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參數(shù)資料
| 型號： | M27C512-45XF6X |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | PROM |
| 英文描述： | 64K X 8 UVPROM, 45 ns, CDIP28 |
| 封裝： | FRIT SEALED, WINDOWED, CERAMIC, DIP-28 |
| 文件頁數(shù)： | 18/18頁 |
| 文件大?。?/td> | 115K |
| 代理商： | M27C512-45XF6X |
9/18
M27C512
Table 11. Programming Mode AC Characteristics (1)
(TA =25 °C; VCC = 6.25V ± 0.25V; VPP = 12.75V ± 0.25V)
Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
2. Sampled only, not 100% tested.
Symbol
Alt
Parameter
Test Condition
Min
Max
Unit
tAVEL
tAS
Address Valid to Chip Enable Low
2
s
tQVEL
tDS
Input Valid to Chip Enable Low
2
s
tVCHEL
tVCS
VCC High to Chip Enable Low
2
s
tVPHEL
tOES
VPP High to Chip Enable Low
2
s
tVPLVPH
tPRT
VPP Rise Time
50
ns
tELEH
tPW
Chip Enable Program Pulse Width (Initial)
95
105
s
tEHQX
tDH
Chip Enable High to Input Transition
2
s
tEHVPX
tOEH
Chip Enable High to VPP Transition
2
s
tVPLEL
tVR
VPP Low to Chip Enable Low
2
s
tELQV
tDV
Chip Enable Low to Output Valid
1
s
tEHQZ
(2)
tDFP
Chip Enable High to Output Hi-Z
0
130
ns
tEHAX
tAH
Chip Enable High to Address Transition
0
ns
E is pulsed to VIL. The data to be programmed is
applied to 8 bits in parallel to the data output pins.
The levels required for the address and data in-
puts are TTL. VCC is specified to be 6.25V ±
0.25V. The M27C512 can use PRESTO IIB Pro-
gramming Algorithm that drastically reduces the
programming time (typically less than 6 seconds).
Nevertheless to achieve compatibility with all pro-
gramming equipments, PRESTO Programming
Algorithm can be used as well.
Programming
When delivered (and after each erasure for UV
EPROM), all bits of the M27C512 are in the ’1’
state. Data is introduced by selectively program-
ming ’0’s into the desired bit locations. Although
only ’0’s will be programmed, both ’1’s and ’0’s can
be present in the data word. The only way to
change a ’0’ to a ’1’ is by die exposure to ultraviolet
light (UV EPROM). The M27C512 is in the pro-
gramming mode when VPP input is at 12.75V and
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| M27C512-70C1 | 功能描述:可擦除可編程ROM 512K (64Kx8) 70ns RoHS:否 制造商:Maxim Integrated 類型: 存儲容量:1024 bit 組織:1 K x 1 接口類型: 工作電流:5 uA 編程電壓: 工作電源電壓:2.8 V to 6 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:TO-92 |
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| M27C512-70C6TR | 功能描述:電可擦除可編程只讀存儲器 512 KBIT 電可擦除可編程只讀存儲器 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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| M27C512-80XF1 | 功能描述:可擦除可編程ROM RO 511-M27C512-70XF RoHS:否 制造商:Maxim Integrated 類型: 存儲容量:1024 bit 組織:1 K x 1 接口類型: 工作電流:5 uA 編程電壓: 工作電源電壓:2.8 V to 6 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:TO-92 |
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