M87C257-15F6 STMicroelectronics, M87C257-15F6 Datasheet - Page 18

• Manufacturer Part Number: M87C257-15F6
• Description: IC EPROM 256KBIT 150NS 28CDIP
• Manufacturer: STMicroelectronics

Specifications of M87C257-15F6

• Format - Memory: EPROMs
• Memory Type: UV EPROM
• Memory Size: 256K (32K x 8)
• Speed: 150ns
• 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
• Density: 256Kb
• Organization: 32Kx8
• Interface Type: Parallel
• Bus Type: Parallel
• In System Programmable: In System/External
• Access Time (max): 150ns
• Package Type: CFDIPW
• Reprogramming Technique: UV
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Supply Current: 50mA
• Pin Count: 28
• Mounting: Through Hole
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Package mechanical
5
18/22
Package mechanical
Figure 9.
1. Drawing is not to scale.
Table 12.
Symbol
D2
A1
A2
A3
B1
E1
eA
eB
C
D
Ø
N
A
B
E
e
L
S
FDIP28W - 28 pin Ceramic Frit-seal DIP, with window, package outline
FDIP28WB - 28 pin Ceramic Frit-seal DIP, with window (round 0.280"),
package mechanical data
33.02
15.24
14.99
1.45
2.54
7.11
Typ
A2
B1
N
1
millimeters
S
36.50
13.06
16.18
0.51
3.91
3.89
0.41
0.23
3.18
1.52
Min
28
4°
–
–
–
–
–
–
D2
D
B
A1
e
37.34
13.36
18.03
A3
E1
Max
5.72
1.40
4.57
4.50
0.56
0.30
4.10
2.49
11°
–
–
–
–
–
–
A
L
E
0.057
1.300
0.600
0.100
0.590
0.280
Typ
eA
eB
FDIPW-a
C
inches
0.020
0.154
0.153
0.016
0.009
1.437
0.514
0.637
0.125
0.060
Min
28
4°
–
–
–
–
–
–
M87C257
0.225
0.055
0.180
0.177
0.022
0.012
1.470
0.526
0.710
0.161
0.098
Max
11°
–
–
–
–
–
–