AT27C020-55JI ATMEL [ATMEL Corporation], AT27C020-55JI Datasheet - Page 5

• Manufacturer Part Number: AT27C020-55JI
• Description: 2-Megabit 256K x 8 OTP EPROM
• Manufacturer: ATMEL [ATMEL Corporation]

AC Waveforms for Read Operation
Notes:
Input Test Waveforms and Measurement Levels
For -55 devices only:
t
For -70,-90,-12,-15 devices only:
t
Pin Capacitance
f = 1 MHz, T = 25 C
Note:
R
R
C
C
, t
, t
IN
OUT
F
F
< 5 ns (10% to 90%)
< 20 ns (10% to 90%)
1.
2.
3.
4.
5.
1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
DRIVING
LEVELS
Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.
OE may be delayed up to t
OE may be delayed up to t
This parameter is only sampled and is not 100% tested.
Output float is defined as the point when data is no longer driven.
AC
(1)
3.0V
0.0V
1.5V
Typ
4
8
CE
ACC
- t
- t
OE
OE
after the falling edge of CE without impact on t
after the address is valid without impact on t
AC
MEASUREMENT
LEVEL
(1)
Max
12
8
Units
ACC
pF
pF
CE.
Output Test Load
Note:
.
1.
CL = 100 pF including jig
capacitance except -55
devices where CL = 30 pF.
Conditions
V
V
OUT
IN
= 0V
= 0V
(1)
5