AT27C512R-12 ATMEL Corporation, AT27C512R-12 Datasheet - Page 5

• Manufacturer Part Number: AT27C512R-12
• Description: 512K 64K x 8 OTP CMOS EPROM
• Manufacturer: ATMEL Corporation

For -70, -90, -12, -15,
and -20 devices:
AC Waveforms for Read Operation
Notes: 1. Timing measurement reference level is 1.5V for -45 and
Input Test Waveforms and Measurement Levels
For -45 and -55 devices
only:
Pin Capacitance
Note:
C
C
IN
OUT
2. OE/V
1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
-55 devices. Input AC drive levels are V
V
all other speed grades are V
2.0V. Input AC drive levels are V
2.4V.
edge of CE without impact on t
IH
= 3.0V. Timing measurement reference levels for
PP
may be delayed up to t
Typ
4
8
(f = 1 MHz T = 25°C)
OL
t
t
CE
= 0.8V and V
CE
R
R
IL
, t
, t
- t
.
= 0.45V and V
F
F
OE
< 5 ns (10% to 90%)
< 20 ns (10% to 90%)
after the falling
IL
= 0.0V and
Max
12
6
OH
=
(1)
(1)
IH
=
3. OE/V
4. This parameter is only sampled and is not 100% tested.
5. Output float is defined as the point when data is no longer
address is valid without impact on t
driven.
PP
Units
may be delayed up to t
pF
pF
AT27C512R
Note: CL = 100 pF including jig capaci-
Conditions
V
V
IN
OUT
tance, except for the -45 and -55
devices, where CL = 30 pF.
Output Test Load
ACC
= 0V
= 0V
ACC
- t
OE
.
after the
3-139