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AT27LV256A-90TU

P1-P3P4-P6P7-P9P10-P12P13-P15
10
0547G–EPROM–12/07
AT27LV256A
18. Rapid
Programming Algorithm
A 100 µs CE 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
CE
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 original data to determine if the device passes or fails.
11
0547G–EPROM–12/07
AT27LV256A
19. Ordering Information
Note: 1. The 28-pin SOIC package is not recommended for new designs.
19.1 Standard Package
t
ACC
(ns)
I
CC
(mA)
Ordering Code Package Operation RangeActive Standby
55 8 0.02 AT27LV256A-55JI
AT27LV256A-55RI
AT27LV256A-55TI
32J
28R
(1)
28T
Industrial
(-40° C to 85° C)
90 8 0.02 AT27LV256A-90JI
AT27LV256A-90RI
AT27LV256A-90TI
32J
28R
(1)
28T
Industrial
(-40° C to 85° C)
Note:
Not recommended for new designs. Use Green package option.
19.2 Green Package Option (Pb/Halide-free)
t
ACC
(ns)
I
CC
(mA)
Ordering Code Package Operation RangeActive Standby
55 8 0.02 AT27LV256A-55JU
AT27LV256A-55RU
AT27LV256A-55TU
32J
28R
(1)
28T
Industrial
(-40° C to 85° C)
90 8 0.02 AT27LV256A-90JU
AT27LV256A-90RU
AT27LV256A-90TU
32J
28R
(1)
28T
Industrial
(-40° C to 85° C)
Package Type
32J 32-lead, Plastic J-leaded Chip Carrier (PLCC)
28R 28-lead, 0.330" Wide, Plastic Gull Wing Small Outline (SOIC)
28T 28-lead, Thin Small Outline Package (TSOP)
12
0547G–EPROM–12/07
AT27LV256A
20. Packaging Information
20.1 32J – PLCC
DRAWING NO.
REV.
2325 Orchard Parkway
San Jose, CA 95131
R
TITLE
32J, 32-lead, Plastic J-leaded Chip Carrier (PLCC)
B
32J
10/04/01
1.14(0.045) X 45˚
PIN NO. 1
IDENTIFIER
1.14(0.045) X 45˚
0.51(0.020)MAX
0.318(0.0125)
0.191(0.0075)
A2
45˚ MAX (3X)
A
A1
B1
E2
B
e
E1 E
D1
D
D2
COMMON DIMENSIONS
(Unit of Measure = mm)
SYMBOL
MIN
NOM
MAX
NOTE
Notes: 1. This package conforms to JEDEC reference MS-016, Variation AE.
2. Dimensions D1 and E1 do not include mold protrusion.
Allowable protrusion is .010"(0.254 mm) per side. Dimension D1
and E1 include mold mismatch and are measured at the extreme
material condition at the upper or lower parting line.
3. Lead coplanarity is 0.004" (0.102 mm) maximum.
A 3.175 – 3.556
A1 1.524 – 2.413
A2 0.381 – –
D 12.319 – 12.573
D1 11.354 – 11.506 Note 2
D2 9.906 – 10.922
E 14.859 – 15.113
E1 13.894 – 14.046 Note 2
E2 12.471 – 13.487
B 0.660 – 0.813
B1 0.330 – 0.533
e 1.270 TYP
P1-P3P4-P6P7-P9P10-P12P13-P15

AT27LV256A-90TU

Mfr. #:
Buy AT27LV256A-90TU
Manufacturer:
Description:
IC EPROM 256K PARALLEL 28TSOP
Lifecycle:
New from this manufacturer.
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