M27C256B15F1 STMicroelectronics, M27C256B15F1 Datasheet - Page 4

• Manufacturer Part Number: M27C256B15F1
• Description: IC, EPROM, 256KBIT, 150NS, DIP-28
• Manufacturer: STMicroelectronics

Specifications of M27C256B15F1

• Memory Type: EPROM - OTP
• Memory Size: 256Kbit
• Memory Configuration: 32K X 8
• Access Time: 150ns
• Supply Voltage Range: 4.5V To 5V
• Memory Case Style: DIP
• No. Of Pins: 28
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

List of figures
List of figures
Figure 1.
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Figure 11.
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Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DIP connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
LCC connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Programming flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
AC testing input output waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
AC testing load circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Read mode AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Programming and Verify modes AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
FDIP28WB - 28 pin Ceramic Frit-seal DIP, with window, package outline . . . . . . . . . . . . . 19
PDIP28 - 28 pin Plastic DIP, 600 mils width, package outline . . . . . . . . . . . . . . . . . . . . . . 20
PLCC32 - 32 pin Rectangular Plastic Leaded Chip Carrier, package outline. . . . . . . . . . . 21
M27C256B