速CMOS SRAM的） |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 87K |
| 代理商： | HM624256A |
HM624256A Series
6
AC Characteristics
(Ta = 0 to +70
°
C, V
CC
= 5 V
±
10%, unless otherwise noted.)
Test Conditions
Input pulse levels: 0V to 3.0 V
Input rise and fall time: 4 ns
Input timing reference levels: 1.5 V
Output timing reference levels: 1.5 V
Output load: See figures
Output load (A)
Output load (B)
(For t
CHZ
, t
OHZ
,
t
CLZ
, t
OLZ
,
t
WHZ
and
t
OW
)
+ 5 V
480
30 pF
*1
255
Dout
+ 5 V
480
5 pF
*1
255
Dout
Note: 1. Including scope and jig
Read Cycle
HM624256A-20
HM624256A-25
HM624256A-35
Parameter
Symbol
Min
Max
Min
Max
Min
Max
Unit
Read cycle time
t
RC
20
—
25
—
35
—
ns
Address access time
t
AA
—
20
—
25
—
35
ns
Chip select access time
t
ACS
—
20
—
25
—
35
ns
Chip selection to output in low-Z
t
CLZ
*1
5
—
5
—
5
—
ns
Output enable to output valid
t
OE
—
10
—
12
—
15
ns
Output enable to output in low-Z
t
OLZ
*1
0
—
0
—
0
—
ns
Chip deselection to output in high-Z
t
CHZ
*1
0
10
0
12
0
15
ns
Chip disable to output in high-Z
t
OHZ
*1
0
10
0
10
0
10
ns
Output hold from address change
t
OH
5
—
5
—
5
—
ns
Chip selection to power up time
t
PU
0
—
0
—
0
—
ns
Chip deselection to power down time
Notes: 1. Transition is measured
±
200 mV from steady state voltage with Load (B). This parameter is
sampled not 100% tested.
t
PD
—
12
—
15
—
25
ns
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HM6264AFP-10 | Dual J-K Negative-Edge-Triggered Flip-Flops With Preset And Clear 16-CDIP -55 to 125 |
| HM6264AFP-10T | Dual J-K Negative-Edge-Triggered Flip-Flops With Preset And Clear 16-CFP -55 to 125 |
| HM6264AFP-12 | 8192-word x 8-bit High Speed CMOS Static RAM |
| HM6264AFP-12T | 8192-word x 8-bit High Speed CMOS Static RAM |
| HM6264AFP-15 | 8192-word x 8-bit High Speed CMOS Static RAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HM624256AJP-20 | 制造商:Hitachi 功能描述: 制造商:Hitachi 功能描述:Static RAM, 256Kx4, 28 Pin, Plastic, SOJ |
| HM624256AJP25T | 制造商:HITACHI 功能描述:New |
| HM624256ALJP20 | 制造商:HITCHI 功能描述: |
| HM624256ALP-20 | 制造商:Hitachi 功能描述: |
| HM624256JP-35 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x4 SRAM |
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