AT27BV1024-15VI

AT27BV1024
7
Programming Waveforms
(1)
Notes: 1. The Input Timing Reference is 0.8V for V
IL
and 2.0V for V
IH
.
2. t
OE
and t
DFP
are characteristics of the device but must be accommodated by the programmer.
3. When programming the AT27BV1024 a 0.1
µ
F capacitor is required across V
PP
and ground to suppress spurious voltage
transients.
DC Programming Characteristics
TA = 25
±
5
°
C, V
CC
= 6.5
±
0.25V, V
PP
= 13.0
±
0.25V
Symbol Parameter Test Conditions
Limits
UnitsMin Max
I
LI
Input Load Current V
IN
= V
IL
, V
IH
±
10
µ
A
V
IL
Input Low Level -0.6 0.8 V
V
IH
Input High Level 2.0 V
CC
+ 0.1 V
V
OL
Output Low Voltage I
OL
= 2.1 mA 0.4 V
V
OH
Output High Voltage I
OH
= -400
µ
A2.4 V
I
CC2
V
CC
Supply Current (Program and Verify) 50 mA
I
PP2
V
PP
Supply Current CE = PGM = V
IL
30 mA
V
ID
A9 Product Identification Voltage 11.5 12.5 V
AT27BV1024
8
Notes: 1. V
CC
must be applied simultaneously or before V
PP
and removed simultaneously or after V
PP
.
2. This parameter is only sampled and is not 100% tested. Output Float is defined as the point where data is no longer driven—
see timing diagram.
3. Program Pulse width tolerance is 100
µsec
±
5%.
Note: 1. The AT27BV1024 has the same Product Identification Code as the AT27C1024. Both are programming compatible.
AC Programming Characteristics
TA = 25
±
5
°
C, V
CC
= 6.5
±
0.25V, V
PP
= 13.0
±
0.25V
Symbol Parameter Test Conditions
(1)
Limits
UnitsMin Max
t
AS
Address Setup Time
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
µ
s
t
CES
CE Setup Time 2
µ
s
t
OES
OE Setup Time 2
µ
s
t
DS
Data Setup Time 2
µ
s
t
AH
Address Hold Time 0
µ
s
t
DH
Data Hold Time 2
µ
s
t
DFP
OE High to Output Float Delay
(2)
0 130 ns
t
VPS
V
PP
Setup Time 2
µ
s
t
VCS
V
CC
Setup Time 2
µ
s
t
PW
PGM Program Pulse Width
(3)
95 105
µ
s
t
OE
Data Valid from OE 150 ns
t
PRT
V
PP
Pulse Rise Time During
Programming
50 ns
Atmel’s 27BV1024 Integrated Product Identification Code
(1)
Codes
Pins
Hex
DataA0 O15-O8 O7 O6 O5 O4 O3 O2 O1 O0
Manufacturer 0000011110001E
Device Type 101111000100F1
AT27BV1024
9
Rapid
Programming Algorithm
A 100
µ
s PGM pulse width is used to program. The
address is set to the first location. V
CC
is raised to 6.5V and
V
PP
is raised to 13.0V. Each address is first programmed
with one 100
µ
s PGM
pulse without verification. Then a
verification / reprogramming loop is executed for each
address. In the event a word fails to pass verification, up to
10 successive 100
µ
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
PP
is then lowered to 5.0V and V
CC
to
5.0V. All words are read again and compared with the orig-
inal data to determine if the device passes or fails.

AT27BV1024-15VI

Mfr. #:
Manufacturer:
Description:
IC EPROM 1M PARALLEL 40VSOP
Lifecycle:
New from this manufacturer.
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