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參數(shù)資料
| 型號(hào)： | AT27C256R-90 |
| 廠商： | Atmel Corp. |
| 英文描述： | 256K 32K x 8 OTP CMOS EPROM |
| 中文描述： | 256K 32K的× 8檢察官辦公室的CMOS存儲(chǔ)器 |
| 文件頁數(shù)： | 5/9頁 |
| 文件大?。?/td> | 251K |
| 代理商： | AT27C256R-90 |
Pin Capacitance
(f = 1MHz, T = 25°C)
(1)
Typ
4
8
Max
6
12
Units
pF
pF
Conditions
V
IN
= 0V
V
OUT
= 0V
C
IN
C
OUT
Note:
1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
AC Waveforms for Read Operation
(1)
Notes: 1. Timing measurement reference level is 1.5V for -45
and -55 devices. Input AC drive levels are V
IL
=
0.0V and V
IH
= 3.0V. Timing measurement refer-
ence levels for all other speed grades are V
OL
=
0.8V and V
OH
= 2.0V. Input AC drive levels are V
IL
= 0.45V and V
IH
= 2.4V.
2. OE may be delayed up to t
CE
- t
OE
after the falling
edge of CE without impact on t
CE
.
3. OE may be delayed up to t
ACC
- t
OE
after the address is valid
without impact on t
ACC
.
4. This parameter is only sampled and is not 100% tested.
5. Output float is defined as the point when data is no longer
driven.
Input Test Waveforms and Measurement Levels
t
R
, t
F
< 5 ns (10% to 90%)
For -45 and -55 devices only:
For -70, -90, -12, and -15 devices:
Output Test Load
Note:
C
L
= 100 pF including jig
capacitance, except for
the -45 and -55 devices,
where C
L
= 30 pF.
t
R
, t
F
< 20 ns (10% to 90%)
AT27C256R
3-129
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT27C256R-90JC | 256K 32K x 8 OTP CMOS EPROM |
| AT27C256R-90JI | 256K 32K x 8 OTP CMOS EPROM |
| AT27C400 | 4-Megabit 256K x 16 or 512K x 8 OTP EPROM |
| AT27C400-12 | AML42 Series, Solid State Indicator, Square, Compact Style, Lighted, 1 LED, Snap in panel mount |
| AT27C400-12PC | 4-Megabit 256K x 16 or 512K x 8 OTP EPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT27C256R-90DC | 制造商:Atmel Corporation 功能描述:32K X 8 UVPROM, 90 ns, CDIP28 |
| AT27C256R-90DI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EPROM |
| AT27C256R-90DM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EPROM |
| AT27C256R-90DM/883 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EPROM |
| AT27C256R-90JA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EPROM |
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