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参数资料
| 型号： | WS27C256L-12DMB |
| 元件分类： | PROM |
| 英文描述： | 32K X 8 UVPROM, 120 ns, CDIP28 |
| 封装： | 0.600 INCH, CERDIP-28 |
| 文件页数： | 4/5页 |
| 文件大小： | 50K |
| 代理商： | WS27C256L-12DMB |
PROGRAMMING INFORMATION
DC CHARACTERISTICS (T
A = 25 ± 5°C, VCC = 6.0 ± 0.25 V, VPP = 12.5 ± 0.5 V. See Notes 8, 9 and 10)
SYMBOLS
PARAMETER
MIN
MAX
UNITS
ILI
Input Leakage Current (VIN = VCC or Gnd)
–10
10
A
IPP
VPP Supply Current During
60
mA
Programming Pulse (CE/PGM = VIL)
ICC
VCC Supply Current
40
mA
VIL
Input Low Voltage
–0.1
0.8
V
VIH
Input High Voltage
2.0
VCC + 0.3
V
VOL
Output Low Voltage During Verify (IOL = 2.1 mA)
0.4
V
VOH
Output High Voltage During Verify (IOH = –400 A)
3.5
V
SYMBOLS
PARAMETER
MIN
TYP
MAX
UNITS
tAS
Address Setup Time
2
s
tCOH
CE High to OE High
2
s
tOES
Output Enable Setup Time
2
s
tOS
Data Setup Time
2
s
tAH
Address Hold Time
0
s
tOH
Data Hold Time
2
s
tDF
Chip Disable to Output Float Delay
0
55
ns
tOE
Data Valid From Output Enable
55
ns
tVS
VPP Setup Time
2
s
tPW
PGM Pulse Width
500
1000
s
tOCX
OE Low to CE "Don't Care"
2
s
WS27C256L
4-22
NOTES: 8. VCC must be applied either coincidentally or before VPP and removed either coincidentally or after VPP.
9. VPP must not be greater than 14 volts including overshoot. During CE/PGM = VIL, VPP must not be switched from 5 volts
to 12.5 volts or vice-versa.
10. During power up the CE/PGM pin must be brought high (
≥ V
IH) either coincident with or before power is applied to VPP.
AC CHARACTERISTICS (T
A = 25 ± 5°C, VCC = 6.0 ± 0.25 V, VPP = 12.5 ± 0.5 V)
PROGRAMMING WAVEFORM
ADDRESS STABLE
ADDRESSES
VPP
VCC
CE/PGM
DATA
tAS
tPW
tOS
tOH
tOE
tAH
tDF
tVS
tCES
tOES
tOCX
tCOH
DATA OUT
DATA IN STABLE
OE
VIH
VIL
VIH
VIL
VALID
HIGH Z
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相关代理商/技术参数 |
参数描述 |
|---|---|
| WS27C256L-12TMB | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Military 32K x 8 CMOS EPROM |
| WS27C256L-15 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Military 32K x 8 CMOS EPROM |
| WS27C256L-15DMB | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Military 32K x 8 CMOS EPROM |
| WS27C256L-15TMB | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Military 32K x 8 CMOS EPROM |
| WS27C256L-20 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Military 32K x 8 CMOS EPROM |
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