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參數(shù)資料
| 型號： | AT27C256R-55TI |
| 廠商： | ATMEL CORP |
| 元件分類： | DRAM |
| 英文描述： | 256K 32K x 8 OTP CMOS EPROM |
| 中文描述： | 32K X 8 OTPROM, 55 ns, PDSO28 |
| 封裝： | PLASTIC, TSOP-28 |
| 文件頁數(shù)： | 5/9頁 |
| 文件大?。?/td> | 251K |
| 代理商： | AT27C256R-55TI |
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
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| AT27C256R-70 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:256K 32K x 8 OTP CMOS EPROM |
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| AT27C256R-70DI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EPROM |
| AT27C256R-70DM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EPROM |
| AT27C256R-70DM/883 | 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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