M27C256B-12F6 STMicroelectronics, M27C256B-12F6 Datasheet - Page 21

• Manufacturer Part Number: M27C256B-12F6
• Description: IC EPROM 256KBIT 120NS 28CDIP
• Manufacturer: STMicroelectronics

Specifications of M27C256B-12F6

• Format - Memory: EPROMs
• Memory Type: UV EPROM
• Memory Size: 256K (32K x 8)
• Speed: 120ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-CDIP (0.600", 15.24mm) Window
• Capacitance, Input: 6 pF
• Capacitance, Output: 12 pF
• Current, Input, Leakage: ±10 μA (Read)
• Current, Operating: 30 mA (Read)
• Current, Output, Leakage: ±10 μA (Read)
• Current, Supply: 30 mA
• Density: 256K
• Organization: 32K×8
• Package Type: FDIP28W
• Temperature, Operating: -40 to +85 °C
• Temperature, Operating, Maximum: 85 °C
• Temperature, Operating, Minimum: -40 °C
• Time, Access: 120 ns
• Time, Fall: ≤20 ns
• Time, Programmable: 100 μA
• Time, Rise: ≤20 ns
• Voltage, Input, High: 6 V (Read)
• Voltage, Input, High Level: 2 V (Min.)
• Voltage, Input, Low: 0.8 V (Read)
• Voltage, Input, Low Level: 0.8 V (Typ.)
• Voltage, Output, High: 4.3 V (Read)
• Voltage, Output, Low: 0.4 V (Read)
• Voltage, Programmable: 12.75 V ± 0.25 V
• Voltage, Supply: 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1647-5

M27C256B
Figure 11. PLCC32 - 32 pin Rectangular Plastic Leaded Chip Carrier, package
1. Drawing is not to scale.
Table 14.
Symbol
CP
A1
A2
B1
D1
D2
D3
E1
E2
E3
A
B
D
E
R
N
e
F
E3
outline
PLCC32 - 32 pin Rectangular Plastic Leaded Chip Carrier, package
mechanical data
10.16
D2
7.62
1.27
0.89
Typ
D1
D3
D
1 N
D2
millimeters
12.32
11.35
14.86
13.89
3.17
1.53
0.38
0.33
0.66
4.78
6.05
0.00
Min
32
–
–
–
–
E1 E
12.57
11.51
15.11
14.05
Max
3.56
2.41
0.53
0.81
0.10
5.66
6.93
0.13
–
–
–
–
–
R
0.51 (.020)
F
1.14 (.045)
0.300
0.400
0.050
0.035
Typ
E2
E2
A1
A2
B
CP
inches
Package mechanical
0.125
0.060
0.015
0.013
0.026
0.485
0.447
0.188
0.585
0.547
0.238
0.000
Min
32
–
–
–
–
A
PLCC-A
B1
e
0.140
0.095
0.021
0.032
0.004
0.495
0.453
0.223
0.595
0.553
0.273
0.005
Max
–
–
–
–
–
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