AT27C516-10 ATMEL Corporation, AT27C516-10 Datasheet - Page 7

• Manufacturer Part Number: AT27C516-10
• Description: 512K 32K x 16 OTP CMOS EPROM
• Manufacturer: ATMEL Corporation

AC Programming Characteristics
T
*AC Conditions of Test:
Notes: 1. V
Atmel’s 27C516 Integrated
Product Identification Code
Sym-
bol
t
t
t
t
t
t
t
t
t
t
t
t
Manufacturer
Device Type
A
Codes
AS
CES
OES
DS
AH
DH
DFP
VPS
VCS
PW
OE
PRT
= 25
Input Rise and Fall Times (10% to 90%)..............20 ns
Input Pulse Levels...................................0.45V to 2.4V
Input Timing Reference Level...................0.8V to 2.0V
Output Timing Reference Level................0.8V to 2.0V
2. This parameter is only sampled and is not 100%
3. Program Pulse width tolerance is 50 sec
Parameter
Address Setup Time
CE Setup Time
OE Setup Time
Data Setup Time
Address Hold Time
Data Hold Time
OE High to
Output Float Delay
V
V
PGM Program Pulse Width
Data Valid from OE
V
Programming
PP
CC
PP
5°C, V
and removed simultaneously or after V
tested. Output Float is defined as the point where
data is no longer driven — see timing diagram.
CC
Setup Time
Pulse Rise Time During
Setup Time
must be applied simultaneously or before V
A0 015-08 O7 O6 O5 O4 O3 O2 O1 O0
CC
0
1
= 6.5 0.25V, V
0
0
Test
Conditions*
(2)
0 0 0 1 1 1 1 0 001E
1 1 1 1 0 0 1 0 00F2
Pins
PP
(3)
(1)
= 13.0
47.5
Min
50
2
2
2
2
0
2
0
2
2
Limit
0.25V
PP
Max
52.5
130
150
.
5%.
Units
Data
Hex
PP
ns
ns
ns
s
s
s
s
s
s
s
s
s
Rapid Programming Algorithm
A 50 s PGM pulse width is used to program. The address
is set to the first location. V
raised to 13.0V. Each address is first programmed with
one 50 s PGM pulse without verification. Then a verifica-
tion / reprogramming loop is executed for each address.
In the event a word fails to pass verification, up to 10 suc-
cessive 50 s pulses are applied with a verification after
each pulse. If the word fails to verify after 10 pulses have
been applied, the part is considered failed. After the word
verifies properly, the next address is selected until all have
been checked. V
5.0V. All words are read again and compared with the
original data to determine if the device passes or fails.
PP
is then lowered to 5.0V and V
AT27C516
CC
is raised to 6.5V and V
3-151
CC
PP
to
is