AT28C256-25PC Atmel, AT28C256-25PC Datasheet - Page 25

• Manufacturer Part Number: AT28C256-25PC
• Manufacturer: Atmel

Specifications of AT28C256-25PC

• Density: 256Kb
• Interface Type: Parallel
• Organization: 32Kx8
• Access Time (max): 250ns
• Write Protection: Yes
• Data Retention: 10Year
• Operating Supply Voltage (typ): 5V
• Package Type: PDIP
• Operating Temp Range: 0C to 70C
• Supply Current: 50mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 28
• Lead Free Status / Rohs Status: Not Compliant

29.7
0006K–PEEPR–01/08
Notes:
28T – TSOP
R
2325 Orchard Parkway
San Jose, CA 95131
1. This package conforms to JEDEC reference MO-183.
2. Dimensions D1 and E do not include mold protrusion. Allowable
3. Lead coplanarity is 0.10 mm maximum.
protrusion on E is 0.15 mm per side and on D1 is 0.25 mm per side.
Pin 1 Identifier Area
e
E
TITLE
28T, 28-lead (8 x 13.4 mm) Plastic Thin Small Outline
Package, Type I (TSOP)
A1
b
PIN 1
D1 D
A2
A
SEATING PLANE
0º ~ 5º
SYMBOL
L
L1
A
A1
A2
D
D1
E
L
b
c
e
13.20
11.70
0.05
0.90
7.90
0.50
0.17
0.10
COMMON DIMENSIONS
MIN
(Unit of Measure = mm)
L1
–
GAGE PLANE
c
0.25 BASIC
0.55 BASIC
13.40
11.80
NOM
1.00
8.00
0.60
0.22
–
–
–
DRAWING NO.
13.60
11.90
MAX
1.20
0.15
1.05
8.10
0.70
0.27
0.21
AT28C256
28T
Note 2
Note 2
NOTE
12/06/02
REV.
C
25