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参数资料
| 型号： | WME128K8-250CMA |
| 厂商： | MICROSEMI CORP-PMG MICROELECTRONICS |
| 元件分类： | PROM |
| 英文描述： | 128K X 8 EEPROM 5V, 250 ns, CDIP32 |
| 封装： | 0.600 INCH, HERMETIC SEALED, SINGLE CAVITY, SIDE BRAZED, CERAMIC, DIP-32 |
| 文件页数： | 5/11页 |
| 文件大小： | 320K |
| 代理商： | WME128K8-250CMA |
3
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
WME128K8-XXX
January 2008
Rev. 6
White Electronic Designs Corp. reserves the right to change products or specications without notice.
READ
Figure 3 shows Read cycle waveforms. A read cycle begins
with selection address, chip select and output enable. Chip
select is accomplished by placing the CS# line low. Output
enable is done by placing the OE# line low. The memory
places the selected data byte on I/O0 through I/O7 after
the access time. The output of the memory is placed in a
high impedance state shortly after either the OE# line or
CS# line is returned to a high level.
FIGURE 3 – READ WAVEFORMS
t
ADDRESS
CS#
OE#
OUTPUT
OH
tDF
tACC
t RC
t OE
tACS
OUTPUT
VALID
ADDRESS VALID
HIGH Z
NOTE:
OE# may be delayed up to tACS- tOE after the falling edge of CS#
without impact on tOE or by tACC- tOE after an address change without impact on tACC.
AC READ CHARACTERISTICS
(See Figure 3)
VCC = 5.0V, VSS = 0V, -55°C ≤ TA ≤ +125°C
Read Cycle Parameter
Symbol
-125
-140
-150
-200
-250
-300
Unit
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Read Cycle Time
tRC
125
140
150
200
250
300
ns
Address Access Time
tACC
125
140
150
200
250
300
ns
Chip Select Access Time
tACS
125
140
150
200
250
300
ns
Output Hold from Address
Change, OE# or CS#
tOH
000000
ns
Output Enable to Output Valid
tOE
55
85
ns
Chip Select or OE# to High
Z Output
tDF
63
70
ns
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| WMF128K8-150DEM5 | 128K X 8 FLASH 5V PROM, 150 ns, CDSO32 |
| WMF128K8-150FFM5 | 128K X 8 FLASH 5V PROM, 150 ns, CDSO32 |
| WMF128K8-50DEC5 | 128K X 8 FLASH 5V PROM, 50 ns, CDSO32 |
| WMF128K8-60CM5 | 128K X 8 FLASH 5V PROM, 60 ns, CDIP32 |
| WMF128K8-90FEQ5 | 128K X 8 FLASH 5V PROM, 90 ns, CDFP32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| WME128K8-250CQ | 制造商:WEDC 制造商全称:White Electronic Designs Corporation 功能描述:128Kx8 CMOS MONOLITHIC EEPROM, SMD 5962-96796 |
| WME128K8-250CQA | 制造商:WEDC 制造商全称:White Electronic Designs Corporation 功能描述:128Kx8 CMOS MONOLITHIC EEPROM, SMD 5962-96796 |
| WME128K8-250DEC | 制造商:Microsemi Corporation 功能描述:128K X 8 EEPROM MONOLITHIC, 250NS, 32 CSOJ EVOL., COMMERCIAL - Bulk |
| WME128K8-250DECA | 制造商:WEDC 制造商全称:White Electronic Designs Corporation 功能描述:128Kx8 CMOS MONOLITHIC EEPROM, SMD 5962-96796 |
| WME128K8-250DEI | 制造商:Microsemi Corporation 功能描述:128K X 8 EEPROM MONOLITHIC, 250NS, 32 CSOJ EVOL., INDUSTRIAL - Bulk |
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