OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

AT27BV020-90VC

P1-P3P4-P6P7-P9P10-P12
AT27BV020
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 AT27BV020 a 0.1 µF capacitor is required across V
PP
and ground to suppress spurious voltage
transients.
DC Programming Characteristics
T
A
= 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 µA
V
IL
Input Low Level -0.6 0.8 V
V
IH
Input High Level 2.0 V
CC
+ 0.5 V
V
OL
Output Low Voltage I
OL
= 2.1 mA 0.4 V
V
OH
Output High Voltage I
OH
= -400=µA 2.4 V
I
CC2
V
CC
Supply Current
(Program and Verify)
40 mA
I
PP2
V
PP
Supply Current CE = PGM = V
IL
20 mA
V
ID
A9 Product
Identification Voltage
11.5 12.5 V
AT27BV020
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 AT27BV020 has the same Product Identification Code as the AT27C020. Both are programming compatible.
AC Programming Characteristics
T
A
= 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%) 20ns
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
2µs
t
CES
CE Setup Time 2 µs
t
OES
OE Setup Time 2 µs
t
DS
Data Setup Time 2 µs
t
AH
Address Hold Time 0 µs
t
DH
Data Hold Time 2 µs
t
DFP
OE High to Output Float Delay
(3)
0 130 ns
t
VPS
V
PP
Setup Time 2 µs
t
VCS
V
CC
Setup Time 2 µs
t
PW
PGM Program Pulse Width
(2)
95 105 µs
t
OE
Data Valid from OE 150 ns
t
PRT
V
PP
Pulse Rise Time During
Programming
50 ns
Atmel’s 27BV020 Integrated Product Identification Code
(1)
Codes
Pins
Hex
DataA0 O7 O6 O5 O4 O3 O2 O1 O0
Manufacturer 0000111101E
Device Type 11000011086
AT27BV020
9
Rapid
Programming Algorithm
A 100 µs 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 µs PGM
pulse without verification. Then a
verification/reprogramming loop is executed for each
address. In the event a byte fails to pass verification, up to
10 successive 100
µs pulses are applied with a verification
after each pulse. If the byte fails to verify after 10 pulses
have been applied, the part is considered failed. After the
byte 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 bytes are read again and compared with the origi-
nal data to determine if the device passes or fails.
P1-P3P4-P6P7-P9P10-P12

AT27BV020-90VC

Mfr. #:
Buy AT27BV020-90VC
Manufacturer:
Description:
IC EPROM 2M PARALLEL 32VSOP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet