參數(shù)資料
型號: AT27C256R-70JC
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, 70 ns, PQCC32
封裝: PLASTIC, MS-016AE, LCC-32
文件頁數(shù): 5/9頁
文件大?。?/td> 251K
代理商: AT27C256R-70JC
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-70JI High-Speed CMOS Logic Phase-Locked Loop with VCO 16-SO -40 to 85
AT27C256R-70PC 256K 32K x 8 OTP CMOS EPROM
AT27C256R-70PI High-Speed CMOS Logic Phase-Locked Loop with VCO 16-SO -40 to 85
AT27C256R-70RC 256K 32K x 8 OTP CMOS EPROM
AT27C256R-70RI High-Speed CMOS Logic Phase-Locked Loop with VCO 16-TSSOP -40 to 85
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