AT27C256R-12RX Atmel, AT27C256R-12RX Datasheet - Page 11

• Manufacturer Part Number: AT27C256R-12RX
• Manufacturer: Atmel

Specifications of AT27C256R-12RX

• Organization: 32Kx8
• Interface Type: Parallel
• In System Programmable: External
• Access Time (max): 120ns
• Package Type: SOIC
• Reprogramming Technique: OTP
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Supply Current: 20mA
• Pin Count: 28
• Mounting: Surface Mount
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Compliant

Packaging Information
.050(1.27) TYP
.032(.813)
.026(.660)
32J, 32-Lead, Plastic J-Leaded Chip Carrier (PLCC)
Dimensions in Inches and (Millimeters)
JEDEC STANDARD MS-016 AE
28R, 28-Lead, 0.330" Wide, Plastic Gull Wing Small
Outline (SOIC)
Dimensions in Inches and (Millimeters)
.045(1.14) X 45˚
.453(11.5)
.447(11.4)
.495(12.6)
.485(12.3)
PIN NO. 1
IDENTIFY
.300(7.62) REF
.430(10.9)
.390(9.90)
.553(14.0)
.547(13.9)
AT CONTACT
POINTS
.022(.559) X 45˚ MAX (3X)
.595(15.1)
.585(14.9)
.025(.635) X 30˚ - 45˚
.021(.533)
.013(.330)
.140(3.56)
.120(3.05)
.012(.305)
.008(.203)
.030(.762)
.015(.381)
.095(2.41)
.060(1.52)
.530(13.5)
.490(12.4)
28P6, 28-Lead, 0.600" Wide, Plastic Dual Inline
Package (PDIP)
Dimensions in Inches and (Millimeters)
JEDEC STANDARD MS-011 AB
28T, 28-Lead, Plastic Thin Small Outline Package
(TSOP)
Dimensions in Millimeters and (Inches)*
*Controlling dimension: millimeters
SEATING
PLANE
.220(5.59)
0
5
.161(4.09)
.125(3.18)
0.55 (0.022)
MAX
.110(2.79)
REF
.090(2.29)
INDEX
MARK
.012(.305)
.008(.203)
AREA
BSC
7.15 (0.281)
8.10 (0.319)
7.90 (0.311)
REF
1.300(33.02) REF
0.70 (0.028)
0.30 (0.012)
0.20 (0.008)
0.10 (0.004)
.630(16.0)
.590(15.0)
1.47(37.3)
1.44(36.6)
.690(17.5)
.610(15.5)
.041(1.04)
.065(1.65)
0.27 (0.011)
0.18 (0.007)
11.9 (0.469)
11.7 (0.461)
15
0
REF
PIN
1
1.25 (0.049)
1.05 (0.041)
13.7 (0.539)
13.1 (0.516)
0.20 (0.008)
0.15 (0.006)
.022(.559)
.014(.356)
.566(14.4)
.530(13.5)
.015(.381)
.090(2.29)
.005(.127)
.065(1.65)
MAX
MIN
11